INTERRUPTORES Y SENSORES DE PRESION Y TEMPERATURA

Transcription

Desde1963
INTERRUPTORES Y
Proveedor
SENSORES
DEIntegral
PRESION Y
de Soluciones para
TEMPERATURA
la Industria
INTERRUPTORES Y SENSORES DE PRESION Y
TEMPERATURA
Los interruptores ASCO Tripoint, utilizan la tecnología de
diafragma/pistón para un sensado preciso de presión y temperatura,
garantizado un excelente tiempo de vida. Los materiales de
fabricación son diversos y dependen de fluido a manejar.
Los SENSORES ASCO son maquinados en una sola pieza (cuerpo y
diafragma) para eliminar los problemas ocasionados por el desgaste
de partes internas, garantizando así el tiempo más largo del
mercado.
Sensores ASCO
Interruptores ASCO
TRIPOINT
®
ASCO Pressure and Temperature Switch
SELECTION GUIDE and INDEX
Switches
Type
Set Point
Reset Point
Enclosure
Ranges
Pages
Sealed
6.5 - 162
(psig)
2-3
Open Frame,
General Purpose,
Watertight
4 - 200
(psig)
4-7
PRESSURE
J-SERIES Miniature Pressure Switches with Non-Adjustable Set Points
Pressure
Non-Adjustable
Fixed
H-SERIES Miniature Pressure Switches with Adjustable Set Points
Pressure
Adjustable
Fixed,
Adjustable
P-SERIES Switches for Vacuum - 6000 psig with Open Frame, Type 1 or Type 4 Enclosures
Vacuum,
Compound,
Pressure
Adjustable
Fixed,
Adjustable
Open Frame,
General Purpose,
Watertight
Vacuum 6000
(psig)
8 - 13
S-SERIES Switches for Vacuum - 8000 psig, or Differential with Type 1, Type 4 or Type 7, 9 Enclosures
Pressure,
Vacuum,
Differential,
Combustion
In. of W.C.
Adjustable
General Purpose,
Fixed,
Watertight,
Adjustable,
Manual Reset Explosion-Proof
Vacuum 8000
(psig)
14 - 23
TEMPERATURE
P-SERIES Switches for -60 through 510°F with Open Frame, Type 1 or Type 4 Enclosures
Temperature
Adjustable
Fixed,
Adjustable
Open Frame,
General Purpose, -60 - 510°F
Watertight
24 - 29
S-SERIES Switches for -60 through 640° F with Type 1, Type 4 or Type 7, 9 Enclosures
Temperature
Adjustable
General Purpose,
Fixed,
-60 - 640°F
Watertight,
Adjustable,
Manual Reset Explosion-Proof
30 - 33
Options, Definitions and Compatibility Table.........Pages 34 through Inside Back Cover
1
J-SERIES Miniature Pressure Switches
Low-Cost Switches with Non-Adjustable Set Points
Features:
• Tamperproof, factory-set, non-adjustable set points.
• Fixed deadband.
• Environmentally sealed against dust, water, oil and
salt spray, e.g., for off-highway equipment.
• Vented construction for stable set points throughout
operating range.
• Vibration and shock resistant to 10 G’s.
• Precision electrical snap-action switch.
General Description:
J-Series miniature pressure switches have factory-set
non-adjustable set points and fixed deadband, with
diaphragm/piston sensor. J-Series switches are CSA
approved and UL listed under “Industrial Control
Equipment”. J-Series switches are sealed with specially
compounded epoxy that maintains its sealing integrity
from -40 to 250°F.
Proof pressure:
250 psig. (Consult factory for higher pressures).
Process connection:
Standard: 1/8” NPT Ext, 1/8” NPT Int, 1/4” NPT Ext.
Optional: 1/4” NPT Int (eighth digit “3”).
Standard Electrical Ratings
Dimensions (inches)
J-Series Pressure
With Terminal
Screw Connections
With Lead Wires
1 INCH
DIA.
1 INCH
DIA.
18
5 Amp Res., 125 VAC
5 Amp Res., 250 VAC
3 Amp Res., 28 VDC
&%
3.5
Standard Temperature Ratings
Ambient: -4°F (-20°C) to 140°F (60°C)
Fluid:
-4°F (-20°C) to 180°F (82°C)
4
Wetted Materials (Process Connection & Diaphragm)
Standard: Brass and Buna “N”
Optional Process Connections:
• 316 SS (sixth digit “4”)
• Carbon steel (sixth digit “6”)
Optional Diaphragms:
• FKM (seventh digit “2”)
• Neoprene (seventh digit “3”)
• Ethylene propylene (seventh digit “6”)
• Fluorosilicone (seventh digit “7”)
2
1/8 NPT INTERNAL,
1/8 NPT EXTERNAL OR
1/4 EXTERNAL
Switch Options
Gold contacts for low power circuits: Add Suffix “P”
Tight deadband, 25-50% reduction: Add Suffix “T”
11 Amp Res., 125 VAC contacts: Add Suffix “Y”
4
123
Select J-Series pressure switch below
How to Select and Order
1/8” NPT
1/4” NPT
1/8” NPT
Mfg. Set External Process External Process Internal Process
Decreasing Increasing
Point
Connection
Connection
Connection 3
Pressure
Pressure Tolerance
(psig)
(psig)
Catalog No.
Catalog No.
Catalog No.
(psig)
Set Point
ASCO J-Series switches are a
single switch and transducer
assembly.
1
2
Normally open, screw terminals, Brass and Buna “N”
How to Select
6.5
10.5
18.5
30
40
56
71
93
138
1. Select type of switch (normally open,
normally closed or SPDT and screw
terminal or wire leads).
2. Select desired set point for either
decreasing pressure or increasing
pressure.
3. Select desired process connection.
How to Order
8.5
12.5
22
35
45
65
85
108
162
1.2
1.5
2
3
4
6
7
8
12
JB67A218A
JB57A218A
JB47A218A
JB37A218A
JB27A218A
JB17A218A
JC37A218A
JC27A218A
JC17A218A
JB67A214A
JB57A214A
JB47A214A
JB37A214A
JB27A214A
JB17A214A
JC37A214A
JC27A214A
JC17A214A
JB67A215A
JB57A215A
JB47A215A
JB37A215A
JB27A215A
JB17A215A
JC37A215A
JC27A215A
JC17A215A
Normally open, 18” lead wires, Brass and Buna “N”
Simply order the selected J-Series
pressure switch by catalog number,
e.g., JB67A218A describes a normally
open, screw terminal pressure switch
with set point decreasing of 6.5 psig
and set point increasing of 8.5 psig,
1/8” NPT external brass process
connection and Buna “N” diaphragm.
6.5
10.5
18.5
30
40
56
71
93
138
Options
Add appropriate suffix or change
appropriate digit in catalog number
for desired option, e.g., JB67A2 2 8A P
describes a normally open, screw
terminal pressure switch with optional
FKM diaphragm (seventh digit “2”) and
gold contact snap switch (suffix “P”).
8.5
12.5
22
35
45
65
85
108
162
1.2
1.5
2
3
4
6
7
8
12
JB68A218A
JB58A218A
JB48A218A
JB38A218A
JB28A218A
JB18A218A
JC38A218A
JC28A218A
JC18A218A
JB68A214A
JB58A214A
JB48A214A
JB38A214A
JB28A214A
JB18A214A
JC38A214A
JC28A214A
JC18A214A
JB68A215A
JB58A215A
JB48A215A
JB38A215A
JB28A215A
JB18A215A
JC38A215A
JC28A215A
JC18A215A
Normally closed, screw terminals, Brass and Buna “N”
6.5
10.5
18.5
30
40
56
71
93
138
8.5
12.5
22
35
45
65
85
108
162
1.2
1.5
2
3
4
6
7
8
12
JB67A218B
JB57A218B
JB47A218B
JB37A218B
JB27A218B
JB17A218B
JC37A218B
JC27A218B
JC17A218B
JB67A214B
JB57A214B
JB47A214B
JB37A214B
JB27A214B
JB17A214B
JC37A214B
JC27A214B
JC17A214B
JB67A215B
JB57A215B
JB47A215B
JB37A215B
JB27A215B
JB17A215B
JC37A215B
JC27A215B
JC17A215B
Normally closed, 18” lead wires, Brass and Buna “N”
6.5
10.5
18.5
30
40
56
71
93
138
8.5
12.5
22
35
45
65
85
108
162
1.2
1.5
2
3
4
6
7
8
12
JB68A218B
JB58A218B
JB48A218B
JB38A218B
JB28A218B
JB18A218B
JC38A218B
JC28A218B
JC18A218B
JB68A214B
JB58A214B
JB48A214B
JB38A214B
JB28A214B
JB18A214B
JC38A214B
JC28A214B
JC18A214B
JB68A215B
JB58A215B
JB48A215B
JB38A215B
JB28A215B
JB18A215B
JC38A215B
JC28A215B
JC18A215B
SPDT (Form “C” contact), 18” lead wires, Brass and Buna “N”
6.5
10.5
18.5
30
40
56
71
93
138
1
2
3
8.5
12.5
22
35
45
65
85
108
162
1.2
1.5
2
3
4
6
7
8
12
JB68A218C
JB58A218C
JB48A218C
JB38A218C
JB28A218C
JB18A218C
JC38A218C
JC28A218C
JC18A218C
JB68A214C
JB58A214C
JB48A214C
JB38A214C
JB28A214C
JB18A214C
JC38A214C
JC28A214C
JC18A214C
JB68A215C
JB58A215C
JB48A215C
JB38A215C
JB28A215C
JB18A215C
JC38A215C
JC28A215C
JC18A215C
Values shown are nominal.
Deadband value is difference between the increasing and decreasing set points.
May be used for panel or bracket mounting.
3
H-SERIES Miniature Pressure Switches
Low-Cost Switches with Adjustable Set Points
Features:
• Field adjustable set points.
• Fixed deadband.
• Choice of open frame type, general purpose or
watetight enclosure.
• Small size.
• Mounts in any position.
• Rugged and vibration resistant, e.g., for compressors.
• Visual adjustment scales in psig and bars.
H-Series miniature pressure switches have field
adjustable set points and fixed deadband, with
diaphragm/piston sensor. They are available in open
frame construction, Type 1 general purpose or Type 4
watertight enclosures. The resilient diaphragm/piston
construction helps provide long life and maintains set
point repeatability despite environmental temperature
variations. The full size electical switch is a precision UL
listed, snap-action type. H-Series switches are
CSA approved and are UL listed under “Industrial
Control Equipment”.
Proof pressure:
250 psig. (Consult factory for higher pressures).
Process connection:
Standard: 1/8” NPT Ext, 1/8” NPT Int, 1/4” NPT Ext.
Optional: 1/4” NPT Int (eighth digit “3”).
15 Amp Res., 125 VAC
1/8 HP, 125 VAC
1/4 HP, 250 VAC
1/2 Amp Res., 125 VDC
SPDT
NO
C
NC
^ %
1
1
Open frame construction, UL recognized component.
Wetted Materials (Process Connection & Diaphragm)
Standard: Brass and Buna “N”
Optional Process Connections:
• 316 SS (sixth digit “4”)
• Carbon steel (sixth digit “6”)
Optional Diaphragms:
• FKM (seventh digit “2”)
• Neoprene (seventh digit “3”)
• Ethylene propylene (seventh digit “6”)
• Fluorosilicone (seventh digit “7”)
Ambient: -4°F (-20°C) to 140°F (60°C)
Fluid:
-4°F (-20°C) to 180°F (82°C)
4
Switch Options
See page 34 for optional snap switches.
4
123
Select H-Series pressure switch below
SPDT (Form “C” Contact), Brass and Buna “N”
ASCO H-Series switches are a single
switch and transducer assembly.
Adjustable
Operating
Range
(psig)
How to Select
1. Select type of switch (open frame,
general purpose or watertight)..
2. Select the adjustable operating range
based on the desired actuation pressure.
Fixed
1/8” NPT
1/4” NPT
1/8” NPT
Deadband External Process External Process Internal Process
At
Connection
Connection
Connection 2
Mid-Range
(psig) 1
Catalog No.
Catalog No.
Catalog No.
Open frame construction
4
8
20
35
40
80
How to Order
Simply order the selected H-Series pressure
switch by catalog number, e.g., HB46A218
describes an open frame pressure switch
with adjustable operating range of 4 to 12
psig, 1/8” NPT external brass process
-
HB46A218
HB36A218
HB26A218
HB16A218
HC26A218
HC16A218
1.6
1.8
2.4
3.5
7.0
10.0
12
25
50
80
120
200
HB46A214
HB36A214
HB26A214
HB16A214
HC26A214
HC16A214
HB46A215
HB36A215
HB26A215
HB16A215
HC26A215
HC16A215
HB40A214
HB30A214
HB20A214
HB10A214
HC20A214
HC10A214
HB40A215
HB30A215
HB20A215
HB10A215
HC20A215
HC10A215
HB41A214
HB31A214
HB21A214
HB11A214
HC21A214
HC11A214
HB41A215
HB31A215
HB21A215
HB11A215
HC21A215
HC11A215
Type 1 - General purpose enclosure
4
8
20
35
40
80
Options
Add appropriate suffix or change appropriate
digit in catalog number for desired option, e.g.,
HB46A2 2 8 P describes an open frame pressure switch with optional FKM diaphragm
(seventh digit “2”) and gold contact snap
switch (suffix “P”).
-
HB40A218
HB30A218
HB20A218
HB10A218
HC20A218
HC10A218
1.6
1.8
2.4
3.5
7.0
10.0
12
25
50
80
120
200
Type 4 - Watertight enclosure
4
8
20
35
40
80
1
-
HB41A218
HB31A218
HB21A218
HB11A218
HC21A218
HC11A218
1.6
1.8
2.4
3.5
7.0
10.0
12
25
50
80
120
200
2
Dimensions (inches)
H-Series Pressure
General Purpose Enclosure
1.7
2.8
2.2
Open Frame
Watertight Enclosure
2.5
2.1
1.0
.8
5.0
5.2
3.5
1/8 NPT INTERNAL
.9
1/8 NPT INTERNAL
4.0
1/2NPT
7/8
KNOCKOUT
BOTH
SIDES
1/8 NPT EXTERNAL OR
1/4 EXTERNAL
1.0
1/8 NPT INTERNAL
5
H-SERIES Miniature Pressure Switches
Suffix S: Low-Cost Switches with
Adjustable Set Points and Adjustable Deadband
Features:
• Field adjustable set points.
• Limited adjustable deadband.
• Choice of open frame type, general
purpose or watetight enclosure.
• Small size.
• Rugged and vibration resistant,
e.g., for compressors.
• Visual adjustment scales in psig
and bars.
Standard Ratings and
Wetted Materials
(See page 4)
Dimensions
(See page 5)
Select H-Series Suffix S switch below
ASCO H-Series Suffix S switches are a
single switch and transducer assembly.
How to Select
Adjustable
Operating
Range
(psig)
1. Select type of switch enclosure (open
frame, general purpose or watertight).
based on the desired actuation pressure and
desired deadband (reactuation) pressure.
Open frame construction
4
8
20
35
40
80
How to Order
Simply order the selected H-Series Suffix S
e.g., HB46A218S describes an open frame
H-Series Suffix S pressure switch with
adjustable operating range of 4 to 12 psig
and adjustable deadband at mid-range of 1.5
to 3.5 psig, 1/8” NPT external brass process
-
12
25
50
80
120
200
1.5
2
3
6
8
15
-
3.5
4
5
8
13
20
HB46A218S
HB36A218S
HB26A218S
HB16A218S
HC26A218S
HC16A218S
HB46A214S
HB36A214S
HB26A214S
HB16A214S
HC26A214S
HC16A214S
HB46A215S
HB36A215S
HB26A215S
HB16A215S
HC26A215S
HC16A215S
HB40A214S
HB30A214S
HB20A214S
HB10A214S
HC20A214S
HC10A214S
HB40A215S
HB30A215S
HB20A215S
HB10A215S
HC20A215S
HC10A215S
HB41A214S
HB31A214S
HB21A214S
HB11A214S
HC21A214S
HC11A214S
HB41A215S
HB31A215S
HB21A215S
HB11A215S
HC21A215S
HC11A215S
Type 1 - General purpose enclosure
4
8
20
35
40
80
Options (See page 4)
Change appropriate digit in catalog number
for desired option, e.g., HB46A2 2 8S
with adjustable operating range and deadband
with optional FKM diaphragm (seventh digit “2”).
-
12
25
50
80
120
200
1.5
2
3
6
8
15
-
3.5
4
5
8
13
20
HB40A218S
HB30A218S
HB20A218S
HB10A218S
HC20A218S
HC10A218S
Type 4 - Watertight enclosure
4
8
20
35
40
80
1
6
Adjustable
Deadband
1/8” NPT
1/4” NPT
1/8” NPT
At
External Process External Process Internal Process
Mid-Range
Connection
Connection
Connection 2
(psig) 1
Catalog No.
Catalog No.
Catalog No.
From/To
-
12
25
50
80
120
200
1.5
2
3
6
8
15
-
3.5
4
5
8
13
20
HB41A218S
HB31A218S
HB21A218S
HB11A218S
HC21A218S
HC11A218S
2
4
123
Suffix L: Lowest-Cost Switches with
Adjustable Set Points (Open Frame Construction)
Features:
• Low cost for OEM applications.
• Miniature size.
• Wide selection of adjustable ranges.
• Fixed deadband.
• Resilient diaphragm/piston sensor
for long life.
• Precision single-pole, double-throw
snap switch with quick-connect 1/4”
spade terminals.
Standard Ratings and
Wetted Materials
(See page 4)
Dimensions (inches)
2.2
1.2
ASCO H-Series Suffix L switches are a
single switch and transducer assembly.
How to Select
based on the desired actuation pressure.
3.4
How to Order
Simply order the selected H-Series Suffix L
e.g., HB46A218L describes an open frame
pressure switch with adjustable operating
range of 4 to 12 psig, 1/8” NPT external brass
process connection and Buna “N” diaphragm.
Options (See page 4)
Select H-Series Suffix L switch below
Change appropriate digit in catalog number
for desired option, e.g., HB46A2 2 8L
with adjustable operating range and optional
FKM diaphragm (seventh digit “2”).
Note: Optional snap switches not available
on suffix “L” units.
Adjustable
Operating
Range
(psig)
4
8
20
35
40
80
1
-
12
25
50
80
120
200
Fixed
1/8” NPT
1/4” NPT
1/8” NPT
Deadband External Process External Process Internal Process
At
Connection
Connection
Connection 2
Mid-Range
Catalog No.
Catalog No.
Catalog No.
(psig) 1
3.0
3.6
5.5
7.0
14.0
21.0
HB46A218L
HB36A218L
HB26A218L
HB16A218L
HC26A218L
HC16A218L
2
HB46A214L
HB36A214L
HB26A214L
HB16A214L
HC26A214L
HC16A214L
HB46A215L
HB36A215L
HB26A215L
HB16A215L
HC26A215L
HC16A215L
7
P-SERIES Pressure Switches
Switches for Vacuum through 6000 psig with
Adjustable Set Points and Fixed or Adjustable Deadband
Features:
• Set point repeatability, +1% of operating range.
• All wiring terminals, adjustments and visual scales
are accessible from the front of the switch.
• Choice of open frame type, general purpose or
watertight enclosure.
• Choice of fixed, limited-adjustable or full-range
adjustable deadband.
• Choice of single or two-stage units.
• Compact size.
• Rugged and vibration resistant; e.g., for compressors.
• Visual adjustment scales in psig and bars.
• Wide selection of transducer wetted materials
suitable for air, water, oil or corrosive fluids.
• Mix and match switch and transducer components for
increased stock flexibility or to change pressure
ranges in field.
ASCO P-Series pressure switches consist of an open
frame or enclosure protected switch unit and a
transducer unit. They can be ordered separately for customer stocking and/or field assembly or as a
complete factory-assembled unit.
Switch
P-Series pressure switch units incorporate the unique
ASCO TRI-POINT alternating fulcrum balance plate to
control the operation of one or more electrical snapaction swtiches. The electrical snap-action switch
together with the adjusting mechanism is a fully-tested,
self-contained subassembly.
