901-106 D SLP.qxp

SLP Series
Ultra-slim user-friendly devices for protecting electronic equipment and systems against surges on signal and I/O cabling
G
Surge protection for two loops per SLP (or one
4-wire circuit)
G
Range of ATEX Certified intrinsically safe surge
protectors
G
Space-saving design; easy installation
G
Multi-stage hybrid protection circuitry – 20kA
maximum surge current
G
Range of voltage ratings -- to suit all process
I/O applications
G
Designed for high bandwidth, low resistance
applications
The SLP Series is a range of surge protection devices combining high packing
densities, application versatility, proven
hybrid circuitry and simple installation –
features which make the series the
most cost effective surge protection
solution for process control equipment
systems and communications networks.
The multi-stage hybrid surge protection
network at the heart of the SLP uses a
combination of solid state electronics
and a gas filled discharge tube (GDT) to
provide surge protection up to 20kA.
This impressive surge protection circuit
is designed to exhibit exceptionally low
line resistance and adds only a tiny voltage drop to the circuit.
In operation, the SLP device does not
adversely affect the performance or
operation of the loop or combined
equipment. The device allows signals to
pass with very little attenuation while
diverting surge currents safely to earth
and clamping output voltages to safe levels.
provides the essential high-integrity
earth connection.
Fully automatic in operation, SLP devices
react immediatley to make sure that
equipment is never exposed to damaging
surges between lines or the lines and
earth. Reacting instantaneously, the SLP
redirects surges safely to earth and then
resets automatically.
A 10 Year ‘No Fuss’ warranty is available as standard for the SLP so if a correctly connected device should fail for
any reason, simply return it for a free
replacement.
The versatile SLP series design considers
the need for high packing densities and
has a product combining protection for
two process loops into one case. Each
module provides full hybrid surge protection for two process loops.
‘Top-hat’ (T-section) DIN rail is generally
suitable for mounting SLP modules
although for adverse environments, a
specially-plated version is available from
MTL Surge Technologies.
For higher bandwidth applications, the SLP
series has been developed to meet the
demands of today’s highest speed communication systems.
One simple manual operation
clamps modules securely
onto DIN rail, which
automatically
Data & Signal
Protection
Specification
(all figures typical at 25°C unless otherwise stated)
Model
Maximum surge current
20kA (8/20μs waveform) per line
Leakage Current
<1μA @ working voltage
Maximum rated load current
1.50A
Loop resistance
2 Ohm
Capacitance
Line - Line - 60pF
Bandwidth
-0.1db @9kHz - 37MHz
-3dB @50MHz
Response time
<1ns
Ambient temperature
–40°C to +80°C (working)
–40°F to +176°F (working)
–40°C to +80°C (storage)
–40°F to +176°F (storage)
Humidity
5 to 95% RH (non-condensing)
Terminals
2.5mm2 (12 AWG)
Electrical connections
Plug/header screw terminal strip
Mounting
T-section DIN-rail
(35 x 15mm rail)
Weight
5oz (140g approximately)
Case flammability
UL94-V0
EMC compliance
BS EN 60950:1992
BS EN 61000-6-2:1999
BS EN 61010-1:1993
Nominal voltage
Un
Uc
In
Rated voltage (MCOV)
Nominal current
Nominal discharge current (8/20µs)
SLP07D
SLP16D
SLP32D
7V
16V
24V
8V
18V
32V
1.50A
1.50A
1.50A
Lightning impulse current (10/350µs)
isn
Imax
Iimp
2.5kA
2.5kA
Residual voltage @ isn
Voltage protection level @ 1kV/µs
Up
Up
10V
23V
40V
<8V
<18V
<38V
Bandwidth
fG
C
50MHz
50MHz
50MHz
Capitance
60pF
60pF
60pF
Series resistance
R
1.0
1.0
1.0
Max discharge current (8/20µs)
3kA
3kA
3kA
20kA
20kA
20kA
2.5kA
Operating Temperature Range
Category tested
-40°C to +80°C
A2, B2, C1, C2, C3, D1
Overstressed fault mode in=3kA
Impulse durability (8/20µs)
22kA
22kA
22kA
10kA
10kA
10kA
Degree of protection
IP20
AC durability
1Arms, 5T
80kPa - 160kPa
5% - 95% RH
Service conditions
Tested in accordance to IEC 61643-21.
Loop 1
Loop 2
Figure 1 Dimensions
Figure 2 Connection details
To order specify Order by module, as listed in the
specification table.
Note: In accordance with our policy of continuous improvement, we reserve the right to change the product’s specification without notice.
Figure 3 Installation
Approvals
WWW: www.mtlsurge.com
A member of the MTL Instruments Group plc
Country
(Authority)
Standard
Certificate/
File No.
Approved for
ATEX
BS EN 60950:1992
BS EN 61000-6-2:1999
BS EN 61010-1:1993
ATEX0377X
EEx N IIC T4
SLP07D, SLP16D, SLP32D
EN50014:1997-A1 & A2 Baseefa 04
EN50020:2002
ATEX0303X
EN50284:1999
EEx ia IIC T4
SLP07D, SLP16D, SLP32D
EC [Baseefa]
Product
901-106 Rev E 1/9/07
MTL Surge Technologies
Power Court, Luton, Bedfordshire,
England LU1 3JJ
Tel: +44 (0)1582 723633
Fax: +44 (0)1582 422283
E-mail: [email protected]
SD Series
Ultra-slim user-friendly devices for protecting electronic
equipment and systems against surges on signal and I/O cabling
G
Range of ATEX Certified intrinsically safe surge
protectors
G
Ultra-slim space-saving design; easy installation
G
Multistage hybrid protection circuitry – 10kA
maximum surge current
G
Range of voltage ratings -- to suit all process I/O
applications
G
High bandwidth, low resistance, RTD, PSTN and
3-wire transmitter versions available
The SD Series is a range of surge
protection devices combining unparalleled
packing densities, application versatility,
proven reliable hybrid circuitry, simple
installation and optional ‘loop disconnect’
facilities – features which make the series
the ultimate surge protection solution for
process equipment, I/O systems and
communications networks.
The exceptionally high packing densities
are the consequence of an ultra slim
‘footprint’ for individual modules which can
thus ‘double-up’ as feedback terminals.
Each module provides full hybrid surge
protection for 2 and 3 wire loop
protection.
Modules with a comprehensive range of
voltage ratings cover all process related
signals such as RTDs, THCs, 4 to 20mA
loops, telemetry outstations, shut-down
systems and fire and gas detectors.
Optional ‘loop disconnect’, is a feature
which allows commissioning and
maintenance to be carried out without
removal of the surge protection device.
This facility is provided by the SD07, SD16,
SD32 and SD55 units. In addition, a third
connection on the field and safe side of
the protector is provided in order to
terminate screens safely.
For three wire applications the specially
(Resistance
designed
SDRTD
Temperature Detector) and the SD32T3,
(for separately powered 4-20mA loops)
provide full 3-wire protection in a single
compact unit. The recommended choice
for the protection of 3-wire pressure
transducers on low power circuits is the
SD07R3.
Telephone networks can be protected by
the SDPSTN.
One simple manual operation clamps
modules securely onto DIN rail, which
automatically provides the essential highintegrity earth connection.
‘Top-hat’ (T-section) DIN rail is generally
suitable for mounting SD modules
although for adverse environments, a
specially-plated version is available from
MTL
Surge
Technologies.
A
comprehensive range of mounting and
earthing accessories can also be
supplied, see page 7 for further
details.
For higher bandwidth applications, the
SDR series has been developed to meet
the demands of today’s highest speed
communication systems.
120V and 240V AC versions
are available for I/O and
power supplies up to
three Amps of load
current.
Data & Signal
Protection
Guide to applications and selection
The SD Series of SPDs includes models for almost all possible applications operating at voltages up to 250V ac. The optional
‘fuse/disconnect’ package provides both fused protection against fault currents and a convenient method of isolating field circuitry from protected circuitry without needing additional disconnect terminals. The standard fuse (which is replaceable) is rated
250mA with 50mA fuses also being available by special request. Where only the disconnect feature is required, solid links can
be used.
As an example, this feature is of particular value in applications in which an SPD is used with a bulk power supply feeding multiple loops. The individual module fuse prevents a fault or follow on current on one loop disrupting the power supply to the others.
Also, loops can be removed from the circuit for maintenance reasons or added without needing additional disconnect terminals.
The following guide to selection suggests the most suitable SDs for a number of specific applications. For technical information,
see the detailed specifications on the back page of this publication (some field circuit protection is shown for completeness).
FIELD CIRCUIT
Analogue inputs
(high-level)
2-wire transmitters, 4-20mA, conventional and
smart
The SPDs recommended for use with ‘conventional’
and ‘smart’ 4-20mA transmitters (fed by a wellregulated supply) are the SD32 and SD55, the
choice depending upon the maximum working
voltage of the system (32V and 55V respectively). The diagram illustrates a prime example of an application for which the fuse/disconnect facility is particularly useful, however,
both models are available in ‘X’ versions without the optional fuse/disconnect feature.
2-wire transmitters
Analogue inputs
(low-level)
RTDs
These applications are best served using the
SDRTD. For optimum accuracy, the energising
current should be chosen to ensure the voltage
across the RTD does not exceed 1V over the full
measurement range. When using a PT100
device, we recommend an energising current of
1mA.