PA, PB, PC 1 Series
1/8 HP, 125 VAC
1/4 HP, 250 VAC
PG Series
1/8 HP, 125 VAC
1/4 HP, 250 VAC
SPDT
NO
C
NC
^%
PC Series, UL recognized component, rated
10 Amp Res., 125/250 VAC; 1/3 HP 125/250 VAC.
2 Open frame construction, UL recognized component.
3 FM listed for air flow interlocking service.
1
2
#
3
Transducer
Transducer unit incorporates a diaphragm/piston
type pressure sensor, and is also a fully-tested,
Operation
When pressure is applied to the transducer it is
converted into movement of the piston. This piston
movement is then used to control the operation of
the electrical snap-action switch in the switch unit.
Options (See pages 34-35)
8
Ambient: -4°F (-20°C) to 122°F (50°C)
Fluid:
For Buna “N” or Neoprene Diaphragm
-4°F (-20°C) to 180°F (82°C)
For FKM Diaphragm
-4°F (-20°C) to 250°F (121°C)
For 316 SS Diaphragm
-50°F (-45°C) to 300°F (149°C)
For Nylon Transducers
-4°F (-20°C) to 180°F (82°C)
4
123
Enclosures
ASCO TRI-POINT switches are available in either a
general purpose or watertight enclosure, in addition to
open frame construction. These enclosed units are
made in accordance with NEMA and UL standards.
These standards define the protection level an
enclosure gives and the tests it must pass to meet
a particular design.
General Purpose – Type 1. These enclosures are
designed for indoor use to protect personnel from
accidental contact with the equipment. P-Series
general purpose enclosures are painted, zinc-coated
steel and have a 7/8” diameter hole at the top for
electrical entry.
Watertight – Type 4. Watertight and dust-tight
enclosures are intended for use indoors and outdoors
to protect the enclosed equipment against splashing or
falling water, windblown dust and water, hose directed
water, and severe external condensation. P-Series
watertight switch enclosures are epoxy-painted, zinccoated steel with a 1/2” conduit hub in the side of the
lower housing for electrical entry. (For optional 316 SS
watertight enclosure see page 13.)
Dimensions (inches)
P-Series Pressure (Mounting brackets optional)
Open Frame PA and PC Switch Units
with Transducer Unit
2.5
Open Frame PB and PG Switch Units
.233 DIA HOLES
FOR MOUNTING
WITH #10 (.190 DIA.)
SCREWS (2 PLACES)
2.5
1.8
5.5
5.2
4.9
5.7
4.6
.3
.3
1/4 OR
1/2 NPT
1/4 OR
1/2 NPT
1.5
1.5
.08
2.7
1.8
.08
1.8
2.5
2.5
2.7
.233 DIA HOLES FOR
MOUNTING WITH #10
(.190 DIA.) SCREWS (2 PLACES)
.233 DIA. HOLES FOR
MOUNTING WITH #10
(.190 DIA.) SCREWS (2 PLACES)
Type 1 General Purpose Switch Unit
Type 4 Watertight Switch Unit
1.5
7/8 DIA. HOLE
FOR 1/2 CONDUIT
CONNECTION
.9
.7
2.6
1.8
.5
ADDITIONAL SPACING REQUIRED
FOR REMOVAL OF COVER
.08
4.9
4.5
1.8
2.5
4.0
.223 DIA. HOLES
FOR MOUNTING
WITH #10 (.190 DIA.)
SCREWS (2 PLACES)
5.4
5.7
1/2 NPT
CONDUIT
CONNECTION
5.2
6.2
5.2
1/4 OR
1/2 NPT
1.3
.3
.08
2.8
2.9
1.8
.233 DIA. HOLES FOR MOUNTING
WITH #10 (.190 DIA.) SCREWS (2 PLACES)
2.5
2.0
4.0
1/4 OR
1/2 NPT
.233 DIA.
HOLES FOR
MOUNTING
WITH #10
(.190 DIA.)
SCREWS
(2 PLACES)
.280 DIA.
HOLES (2 PLACES)
.4
.8
.08
1.8
2.03
9
4
Select transducer unit below
How to Order
Factory assembled – Simply order the switch and
transducer unit by catalog number joined by a slash (/),
e.g., PA36A/RD30A11.
Field assembled – Simply order the switch and
transducer units separately by individual catalog
number, e.g., one PA36A and one RD30A11.
Options – Add appropriate suffix for desired option
or accessory (see pages 34-35).
Important Note: The third digit of each of the catalog
numbers must be identical,
e.g., PA 3 6A and RD 3 0A11.
ASCO P-Series switches consist of two components, the switch unit and the transducer unit.
How to Select
1. Select the adjustable operating range based on desired actuation pressure.
2. Check that proof pressure is sufficient.
3. Read across and select the desired P-Series switch unit with the proper enclosure.
4. Continue across and select a matching transducer unit compatible with the fluid.
Select P-Series pressure switch
PA Switch Unit
PA, PB, or PC unit below
PB Switch Unit
Single-Stage Adjustable Deadband
units allow independent adjustment of the
set and reset points over the full operating
range of the switch. The
minimum difference
between set and reset
points is the deadband
listed below; the
maximum difference
is the full range of
the switch .
PC Switch Unit
Two-Stage Fixed Deadband units consist of two
separate snap-action switches, each with an
independently adjustable set point and non-adjustable
reset point. The difference between
the set and reset points of each
switch is the deadband listed below;
the minimum difference between
the set points of the two switches is
the separation.
Single-Stage Fixed Deadband units
have an adjustable set point and a
non-adjustable automatic reset point.
Standard connection is 1/4” NPT
(optional 1/2” NPT add suffix “B” to catalog number)
Transducer Unit
These guage pressure type transducers provide for one
pressure connection in the bottom of the transducer. They
are diaphragm/piston type transducers using an elastomer
in contact with the fluid, backed by a piston cylinder. This
allows high sensitivity for low pressures and strength for
high pressures.
Open Frame
Specifications
Open Frame
Open Frame
Adjustable Deadband
Fixed Deadband
Two-Stage Fixed Deadband
Adjustable
Deadband
Adjustable
Operating
Range
(psig)
Maximum
Full Scale
Proof
Pressure
(psig)
Transducer Units
Separation
General
Purpose
Watertight
Enclosure
Minimum At
Mid-Range Catalog
(In W.C.) 1
No.
Catalog
No.
Catalog
No.
Fixed
Deadband
At
Mid-Range
(psig) 1
Open
Frame
123
Open
Frame
General
Purpose
Watertight
Enclosure
Catalog
No.
Catalog
No.
Catalog
No.
Maximum
Fixed
Open
Full Scale
Deadband
Frame
At
Minimum At
Mid-Range Mid-Range Catalog
(psig) 1
(psig) 1
No.
Air or
Gas 2
Air, Oil or
Gas
Water, Air,
Oil or Gas
Corrosive Fluids
General
Purpose
Watertight
Enclosure
Nylon &
Buna “N”
Aluminum &
Buna “N”
Brass &
Buna “N”
All
316 SS
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
3
316 SS &
Viton 4
Vacuum
0 - 30” Hg
50
4” Hg
PA36A
PA30A
PA31B
1” Hg
PB36A
PB30A
PB31B
2.7” Hg
3” Hg
PC36A
PC30A
PC31B
---
RV34A11
RV34A21
---
RV34A32
50
6” Hg
PA26A
PA20A
PA21B
1” Hg
PB26A
PB20A
PB21B
4.3” Hg
6” Hg
PC26A
PC20A
PC21B
---
RV24A11
RV24A21
---
RV24A32
--1.2
1.8
2.5
4.0
5.4
9
18
27
36
54
90
250
300
650
--PA36A
PA26A
PA36A
PA26A
PA16A
PA16A
PA16A
PA16A
PA16A
PA26A
PA16A
PA26A
PA16A
PA16A
--PA30A
PA20A
PA30A
PA20A
PA10A
PA10A
PA10A
PA10A
PA10A
PA20A
PA10A
PA20A
PA10A
PA10A
--PA31B
PA21B
PA31B
PA21B
PA11B
PA11B
PA11B
PA11B
PA11B
PA21B
PA11B
PA21B
PA11B
PA11B
0.05
0.4
0.4
0.6
0.7
0.9
1.5
3.0
5.0
6
12
15
100
125
200
PB46A
PB36A
PB26A
PB36A
PB26A
PB16A
PB16A
PB16A
PB16A
PB16A
PB26A
PB16A
PB26A
PB16A
PB16A
PB40A
PB30A
PB20A
PB30A
PB20A
PB10A
PB10A
PB10A
PB10A
PB10A
PB20A
PB10A
PB20A
PB10A
PB10A
PB41B
PB31B
PB21B
PB31B
PB21B
PB11B
PB11B
PB11B
PB11B
PB11B
PB21B
PB11B
PB21B
PB11B
PB11B
--0.6
0.8
1.2
2.0
2.4
4
8
12
16
30
40
200
250
400
--1.0
1.8
1.8
3.6
6.0
10
20
30
40
60
100
300
400
600
--PC36A
PC26A
PC36A
PC26A
PC16A
PC16A
PC16A
PC16A
PC16A
PC26A
PC16A
PC26A
PC16A
PC16A
--PC30A
PC20A
PC30A
PC20A
PC10A
PC10A
PC10A
PC10A
PC10A
PC20A
PC10A
PC20A
PC10A
PC10A
-PC31B
PC21B
PC31B
PC21B
PC11B
PC11B
PC11B
PC11B
PC11B
PC21B
PC11B
PC21B
PC11B
PC11B
RD40A71
RD30A71
RD20A71
--RE20A71
RE10A71
RF10A71
RG10A71
---------------
RD40A11
RD30A11
RD20A11
--RE20A11
RE10A11
RF10A11
RG10A11
RH10A11
RJ10A11
-----------
RD40A21
RD30A21
RD20A21
--RE20A21
RE10A21
RF10A21
RG10A21
RH10A21
RJ10A21
RL20A21
RL10A21
RN20B21
RN10B21
---
------RE30A44
RE20A44
RE10A44
RF10A44
RG10A44
RH10A44
RJ10A44
-----------
RD40A42
RD30A42
RD20A42
--RE20A42
RE10A42
RF10A42
RG10A42
RH10A42
RJ10A42
RL20A42
RL10A42
RN20B42
RN10B42
RQ10B42
Compound
30”Hg - 14 psig
Pressure
0
0
2
2
4
6
10
20
30
40
60
100
160
270
600
-
4
9
18
18
36
60
100
200
300
400
600
1000
1650
2700
6000
60
60
60
100
150
150
200
400
450
500
2000
2000
5000
5000
9000
All switch units above are in stock for immediate delivery.
10
1
2
Rated proof pressure on RF10A71 is 150 psig and on RG10A71 is 300 psig.
All switch units and transducer units above are in stock for immediate delivery.
3
316 SS transducer deadbands are approx. 50% greater than listed.
4
Transducers ending in 32 have 303 SS process connections, not 316 SS.
11
4
How to Order
e.g., PA36A/RD30A11.
number, e.g., one PA36A and one RD30A11.
e.g., PA 3 6A and RD 3 0A11.
How to Select
1. Select the adjustable operating range based on desired actuation pressure.
2. Check that proof pressure is sufficient.
3. Read across and select the desired P-Series switch unit with the proper enclosure.
4. Continue across and select a matching transducer unit compatible with the fluid.
Select P-Series pressure switch
PA Switch Unit
PB Switch Unit
units allow independent adjustment of the
set and reset points over the full operating
range of the switch. The
minimum difference
listed below; the
maximum difference
the switch .
PC Switch Unit
reset point. The difference between
the set and reset points of each
switch is the deadband listed below;
the minimum difference between
the set points of the two switches is
the separation.
Transducer Unit
These guage pressure type transducers provide for one
pressure connection in the bottom of the transducer. They
are diaphragm/piston type transducers using an elastomer
allows high sensitivity for low pressures and strength for
high pressures.
Open Frame
Specifications
Open Frame
Open Frame
Adjustable Deadband
Fixed Deadband
Adjustable
Deadband
Adjustable
Operating
Range
(psig)
Maximum
Full Scale
Proof
Pressure
(psig)
Transducer Units
Separation
General
Purpose
Watertight
Enclosure
Minimum At
Mid-Range Catalog
No.
(In W.C.) 1
Catalog
No.
Catalog
No.
Fixed
Deadband
At
Mid-Range
(psig) 1
Open
Frame
123
Open
Frame
General
Purpose
Watertight
Enclosure
Catalog
No.
Catalog
No.
Catalog
No.
Maximum
Fixed
Open
Full Scale
Deadband
Frame
At
Minimum At
Mid-Range Mid-Range Catalog
(psig) 1
(psig) 1
No.
Air or
Gas 2
Air, Oil or
Gas
Water, Air,
Oil or Gas
Corrosive Fluids
General
Purpose
Watertight
Enclosure
Nylon &
Buna “N”
Aluminum &
Buna “N”
Brass &
Buna “N”
All
316 SS
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
3
316 SS &
FKM 4
Vacuum
0 - 30” Hg
50
4” Hg
PA36A
PA30A
PA31B
1” Hg
PB36A
PB30A
PB31B
2.7” Hg
3” Hg
PC36A
PC30A
PC31B
---
RV34A11
RV34A21
---
RV34A32
50
6” Hg
PA26A
PA20A
PA21B
1” Hg
PB26A
PB20A
PB21B
4.3” Hg
6” Hg
PC26A
PC20A
PC21B
---
RV24A11
RV24A21
---
RV24A32
--1.2
1.8
2.5
4.0
5.4
9
18
27
36
54
90
250
300
650
--PA36A
PA26A
PA36A
PA26A
PA16A
PA16A
PA16A
PA16A
PA16A
PA26A
PA16A
PA26A
PA16A
PA16A
--PA30A
PA20A
PA30A
PA20A
PA10A
PA10A
PA10A
PA10A
PA10A
PA20A
PA10A
PA20A
PA10A
PA10A
--PA31B
PA21B
PA31B
PA21B
PA11B
PA11B
PA11B
PA11B
PA11B
PA21B
PA11B
PA21B
PA11B
PA11B
0.05
0.4
0.4
0.6
0.7
0.9
1.5
3.0
5.0
6
12
15
100
125
200
PB46A
PB36A
PB26A
PB36A
PB26A
PB16A
PB16A
PB16A
PB16A
PB16A
PB26A
PB16A
PB26A
PB16A
PB16A
PB40A
PB30A
PB20A
PB30A
PB20A
PB10A
PB10A
PB10A
PB10A
PB10A
PB20A
PB10A
PB20A
PB10A
PB10A
PB41B
PB31B
PB21B
PB31B
PB21B
PB11B
PB11B
PB11B
PB11B
PB11B
PB21B
PB11B
PB21B
PB11B
PB11B
--0.6
0.8
1.2
2.0
2.4
4
8
12
16
30
40
200
250
400
--1.0
1.8
1.8
3.6
6.0
10
20
30
40
60
100
300
400
600
--PC36A
PC26A
PC36A
PC26A
PC16A
PC16A
PC16A
PC16A
PC16A
PC26A
PC16A
PC26A
PC16A
PC16A
--PC30A
PC20A
PC30A
PC20A
PC10A
PC10A
PC10A
PC10A
PC10A
PC20A
PC10A
PC20A
PC10A
PC10A
-PC31B
PC21B
PC31B
PC21B
PC11B
PC11B
PC11B
PC11B
PC11B
PC21B
PC11B
PC21B
PC11B
PC11B
RD40A71
RD30A71
RD20A71
--RE20A71
RE10A71
RF10A71
RG10A71
---------------
RD40A11
RD30A11
RD20A11
--RE20A11
RE10A11
RF10A11
RG10A11
RH10A11
RJ10A11
-----------
RD40A21
RD30A21
RD20A21
--RE20A21
RE10A21
RF10A21
RG10A21
RH10A21
RJ10A21
RL20A21
RL10A21
RN20B21
RN10B21
---
------RE30A44
RE20A44
RE10A44
RF10A44
RG10A44
RH10A44
RJ10A44
-----------
RD40A42
RD30A42
RD20A42
--RE20A42
RE10A42
RF10A42
RG10A42
RH10A42
RJ10A42
RL20A42
RL10A42
RN20B42
RN10B42
RQ10B42
Compound
30”Hg - 14 psig
Pressure
0
0
2
2
4
6
10
20
30
40
60
100
160
270
600
-
4
9
18
18
36
60
100
200
300
400
600
1000
1650
2700
6000
60
60
60
100
150
150
200
400
450
500
2000
2000
5000
5000
9000
10
1
2
Rated proof pressure on RF10A71 is 150 psig and on RG10A71 is 300 psig.
3
316 SS transducer deadbands are approx. 50% greater than listed.
4
11
How to Select
How to Order
1. Select the adjustable operating range based
on desired actuation pressure.
2. Check that rated proof pressure is sufficient.
3. Read across and select the desired
P-Series switch unit with the proper enclosure.
4. Continue across and select a matching
transducer unit compatible with the fluid.
Factory assembled – Simply order the switch and transducer unit by
catalog number joined by a slash (/), e.g., PG36A/RV34A11.
Field assembled – Simply order the switch and transducer units separately
by individual catalog number, e.g., one PG36A and one RV34A11.
Options – Add appropriate suffix for desired option (see pages 34-35).
Important Note: The third digit of each of the catalog numbers must be
identical, e.g., PG 3 6A and RV 3 4A11.
Select P-Series switch unit and transducer unit below
PG Switch Unit
Transducer Unit
Limited Adjustable Deadband units
have an adjustable set point and use
a special snap-action switch that
varies the deadband
within the limits
listed below.
These guage pressure type transducers are
diaphragm/piston type transducers using an elastomer
allows high
sensitivity for low
pressures and
strength for high
pressures.
Open Frame
Specifications
Adjustable
Operating
Range
(psig)
Standard port connection is 1/4” NPT
Limited Adjustable Deadband
Adjustable
Deadband Open General Watertight
At
Frame Purpose Enclosure
Mid-Range
Proof
(psig) 1 Catalog Catalog Catalog
Pressure
From/To
(psig)
No.
No.
No.
Transducer Units
Air or
Gas 2
Air, Oil or
Gas
Water, Air,
Oil or Gas
Nylon & Aluminum
Brass &
Buna “N” & Buna “N” Buna “N”
Corrosive Fluids
All
316 SS
3
316 SS &
FKM 4
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Vacuum
0 - 30” Hg
50
1.8 - 5.0
PG36A PG30A
PG31B
---
RV34A11
RV34A21
---
RV34A32
50
2.8 - 6.0
PG26A PG20A
PG21B
---
RV24A11
RV24A21
---
RV24A32
0.7
0.8
1.8
2.0
2.1
4
8
15
22
35
65
190
200
300
PG36A
PG26A
PG36A
PG26A
PG16A
PG16A
PG16A
PG16A
PG16A
PG26A
PG16A
PG26A
PG16A
PG16A
PG30A
PG20A
PG30A
PG20A
PG10A
PG10A
PG10A
PG10A
PG10A
PG20A
PG10A
PG20A
PG10A
PG10A
PG31B
PG21B
PG31B
PG21B
PG11B
PG11B
PG11B
PG11B
PG11B
PG21B
PG11B
PG21B
PG11B
PG11B
RD30A71
RD20A71
--RE20A71
RE10A71
RF10A71
RG10A71
---------------
RD30A11
RD20A11
--RE20A11
RE10A11
RF10A11
RG10A11
RH10A11
RJ10A11
-----------
RD30A21
RD20A21
--RE20A21
RE10A21
RF10A21
RG10A21
RH10A21
RJ10A21
RL20A21
RL10A21
RN20B21
RN10B21
---
----RE30A44
RE20A44
RE10A44
RF10A44
RG10A44
RH10A44
RJ10A44
-----------
RD30A42
RD20A42
--RE20A42
RE10A42
RF10A42
RG10A42
RH10A42
RJ10A42
RL20A42
RL10A42
RN10B42
RN10B42
RQ10B42
Compound
30”Hg-14 psig
Pressure
0
2
2
4
6
10
20
30
40
60
100
160
270
600
-
9
18
18
36
60
100
200
300
400
600
1000
1650
2700
6000
60
60
100
150
150
200
400
450
500
2000
2000
5000
5000
9000
-
1.3
2.1
3.1
4.0
4.6
8
17
25
45
75
110
290
300
500
1
3
12
Values shown are nominal. 2 Rated proof pressure on RF10A71 is 150 psig and on RG10A71 is 300 psig.
316 SS transducer deadbands are approx. 50% greater than listed. 4 Transducers ending in 32 have 303 SS process connections, not 316 SS.
S-SERIES Pressure Switches
Switches for Pressure to 8000 psig, Vacuum, or Differential
with General Purpose, Watertight or
Explosion-Proof Enclosures
Features:
• Set point repeatability, +1% of operating range.
• All wiring terminals, adjustments and visual scales are
accessible from the front of the switch.
• Choice of general purpose, watertight or explosionproof enclosures.
• Choice of fixed or full-range adjustable deadband.
• Manual reset units available.
• Rugged and vibration resistant.
• Visual adjustment scales in psi and bars.
• External adjusting nuts.
• Separate electrical, pressure and adjusting
chambers.
• Wide selection of transducer wetted materials suitable
for air, water, oil or corrosive fluids.
ranges in field.
ASCO S-Series pressure switches consist of a switch
unit and a transducer unit. They can be ordered
separately for customer stocking and/or field assembly
or as a complete factory-assembled unit.
Switch
S-Series pressure switch units incorporate the unique
ASCO TRI-POINT alternating fulcrum balance plate to
control the operation of one or more electrical snapaction swtiches. The electrical snap-action switch
SA, SB, SC, SD and SE Series
1/8 HP, 125 VAC
1/4 HP, 250 VAC
SPDT
NO
C
NC
^ %
Transducer
Operation
14
Ambient: -4°F (-20°C) to 140°F (60°C)
Fluid:
-4°F (-20°C) to 180°F (82°C)
For FKM Diaphragm
-4°F (-20°C) to 250°F (121°C)
-50°F (-45°C) to 300°F (149°C)
4
123
Switches with Optional 316 Stainless Steel Enclosure
Every ASCO P-Series pressure switch is
available in a corrosion-resistant, stainless
steel enclosure. Typical applications
include:
• Offshore platforms
• Hydrocarbon processing plants
• Oil & gas fields
• Oil & gas transmission lines
• Chemical plants
• Breweries
• Paper pulp mills
• Salt spray locations
Stainless Steel Enclosure
ASCO Type 4X watertight enclosure is
designed to provide protection against
windblown dust, rain, sleet or external ice
formation. The switch and transducer unit
are available only as factory-assembled
units, and include a UL-approved 1/2”
NPT conduit hub.
Dimensions (inches)
ASCO P-Series switches with 316 SS
enclosure consist of two factory-assembled
components, the switch unit and the
transducer unit.
P-Series Pressure with Optional 316 SS Enclosure
4.9
4.5
4.0
How to Select (use tables on pages 10-12)
on desired actuation pressure.
2. Check that rated proof pressure is sufficient.
3. Read across and select the desired P-Series
switch unit with open frame construction.
4. To add a 316 SS enclosure, change the fourth
digit of the open frame catalog number from “6”
to “4”, e.g., PG3 6 A becomes PG3 4 A.
transducer unit compatible with the fluid.
5.35
1.7
1/4 OR
1/2 NPT
How to Order
Factory assembled only – Simply order the
switch and transducer unit by catalog number
joined by a slash (/), e.g., PG34A/RV34A32.
Options – Add appropriate suffix for desired
option (see pages 34-35).
.4
2.3
1.8
2.1
.27 DIA.
2 HOLES
FOR MOUNTING
4.3
1/2 NPT
CONDUIT
CONNECTION
NOTE: THIS DIMENSION WILL VARY FROM
5.0 MIN. TO 6.04 MAX. DEPENDING ON
TRANSDUCER SPECIFIED.
* MOUNTING BRACKET OPTIONAL
13
4
123
Enclosures
Class I locations are those in which flammable gases
are or may be present in the air in sufficient quantities
to produce explosive or ignitable mixtures. Class I locations are classified by group letter, which defines particular atmospheres. Division 1 locations are areas where
the hazardous concentration exists continuously, intermittently or periodically under normal operating conditions. Division 2 locations are those where the hazardous vapors are present only in case of accidental
rupture or breakdown of equipment.
ASCO TRI-POINT S-Series switches are available in
three standard enclosures. All of these enclosed units
are made in accordance with NEMA and UL standards.
accidental contact with the equipment. S-Series
general purpose switch units consist of a copper-free*
aluminum die-cast body with a formed copper-free*
aluminum cover; two 3/4” conduit hubs with one plug
are provided.
ASCO TRI-POINT explosion-proof enclosures with
letter B, C or D in the fifth position are listed for Class I,
Groups B, C, and D, Division 1. They are also suitable
for the less stringent Division 2 environment.
Watertight – Type 4. Watertight and dust-tight enclosures are intended for use indoors and outdoors to
protect the enclosed equipment against splashing or
water, and severe external condensation. S-Series
watertight switch units have a copper-free* aluminum
die-cast body and a formed copper-free* aluminum
cover with Buna “N” gaskets; two 3/4” conduit hubs
with one plug are provided.
Class II locations are those which are hazardous
because of the presence of combustible dust. All
ASCO TRI-POINT explosion-proof enclosures are
listed for Groups E, F, and G locations.
The switch body and cover are die-cast copper-free*
aluminum with a Buna “N” gasket. Two 3/4” conduit
hubs with one plug are provided.
Explosion-Proof – Types 7 and 9. Type 7 enclosures
are intended for use in locations defined by the National
Electrical Code as Class I. Type 9 enclosures are
intended for Class II locations.
Dimensions (inches)
S-Series Pressure
With Types TD - TV Transducers
With Types TA - TC Transducers
1/4 NPT VENT CONNECTION ON
DOUBLE CHAMBER TRANSDUCERS
3.5
ADDITIONAL SPACE REQUIRED
3.7
2.2
3.5
1.5
1.03
2.3
1.6
1.03
2.3
1.6
3/4 NPT FOR
CONDUIT CONN.
BOTH ENDS
3/4 NPT FOR
CONDUIT CONN.
BOTH ENDS
7.4
7.5
11/32 DIA. FOR
MOUNTING
(2PLACES)
1.0
1
11/32 DIA. FOR
MOUNTING
(2PLACES)
1.0
4.3
1
4.1
2.2
3.2
4.06
1.7
3.7
1/4 NPT
1/4 OR 1/2 NPT
2.9
1
7.0
ON TV SERIES ADD 7/16" TO THESE DIMENSIONS
3.2
7.0
* Less than 0.6% copper.
15
4
(to 8000 psig)
(see pages 34-35).
Important Note: The third digit of each of the catalog numbers
must be identical, e.g., SA 4 0D and TA 4 0A11.
ASCO S-Series switches consist of two components, the switch unit and the transducer unit.
How to Select
1. Select the adjustable
operating range based on
desired actuation pressure.
2. Check that proof
pressure is sufficient.
3. Read across and select the
desired S-Series switch unit
with the proper enclosure.
4. Continue across and select
a matching transducer unit
compatible with the fluid.
Select S-Series pressure switch
SA Switch Unit
How to Order
Factory assembled – Simply
order the switch and transducer
unit by catalog number joined
by a slash (/),
e.g., SA40D/TA40A11.
Field assembled – Simply
units separately by individual
catalog number, e.g., one
SA40D and one TA40A11.
Proof
Pressure
(psig)
0 - 12” W.C.
0 - 27” W.C.
0 - 65” W.C.
15 - 140” W.C.
15 - 250” W.C.
25 - 400” W.C.
0.4 - 4.5
0.7 - 9.0
0.8 - 9.0
1.0 - 18
1.0 - 18
1.5 - 36
2 - 60
5 - 60
3 - 100
5 - 120
5 - 200
6 - 200
13 - 300
15 - 400
30 - 600
50 - 1000
75 - 1500
200 - 3500
500 - 8000
25
25
25
40
40
40
100
100
150
100
150
150
150
3000
200
3000
3000
400
600
600
900
1500
2300
5000
9000
SC Switch Unit
units consist of two separate snap-action
switches, each with an independently
adjustable set point and non-adjustable
reset point. The difference between the
set and reset points of each switch is the
deadband listed below; the minimum
difference between the set points of the
two switches is the separation.
Adjustable Deadband
Standard connection is 1/4” NPT; (Optional 1/2” NPT
add suffix “B” to catalog numbers TD thru TQ)
Transducer Unit
Explosion Proof
Fixed Deadband or Manual Reset
Adjustable
Deadband
Separation
Maximum
Full Scale
Maximum
Full Scale
Minimum At
Mid-Range Catalog
(psig) 1
No.
Catalog
No.
Catalog
No.
Fixed
Deadband
At
Mid-Range
(psig) 1
SA40D
SA30D
SA20D
SA20D
SA10D
SA10D
SA40D
SA30D
SA40D
SA20D
SA30D
SA20D
SA10D
SA30D
SA10D
SA20D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA41D
SA31D
SA21D
SA21D
SA11D
SA11D
SA41D
SA31D
SA41D
SA21D
SA31D
SA21D
SA11D
SA31D
SA11D
SA21D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA42D
SA32D
SA22D
SA22D
SA12D
SA12D
SA42D
SA32D
SA42D
SA22D
SA32D
SA22D
SA12D
SA32D
SA12D
SA22D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
1.0” W.C.
1.2” W.C.
1.4” W.C.
3” W.C.
6” W.C.
8” W.C.
0.3
0.3
0.8
0.4
1.0
0.9
1.5
4.0
2.5
5.0
6.0
5.0
8
10
15
30
45
125
275
1.5” W.C.
2.0” W.C.
2.5” W.C.
6” W.C.
10” W.C.
15” W.C.
0.4
0.6
1.4
1.1
1.6
2.2
3.6
6.0
6.0
10
14
12
18
24
36
75
115
225
450
General Watertight ExplosionPurpose Enclosure
Proof
1
Series TD-TQ
These guage pressure type transducers provide
for one pressure connection in the bottom of the
transducer. They are diaphragm/piston type
transducers using an elastomer in contact with the
fluid, backed by a piston cylinder. This allows high
sensitivity for low pressures and strength for high
pressures.
Catalog
No.
Catalog
No.
Catalog
No.
Fixed
Deadband
At
Mid-Range
(psig) 1
SB40D
SB30D
SB20D
SB20D
SB10D
SB10D
SB40D
SB30D
SB40D
SB20D
SB30D
SB20D
SB10D
SB30D
SB10D
SB20D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB41D
SB31D
SB21D
SB21D
SB11D
SB11D
SB41D
SB31D
SB41D
SB21D
SB31D
SB21D
SB11D
SB31D
SB11D
SB21D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB42D
SB32D
SB22D
SB22D
SB12D
SB12D
SB42D
SB32D
SB42D
SB22D
SB32D
SB22D
SB12D
SB32D
SB12D
SB22D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
1.2” W.C.
1.4” W.C.
1.6” W.C.
4.0” W.C.
7.0” W.C.
13.0” W.C.
0.4
0.4
1.0
0.6
1.2
1.4
2.2
5.5
3.5
7.0
8.5
7.0
10
14
20
40
60
150
300
Proof
16
Series TA-TC
General Purpose
Specifications
Adjustable
Operating
Range
(psig)
SB Switch Unit: Single-Stage Fixed
Deadband units have an adjustable set point
and a non-adjustable automatic reset point.
SD Switch Unit: Manual reset on decreasing
pressure units operate automatically on
increasing pressure and must be reset
manually on decreasing pressure.
(To order, change second digit to letter “D”,
e.g., S B 40D becomes S D 40D).
SE Switch Unit: Manual reset on increasing
decreasing pressure and must be reset
manually on increasing pressure.
(To order, change second digit to letter “E”,
e.g., S B 40D becomes S E 40D).
SA, SB, SC, SD and SE unit below
SB, SD or SE Switch Unit
units allow independent adjustment of
the set and reset
points over the full
operating range of
the switch. The
minimum difference
between set and
reset points is the
deadband listed
below; the maximum
difference is the full
range of the switch .
123
Minimum At
Mid-Range
(psig) 1
2.4” W.C.
2.7” W.C.
6.5” W.C.
14” W.C.
25” W.C.
40” W.C.
0.7
0.9
1.6
1.8
1.8
3.6
6
8
10
12
20
20
30
40
60
100
150
350
800
Transducer Units
Air, Oil
or Gas
Water, Air
Oil or Gas
Corrosive Fluids
General
Purpose
Watertight
Enclosure
ExplosionProof
Aluminum &
Buna “N”
Brass &
Buna “N”
All
316 SS
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
SC40D
SC30D
SC20D
SC20D
SC10D
SC10D
SC40D
SC30D
SC40D
SC20D
SC30D
SC20D
SC10D
SC30D
SC10D
SC20D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC41D
SC31D
SC21D
SC21D
SC11D
SC11D
SC41D
SC31D
SC41D
SC21D
SC31D
SC21D
SC11D
SC31D
SC11D
SC21D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC42D
SC32D
SC22D
SC22D
SC12D
SC12D
SC42D
SC32D
SC42D
SC22D
SC32D
SC22D
SC12D
SC32D
SC12D
SC22D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
TA40A11
TA30A11
TA20A11
TB20A11
TB10A11
TC10A11
TD40A11
TD30A11
--TD20A11
--TE20A11
TE10A11
--TE10A11
----TG10A11
TH10A11
TJ10A11
-----------
------------TD40A21
TD30A21
--TD20A21
--TE20A21
TE10A21
--TF10A21
----TG10A21
TH10A21
TJ10A21
TK10A21
TL10A21
TM10A21
TN10B21
---
----------------TE40A44
--TE30A44
TE20A44
TE10A44
--TF10A44
----TG10A44
TH10A44
TJ10A44
-----------
TA40A32
TA30A32
TA20A32
TB20A32
TB10A32
TC10A32
TD40A42
TD30A42
--TD20A42
--TE20A42
TE10A42
TG33A42
TF10A42
TG23A42
TG13A42
TG10A42
TH10A42
TJ10A42
TK10A42
TL10A42
TM10A42
TN10B42
TQ10B42
2
316 SS &
Viton 3
2
316 SS transducers increase deadband by 50%.
3
17
4
(to 8000 psig)
(see pages 34-35).
Important Note: The third digit of each of the catalog numbers
must be identical, e.g., SA 4 0D and TA 4 0A11.
How to Select
2. Check that proof
SA Switch Unit
How to Order
by a slash (/),
Proof
Pressure
(psig)
0 - 12” W.C.
0 - 27” W.C.
0 - 65” W.C.
15 - 140” W.C.
15 - 250” W.C.
25 - 400” W.C.
0.4 - 4.5
0.7 - 9.0
0.8 - 9.0
1.0 - 18
1.0 - 18
1.5 - 36
2 - 60
5 - 60
3 - 100
5 - 120
5 - 200
6 - 200
13 - 300
15 - 400
30 - 600
50 - 1000
75 - 1500
200 - 3500
500 - 8000
25
25
25
40
40
40
100
100
150
100
150
150
150
3000
200
3000
3000
400
600
600
900
1500
2300
5000
9000
SC Switch Unit
Adjustable Deadband
Standard connection is 1/4” NPT; (Optional 1/2” NPT
add suffix “B” to catalog numbers TD thru TQ)
Transducer Unit
Explosion Proof
Adjustable
Deadband
Separation
Maximum
Full Scale
Maximum
Full Scale
Minimum At
Mid-Range Catalog
(psig) 1
No.
Catalog
No.
Catalog
No.
Fixed
Deadband
At
Mid-Range
(psig) 1
SA40D
SA30D
SA20D
SA20D
SA10D
SA10D
SA40D
SA30D
SA40D
SA20D
SA30D
SA20D
SA10D
SA30D
SA10D
SA20D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA41D
SA31D
SA21D
SA21D
SA11D
SA11D
SA41D
SA31D
SA41D
SA21D
SA31D
SA21D
SA11D
SA31D
SA11D
SA21D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA42D
SA32D
SA22D
SA22D
SA12D
SA12D
SA42D
SA32D
SA42D
SA22D
SA32D
SA22D
SA12D
SA32D
SA12D
SA22D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
1.0” W.C.
1.2” W.C.
1.4” W.C.
3” W.C.
6” W.C.
8” W.C.
0.3
0.3
0.8
0.4
1.0
0.9
1.5
4.0
2.5
5.0
6.0
5.0
8
10
15
30
45
125
275
1.5” W.C.
2.0” W.C.
2.5” W.C.
6” W.C.
10” W.C.
15” W.C.
0.4
0.6
1.4
1.1
1.6
2.2
3.6
6.0
6.0
10
14
12
18
24
36
75
115
225
450
Proof
1
Series TD-TQ
transducer. They are diaphragm/piston type
transducers using an elastomer in contact with the
fluid, backed by a piston cylinder. This allows high
sensitivity for low pressures and strength for high
pressures.
Catalog
No.
Catalog
No.
Catalog
No.
Fixed
Deadband
At
Mid-Range
(psig) 1
SB40D
SB30D
SB20D
SB20D
SB10D
SB10D
SB40D
SB30D
SB40D
SB20D
SB30D
SB20D
SB10D
SB30D
SB10D
SB20D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB41D
SB31D
SB21D
SB21D
SB11D
SB11D
SB41D
SB31D
SB41D
SB21D
SB31D
SB21D
SB11D
SB31D
SB11D
SB21D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB42D
SB32D
SB22D
SB22D
SB12D
SB12D
SB42D
SB32D
SB42D
SB22D
SB32D
SB22D
SB12D
SB32D
SB12D
SB22D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
1.2” W.C.
1.4” W.C.
1.6” W.C.
4.0” W.C.
7.0” W.C.
13.0” W.C.
0.4
0.4
1.0
0.6
1.2
1.4
2.2
5.5
3.5
7.0
8.5
7.0
10
14
20
40
60
150
300
Proof
16
Series TA-TC
General Purpose
Specifications
Adjustable
Operating
Range
(psig)
increasing pressure and must be reset
the set and reset
points over the full
operating range of
the switch. The
minimum difference
between set and
reset points is the
deadband listed
below; the maximum
123
Minimum At
Mid-Range
(psig) 1
2.4” W.C.
2.7” W.C.
6.5” W.C.
14” W.C.
25” W.C.
40” W.C.
0.7
0.9
1.6
1.8
1.8
3.6
6
8
10
12
20
20
30
40
60
100
150
350
800
Transducer Units
Air, Oil
or Gas
Water, Air
Oil or Gas
Corrosive Fluids
General
Purpose
Watertight
Enclosure
ExplosionProof
Aluminum &
Buna “N”
Brass &
Buna “N”
All
316 SS
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
SC40D
SC30D
SC20D
SC20D
SC10D
SC10D
SC40D
SC30D
SC40D
SC20D
SC30D
SC20D
SC10D
SC30D
SC10D
SC20D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC41D
SC31D
SC21D
SC21D
SC11D
SC11D
SC41D
SC31D
SC41D
SC21D
SC31D
SC21D
SC11D
SC31D
SC11D
SC21D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC42D
SC32D
SC22D
SC22D
SC12D
SC12D
SC42D
SC32D
SC42D
SC22D
SC32D
SC22D
SC12D
SC32D
SC12D
SC22D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
TA40A11
TA30A11
TA20A11
TB20A11
TB10A11
TC10A11
TD40A11
TD30A11
--TD20A11
--TE20A11
TE10A11
--TE10A11
----TG10A11
TH10A11
TJ10A11
-----------
------------TD40A21
TD30A21
--TD20A21
--TE20A21
TE10A21
--TF10A21
----TG10A21
TH10A21
TJ10A21
TK10A21
TL10A21
TM10A21
TN10B21
---
----------------TE40A44
--TE30A44
TE20A44
TE10A44
--TF10A44
----TG10A44
TH10A44
TJ10A44
-----------
TA40A32
TA30A32
TA20A32
TB20A32
TB10A32
TC10A32
TD40A42
TD30A42
--TD20A42
--TE20A42
TE10A42
TG33A42
TF10A42
TG23A42
TG13A42
TG10A42
TH10A42
TJ10A42
TK10A42
TL10A42
TM10A42
TN10B42
TQ10B42
2
316 SS &
FKM 3
2
3
17
4
S-SERIES Vacuum, Differential Switches
(see pages 34-35).
numbers must be identical, e.g., SA 3 0D and TA 3 4A11.