3 wire RTDs
Photocells, THCs, mV sources and turbine
flowmeters
The SD07 or SD16 (depending upon the
operational voltage) are the favoured choices
for this application. SD07X and SD16X are also
suitable.
photocells, THCs,
mV sources and
turbine flowmeters
2
PROTECTED CIRCUIT
FIELD CIRCUIT
PROTECTED CIRCUIT
Analogue outputs
Controller outputs (I/P converters)
For this application, the recommendations are
the SD16, SD32 and SD55 (and the equivalent
‘X’ versions), the final choice depending upon the
operating voltage.
Controller outputs
(I/P converters)
Digital (on/off) inputs
Switches
Suitable SPDs for switches include the SD07,
SD16, SD32 and SD55 modules – the choice
depending upon the operating voltage of the system. The ‘X’ versions of these are also suitable.
Switches
Digital (on/off) outputs
Alarms, LEDs, solenoid valves, etc
The recommended choice for this application is
the SD32 or SD32X.
Alarms, LEDs,
solenoid valves, etc.
Telemetry (PSTN)
Telemetry outstations
The SDPSTN has been designed specifically for
the protection of signals transmitted on public
switched telephone networks.
Telecom line
AC supplied equipment
PLC, I/O systems
For systems on 110-120V ac, the SD150X is the
recommended choice and for 220-240V ac systems, the SD275X is recommended.
PLC, I/O systems
3
Transmitter and sensor protection
Transmitters and sensors are widely used in highly exposed areas and where lightning damage is common. In many cases, the
ideal solution for 2-wire transmitters or sensors is the TP48 which mounts directly onto the transmitter housing via spare cable
entries. Where these entries are not available or 3-wire devices are used, the compact design and simple installation of the SD
series makes it the obvious choice for transmitter protection.
The SDs within the junction box should be installed no further than one metre away but as close as possible to the sensor or
transmitter they are protecting. A bond is required from the general mass of steelwork to the sensor or transmitter housing
either using a flat short braid or a cable of at least 4mm2 cross sectional area. In most instances this bond is automatically made
by fixing the metallic transmitter housing to the plant structure. This bond ensures the voltage difference between the signal
conductors and the transmitter housing is below the transmitter’s insulation rating. Please note that the transmitters or
sensors are connected to the ‘Protected Equipment’ terminals of the SD and not the ‘Field Cables’.
SD PROTECTED FIELD CIRCUIT
2-wire transmitters or sensors
4-20mA transmitters, conventional and
smart
Where the TP48 is not an acceptable solution,
either because of technical suitability or
difficulties in mounting, the SD16X, SD32X and
SD55X are an excellent alternative.
2-wire transmitter or sensor
3-wire transmitters or sensors
Vibration Sensors and 4-20mA loop process
control systems invariably require three
wire connections, when powered from an
external source.
This may be accomplished in one unit by using
the SD32T3 three terminal Surge Protection
Device (SPD).
Because the SD32T3 protects all three
conductors within the same unit, higher
protection is achieved, as the SPD hybrid
circuitry is common to all three wires.
The SD07R3 is available for the protection of 3wire pressure transducers on low power
circuits.
3-wire transmitter or sensor
4-wire transmitters or sensors
Flow meters, level detectors, etc.
4-wire systems such as level detectors require
two SDs, one for the supply and the other for
the transmitter output. Generally the voltages
across the pairs are similar and so the
recommended choice would be a pair of
SD16X, SD32X or SD55Xs. However, mains
powered transmitters should be protected with
an SD150X or 275X (depending upon supply
voltage) for the supply inputs.
Loadcells are catered for by MTL Surge
Technologies’ LC30 which is suitable for both 4
and 6-wire load cells.
4
4-wire transmitter or sensor
TO HOST CIRCUIT
Communication systems protection
High speed data links between buildings or one part of a plant to another have become more common with the widespread use
of smart transmitters and the increase in unmanned installations. The SD series has an SPD suitable for all process I/O
applications with a choice of low resistance units, high bandwidth and a variety of voltage variants. The SDR series has been
specially designed to meet the requirements for high speed data links with an extremely high bandwidth.
TP PROTECTED
FIELD CIRCUIT
SD PROTECTED HOST CIRCUIT
Communication systems
RS232, RS422, RS485
The recommended choice for these applications is
the SD16R or SD32R depending on the maximum
driver signal.
RS232, RS422, RS485
Bus powered systems
There are a variety of bus powered systems
specially designed for the process industry. The
ideal surge protection device for these systems
is the SD32R as it has a very high bandwidth and
a modest in-line resistance.
PROTECTED FIELD CIRCUIT
SD PROTECTED HOST CIRCUIT
Bus powered systems
Table 1
Typical Applications
Table 1 shows suitable SD devices for different
applications. In some applications alternative
devices may be used, for example, where lower
in-line resistance or a higher voltage power
supply is used.