How to Select
desired actuation point.
2. Check that proof
SA Switch Unit
by a slash (/),
the set and reset points over the full
operating range of the switch. The
minimum difference
between set and
reset points is the
deadband listed
below; the maximum
How to Order
Deadband units have an adjustable set
point and a non-adjustable automatic
reset point.
SD Switch Unit: Manual reset on decreasing pressure units operate automatically
on increasing pressure and must be reset
SE Switch Unit: Manual reset on increasing pressure units operate automatically on
SC Switch Unit
units consist of two separate snap-action switches,
each with an independently adjustable set point and
non-adjustable reset point. The
difference between the set and
reset points of each switch is the
deadband listed below; the
minimum difference between the
set points of the two switches is
the separation.
Specifications
Adjustable Deadband
Proof
Pressure
(psig)
50
50
15
15
25
25
25
15
15
15
25
25
25
Catalog
No.
Catalog
No.
Catalog
No.
Fixed
Deadband
At
Mid-Range
(In W.C.) 1
2 - 28” Hg
3 - 57” Hg
2 - 27
3 - 65
6 - 125
10 - 235
15 - 375
SA30D
SA20D
SA30D
SA20D
SA20D
SA10D
SA10D
SA31D
SA21D
SA31D
SA21D
SA21D
SA11D
SA11D
SA32D
SA22D
SA32D
SA22D
SA22D
SA12D
SA12D
2
2
3
6
10
15
SA40D
SA30D
SA20D
SA20D
SA10D
SA10D
SA41D
SA31D
SA21D
SA21D
SA11D
SA11D
SA42D
SA32D
SA22D
SA22D
SA12D
SA12D
General
ExplosionPurpose Watertight
Proof
The vacuum transducer has a
spring which preloads the switch
unit when no vacuum is applied.
On application, the vacuum acts
on a piston area to overcome the
spring to operate the switch unit.
Vacuum Transducer
The differential pressure transducer has two pressure
sources acting on the piston area in
opposite directions. The force
output is proportional to the
difference between these
pressures, allowing the
differential pressure to be
contolled by adjustment
of the switch unit.
Differential Pressure Transducer
Transducer Units
Separation
Adjustable
Deadband
At
Mid-Range
(In W.C.) 1
From/To
Explosion Proof
General Purpose
Adjustable
Operating
Range
(In W.C.)
123
General
ExplosionPurpose Watertight
Proof
Maximum
Fixed
Full Scale
Deadband
At
Minimum At
Mid-Range Mid-Range
(In W.C.) 1
(In W.C.) 1
Air or
Gas
Water, Air
Oil or Gas
Corrosive
Fluids
General
Purpose
ExplosionProof
Aluminum &
Buna “N”
Brass &
Buna “N”
303 SS &
Watertight
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
FKM
Catalog
No.
Catalog
No.
Catalog
No.
1.2” Hg
1.7” Hg
1.2
1.4
3.0
6.0
8.0
SB30D
SB20D
SB30D
SB20D
SB20D
SB10D
SB10D
SB31D
SB21D
SB31D
SB21D
SB21D
SB11D
SB11D
SB32D
SB22D
SB32D
SB22D
SB22D
SB12D
SB12D
1.7” Hg
2.0” Hg
1.7
2.0
4.0
7.0
13.0
3” Hg
8” Hg
2.7
6.5
14.0
25.0
40.0
SC30D
SC20D
SC30D
SC20D
SC20D
SC10D
SC10D
SC31D
SC21D
SC31D
SC21D
SC21D
SC11D
SC11D
SC32D
SC22D
SC32D
SC22D
SC22D
SC12D
SC12D
TV34A11
TV24A11
TA31A11
TA21A11
TB21A11
TB11A11
TC11A11
TV34A21
TV24A21
-----------
TV34A32
TV24A32
-----------
1.0
1.2
1.4
3.0
6.0
8.0
SB40D
SB30D
SB20D
SB20D
SB10D
SB10D
SB41D
SB31D
SB21D
SB21D
SB11D
SB11D
SB42D
SB32D
SB22D
SB22D
SB12D
SB12D
1.4
1.7
2.0
4.0
7.0
13.0
2.4
2.7
6.5
14.0
25.0
40.0
SC40D
SC30D
SC20D
SC20D
SC10D
SC10D
SC41D
SC31D
SC21D
SC21D
SC11D
SC11D
SC42D
SC32D
SC22D
SC22D
SC12D
SC12D
TA41A11
TA31A11
TA21A11
TB21A11
TB11A11
TC11A11
-------------
-------------
Vacuum
0
15 PSI
0
0
15
15
25
-
30” Hg
30” Hg
27
65
140
250
400
Differential
0
0
0
15
15
25
-
12
27
65
140
250
400
-
12
27
65
125
235
375
1
18
19
S-SERIES Combustion Switches
Pressure Switches Designed to UL or FM Requirements
for Combustion Service
Features:
Set point repeatability, +1% of operating range.
UL Listed in the gas and oil equipment list.
FM Approved as “pressure supervisory switches.”
Externally visible pressure setting scales.
External adjusting nuts.
Choice of fixed or full-range adjustable deadbands.
Choice of single or two-stage units.
Mounts in any position.
Rugged and vibration resistant.
Separate electrical, pressure and adjusting
chambers.
ranges in field.
• Withstands high surge pressures.
•
•
•
•
•
•
•
•
•
•
ASCO S-Series combustion switches consist of a
switch unit and a transducer unit. They can be ordered
Switch
S-Series combustion switch units incorporate the
unique ASCO TRI-POINT alternating fulcrum balance
plate to control the operation of one or more electrical
snap-action swtiches. The electrical snap-action switch
Transducer
SA, SD and SE Series 1
5 Amp Res., 125, 250 VAC
1/8 HP, 125 VAC
1/4 HP, 250 VAC
SB and SC Series
5 Amp Res., 125, 250 VAC
1/4 HP, 125 VAC
1/2 HP, 250 VAC
.4 Amp Res., 125, VDC
1
Operation
Dimensions (See page 15)
20
SPDT
NO
C
NC
^#
SD and SE Series not FM Approved.
Ambient: -4°F (-20°C) to 140°F (60°C)
Fluid:
-4°F (-20°C) to 180°F (82°C)
For FKM Diaphragm
-4°F (-20°C) to 250°F (121°C)
-50°F (-45°C) to 300°F (149°C)
4
UL Requirements
Underwriters’ Laboratories, Inc.’s Standard UL 353
defines construction and performance requirements for
limit controls.
Switch
S-Series combustion switch units when mated to the
pressure transducers described below form pressure
switches in accordance with UL requirements.
Transducers
Fuel Gas – UL requires a pressure transducer with a
secondary chamber. This chamber allows the gas to
be vented to a safe location in the event of primary
sensing element rupture. The “double chamber” with
vent pressure transducers meet this requirement.
Fuel Oil – UL requirements for fuel oil applications
waive the double chamber requirement, providing the
sensing element is made of Type 316 or 321 SS.
S-Series type 316 SS pressure transducers are
designed to meet this requirement.
General Service – Pressure transducers for water,
steam and air service may be of the single chamber
design.
Enclosures
are provided.
123
to produce explosive or ignitable mixtures. Class I
locations are classified by group letter, which defines
particular atmospheres. Division 1 locations are areas
where the hazardous concentration exists continuously,
intermittently or periodically under normal operating
conditions. Division 2 locations are those where the
hazardous vapors are present only in case of accidental rupture or breakdown of equipment.
FM Requirements
Fuel Gas and Fuel Oil – FM requires that fuel gas
and fuel oil pressure supervisory switches shall have a
visible external means of determining switch position.
No specific constructions are required for the pressure
transducer. Switch units with visual position indication
(suffix “V”) in conjunction with single chamber pressure
transducers will meet these requirements.
General Service – Standard switch units with an
adjusting nut cover, when mated to single chamber
transducers, meet FM requirements for general
applications such as “airflow interlocking switches”.
Enclosures
General Purpose – Designed to Type 1 specifications
for indoor applications. Die casting is copper-free*
aluminum; covers are polycarbonate. Two 3/4” conduit
Watertight – Designed to Types 4 specifications for
indoor/outdoor use. Die casting is copper-free*
aluminum. Cover are polycarbonate and gaskets are
neoprene. Two 3/4” conduit hubs with one plug are
are intended for use in locations defined by the National provided.
21
(see pages 34-35).
How to Select
2. Check that proof
SA Switch Unit
How to Order
by a slash (/),
Specifications
Adjustable
Operating
Range
(psig)
units allow independent
adjustment of the set
and reset points over
the full operating range
of the switch. The
minimum difference
listed below; the
maximum difference
the switch .
SC Switch Unit
reset point.
SE Switch Unit: Manual reset on increasing pressure units operate automatically
on decreasing pressure and must be reset
Adjustable
Deadband
Maximum
Full Scale
Catalog
No.
Catalog
No.
Catalog
No.
2.0” W.C.
2.5” W.C.
6.0” W.C.
10.0” W.C.
15.0” W.C.
1.4
4.6
4.0
3.3
5.4
5.0
9.0
SA30D
SA20D
SA20D
SA10D
SA10D
SA40D
SA30D
SA30D
SA20D
SA10D
SA20D
SA10D
SA31D
SA21D
SA21D
SA11D
SA11D
SA41D
SA31D
SA31D
SA21D
SA11D
SA21D
SA11D
SA32D
SA22D
SA22D
SA12D
SA12D
SA42D
SA32D
SA32D
SA22D
SA12D
SA22D
SA12D
1.5” W.C.
2.0” W.C.
2.5” W.C.
6.0” W.C.
10.0” W.C.
1 5.0” W.C.
0.4
0.6
1.1
2.2
3.6
6.0
SA40DV
SA30DV
SA20DV
SA20DV
SA10DV
SA10DV
SA40DV
SA30DV
SA20DV
SA20DV
SA10DV
SA10DV
SA41DV
SA31DV
SA21DV
SA21DV
SA11DV
SA11DV
SA41DV
SA31DV
SA21DV
SA21DV
SA11DV
SA11DV
-------------------------
Minimum At
Mid-Range
(psig) 1
15
15
25
25
25
150
150
200
150
150
200
200
25
25
25
40
40
40
100
100
100
150
150
200
Transducer Unit
-
27” W.C.
65” W.C.
140” W.C.
250” W.C.
400” W.C.
9.0
18
30
36
60
60
100
transducer. They are diaphragm/piston type transducers using an elastomer in contact with the fluid,
backed by a piston cylinder. UL requires a double
chamber transducer for fuel gas service and single
chamber 316 SS transducer for fuel oil service.
2
Transducer Units
Proof
Maximum
Full Scale
Catalog
No.
Catalog
No.
Catalog
No.
Fixed
Deadband
At
Mid-Range
(psig) 1
1.2” W.C.
1.4” W.C.
3.0” W.C.
6.0” W.C.
8.0” W.C.
0.9
0.6
1.5
1.4
2.3
2.0
3.7
SB30D
SB20D
SB20D
SB10D
SB10D
SB40D
SB30D
SB30D
SB20D
SB10D
SB20D
SB10D
SB31D
SB21D
SB21D
SB11D
SB11D
SB41D
SB31D
SB31D
SB21D
SB11D
SB21D
SB11D
SB32D
SB22D
SB22D
SB12D
SB12D
SB42D
SB32D
SB32D
SB22D
SB12D
SB22D
SB12D
1.7” W.C.
2.0” W.C.
4.0” W.C.
7.0” W.C.
13.0” W.C.
1.5
1.0
2.0
2.0
3.5
3.0
5.0
2.7” W.C.
6.5” W.C.
14.0” W.C.
25.0” W.C.
40.0” W.C.
1.6
1.8
3.0
3.6
6.0
6.0
10.0
SC30D
SC20D
SC20D
SC10D
SC10D
SC40D
SC30D
SC30D
SC20D
SC10D
SC20D
SC10D
SC31D
SC21D
SC21D
SC11D
SC11D
SC41D
SC31D
SC31D
SC21D
SC11D
SC21D
SC11D
SC32D
SC22D
SC22D
SC12D
SC12D
SC42D
SC32D
SC32D
SC22D
SC12D
SC22D
SC12D
TA31A11
TA21A11
TB21A11
TB11A11
TC11A11
---------------
1.0” W.C.
1.2” W.C.
1.4” W.C.
3.0” W.C.
6.0” W.C.
8.0” W.C.
0.3
0.3
0.4
0.9
1.5
2.5
SB40DV
SB30DV
SB20DV
SB20DV
SB10DV
SB10DV
SB40DV
SB30DV
SB20DV
SB20DV
SB10DV
SB10DV
SB41DV
SB31DV
SB21DV
SB21DV
SB11DV
SB11DV
SB41DV
SB31DV
SB21DV
SB21DV
SB11DV
SB11DV
-------------------------
1.4” W.C.
1.7” W.C.
2.0” W.C.
4.0” W.C.
7.0” W.C.
13.0” W.C.
0.5
0.5
0.5
1.2
2.1
3.5
2.4” W.C.
2.7” W.C.
6.5” W.C.
14.0” W.C.
25.0” W.C.
40.0” W.C.
0.7
0.9
1.8
3.6
6.0
10.0
SC40DV
SC30DV
SC20DV
SC20DV
SC10DV
SC10DV
SC40DV
SC30DV
SC20DV
SC20DV
SC10DV
SC10DV
SC41DV
SC31DV
SC21DV
SC21DV
SC11DV
SC11DV
SC41DV
SC31DV
SC21DV
SC21DV
SC11DV
SC11DV
-------------------------
TA40A11F
TA30A11F
TA20A11F
TB20A11
TB10A11
TC10A11
TD40A11
TD30A11
TD20A11
TE20A11
TE10A11
TF10A11
Proof
Minimum At
Mid-Range
(psig) 1
General
Purpose
Watertight
Enclosure
ExplosionProof
Aluminum &
Buna “N”
Brass &
Buna “N”
All
316 SS
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Fuel Gas
FM Approved
2
2
2
15
15
25
0.4
0.8
1.0
1.5
2.0
3.0
1
22
-
12” W.C.
27” W.C.
65” W.C.
140” W.C.
250” W.C.
400” W.C.
4.5
9.0
18
36
60
100
FM Approved
Separation
Fixed
Deadband
At
Mid-Range
(psig.) 1
Proof
Pressure
(psig)
UL Listed
FM General Purpose
UL General Purpose
Adjustable Deadband
UL Listed
0
0
15
15
25
0.8
1.0
1.5
1.5
2.0
2.0
3.0
123
4
--------------TF32A21
----TF22A21
TF12A21
3
316 SS &
Viton 4
Catalog
No.
Fuel Oil
-------------------------
----------TE40A44
TE30A44
--TE20A44
TE10A44
--TF10A44
Fuel Gas and Fuel Oil
2
Manual reset units not available for FM.
3
4
------------TD40A21
TD30A21
TD20A21
TE20A21
TE10A21
TF10A21
-------------------------
TA40A32F
TA30A32F
TA20A32F
TB20A32
TB10A32
TC10A32
TD40A42
TD30A42
TD20A42
TE20A42
TE10A42
TF10A42
23
(see pages 34-35).
How to Select
2. Check that proof
SA Switch Unit
How to Order
by a slash (/),
Specifications
Adjustable
Operating
Range
(psig)
units allow independent
adjustment of the set
and reset points over
the full operating range
of the switch. The
minimum difference
listed below; the
maximum difference
the switch .
SC Switch Unit
reset point.
SE Switch Unit: Manual reset on increasing pressure units operate automatically
on decreasing pressure and must be reset
Adjustable
Deadband
Maximum
Full Scale
Catalog
No.
Catalog
No.
Catalog
No.
2.0” W.C.
2.5” W.C.
6.0” W.C.
10.0” W.C.
15.0” W.C.
1.4
4.6
4.0
3.3
5.4
5.0
9.0
SA30D
SA20D
SA20D
SA10D
SA10D
SA40D
SA30D
SA30D
SA20D
SA10D
SA20D
SA10D
SA31D
SA21D
SA21D
SA11D
SA11D
SA41D
SA31D
SA31D
SA21D
SA11D
SA21D
SA11D
SA32D
SA22D
SA22D
SA12D
SA12D
SA42D
SA32D
SA32D
SA22D
SA12D
SA22D
SA12D
1.5” W.C.
2.0” W.C.
2.5” W.C.
6.0” W.C.
10.0” W.C.
1 5.0” W.C.
0.4
0.6
1.1
2.2
3.6
6.0
SA40DV
SA30DV
SA20DV
SA20DV
SA10DV
SA10DV
SA40DV
SA30DV
SA20DV
SA20DV
SA10DV
SA10DV
SA41DV
SA31DV
SA21DV
SA21DV
SA11DV
SA11DV
SA41DV
SA31DV
SA21DV
SA21DV
SA11DV
SA11DV
-------------------------
Minimum At
Mid-Range
(psig) 1
15
15
25
25
25
150
150
200
150
150
200
200
25
25
25
40
40
40
100
100
100
150
150
200
Transducer Unit
-
27” W.C.
65” W.C.
140” W.C.
250” W.C.
400” W.C.
9.0
18
30
36
60
60
100
transducer. They are diaphragm/piston type transducers using an elastomer in contact with the fluid,
backed by a piston cylinder. UL requires a double
chamber transducer for fuel gas service and single
chamber 316 SS transducer for fuel oil service.
2
Transducer Units
Proof
Maximum
Full Scale
Catalog
No.
Catalog
No.
Catalog
No.
Fixed
Deadband
At
Mid-Range
(psig) 1
1.2” W.C.
1.4” W.C.
3.0” W.C.
6.0” W.C.
8.0” W.C.
0.9
0.6
1.5
1.4
2.3
2.0
3.7
SB30D
SB20D
SB20D
SB10D
SB10D
SB40D
SB30D
SB30D
SB20D
SB10D
SB20D
SB10D
SB31D
SB21D
SB21D
SB11D
SB11D
SB41D
SB31D
SB31D
SB21D
SB11D
SB21D
SB11D
SB32D
SB22D
SB22D
SB12D
SB12D
SB42D
SB32D
SB32D
SB22D
SB12D
SB22D
SB12D
1.7” W.C.
2.0” W.C.
4.0” W.C.
7.0” W.C.
13.0” W.C.
1.5
1.0
2.0
2.0
3.5
3.0
5.0
2.7” W.C.
6.5” W.C.
14.0” W.C.
25.0” W.C.
40.0” W.C.
1.6
1.8
3.0
3.6
6.0
6.0
10.0
SC30D
SC20D
SC20D
SC10D
SC10D
SC40D
SC30D
SC30D
SC20D
SC10D
SC20D
SC10D
SC31D
SC21D
SC21D
SC11D
SC11D
SC41D
SC31D
SC31D
SC21D
SC11D
SC21D
SC11D
SC32D
SC22D
SC22D
SC12D
SC12D
SC42D
SC32D
SC32D
SC22D
SC12D
SC22D
SC12D
TA31A11
TA21A11
TB21A11
TB11A11
TC11A11
---------------
1.0” W.C.
1.2” W.C.
1.4” W.C.
3.0” W.C.
6.0” W.C.
8.0” W.C.
0.3
0.3
0.4
0.9
1.5
2.5
SB40DV
SB30DV
SB20DV
SB20DV
SB10DV
SB10DV
SB40DV
SB30DV
SB20DV
SB20DV
SB10DV
SB10DV
SB41DV
SB31DV
SB21DV
SB21DV
SB11DV
SB11DV
SB41DV
SB31DV
SB21DV
SB21DV
SB11DV
SB11DV
-------------------------
1.4” W.C.
1.7” W.C.
2.0” W.C.
4.0” W.C.
7.0” W.C.
13.0” W.C.
0.5
0.5
0.5
1.2
2.1
3.5
2.4” W.C.
2.7” W.C.
6.5” W.C.
14.0” W.C.
25.0” W.C.
40.0” W.C.
0.7
0.9
1.8
3.6
6.0
10.0
SC40DV
SC30DV
SC20DV
SC20DV
SC10DV
SC10DV
SC40DV
SC30DV
SC20DV
SC20DV
SC10DV
SC10DV
SC41DV
SC31DV
SC21DV
SC21DV
SC11DV
SC11DV
SC41DV
SC31DV
SC21DV
SC21DV
SC11DV
SC11DV
-------------------------
TA40A11F
TA30A11F
TA20A11F
TB20A11
TB10A11
TC10A11
TD40A11
TD30A11
TD20A11
TE20A11
TE10A11
TF10A11
Proof
Minimum At
Mid-Range
(psig) 1
General
Purpose
Watertight
Enclosure
ExplosionProof
Aluminum &
Buna “N”
Brass &
Buna “N”
All
316 SS
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Fuel Gas
FM Approved
2
2
2
15
15
25
0.4
0.8
1.0
1.5
2.0
3.0
1
22
-
12” W.C.
27” W.C.
65” W.C.
140” W.C.
250” W.C.
400” W.C.
4.5
9.0
18
36
60
100
FM Approved
Separation
Fixed
Deadband
At
Mid-Range
(psig.) 1
Proof
Pressure
(psig)
UL Listed
FM General Purpose
UL General Purpose
Adjustable Deadband
UL Listed
0
0
15
15
25
0.8
1.0
1.5
1.5
2.0
2.0
3.0
123
4
--------------TF32A21
----TF22A21
TF12A21
3
316 SS &
FKM 4
Catalog
No.
Fuel Oil
-------------------------
----------TE40A44
TE30A44
--TE20A44
TE10A44
--TF10A44
Fuel Gas and Fuel Oil
2
Manual reset units not available for FM.
3
4
------------TD40A21
TD30A21
TD20A21
TE20A21
TE10A21
TF10A21
-------------------------
TA40A32F
TA30A32F
TA20A32F
TB20A32
TB10A32
TC10A32
TD40A42
TD30A42
TD20A42
TE20A42
TE10A42
TF10A42
23
P-SERIES Temperature Switches
Switches for -60 through 510°F with Adjustable Set Points
and Fixed or Adjustable Deadband
Features:
• Set point repeatability, +1°F (1/2°C).
• Choice of open frame type, general purpose, or
watertight enclosure.
• Choice of fixed, limited adjustable or full-range
adjustable deadband.
• Compact size.
• Visual adjustment scales in °F and °C.
• Direct mount (local) or capillary and bulb (remote)
sensors.
• Temperature transducers available with copper or
316 SS wetted material.
• Withstands high overrange temperatures.
ranges in field.
ASCO P-Series temperature switches consist of an
open frame or enclosure protected switch unit and a
transducer unit. They can be ordered separately for
customer stocking and/or field assembly or as a
complete factory-assembled unit.
Switch
P-Series temperature switch units incorporate the
Transducer
The temperature transducer unit uses a vapor pressure
principle where the internal pressure within the unit is
generated by the vapor pressure of a chemical within a
sealed system. Temperature transducers are available
in two constructions, a direct mount or capillary and
bulb construction. The direct mount unit includes a 1/2”
NPT connection for direct mounting to the process. The
capillary and bulb construction allows remote mounting
from the process. The transducer unit (like the switch
unit) is a fully-tested, self-contained subassembly.
24
PA, PB, PC 1 Series
1/8 HP, 125 VAC
1/4 HP, 250 VAC
PG 1 Series
1/8 HP, 125 VAC
1/4 HP, 250 VAC
1
SPDT
NO
C
NC
^%
PC and PG Series not UL listed or CSA approved, PC Series
rated 10 Amp Res., 125/250 VAC; 1/3 HP 125/250 VAC.
Ambient: -4°F (-20°C) to 122°F (50°C)
Fluid:
See specification table on page 26
for rated overrange temperature.
Operation
Temperature sensed by the bulb creates an internal
pressure within the transducer. This pressure is then
123
4
Enclosures
ASCO TRI-POINT switches are available in either a
general purpose or watertight enclosure, in addition to
open frame construction. These enclosed units are
made in accordance with NEMA and UL standards.
These standards define the protection level an
enclosure gives and the tests it must pass to meet
a particular design.
accidental contact with the equipment. P-Series
general purpose enclosures are painted, zinc-coated
steel and have a 7/8” diameter hole at the top for
electrical entry.
Watertight – Type 4. Watertight and dust-tight
enclosures are intended for use indoors and outdoors
to protect the enclosed equipment against splashing or
water, and severe external condensation. P-Series
watertight switch enclosures are epoxy-painted, zinccoated steel with a 1/2” conduit hub in the side of the
lower housing for electrical entry. (For optional 316 SS
watertight enclosure see page 29.)
Dimensions (inches)
P-Series Temperature (Mounting brackets optional)
Open Frame PA and PC Switch Units
with Transducer Unit Types RD-RV
Open Frame PB and PG Switch Units
2.5
2.5
.233 DIA HOLES
FOR MOUNTING
WITH #10 (.190 DIA.)
SCREWS (2 PLACES)
2.5
2.4
1.8
3.8
DIA.
3.8
DIA.
5.7
4.2
9.926
4.0
5.54
5.1
9.5
4.5
.4
1/2 NPT
1.8
.233 DIA HOLES FOR
MOUNTING WITH #10
(.190 DIA.)
SCREWS
(2 PLACES)
.4
1/2 NPT
1.8
3.8
DIA.
.233 DIA HOLES FOR
MOUNTING WITH #10
(.190 DIA.)
SCREWS
(2 PLACES)
3.8
DIA.
1.5
1.5
2.7
Type 1 General Purpose Switch Unit
Type 4 Watertight Switch Unit
1.8
ADDITIONAL SPACING REQUIRED
7/8 DIA. HOLE
FOR 1/2 CONDUIT
CONNECTION
1.4
.8
.223 DIA. HOLES
FOR MOUNTING
WITH #10 (.190 DIA.)
SCREWS (2 PLACES)
4.9
4.5
1.7
2.5
4.0
2.6
1.8
.5
.08
3.8
DIA.
3.8
DIA.
1/2 NPT
CONDUIT
CONNECTION
5.8
4.7
6.5
5.3
4.8
6.4
5.3
10.3
9.6
2.5
3.0
1.9
.3
1/2 NPT
.4
1.8
1/2 NPT
1.8
2.04
.233 DIA HOLES FOR
MOUNTING WITH #10
(.190 DIA.)
SCREWS
(2 PLACES)
.233 DIA HOLES FOR
MOUNTING WITH #10
(.190 DIA.)
SCREWS
(2 PLACES)
3.8
DIA.
2.0
3.8
DIA.
4.0
1.5
3.0
25
4
123
How to Order
How to Select
1.
2.
3.
4.
Select the adjustable operating range based on desired actuation temperature.
Check that rated overrange temperature is sufficient.
Read across and select the desired P-Series switch unit with the proper enclosure.
Continue across and select a matching transducer unit.
Select P-Series temperature switch
PA Switch Unit
e.g., PA16A/KA10A1.
number, e.g., one PA16A and one KA10A1.
e.g., PA 1 6A and KA 1 0A1.
PB Switch Unit
minimum difference
between set and
reset points is the
deadband listed
below; the
maximum
difference is
the full range
of the switch .
PC Switch Unit
Two-Stage Fixed Deadband units consist of
two separate snap-action switches, each with an
independently adjustable set point and nonadjustable reset point. The difference between the
set and reset points of each switch is
the deadband listed below;
the minimum difference
between the set points
of the two switches
is the separation.
Open Frame
Open Frame
Specifications
Adjustable Deadband
Maximum
Full Scale
Adjustable
Operating
Capillary
Range
Direct
(°F)
Mount Copper SS
-30 - 60
0 - 90
50 - 160
100 - 220
160 - 260
225 - 340
300 - 450
350 - 510
250
260
260
260
260
-------
250
300
350
400
500
550
550
550
10
10
10
10
10
10
12
12
26
Fixed Deadband
Open
Frame
1
Transducer Unit
The temperature transducer works on the vapor principle where
the internal pressure within the system is generated by the vapor
pressure of a chemical within a sealed system. The temperature
sensed by the bulb is related uniquely to an internal pressure
within the system. The pressure acts on a diaphragm/piston to
create the force output from the transducer into the switch unit.
Temperature transducers are available in two constructions. The
direct mount (local) unit includes a 1/2” NPT connection for
direct application to the process. The capillary and bulb-type
construction allows for remote mounting from the process.
PA16A
PA16A
PA16A
PA16A
PA16A
PA16A
PA16A
PA16A
Open
Frame
General
Purpose
Watertight
Enclosure
Catalog
No.
Fixed
Deadband
At
Mid-Range
(°F) 1
Catalog
No.
Catalog
No.
Catalog
No.
PA11B
PA11B
PA11B
PA11B
PA11B
PA11B
PA11B
PA11B
4
4
4
4
4
4
5
5
PB16A
PB16A
PB16A
PB16A
PB16A
PB16A
PB16A
PB16A
PB10A
PB10A
PB10A
PB10A
PB10A
PB10A
PB10A
PB10A
PB11B
PB11B
PB11B
PB11B
PB11B
PB11B
PB11B
PB11B
General
Purpose
Watertight
Enclosure
Catalog
No.
PA10A
PA10A
PA10A
PA10A
PA10A
PA10A
PA10A
PA10A
°C = (°F -32) x 5/9
Capillary
and Bulb
Temperature Transducer Units
Separation
Minimum At
Mid-Range Catalog
(°F) 1
No.
250
300
350
450
500
600
700
800
Direct Mount
1/2” NPT
Open Frame
Adjustable
Deadband
Rated
Overrange
Temperature (°F)
Fixed
Deadband
At
Mid-Range
(°F)
7
7
7
7
7
7
9
9
Maximum
Full Scale
Direct Mount
6’ Capillary and Bulb
General
Purpose
Watertight
Enclosure
Minimum At
Mid-Range
(°F)
Open
Frame
Copper
316 SS
Copper
316 SS
Copper
316 SS
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
9
9
11
12
10
12
15
16
PC16A
PC16A
PC16A
PC16A
PC16A
PC16A
PC16A
PC16A
PC10A
PC10A
PC10A
PC10A
PC10A
PC10A
PC10A
PC10A
PC11B
PC11B
PC11B
PC11B
PC11B
PC11B
PC11B
PC11B
KB10A1
KD10A1
KF10A1
KJ10A1
KL10A1
-------
KB10A4
KD10A4
KF10A4
KJ10A4
KL10A4
-------
KB11A1
KD11A1
KF11A1
KJ11A1
KL11A1
KN11A1
KT11A1
KU11A1
KB11A4 KB11A1D KB11A4D
KD11A4 KD11A1D KD11A4D
KF11A4 KF11A1D KF11A4D
KJ11A4 KJ11A1D KJ11A4D
KL11A4 KL11A1D KL11A4D
KN11A4 KN11A1D KN11A4D
KT11A4 KT11A1D KT11A4D
KU11A4 KU11A1D KU11A4D
27
4
123
How to Order
How to Select
1.
2.
3.
4.
Read across and select the desired P-Series switch unit with the proper enclosure.
Continue across and select a matching transducer unit.
Select P-Series temperature switch
PA Switch Unit
e.g., PA16A/KA10A1.
number, e.g., one PA16A and one KA10A1.
e.g., PA 1 6A and KA 1 0A1.
PB Switch Unit
minimum difference
between set and
reset points is the
deadband listed
below; the
maximum
difference is
the full range
of the switch .
PC Switch Unit
Two-Stage Fixed Deadband units consist of
two separate snap-action switches, each with an
independently adjustable set point and nonadjustable reset point. The difference between the
set and reset points of each switch is
the deadband listed below;
the minimum difference
between the set points
of the two switches
is the separation.
Open Frame
Open Frame
Specifications
Adjustable Deadband
Maximum
Full Scale
Adjustable
Operating
Capillary
Range
Direct
(°F)
Mount Copper SS
-30 - 60
0 - 90
50 - 160
100 - 220
160 - 260
225 - 340
300 - 450
350 - 510
250
260
260
260
260
-------
250
300
350
400
500
550
550
550
10
10
10
10
10
10
12
12
26
Fixed Deadband
Open
Frame
1
Transducer Unit
PA16A
PA16A
PA16A
PA16A
PA16A
PA16A
PA16A
PA16A
Open
Frame
General
Purpose
Watertight
Enclosure
Catalog
No.
Fixed
Deadband
At
Mid-Range
(°F) 1
Catalog
No.
Catalog
No.
Catalog
No.
PA11B
PA11B
PA11B
PA11B
PA11B
PA11B
PA11B
PA11B
4
4
4
4
4
4
5
5
PB16A
PB16A
PB16A
PB16A
PB16A
PB16A
PB16A
PB16A
PB10A
PB10A
PB10A
PB10A
PB10A
PB10A
PB10A
PB10A
PB11B
PB11B
PB11B
PB11B
PB11B
PB11B
PB11B
PB11B
General
Purpose
Watertight
Enclosure
Catalog
No.
PA10A
PA10A
PA10A
PA10A
PA10A
PA10A
PA10A
PA10A
°C = (°F -32) x 5/9
Capillary
and Bulb
Separation
Minimum At
Mid-Range Catalog
(°F) 1
No.
250
300
350
450
500
600
700
800
Direct Mount
1/2” NPT
Open Frame
Adjustable
Deadband
Rated
Overrange
Temperature (°F)
Fixed
Deadband
At
Mid-Range
(°F)
7
7
7
7
7
7
9
9
Maximum
Full Scale
Direct Mount
General
Purpose
Watertight
Enclosure
Minimum At
Mid-Range
(°F)
Open
Frame
Copper
316 SS
Copper
316 SS
Copper
316 SS
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
9
9
11
12
10
12
15
16
PC16A
PC16A
PC16A
PC16A
PC16A
PC16A
PC16A
PC16A
PC10A
PC10A
PC10A
PC10A
PC10A
PC10A
PC10A
PC10A
PC11B
PC11B
PC11B
PC11B
PC11B
PC11B
PC11B
PC11B
KB10A1
KD10A1
KF10A1
KJ10A1
KL10A1
-------
KB10A4
KD10A4
KF10A4
KJ10A4
KL10A4
-------
KB11A1
KD11A1
KF11A1
KJ11A1
KL11A1
KN11A1
KT11A1
KU11A1
KB11A4 KB11A1D KB11A4D
KD11A4 KD11A1D KD11A4D
KF11A4 KF11A1D KF11A4D
KJ11A4 KJ11A1D KJ11A4D
KL11A4 KL11A1D KL11A4D
KN11A4 KN11A1D KN11A4D
KT11A4 KT11A1D KT11A4D
KU11A4 KU11A1D KU11A4D
27
How to Select
How to Order
on desired actuation temperature.
2. Check that rated overrange temperature is
sufficient.
3. Read across and select the desired
P-Series switch unit with the proper enclosure.
transducer unit.
Factory assembled – Simply order the switch and transducer unit by
catalog number joined by a slash (/), e.g., PG16A/KA10A1.
Field assembled – Simply order the switch and transducer units separately
by individual catalog number, e.g., one PG16A and one KA10A1.
Options – Add appropriate suffix for desired option (see pages 34-35).
Important Note: The third digit of each of the catalog numbers must be
identical, e.g., PG 1 6A and KA 1 0A1.
Select P-Series switch unit and transducer unit below
PG Switch Unit
Transducer Unit
Limited Adjustable Deadband units
have an adjustable set point and use
a special snapaction switch
that varies the
deadband
within the
limits listed
below.
The temperature transducer works on the
vapor principle where the internal pressure
within the system is generated by the vapor
pressure of a chemical within a sealed system. The temperature sensed by the bulb
is related uniquely to an internal pressure
within the system. The pressure acts on a
diaphragm/piston to create the force output
from the transducer into the switch unit.
Open Frame
Specifications
Limited Adjustable Deadband
Maximum
Full Scale
Adjustable
Capillary
Operating
Range
Direct
(°F)
Mount Copper SS
Direct Mount
Open
Frame
General
Purpose
Watertight
Enclosure
Minimum At
Mid-Range
(°F) 1
Catalog
No.
Catalog
No.
Catalog
No.
Capillary
and Bulb
Adjustable
Deadband
Rated
Overrange
Temperature (°F)
6’ Capillary
and Bulb
Copper 316 SS Copper 316 SS
12’ Capillary
and Bulb
Copper
316 SS
Catalog Catalog Catalog Catalog Catalog
No.
No.
No.
No.
No.
Catalog
No.
-30 - 60
250
250
250
6 - 12
PG16A
PG10A
PG11B
KB10A1 KB10A4 KB11A1 KB11A4 KB11A1D KB11A4D
0 - 90
260
300
300
6 - 12
PG16A
PG10A
PG11B
KD10A1 KD10A4 KD11A1 KD11A4 KD11A1D KD11A4D
KF10A1 KF10A4 KF11A1 KF11A4 KF11A1D KF11A4D
50 - 160
260
350
350
6 - 12
PG16A
PG10A
PG11B
100 - 220
260
400
450
6 - 12
PG16A
PG10A
PG11B
KJ10A1 KJ10A4 KJ11A1 KJ11A4 KJ11A1D KJ11A4D
160 - 260
260
500
500
6 - 12
PG16A
PG10A
PG11B
KL10A1 KL10A4 KL11A1 KL11A4 KL11A1D KL11A4D
225 - 340
---
550
600
6 - 12
PG16A
PG10A
PG11B
---
---
300 - 450
---
550
700
6 - 12
PG16A
PG10A
PG11B
---
---
KT11A1 KT11A4 KT11A1D KT11A4D
350 - 510
---
550
800
6 - 12
PG16A
PG10A
PG11B
---
---
KU11A1 KU11A4 KU11A1D KU11A4D
KN11A1 KN11A4 KN11A1D KN11A4D
°C = (°F -32) x 5/9
28
Direct Mount
1/2” NPT
1
123
4
Switches with Optional 316 Stainless Steel Enclosure
Every ASCO P-Series temperature switch
is available in a corrosion-resistant, stainless steel enclosure. Typical applications
include:
• Offshore platforms
• Hydrocarbon processing plants
• Oil & gas fields
• Oil & gas transmission lines
• Chemical plants
• Breweries
• Paper pulp mills
• Salt spray locations
Stainless Steel Enclosure
ASCO Type 4X watertight enclosure is
designed to provide protection against
windblown dust, rain, sleet or external ice
formation. The switch and transducer unit
are available only as factory-assembled
units.
ASCO P-Series switches with 316 SS
enclosure consist of two factory-assembled
components, the switch unit and the
transducer unit.
How to Select (use tables on pages 26-28)
on desired actuation temperature.
2. Check that rated overrange temperature is
sufficient.
3. Read across and select the desired P-Series
switch unit with open frame construction.
4. To add a 316 SS enclosure, change the fourth
digit of the open frame catalog number from “6”
to “5”, e.g., PG1 6 A becomes PG5 5 A.
5. Continue across and select a matching direct
mount or capillary and bulb transducer unit compatible with the fluid. For direct mount unit add
suffix “D” to switch catalog number, e.g., PG15A
becomes PG15AD; for capillary and bulb unit
add suffix “C”, e.g., PG15A becomes PG15AC.
How to Order
Factory assembled only – Simply order the
switch and transducer unit by catalog number
joined by a slash (/), e.g., PG15AD/KA10A4 for
direct mount and PG15AC/KA11A4 for capillary
and bulb unit.
Options – Add appropriate suffix for desired
option (see pages 34-35).
Dimensions (inches)
P-Series Temperature with Optional 316 SS Enclosure
4.9
4.5
4.9
4.5
1/2 NPT
CONDUIT
CONNECTION
1/2 NPT
CONDUIT
CONNECTION
3/8 DIA.
6.9
5.6
WRENCH
TIGHT
DIMS. FOR
1/2 PIPE
THREADS
2.3
.27 DIA
2 HOLES
FOR
MOUNTING*
1.7
.27 DIA.
2 HOLES
FOR
MOUNTING*
1.7
9.54
1.8
1.8
1/2 NPT
3/8 DIA.
4.0
*MOUNTING BRACKET OPTIONAL
5.35
1/2 NPT
CONDUIT
CONNECTION
1.7
.4
2.3
4.3
29
S-SERIES Temperature Switches
Switches for -60 through 640°F with Adjustable Set Points,
Fixed or Adjustable Deadband and General Purpose,
Watertight or Explosion-Proof Enclosures
Features:
• Set point repeatability, +1°F (1/2°C).
• Choice of general purpose, watertight or
explosion-proof enclosures.
• Choice of fixed or full-range adjustable deadband.
• Manual reset units available.
• Visual adjustment scales in °F and °C.
• External adjusting nuts.
• Separate temperature, electrical and adjusting
chambers.
• Direct mount (local) or capillary and bulb (remote)
sensors.
• Temperature transducers available with copper or
316 stainless steel wetted material.
• Withstands high overrange temperatures.
ranges in field.
ASCO S-Series temperature switches consist of a
switch unit and a transducer unit. They can be ordered
Switch
S-Series temperature switch units incorporate the
SA, SB, SC, SD and SE Series
1/8 HP, 125 VAC
1/4 HP, 250 VAC
^%
SPDT
NO
C
NC
Ambient: -4°F (-20°C) to 140°F (60°C)
Fluid:
See specification table on page 32
for rated overrange temperature.
from the process. The transducer unit (like the switch
unit) is a fully-tested, self-contained subassembly.
Transducer
The temperature transducer unit uses a vapor pressure
principle where the internal pressure within the unit is
generated by the vapor pressure of a chemical within a
sealed system. Temperature transducers are available
in two constructions, a direct mount or capillary and
bulb construction. The direct mount unit includes a 1/2”
NPT connection for direct mounting to the process. The
capillary and bulb construction allows remote mounting
30
Operation
Temperature sensed by the bulb creates an internal
pressure within the transducer. This pressure is then
4
123
Enclosures
are provided.
to produce explosive or ignitable mixtures. Class I
locations are classified by group letter, which defines
particular atmospheres. Division 1 locations are areas
where the hazardous concentration exists continuously,
intermittently or periodically under normal operating
conditions. Division 2 locations are those where the
hazardous vapors are present only in case of accidental rupture or breakdown of equipment.
are intended for use in locations defined by the National
Dimensions (inches)
S-SeriesTemperature
With Direct Mount Transducer
With Capillary and Bulb Transducer
3.5
4.1
1.03
2.3
1.6
3/4 NPT FOR
CONDUIT CONN.
BOTH ENDS
11.6
11/32 DIA. FOR
MOUNTING
(2PLACES)
1.0
3.8
DIA.
8.9
2.2
4.0
1/2 NPT
3.2
3.8
31
4
123
How to Select
1.
2.
3.
4.
Read across and select the desired S-Series switch unit with the proper enclosure.
Continue across and select a matching transducer unit compatible with the fluid.
How to Order
by a slash (/),
e.g., SA10D/QA10A1.
SA10D and one QA10A1.
Options – Add appropriate
suffix for desired option
(see pages 34-35).
Select S-Series temperature switch
SA Switch Unit
minimum difference between set and
reset points is the
deadband listed
below; the
maximum
difference is the
full range of the
switch .
Important Note: The third digit
of each of the catalog numbers
must be identical,
e.g., SA 1 0D and QA 1 0A1.
SA, SB, SC, SD or SE unit below
SC Switch Unit
temperature units operate automatically on
increasing temperature and must be reset
manually on decreasing temperature.
decreasing temperature and must be reset
manually on increasing temperature.
reset point. The difference between the set and reset
points of each switch is the
minimum difference between
the set points of the two
switches is the separation.
General Purpose
Specifications
Adjustable Deadband
Maximum
Full Scale
Adjustable
Operating
Capillary
Range
Direct
(°F)
Mount Copper SS
-30 - 60
0 - 90
50 - 160
100 - 220
160 - 260
225 - 340
300 - 450
350 - 510
425 - 640
250
260
260
260
260
---------
250
300
350
450
500
550
550
550
550
Minimum At
Mid-Range Catalog
(°F) 1
No.
Catalog
No.
Catalog
No.
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
3
3
3
3
3
6
6
7
20
Catalog
No.
Catalog
No.
Catalog
No.
Fixed
Deadband
At
Mid-Range
(°F) 1
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
4
4
4
4
4
8
8
10
27
Proof
1
Transducer Unit
Transducer Units
Separation
Fixed
Deadband
At
Mid-Range
(°F) 1
8
8
8
8
9
12
12
18
32
250
300
350
450
500
600
700
800
890
°C = (°F -32) x 5/9
32
Proof
Capillary
and Bulb
Explosion Proof
Adjustable
Deadband
Rated
Overrange
Temperature (°F)
Direct Mount
1/2” NPT
Maximum
Full Scale
Direct Mount
General
Purpose
Catalog
No.
Catalog
No.
8
8
8
8
9
12
12
18
32
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
316 SS
(Plain
Capillary)
Copper
(Armored
Capillary)
316 SS &
(Plain
Capillary)
Copper
316 SS
Copper
(Armored
Capillary)
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
QB10A1
QD10A1
QF10A1
QJ10A1
QL10A1
---------
QB10A4
QD10A4
QF10A4
QJ10A4
QL10A4
---------
QB11A1
QD11A1
QF11A1
QJ11A1
QL11A1
QN11A1
QT11A1
QU11A1
---
QB11A4
QD11A4
QF11A4
QJ11A4
QL11A4
QN11A4
QT11A4
QU11A4
QW11A4
QB11A1D
QD11A1D
QF11A1D
QJ11A1D
QL11A1D
QN11A1D
QT11A1D
QU11A1D
---
QB11A4D
QD11A4D
QF11A4D
QJ11A4D
QL11A4D
QN11A4D
QT11A4D
QU11A4D
QW11A4D
Watertight ExplosionEnclosure
Proof
Minimum At
Mid-Range
(°F) 1
33
4
123
How to Select
1.
2.
3.
4.
Read across and select the desired S-Series switch unit with the proper enclosure.
Continue across and select a matching transducer unit compatible with the fluid.
How to Order
by a slash (/),
e.g., SA10D/QA10A1.
SA10D and one QA10A1.
Options – Add appropriate
suffix for desired option
(see pages 34-35).
Select S-Series temperature switch
SA Switch Unit
minimum difference between set and
reset points is the
deadband listed
below; the
maximum
difference is the
full range of the
switch .
Important Note: The third digit
of each of the catalog numbers
must be identical,
e.g., SA 1 0D and QA 1 0A1.
SA, SB, SC, SD or SE unit below
SC Switch Unit
increasing temperature and must be reset
manually on decreasing temperature.
decreasing temperature and must be reset
manually on increasing temperature.
reset point. The difference between the set and reset
points of each switch is the
minimum difference between
the set points of the two
switches is the separation.
General Purpose
Specifications
Adjustable Deadband
Maximum
Full Scale
Adjustable
Operating
Capillary
Range
Direct
(°F)
Mount Copper SS
-30 - 60
0 - 90
50 - 160
100 - 220
160 - 260
225 - 340
300 - 450
350 - 510
425 - 640
250
260
260
260
260
---------
250
300
350
450
500
550
550
550
550
Minimum At
Mid-Range Catalog
(°F) 1
No.
Catalog
No.
Catalog
No.
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA10D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA11D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
SA12D
3
3
3
3
3
6
6
7
20
Catalog
No.
Catalog
No.
Catalog
No.
Fixed
Deadband
At
Mid-Range
(°F) 1
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB10D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB11D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
SB12D
4
4
4
4
4
8
8
10
27
Proof
1
Transducer Unit
Transducer Units
Separation
Fixed
Deadband
At
Mid-Range
(°F) 1
8
8
8
8
9
12
12
18
32
250
300
350
450
500
600
700
800
890
°C = (°F -32) x 5/9
32
Proof
Capillary
and Bulb
Explosion Proof
Adjustable
Deadband
Rated
Overrange
Temperature (°F)
Direct Mount
1/2” NPT
Maximum
Full Scale
Direct Mount
General
Purpose
Catalog
No.
Catalog
No.
8
8
8
8
9
12
12
18
32
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC10D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
SC11D
316 SS
(Plain
Capillary)
Copper
(Armored
Capillary)
316 SS &
(Plain
Capillary)
Copper
316 SS
Copper
(Armored
Capillary)
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
Catalog
No.
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
SC12D
QB10A1
QD10A1
QF10A1
QJ10A1
QL10A1
---------
QB10A4
QD10A4
QF10A4
QJ10A4
QL10A4
---------
QB11A1
QD11A1
QF11A1
QJ11A1
QL11A1
QN11A1
QT11A1
QU11A1
---
QB11A4
QD11A4
QF11A4
QJ11A4
QL11A4
QN11A4
QT11A4
QU11A4
QW11A4
QB11A1D
QD11A1D
QF11A1D
QJ11A1D
QL11A1D
QN11A1D
QT11A1D
QU11A1D
---
QB11A4D
QD11A4D
QF11A4D
QJ11A4D
QL11A4D
QN11A4D
QT11A4D
QU11A4D
QW11A4D
Watertight ExplosionEnclosure
Proof
Minimum At
Mid-Range
(°F) 1
33
OPTIONS Pressure/Temperature Switches
H-Series, P-Series and S-Series
Snap-Action Switch Options
P-Series
Switch Options
Optional snap-action switches to meet specific electrical loads
or application conditions are available on most ASCO TRI-POINT
switch units. Generally, the construction of a switch unit with
optional snap-action switches contains other specific parts and
may be ordered only as a factory-built unit. To specify a particular
optional construction, add the appropriate suffix to the switch unit
catalog number, e.g., SA10D with optional gold contact snapaction switch (suffix “P”) would become SA10D P .
Panel Mount – Open frame P-Series compact switch units are
Description
DC Rating
1 Amp
Double Break
5 Amp, 125, 250 VAC
1/4 HP, 125 VAC
1/2 HP, 250 VAC
1 Amp, 125 VDC
1/2 Amp, 250 VDC
DC Rating
10 Amps, SPDT
10 Amp, 125 VAC, VDC
1/8 HP, 125 VAC, VDC
Double-pole
Double-throw
(Two SPDT
Switches with
Common Lever)
Gold Contact
Dry Circuit SPDT
5 Amp, 125, 250 VAC
1/8 HP, 125 VAC
1/4 HP, 250 VAC
1/2 Amp, 125 VDC
1/4 Amp, 250 VDC
1 Amp, 28 VAC
1 Amp, 28 VDC
25 Amp Res, 28 VDC
10 Amp Ind, 28 VDC
5 Amp Motor, 28 VDC
3 Amp Lamp, 28 VDC
1 Amp, 125 VAC
5 Amp, 125, 250 VAC
1/8 HP, 125 VAC
1/4 HP, 250 VAC
1/2 Amp, 125 VDC
1/4 Amp, 250 VDC
20 Amp, 125, 250 VAC
1 HP, 125 VAC
2 HP, 250 VAC
1/2 Amp, 125 VDC
1/4 Amp, 250 VDC
5 Amp, 125, 250 VAC
1/8 HP, 125 VAC
1/4 HP, 250 VAC
1/2 Amp, 125 VDC
1/4 Amp, 250 VDC
5 Amp, 125, 250 VAC
1/8 HP, 125 VAC
1/4 HP, 250 VAC
1/2 Amp, 125 VDC
Hermetically
Sealed
SPDT
High Ambient
250°F
SPDT
High Power
1 HP
SPDT
Moisture
Resistant
Sealed Switch
SPDT
Tight
Fixed
Deadband
SPDT
34
Electrical Rating
Catalog
Suffix
G
M
K
P
H
available for panel mounting with the switch unit inside and the
transducer outside. The panel separates the fluid sensing portion
from the electromechanical portion. Five holes for bolts and
operating stem must be drilled or punched through the panel.
Three constructions are available: add the suffix listed below to
the switch unit catalog number for the desired thickness.
Deadband Variation
From Listing
SA: +50%
SB, SC, PA: +100%
H: +200%
PB: +400%
SA: +50%
SB, SC, PA: +100%
H: +120%
PB: +400%
SA, SB, SD, SE, PB: +50%
SA, SB, SC, PA: +25%
H: +50%
PB, PC: +100%
SA, PA: +100%
H: +200%
PB: +600%
F
SA, SB, SC: +25%
W
SA: +50%
SB, SC: +100%
PB: +400%
J
SA: None
SB, SC, PA: +25%
PB, H: +50%
T
SB, SC: -50%
Panel Thickness
Suffix
10 Ga (.135+.005)
14 Ga (.075+.005)
16 Ga (.060+.005)
10
11
12
S-Series
Switch Options
Industrial Adjusting Nut Covers –
Available in clear plastic or metal to
prevent tampering with set point
adjusting nuts.
Clear plastic cover: To order, add
suffix “1” to the switch unit catalog
number, or order separately as SP01.
Metal cover: To order, add suffix “2” to
the switch unit catalog number, or
order separately as SP02.
JIC Construction – A switch unit
having the electrical and adjusting nut
covers attached to the switch body by
a chain. Also designed to Type 13
specifications. To order, add suffix “3”
to the switch unit catalog number, or
order separately as SP03.
Terminal Block – Applicable to switch
units with one single-poledouble-throw
switch. The terminal strip is prewired
to the snap-action switch. To order, add
suffix “4” to the switch unit catalog
number, or order separately as SP04.
Factory Sealed – Explosion-proof
units may be ordered with a factory
seal separating the electrical chamber
from the conduit hubs and 24” long
#14 AWG 105°C. rated lead wires. To
order, change the fourth digit of the
switch unit catalog number from “2” to
“3”, e.g., SA1 2 D becomes SA1 3 D.
4
123
Pressure Transducer Options
Special Wetted Materials – The following diaphragms may
be substituted on transducer body materials of aluminum,
brass, polyester and stainless steel. To order, substitute the
material code below in the seventh digit of the transducer
catalog number, e.g., a TF10A1 1 with optional FKM diaphragm
becomes a TF10A1 2 .
Material
Code
Diaphragm
Buna “N”
Ethylene Propylene
Neoprene
Fluorosilicone
FKM
1
6
3
7
2
Pressure Snubbers – A pressure snubber (1/4” NPTF by
1/4” NPTM) installed in the transducer pressure connection
will dampen the pressure spikes to a value which will not
cause damage. It consists of a body with a porous metal disc
of stainless steel through which the fluid passes. To order,
select a snubber compatible with the fluid. Available by
seperate catalog number only (see table below).
Temperature Range
-4°F (-20°C) to 180°F (82°C)
-4°F (-20°C) to 250°F (121°C)
-4°F (-20°C) to 180°F (82°C)
-40°F (-40°C) to 250°F (121°C)
-4°F (-20°C) to 250°F (121°C)
Oxygen Cleaning – Pressure transducers for oxygen service
should be specially cleaned. They are degreased and blacklight
inspected, then assembled in a clean area and tested with
oil-free air or nitrogen. Use metal body transducer with FKM or
neoprene diaphragm and add suffix “H” to transducer catalog
number, e.g., TA40A13 becomes TA40A13 H .
Brass
303 SS
Catalog No. Catalog No.
Fluid
Air, Non-Hazardous Gases
Water, Light Oil (under 225 SSU)
Oil (Heavy, (over 225 SSU)
Pressure Rating (psig)
TP04G2
TP04E2
TP04D2
2000
TP04G3
TP04E3
TP04D3
5000
Process Connection – A female process connection (1/4”
NPT) is standard on all pressure transducers. A 1/2” NPT is
available as an option on gauge pressure transducers. To
order, add suffix “B” to transducer catalog number, e.g.,
RF10A21 becomes RF10A21 B .
Note: Not available on nylon transducers.
P-Series and S-Series Temperature Transducer Options
Armored Capillaries – Double braided copper armor is
standard for copper capillary units. Stainless steel spiral
interlocked armor is available for stainless steel capillary
units. Add suffix “C” to transducer catalog number.
Thermal Well
Thermal Well 1 – Use with direct or remote sensors for
protecting sensing bulb. This allows removal of bulb while
maintaining a pressure-tight vessel. Available in 1/2” NPT or 3/4”
NPT process connection in brass or 316 SS. Dimensions are in
accordance with SAMA Std. RC17-9. Standard “U” dimension
(insertion length) is 2-1/2” for direct mount and 6’ capillary units
and is 4-1/2” for 12’ capillary units.
Material
Brass
316 SS
1
Pressure
Rating
(psig)
1000
6000
Process Connection
“U”
1/2” NPT
3/4” NPT
Dimensions
(Inches) Catalog No. Catalog No.
2-1/2
4-1/2
7-1/2
10-1/2
2-1/2
4-1/2
7-1/2
10-1/2
QP03
QP13
QP23
QP33
QP07
QP17
QP27
QP37
QP04
QP14
QP24
QP34
QP08
QP18
QP28
QP38
Longer Capillaries – Standard copper and stainless steel
capillary units can be furnished in 12’ lengths. To order, add
suffix “D” to transducer catalog number.
Consult ASCO for longer length capillaries.
Capillary
Length
(Feet)
Transducer
Suffix
6
12
13 - 20
21 - 50
51 - 80
--D
E
F
G
Bulb
Length
(Inches)
3-1/2
5-1/2
5-1/2
8-1/2
11-1/2
“U” Dimension
Required
(Inches)
2-1/2
4-1/2
4-1/2
7-1/2
10-1/2
Union Connector – For use with remote units for mounting
of bulb in fluid being controlled. Available in 1/2” NPT and
3/4” NPT process connections in brass or 316 SS.
Process Connection
1/2” NPT
3/4” NPT
Material
Pressure
Rating
(psig)
Catalog No.
Catalog No.
Brass
316 SS
500
1500
QP01
QP05
QP02
---
Jam nuts provided with thermal wells.
35
Definitions and Fluid Compatibility Guide
Definitions
Accuracy – The maximum deviation from the set point
under specified operating condition (ambient temperature,
barometric pressure, etc.).
Adjustable Deadband – Refers to the capability of a
pressure or temperature switch to allow the deadband to be
adjusted over a given range. Certain ASCO TRI-POINT
switches have an adjustable deadband which can be
adjusted over the total operating range of the switch.
Adjustable Operating Range – The pressure or temperature range of the switch within which the set point may be
adjusted.
Differential Pressure – The difference between two
pressures. A differential pressure switch senses two pressure
sources and can be adjusted to actuate on a desired
difference between them.
Guage Pressure – The actual reading of a typical pressure
guage and is the difference between the pressure within a
vessel and the atmospheric pressure surrounding it. It is
normally measured in pounds per square inch (psig).
Manual Reset – The switch is a semi-automatic device
which operates automatically with a signal change in one
direction but must be manually reset once the signal returns
to its original position.
Proof Pressure – A pressure which a device can be
subjected to for extended periods of time without changes
in its operating characteristics.
Rated Overrange Temperature – A temperature which a
device can be subjected to for extended periods of time
without changes in its operating characteristics.
Repeatability – The closeness of agreement among a
number of consecutive measurements of the output for the
same value of input under the same operating conditions
approaching from the same direction. Repeatability is
normally specified as a percentage of the upper limit of the
operating range.
Example: Operating range 5-100 psig with +1%
repeatability; equals +1% of 100 psig or +1 psig.
Reset Point – After a pressure or temperature switch has
reached its set point and operated the electrical switch, it
must return to a point called the reset point before the
electrical switch can return to its original position.
Set Point – The pressure reading at which the electrical
switch element changes contact position (it can be specified
either increasing or decreasing).
36
Switch Unit – ASCO uses the term “switch unit” to describe
the electromechanical portion of a pressure or temperature
switch. This is used in conjunction with a transducer unit to
form a complete pressure or temperature switch.
Transducer Unit – ASCO uses the term “transducer unit” to
describe that portion of a pressure or temperature switch to
which a pressure or temperature is applied which converts
the input signal to another form of energy to operate the
switch unit.
Two-Stage (Dual) – ASCO uses the term “two stage” to
describe a pressure or temperature switch which is equivalent
to two pressure or temperature switches which are
independently adjustable. This switch is equivalent to two
fixed deadband switches.
Deadbands – The deadband is the difference between the
set point and reset point readings. Deadbands are listed
in the specification tables at nominal values. They are
representative of the deadbands of the units at the middle
of the range.
The deadband values for the full range adjustable deadband
switches and limited adjustable deadband switches indicate
the values through which the deadband may be adjusted.
Generally, as the set point is adjusted through the operating
range, the deadband will vary. Normally, it will become
narrower as the set point is towards the bottom of the range,
and will become wider when the set point is towards the top
of the range. The graph shown below indicates representative
trends of this type of deadband variation.
Deadbands
1.5 x Catalog
Value
Catalog
Value
Half Catalog
Value
Bottom
Mid
Top
Position of Set Point in Range
Temperature switch deadbands are a result of the characteristics of the vapor pressure curve as well as other factors.
Normally, this results in a deadband which is narrower in the
top third of the range than in the bottom third of the range.
The values published are nominal and representative of midrange set points.
4
123
Fluid Compatibility Guide
These recommendations are to be used as a guide only, as service
life of material is dependent on temperature, concentrations, or
catalysts that may be added and other conditions which are
beyond our control.
Consult ASCO for specific service applications.
Transducer Material Code of Two Digits represents process connection
material and diaphragm material, respectively; these are the sixth and
seventh positions of the pressure transducer catalog number.
Process Connection: 6th Position
Diaphragm: 7th Position
Note:
1 Aluminum
2 Brass
3 303 S.S.
1 Buna “N”
2 FKM
3 Neoprene
Items in black circles are standard catalog units.
All others available on factory order.
P - Indicates preferred construction. S - Indicates satisfactory construction.
Ranges
Available
Material Code
Vacuum
Inches of Water
P.S.I.G. 5 to
11
12
13
16
17
21
Yes Yes Yes Yes Yes Yes
Yes Yes Yes Yes Yes No
400 400 400 400 400 3500
22
Yes
No
3500
23
Yes
No
3500
26
Yes
No
3500
4 316 S.S.
7 Nylon/Brass
27
Yes
No
3500
31
Yes
Yes
8000
32
Yes
Yes
8000
S
S
S
S
S
S
S
P
S
P
S
S
Acetic Acid
Acetylene
Air
P
P
S
S
P
S
P
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
33
Yes
Yes
8000
36
Yes
Yes
8000
S
4 316 S.S.
6 Ethylene Propylene
7 Fluorosilicone
37
Yes
Yes
8000
42
Yes
Yes
8000
S
S
S
S
S
S
S
S
S
S
Ammonia
Argon-Welding
1
Benzene-Benzol
P
Butane
S
S
Carbon Tetrachloride
P
Cellulube
S
S
S
Coke Oven Gas
Ethyl Alcohol (denatured)
Ethylene Glycol
P
P
S
S
S
S
S
S
S
S
S
S
P
S
P
S
S
S
S
P
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
Freon Solvents
(“MF”, “TF”, “BF”)
4
P
S
S
S
S
S
S
S
S
S
S
S
Gas (natural and
P
S
S
manufactured)
P
S
S
P
P
S
S
P
S
S
S
S
Hydrogen
Jet Fuel (JP1 to JP6)
Kerosene
Methyl Alcohol (Methanol)
Naphtha
Nitrogen
Oils (coolant, hydraulic,
lubricating and motor)
Oxygen, Gaseous
P
P
P
P
S
P
P
S
S
S
P
Propane Gas and Liquid
“Pydraul” (“Monsanto”)
S
S
S
S
S
S
P
2
Potassium Sulfate
S
S
S
S
S
P
S
S
S
S
S
P
Toluene (Tolulo)
Vacuum
Vegetable Oil
P
P
S
P
S
S
S
S
S
P
P
S
Steam Condensate
Stoddard Solvent
S
S
S
S
S
3
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
Water, Fresh, Boiler Feed
Water (Distilled, Deionized,
Water, Sea
P
S
S
S
S
S
S
S
S
S
P
S
S
S
S
S
S
S
S
S
S
S
S
P
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
P
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
P
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
Vinegar
Demineralized)
P
P
4
Helium
Steam
S
71
No
No
200
S
P
S
Gasoline
Gas, Inert
P
S
S
P
S
S
S
S
S
S
S
S
P
S
S
S
Freon Refrigerants
Fuel Oils and Diesel
44
No
No
400
S
S
S
S
S
S
S
S
S
S
S
S
P
S
P
P
P
S
Notes: 1 For high purity applications use stainless steel transducers. 2 Oxygen service requires special cleaning, specify suffix “H”. 3 For steam service a condensate loop (pigtail) is required.
4 For pressure transducers for combustion service see pages 20-23.
5 Material availability refers to standard gauge pressure constructions only.
37
Desde1963
INTERRUPTORES Y
Proveedor
SENSORES
DEIntegral
PRESION Y
de Soluciones para
TEMPERATURA
la Industria
INTERRUPTORES Y SENSORES DE PRESION Y
TEMPERATURA
Los interruptores ASCO Tripoint, utilizan la tecnología de
diafragma/pistón para un sensado preciso de presión y temperatura,
garantizado un excelente tiempo de vida. Los materiales de
fabricación son diversos y dependen de fluido a manejar.
Los SENSORES ASCO son maquinados en una sola pieza (cuerpo y
diafragma) para eliminar los problemas ocasionados por el desgaste
de partes internas, garantizando así el tiempo más largo del
mercado.
Sensores
ASCO
4 Sensors
Stainless steel
Leak proof, one piece cavity design
Available for hazardous locations
Broad industrial pressure range
4 Sensors
ASCO, the leader in the design and manufacture of
solenoid valves, now offers a complete line of Pressure
Sensors. With pressure ratings up to 10,000 psig and the
ability to handle difficult applications like steam and
refrigeration, ASCO Pressure Sensors will meet your
most demanding needs. The ASCO Pressure
Sensor line is ideal for accurately measuring
many process fluids in the most demanding,
pulsating, and vibrating environments.
The one piece pressure cavity is machined from
Sensing Element
• Sensor elements are bonded with inorganic
material to provide low drift repeatable signal
• Sensor technology provides high sensitivity
permitting thicker cavities
• MEM's technology
• Wide operating temperature range
• Ranges up to 10,000 psig
• Rugged construction for harsh environments
17.4 PH stainless steel, which offers no source for
contamination of the process fluid or the sensor.
This design provides the stability, accuracy, flexibility, and EMI resistance that your process
needs. This single, machined, pressure cavity
will also allow you to handle a wide variety of
applications, thus standardizing on fewer
sensors, as well as reducing your inventory.
No Leak Path Design
• Pressure cavity is one piece
(17.4 PH stainless steel) construction
• Pressure sensing surface is integral
to body – no separate diaphragm
• Excellent isolation, over-pressure,
and burst characteristics
• No fill fluids utilized
ASCO Pressure Sensors demonstrate
ASCO's commitment to the most reliable
flow control solutions.
INDEX
PAGE
Series 40 Isolated Pressure Sensor
1
Series 42 Panel Mount Isolated Pressure Sensor
3
Series 43 Hazardous Locations Isolated Pressure Sensor
5
Series 44 Intrinsically Safe Isolated Pressure Sensor
7
Series 45 Tank Level Sensor
9
Series 46 Explosionproof Pressure Sensor
11
Series 47 High Accuracy Pressure Sensor
13
Series 50 Wet/Wet Differential Pressure Sensor
15
4
Series 40
Series
Stainless Steel Media Isolated Pressure Sensor
40
Features
• High strength stainless steel construction
• No silicone oil, no internal o-rings, no welds
• Rugged design survives harsh environments
• Compatible with wide range of gases and liquids
• Suitable for high shock and vibration applications
Specifications
Performance @ 25˚C (77˚F)
Accuracy1
<±0.5% BFSL
Stability (1 year)
±0.25% FS, typ.
Electrical Data
Proof Pressure
2X Rated Pressure
Output
4-20mA
1-5VDC, 1-6VDC
0.5-4.5 V ratiometric
5X or 20,000 psig, whichever is less
Excitation
10-28VDC
10-28VDC
5VDC, reg
> 100 Million
Output
Impedance
>10k Ohms
<100 Ohms, nom. <100 Ohms, nom.
Current
Consumption
20mA, typ.
<10mA
<10mA
Bandwith (-3dB): DC to 250 Hz
DC to 1kHz
DC to 1kHz
Output Noise:
-
<2mV RMS
<2mV RMS
Zero Offset
<±1% of FS
<±1% of FS
<±1% of FS
Burst Pressure
Pressure Cycles
1
Accuracy includes: Non-linearity, Hysteresis, and Non-repeatability
Physical Description
Case
304 stainless steel
Electrical Connection Refer to Ordering Information
Wetted Material
Refer to Ordering Information
Span Tolerance <±2.0% of FS <±1.5% of FS
Output Load
See load line
curve below
Reverse Polarity
Yes
Protection
Environmental Data
Temperature
Operating
-40 to 85˚C (-40 to 185˚ F)
Storage
-40 to 100˚C (-40 to 212˚ F)
Thermal Limits
Compensated Range
0 to 55˚C (30 to 130˚ F)
TC Zero
<±1.5% of FS (<±3.0% for 0-25 psig)
TC Span
<±1.5% of FS
Other
Shock
100G, 11msec, 1/2 sine
Vibration
20G Peak, 20 to 2400 Hz
Rating
IP-66
EMI/RFI Protection
Yes
<±1.5% of FS
10k Ohms, min.
10k Ohms, min.
Yes
No
Pressure Ranges*+
Gage
psig
Proof
psig
Burst
psig
Pressure
Range Code
0-25
50
250
00025
0-50
100
250
00050
0-100
200
500
00100
0-200
400
1,000
00200
0-500
1,000
2,500
00500
0-1,000
2,000
5,000
01000
0-2,500
5,000
12,500
02500
0-5,000
10,000
20,000
05000
0-7,500
15,000
20,000
07500
0-10,000
20,000
20,000
10000
* Typical Ranges. All ranges between 0-25 psig and 0-10,000 psig
are available. Please consult factory.
+
Vacuum calibration available. Please consult factory.
Specifications are subject to change without notice.
1
Series
40
4
Ordering Information
Construct a product code using the chart below. (Consult factory for other options)
40-A-00500-B-3-E-0-000
Series
Type
Process
Connection
40
X= Special
Standard
A= 1/4" MNPT
B= 1/8" MNPT
C= 1/4" BSPP Male
E= 1/2" MNPT
Pressure
Range
Pressure
Unit
Outputs
Electrical
Interface
Wetted
Material
XXXXX=
Special
X= Special
X= Special
X= Special
X= Special XXX= Special
B= BAR
A= 0-50mV/V
A= 2ft. cable
0= 17.4 PH 000= No options
B= 20mV/V
B= 4ft. cable
1= 316 L
A10= ±0.10 accuracy
G= 1-10V
C= 6ft. cable
2= Inconel
Insert pressure
range code
from pressure
range chart.
Vacuum = V0000
F= 7/16" -20 UNF Male -14.7psig/-1.01bar
H= 1/8" FNPT
For vacuum replace
first zero with (V) in
J= 1/4" FNPT
pressure code.
S= 1/2" FNPT
(Ex. V0500 =
Vacuum to 500 psig)
K= kg/cm
P= psig
2
W= Inches T= 3mV/V
of H2O
column 1= 10mV/V
2= 0.5-4.5V
ratiometric
D= 10ft. cable
C01 Calibration 1-9
E= Mini DIN 43650
C10 Calibration 10-49
F= Packard Metripack
150 3 pin connector
C50 Calibration 50-up
3= 1-5V
G= 4 pin Molex connector
4= 4-20mA
H= Flex strip 3"
5= 5mV/V
J= 15ft. cable
6= 1-6V
K= 8ft. cable
C0S Cleaned for O2
service
M= Bendix military conn.
R= 6 pin Bendix
T= 25ft. cable
Dimensional Information
Table 1
Output
1-5V
4-20mA
2
Options
Pin 3
Pin 2
Pin 1
+V Supply
+V Supply
-V Supply
-V Supply
Output
N/C
4
Series 42
Series
Panel Mount
42
Features
• Pressure ranges up to 10,000 psig
• Panel up to .3" thick
Specifications
Accuracy1
<±0.5% BFSL
Stability (1 year)
±0.25% FS, typ.
Proof Pressure
2X Rated Pressure
Burst Pressure
Pressure Cycles
> 100 Million
Electrical Data
Output
4-20mA
1-5VDC, 1-6VDC
Excitation
10-28VDC
10-28VDC
5VDC, reg
Output
Impedance
>10k Ohms
Current
Consumption
20mA, typ.
<10mA
<10mA
DC to 1kHz
DC to 1kHz
Output Noise:
-
<2mV RMS
<2mV RMS
Zero Offset
<±1% of FS
<±1% of FS
<±1% of FS
Case
Span Tolerance <±2.0% of FS <±1.5% of FS
1
304 stainless steel
See load line
curve below
Output Load
Wetted Material
Reverse Polarity
Yes
Protection
Environmental Data
<±1.5% of FS
10k Ohms, min.
10k Ohms, min.
Yes
No
Pressure Ranges*
Temperature
Operating
-40 to 85˚C (-40 to 185˚ F)
Storage
-40 to 100˚C (-40 to 212˚ F)
Thermal Limits
Compensated Range
0 to 55˚C (30 to 130˚ F)
TC Zero
<±1.5% of FS (<±3.0 % for 25 psig)
TC Span
<±1.5% of FS
Other
Gage
psig
Proof
psig
Burst
psig
Pressure
Range Code
0-25*
50
250
00025
0-50
100
250
00050
0-100
200
500
00100
0-200
400
1,000
00200
0-500
1,000
2,500
00500
0-1,000
2,000
5,000
01000
0-2,500
5,000
12,500
02500
Shock
0-5,000
10,000
20,000
05000
Vibration
10G Peak, 20 to 2000 Hz
0-7,500
15,000
20,000
07500
EMI/RFI Protection
Yes
0-10,000
20,000
20,000
10000
Rating
IP-66 with housing and cable seal
only. IP-54 w/o housing
Other ranges available, please consult factory. *Output = 5mV/V
3
Series
42
4
42-H-00500-B-3-B-0-000
Series
Type
Process
Connection
42
X= Special
Panel Mount
H= 1/8" FNPT
S= 1/2" FNPT
Pressure
Range
Pressure
Unit
Outputs
Electrical
Interface
Wetted
Material
Options
XXXXX=
Special
X= Special
X= Special
X= Special
X= Special
XXX= Special
B= BAR
A= 0-50mV/V
A= 2ft. cable
K= kg/cm
B= 20mV/V
B= 4ft. cable
1= 316 L
P= psig
G= 1-10V
C= 6ft. cable
2= Inconel
W= Inches
of H2O
column
1= 10mV/V
D= 10ft. cable
C01 Calibration 1-9
3= 1-5V
G= 4 pin Molex
connector
Insert pressure
range code
from pressure
range chart.
Vacuum = V0000
-14.7psig/-1.01bar
For vacuum replace
pressure code.
(Ex. V0500 =
Vacuum to 500 psig)
2
4= 4-20mA
5= 5mV/V
6= 1-6V
H= Flex strip 3"
C0S Cleaned for O2
service
J= 15ft. cable
K= 8ft. cable
T= 25ft. cable
Configuration allows epoxied or
TIG welded housing attachment
(0.810" ID / 0.875" OD)
(V+) Supply
(S+) Output
(S-) Output
(V-) Supply
4-pin Molex Connector
(Mating connector is Molex p/n 22-01-3047
with pins p/n 08-50-0114)
NOTE:
1. Use Greenlee Punch Unit #60086 to prepare the
panel hole. Also available from McMaster-Carr as #3449A65.
Jacketed Cable,
2 ft. long,
0.177" dia.
Table 1
Output
1-5V
4-20mA
4
Pin 3
Pin 2
Pin 1
+V Supply
+V Supply
-V Supply
-V Supply
Output
N/C
4
Series 43
Hazardous Locations
Series
43
Features
• Class I Div. 2, Groups A, B, C, and D for use
in hazardous locations
Specifications
Accuracy1
<±0.25% BFSL
Stability (1 year)
±0.25% FS, typ.
Proof Pressure
2X Rated Pressure
Burst Pressure
Pressure Cycles
> 100 Million
Electrical Data
Output
4-20mA
1-5VDC, 1-6VDC
Excitation
10-28VDC
10-28VDC
5VDC, reg
Output
Impedance
>10k Ohms
Current
Consumption
20mA, typ.
<10mA
<10mA
DC to 1kHz
DC to 1kHz
Output Noise:
-
<2mV RMS
<2mV RMS
Zero Offset
<±1% of FS
<±1% of FS
<±1% of FS
Case
Span Tolerance <±2% of FS
<±1.5% of FS
<±1.5% of FS
10k Ohms, min.
10k Ohms, min.
Yes
No
1
304 stainless steel
See load line
curve below
Output Load
Wetted Material
Reverse Polarity
Yes
Protection
Pressure Ranges*+
Environmental Data
Temperature
Operating
-40 to 85˚C (-40 to 185˚ F)
Storage
-40 to 100˚C (-40 to 212˚ F)
Thermal Limits
Compensated Range
0 to 55˚C (30 to 130˚ F)
TC Zero
<±1.5% of FS (2.0% for 316L)
TC Span
<±1.5% of FS (2.0% for 316L)
Other
Gage
psig
Proof
psig
Burst
psig
Pressure
Range Code
0-25
50
250
00025
0-50
100
250
00050
0-100
200
500
00100
0-200
400
1,000
00200
0-500
1,000
2,500
00500
0-1,000
2,000
5,000
01000
0-2,500
5,000
12,500
02500
Shock
0-5,000
10,000
20,000
05000
Vibration
10G Peak, 20 to 2000 Hz
0-7,500
15,000
20,000
07500
EMI/RFI Protection
Yes
0-10,000
20,000
20,000
10000
Rating
IP-66
+
5
Series
43
4
43-A-00500-B-3-L-0-000
Series
Type
Process
Connection
43
X= Special
Hazardous
Locations A= 1/4" MNPT
C= 1/4" BSPP Male
E= 1/2" MNPT
J*= 1/4" FNPT
S*= 1/2" FNPT
X= Special X= Special
X= Special
X= Special
XXX= Special
B= BAR
B= 20mV/V
F= 55 meter cable
K= kg/cm2
G= 1-10V
J= 15ft. cable
1= 316 L
P= psig
1= 10mV/V
K= 8ft. cable
2= Inconel
Insert pressure
range code
from pressure
range chart.
Vacuum = V0000
-14.7psig/-1.01bar
Table 1
Red
Black
White
+V Supply
+V Supply
-V Supply
-V Supply
Output
N/C
Table 1
6
Options
XXXXX=
Special
Output
1-5V
4-20mA
Wetted
Material
Pressure
Unit
* 316L not available For vacuum replace
for FNPT sizes
pressure code.
(Ex. V0500 =
Vacuum to 500 psig)
Output
1-5V
4-20mA
Electrical
Interface
Pressure
Range
Red
Black
White
+V Supply
+V Supply
-V Supply
-V Supply
Output
N/C
Outputs
W= Inches 2= 0.5-4.5V
of H2O
ratiometric
column
3= 1-5V
4= 4-20mA 2 wire
5= 5mV/V
6= 1-6V
L= 2ft. cable w/conduit
M= 4ft. cable w/conduit
N= 6ft. cable w/conduit
P= 10ft. cable w/conduit
T= 25ft. cable
001= Etched
name plate
A10= ±0.10 Accuracy
C01 Calibration 1-9
C0S Cleaned for O2
service
4
Series 44
Series
Intrinsically Safe
44
Features
• Class I Div. 1, Groups C&D Intrinsically Safe
Specifications
Accuracy1
<±0.25% BFSL
Stability (1 year)
±0.25%FS, typ.
Proof Pressure
2X Rated Pressure
Burst Pressure
Wetted Material
17.4 PH S.S. (NACE compatible)
(for other material consult factory)
Pressure Cycles
1
> 100 Million
Case
Output
4-20mA
1-5VDC, 1-6VDC
Excitation
10-28VDC
10-28VDC
5VDC, reg
Output
Impedance
>10k Ohms
Current
Consumption
20mA, typ.
<10mA
<10mA
DC to 1kHz
DC to 1kHz
Output Noise:
-
<2mV RMS
<2mV RMS
Zero Offset
<±1% of FS
<±1% of FS
<±1% of FS
<±1.5% of FS
<±1.5% of FS
10k Ohms, min.
10k Ohms, min.
Yes
No
304 stainless steel
Wetted Material
Electrical Data
Output Load
See load line
curve below
Reverse Polarity
Yes
Protection
Pressure Ranges*+
Environmental Data
Gage
psig
Temperature
Proof
psig
Burst
psig
Pressure
Range Code
Operating
-40 to 85˚C (-40 to 185˚ F)
0-25
50
250
00025
Storage
-40 to 100˚C (-40 to 212˚ F)
0-50
100
250
00050
0-100
200
500
00100
0-200
400
1,000
00200
Thermal Limits
Compensated Range
0 to 55˚C (30 to 130˚ F)
TC Zero
<±1.5% of FS (2.0% for 316L)
0-500
1,000
2,500
00500
TC Span
<±1.5% of FS (2.0% for 316L)
0-1,000
2,000
5,000
01000
0-2,500
5,000
12,500
02500
0-5,000
10,000
20,000
05000
Other
Shock
Vibration
10G Peak, 20 to 2000 Hz
0-7,500
15,000
20,000
07500
EMI/RFI Protection
Yes
0-10,000
20,000
20,000
10000
Rating
IP-66
+
7
Series
44
4
44-A-00500-B-3-B-0-000
Series
Type
Process
Connection
X= Special
44
Intrinsically A= 1/4" MNPT
Safe
B= 1/8" MNPT
C= 1/4" BSPP Male
E= 1/2" MNPT
Pressure
Range
Pressure
Unit
Outputs
Electrical
Interface
Wetted
Material
XXXXX=
Special
X= Special
X= Special
X= Special
X= Special XXX= Special
B= BAR
A= 0-50mV/V
A= 2ft. cable
B= 20mV/V
B= 4ft. cable
1= 316 L
P= psig
G= 1-10V
C= 6ft. cable
2= Inconel
C01 Calibration 1-9
W= Inches
of H2O
column
1= 10mV/V
D= 10ft. cable
2= 0.5-4.5V
ratiometric
E= Mini DIN 43650
F= Packard Metripack
C0S Cleaned for O2
service
Insert pressure
range code
from pressure
range chart.
K= kg/cm
Vacuum = V0000
F= 7/16"-20 UNF Male -14.7psig/-1.01bar
H= 1/8" FNPT
For vacuum replace
J= 1/4" FNPT
pressure code.
S= 1/2" FNPT
(Ex. V0500 =
Vacuum to 500 psig)
2
3= 1-5V
4= 4-20mA 2 wire
J= 15ft. cable
5= 5mV/V
K= 8ft. cable
6= 1-6V
T= 25ft. cable
Options
7= 1-5V adj.
8= 4-20mA adj.
9= 1-6V adj.
Class I, Div. 1, Groups C, D
Hazardous Location
The transducers listed below are designed for installation in a Class I, Division 1, Groups C and D,
Division 1 hazardous location when connected to Associated Apparatus as described in note 1.
Nonhazardous Location
Entity Parameters
Vmax = 28Vdc
Imax = 175mA Imax is the total current available from the Associated
C1 = 0.44uf
Apparatus under any condition.
L1 = 0
Hazardous Location
Red
Black
44X0 mV
output
4
/PA
Green
White
Intrinsic Safety
Barrier
2
signal +
signal -
PA/
3
4
/PA
Intrinsic Safety
Barrier
Notes:
1. Associated Apparatus shall provide intrinsically safe connections which meet the following parameters.
Voc or Vt £ Vmax
Ca ≥ C1 + Cleads
Isc or It £ Imax
La ≥ L1 + Lleads
PA/
Ground Bus
Figure 1: Wiring diagram for
4-wire, mV output
2. Control Room aparatus shall not generate in excess of 250V (Umax).
I. S. ground
conductor
3. Installation should be in accordance with Article 504 in the National Electrical Code, ANSI/NFPA 70.
Table 1
Hazardous Location
44X0
4-20 mA
output
2
excitation +
excitation -
3
Red
Black
supply voltage
3
4
/PA
Intrinsic Safety
Barrier
2
PA/
RL
Ground Bus
2-wire, 4-20mA output
44X0
Voltage
output
Red
White
Black
3-wire, Voltage output
8
supply
common
I. S. ground
conductor
Hazardous Location
supply voltage
signal
common
3
4
/PA
Intrinsic Safety
Barrier
Output
1-5V
4-20mA
2
PA/
Ground Bus
common
I. S. ground
conductor
analog
input
Pin 3
Pin 2
Pin 1
+V Supply
+V Supply
-V Supply
-V Supply
Output
N/C
4
Series 45
Series
Stainless Steel Tank Level Sensor
45
Features
• Ranges up to 100 psig
Specifications
Accuracy1
<±0.5% BFSL (for higher accuracy,
please consult factory)
Stability (1 year)
±0.25%FS, typ.
Over Range Pressure 2X Rated Pressure
Burst Pressure
5X or 1250 psig, whichever is less
Pressure Cycles
> 50 Million
Agency Approval
UL 508
Electrical Data
Output
4-20mA
1-5VDC
Excitation
10-28VDC, typ.
10-28VDC, typ.
Output Impedance
<10k Ohms
<100 Ohms, nom.
Current Consumption
20mA, typ.
<10mA
Bandwidth (-3dB)
DC to 250Hz
DC to 1kHz
Output Noise
-
<2mV RMS
Wetted Material
Zero Offset
<±1% of FS
<±1% of FS
Span Tolerance
<±2% of FS
<±1.5% of FS
Output Load
See load line
curve below
10k Ohms, min.
Reverse Polarity
Yes
Yes
1
Case
304 stainless steel
Environmental Data
Temperature
Operating
-40 to 85˚C (-40 to 185˚ F)
Storage
-40 to 100˚C (-40 to 212˚ F)
Thermal Limits
Compensated Range
0 to 55˚C (-30 to 130˚ F)
Temp. Comp. Zero
<±1.5% of FS (<±2.0% for 316L)
Temp. Comp. Span
<±1.5% of FS (<±2.0% for 316L)
Other
Shock
Vibration
10G Peak, 20 to 2000 Hz
Rating
IP-68
EMI/RFI Protection
Yes
Pressure Ranges*
Gage
psig
Proof
psig
Burst
psig
Pressure
Range Code
0-15
30
125
00015
0-25
50
125
00025
0-30
60
150
00030
0-100
200
500
00100
* Typical Ranges. All ranges between 0-15 psig and 0-100 psig
9
Series
45
4
45-L-00100-B-3-C-1-000
Series
Type
Process
Connection
Pressure
Range
Pressure
Unit
Outputs
Electrical
Interface
Wetted
Material
Options
45
Standard
X= Special
XXXXX=
Special
X= Special
X= Special
X= Special
X= Special
XXX= Special
B= BAR
3= 1-5V
C= 6ft. cable
1= 316 L
000= No options
4= 4-20mA
D= 10ft. cable
L= Cone Front
Insert pressure
range code
from pressure
range chart.
K= kg/cm
2
P= psig
J= 20ft. cable
K= 25ft. cable
L= 35ft. cable
M= 50ft. cable
N= 100ft. cable
P= 150ft. cable
Hytrel cable available,
consult ASCO
Line Impedance
4-20mA Load line Curve
Table 1
Output
Red
Black
+V Supply -V Supply
Output
4-20mA
+V Supply -V Supply
N/C
Supply Voltage
Jacketed Cable,
Length Specified
per Order,
0.30 dia.
0.88
4.43
Shield
Red (see table 1)
White (see table 1)
Black (see table 1)
Vent Tube
10
White
1-5V
4
Series 46
Series
Stainless Steel Explosionproof Pressure Sensor
46
Features
• Rugged design survives harsh environments.
Specifications
Accuracy1
<±0.25% BFSL
Stability (1 year)
±0.25% FS, typ.
Proof Pressure
2X Rated Pressure
Burst Pressure
Pressure Cycles
> 100 Million
CSA 30 (UL 1203) Class 1, Div. 1
Explosionproof, Groups A,B,C & D
Electrical Data
Output
4-20mA
1-5V, 1-6V
Excitation
10-28VDC, typ.
10-28VDC
Output Impedance
<10k Ohms
<100 Ohms, nom.
Current Consumption
20mA, typ.
<10mA
Bandwidth (-3dB)
DC to 250Hz
DC to 1kHz
Case
Output Noise
-
<2mV RMS
Zero Offset
<±1% of FS
<±1% of FS
Wetted Material
Span Tolerance
<±2% of FS
<±1.5% of FS
Output Load
See load line
curve below
10k Ohms, min.
Reverse Polarity
Yes
Yes
Agency Approval
1
304 stainless steel
Environmental Data
Temperature
Operating
Storage
Thermal Limits
Compensated Range
Temp. Comp. Zero
Temp. Comp. Span
Other
Shock
Vibration
EMI/RFI Protection
Rating
-40 to 85˚C (-40 to 185˚F)
-40 to 100˚C (-40 to 212˚F)
Pressure Ranges*
Gage
psig
Proof
psig
Burst
psig
Pressure
Range Code
0-50
100
250
00050
0-100
200
500
00100
0-200
400
1,000
00200
0-250
500
1,250
00250
0-500
1,000
2,500
00500
10G Peak, 20 to 2400 Hz
0-1,000
2,000
5,000
01000
0-2,000
4,000
10,000
02000
Yes
0-2,500
5,000
12,500
02500
IP-66
0-5,000
10,000
20,000
05000
0-7,500
15,000
20,000
07500
0-10,000
20,000
20,000
10000
0 to 55˚C (30 to 130˚ F)
<±1.5% of FS
<±1.5% of FS
11
Series
46
4
46-A-00500-P-3-U-0-000
Series
Type
Process
Connection
Pressure
Range
Pressure
Unit
Outputs
Electrical
Interface
Wetted
Material
Options
46
Standard
X= Special
XXXXX=
Special
X= Special
X= Special
X= Special
X= Special
XXX= Special
B= BAR
3= 1-5V*
T= 2ft. cable, 18AWG wire 0= 17.4 PH
K= kg/cm
4= 4-20mA**
U= 4ft. cable, 18AWG wire 1= 316L
P= psig
6= 1-6V
A= 1/4" MNPT
E= 1/2" MNPT
J= 1/4" FNPT
Insert pressure
range code
from pressure
range chart.
2
000= No options
2= Inconel 718
* 3 wire case
connection
** 2 wire 100p
powered and
case conneciton
Line Impedance
Table 1
Output
White
Black
1-5V
+V Supply -V Supply
Output
Common
+V Supply -V Supply
Not Used
Common
Plasma TIG welds
offering
Continuous
Air Tight Seal
Color Coded
Hookup Wires,
2 ft., 18 ga.
1/4 MNPT
1/2 MNPT
7/8" Hex
Red (see table 1)
White (see table 1)
Black (see table 1)
Green, Connected
to housing
(see table 1)
Green
4-20mA
3.64
Supply Voltage
12
Red
4
Series 47
Series
47
Stainless Steel High Accuracy Pressure Sensor
Features
• Low static and thermal errors
• High accuracy
Specifications
Electrical Data
Accuracy1
<±0.25% BFSL (option of ±0.1%)
Output
4-20mA
Voltage
(3 or 4 wire)
Frequency
(1-6kHz)
5VDC
Stability (1 year)
±0.25%FS, typ.
Excitation
10-28VDC
10-28VDC
10-28VDC
0-50mV
-
<100 Ohms
nom.
10K, pull up
1100 Ohms
nom.
<10mA
<15mA
<5mA
DC to 250Hz
DC to 5kHz
min.
*Over Range Protection 2X Rated Pressure
*Burst Pressure
Pressure Cycles
> 100 Million
1
Output
Impedance
Current
20mA max.
Consumption
Bandwidth
(-3dB)
DC to 250Hz DC to 1kHz
Output Noise NA
<2mV RMS
<2mV RMS
NA
Case
Zero Offset
<±1% of FS
<±1% of FS
<±1% of FS
<±2% of FS
Span
Tolerance
<±2% of FS
<±1.5% of FS <±1.5% of FS <±2% of FS
Output Load
See load
line curve
10k Ohms
min.
10k Ohms
min.
>1M Ohms
Reverse
Polarity
Protection
Yes
Yes
Yes
NA
304 stainless steel
Wetted Material
Environmental Data
Temperature
Operating
Storage
Thermal Limits
-40 to 85˚C (-40 to 185˚F)
-40 to 125˚C (-40 to 250˚F)
Compensated Range
0 to 55˚C (30 to 130˚ F)
Temp. Comp. Zero
<±1.5% of FS (±2.0% for 316L)
Temp. Comp. Span
<±1.5% of FS (±2.0% for 316L)
Other
Shock
Vibration
EMI/RFI Protection
Rating
10G Peak, 20 to 2400 Hz
Yes
IP-66
Pressure Ranges*+
Gage
psig
0-15
0-25
0-50
0-100
0-200
0-500
0-1,000
0-2,500
0-5,000
0-7,500
0-10,000
Proof
psig
30
50
100
200
400
1,000
2,000
5,000
10,000
15,000
20,000
Burst
psig
200
250
250
500
1,000
2,500
5,000
12,500
20,000
20,000
20,000
Pressure
Range Code
00015
00025
00050
00100
00200
00500
01000
02500
05000
07500
10000
+
13
Series
47
4
47-A-00500-P-3-B-0-000
Series
Type
Process
Connection
Pressure
Range
Pressure
Unit
Outputs
Electrical
Interface
Wetted
Material
Options
47
Standard
X= Special
XXXXX=
Special
X= Special
X= Special
X= Special
X= Special
XXX= Special
B= BAR
2= 0-5V (3 wire)
A= 2ft. cable
0= 17.4 PH
000= No options
K= kg/cm2
3= 1-5V
B= 4ft. cable
1= 316L
P= psig
4= 4-20mA
C= 6ft. cable
5= 0-10V (3 wire)
D= 10ft. cable
6= 1-6kHz
E= Mini DIN 43650
7= 0-5V (4 wire)
F= Bendix 6 pin
connector
A= 1/4" MNPT
Insert pressure
range code
F= 7/16" -20 UNF from pressure
range chart.
Male
B= 1/8" MNPT
Vacuum = V0000
-14.7psig/-1.01bar
For vacuum replace
pressure code.
(Ex. V0500 =
Vacuum to 500 psig)
8= 0-10V (4 wire)
Electrical Connections - Cable Only
Cable
Output Type
Green
mV, 0-5V, 0-10V
+S
-V
+V
-S
(Output) (Supply) (Supply) (Output)
Red
White
0.5-4.5V, 1-5V,1-6V
S
-V
+V
N/C
(Output) (Supply) (Supply)
4-20mA
N/C
-V
+V
N/C
(Supply) (Supply)
Mini DIN 43650
Pin 2
Pin 3
Jacketed Cable,
0.177 dia.
Output Type
Pin 1
mV, 0-5V (4-wire),
0-10V(4-wire)
+S
-V
+V
-S
(Output) (Supply) (Supply) (Output)
Wide Pin
Line Impedance
Black
0-5V (3-wire), 1-5V, S
-V
+V
N/C
0-10V(3-wire)
(Output) (Supply) (Supply)
4-20mA
N/C
Shrink Tubing,
3/8" dia.
Supply Voltage
-V
+V
N/C
(Supply) (Supply)
1.0
2.61
6-pin Bayonet (Bendix)
Output Type
14
Pin A
Pin B
Pin C
Pin D
Pin E
Pin F
mV, 0-5V, 0-10V
+V
+Signal -Signal
-V
-V
N/C
1-5V, 1-6V, 1-10V
+V
Output
N/C
-V
-V
N/C
4-20 mA
+V
-V
N/C
N/C
N/C
N/C
4-20 mA
+V
-V
N/C
N/C
Shunt
Shunt
0.40
0.875" HEX
1/4" MNPT Thread
4
Series 50
Series
50
Stainless Steel, Wet/Wet Differential Pressure Sensor
Features
• Compact and rugged design
• No internal fluid filled cavities
• No Internal o-rings
• Low static and thermal errors
• EMI/RFI protection to 100V/m
Specifications
Line Pressure
Measurement
Range
Proof Pressure
0-100 to 1,000 psig
(0-7, 0-17, 0-35 and 0-70 bar)
20% of line pressure, minimum
Rated line pressure on either P1 or P2
Electrical Data
Burst Pressure
5X or 2000 psi, whichever is less
Output
4-20mA
Voltage (1-5V, 1-6V) 0.5-4.5V ratiometric
Accuracy1
<±0.3% BFSL
Excitation
10-30VDC
10-30VDC
5VDC, reg
Pressure Cycles
> 10 Million
Output
Impedance
-
<100 Ohms, nom.
<100 Ohms, nom.
Current
Consumption
25mA
<10mA
<10mA
1
Bandwith (-3dB): DC to 250 Hz DC to 1kHz
DC to 1kHz
Output Noise:
0-800 Ohms
<2mV RMS
@ 10-28VDC
<2mV RMS
Zero Offset
<±1% of FS
<±1% of FS
<±1% of FS
Wetted Material
<±1.5% of FS
<±1.5% of FS
10k Ohms, min.
10k Ohms, min.
Yes
No
Case
Pressure Port
304 stainless steel
1/8" NPT
Output Load
See load line
curve below
Reverse Polarity
Yes
Protection
Environmental Data
Temperature
Operating
Storage
Thermal Limits
Compensated Range
Pressure Ranges*
-40 to 85˚C (-40 to 185˚F)
-40 to 100˚C (-40 to 212˚F)
0 to 55˚C (30 to 130˚ F)
TC Zero
<±1.5% of FS
TC Span
<±1.5% of FS
Other
Shock
Vibration
EMI/RFI Protection
10G Peak, 20 to 2000 Hz
Yes
Rating
IP-66
DP
Line
Burst
Range
Pressure Pressure Measurement
Code
(psig), min. (psig), max. (psig)
0-30
100
500
0030
0-60
0-150
0-300
250
500
1,000
1,250
2,000
2,000
0060
0150
0300
Line
Code
0100
0200
0500
1000
* Typical Ranges. All ranges between 0-30 psig and 0-300 psig
15
Series
50
4
50-H-0500-P-3-B-0-0000
Series
Type
Process
Connection
50
X= Special
Standard
H= 1/8" FNPT
Line Pressure
Range
Pressure
Unit
Outputs
Electrical
Interface
Wetted
Material
Measurement
Range
XXXXX=
Special
X= Special
X= Special
X= Special
X= Special
B= BAR
A= 2ft. cable
0= 17.4 PH
Insert pressure
range code
from pressure
range chart.
K= kg/cm2
2= 0.5-4.5V
ratiometric
B= 4ft. cable
1= 316L with
Parylene-C
coating
(no options)
Insert 4 digit
measurement
code from chart
on specifications
page.
P= psig
3= 1-5V
4= 4-20mA
6= 1-6V
Line Impedance
Supply Voltage
Table 1
Output
Red
Black
White
Green
1-5V
+V Supply -V Supply
Output
Common
4-20mA
+V Supply -V Supply
Not Used
Common
3/4" (19mm) HEX
2.2
!/8 FNPT
Both Ends
2.1
16
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your application needs. Visit us online at www.ascovalve.com to view our full
line of products.
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Devices for pressure and temperature monitoring.
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Compact valve solutions for commercial applications.
Canada
Tel 519-758-2700
Australia
Tel (61) 2-9-451-7077
Brazil
Tel (55) 11-4208-1700
Germany
Tel (49)-7237-9960
United Kingdom
Tel (44) 1695-713600
China
Tel (852) 2-343-8580
Mexico
Tel (52) 55-3640-0200
France
Tel (33) 1-47-14-32-00
Singapore
Tel (65) 6556-1100
Japan
Tel (81) 798-65-6361
18
A S C O Va l v e , I n c . • 8 0 0 . 9 7 2 . 2 7 2 6 • w w w. a s c o v a l v e . c o m
V7366 R5
www.eci.co
Sede Bogotá D.C, Colombia
Transversal 18Bis No 38-41
Calle 23 No 116-31 Bod. 32
Tel: +57(1) 3275151
Fax: +57(1) 2884838 / 2885589
[email protected]
[email protected]
Sede Quito, Ecuador
Suiza 361 y República de El Salvador
Ed. Euro, Oficina 7B
Tel: +593(2) 600 6882
Fax: +593(2) 333 2567

INTERRUPTORES Y SENSORES DE PRESION Y TEMPERATURA

Transcription

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