Telematic have operationally tested the
recommended SD series with representative
highways listed but no formal approval for their
use in systems by the respective bodies has
been sought.
Application
Allen Bradley Data Highway Plus
Preferred SPD
Alternative
SD16R
Foundation Fieldbus
31.25kbits/s voltage mode
SD32R
1.0/2.5 Mbits/s
SD55R
HART
SD32X
SD32, SD32R
Honeywell DE
SD32X
SD32, SD32R
LonWorks
FFT-10
SD32R
LPT-10
SD55R
TP-78
SD07R
IS78†
SD32R
Modbus ‘& Modbus Plus (RS485)
SD16R
PROFIBUS
DP
PA (IEC 1158, 31.25 kbits/s)
SD32R
FP32
RS232
SD16
RS422
SD07R
RS423
SD07R
RS485
SD07R
WorldRP (IEC 1158)
SD32R
SD16X
31.25 kbits/s voltage mode
1.0/2.5 Mbits/s
SD55R
5
Hazardous area applications
Zone 0/Zone 1
Installation
The dangers from lightning induced sparking in
Zone 0 are considered real enough to require
preventative measures. IEC 60079-14 (199612) Electrical apparatus for explosive gas
atmospheres Part 14: Electrical installations in
hazardous areas (other than mines) stresses
the importance of SPDs in hazardous areas. An
outdoor installation where there is a high
likelihood of both lightning induced transients
and combustible gases requires the installation
of SPDs to prevent possible ignition of the
gases. Areas seen particularly at risk include
flammable liquid storage tanks, effluent
treatment plants, distillation columns in
petrochemical works and gas pipelines.
Positioning
The SDs should be mounted on the field wiring side to ensure that any surges entering from the field
do not damage any intrinsically safe barriers or galvanic isolators in the system. The SDs and IS
interfaces should be mounted close to each other but on separate DIN rails in order to maintain the
required 50mm clearance between safe area and hazardous area terminals.
SPDs for transmitter protection should be
installed in Zone 1 but sufficiently close to the
Zone 0 boundary to prevent high voltages
entering Zone 0. The distance from the SPD
to Zone 0 should be less than one metre
where possible. However, in practice the SPD
would normally be mounted on the transmitter
or sensor housing which usually lies in Zone 1
and is very close to Zone 0. Because there is
only a very small free volume, the SD Series is
suitable for mounting in flameproof or
explosion proof enclosures.
Zone 2
The SD series is suitable for protecting electrical
circuits in Division 2, Zone 2 and can be used
without affecting the safety aspects of the circuit.
Non-incendive (low-current) circuits can be
protected using any SD series unit mounted in
either the safe or hazardous area including those
with the fuse disconnect facility. Non arcing (high
current) circuits can also be protected except
that SPDs with the fuse disconnect facility may
only be mounted in the safe area. For use in
these circuits the units must be mounted in a
suitable enclosure, normally the minimum
requirements are IP54 and 7Nm resistance to
impact. The SD series is self certified by
Telematic Ltd as being suitable for this purpose.
Certification
Introducing surge protection into Intrinsically
Safe (IS) circuits is trouble free as long as the
current and power parameters are not
exceeded. In the SD Series, the SD**X, SD**R,
SD**R3, SDRTD and SD**T3 all have ATEX
certification for use in IS circuits located in
Zones 0, 1 or 2. The certification parameters
for the SD**X and SD**T3 are:
EEx ia IIC T4, Li = 0.22mH
Ii = 260mA for Ui up to 20V
Ii = 175mA for Ui up to 26V
Ii = 140mA for Ui up to 28V
Ii = 65mA for Ui up to 60V
The certification parameters for the SD**R,
SD**R3 and SDRTD are:
EEx ia IIC T4, Li = 0
Ii = 260mA for Ui up to 60V
The power rating for each of the above is
dependent on the table shown below.
Pi = 1W (–30°C to +75°C)
Pi = 1.2W (–30°C to +60°C)
Pi = 1.3W (–30°C to +40°C)
6
The SD** Series are classifed as simple
apparatus and are intended for use in Zone 2 or
safe areas only, because their fuses are not fully
encapsulated.
Earthing
The recommended earthing for field mounted devices has been illustrated previously but it is the
earthing at the control panel that is more critical as there are usually a number of earthing
systems, each with their own requirements. The earthing system illustrated here replaces the
instrument 0V bond, the control system PSU bond and the IS earth with one single earth
connection to meet all the design requirements and give the most effective protection against the
effects of lightning induced surges.
SD Series mounting kits and accessories
The SD Series has a full range of mounting kits and accessories to simplify installation and tagging of individual loops. Insulating
spacers (ISP7000) are available to allow mounting of the units onto backplanes without compromising correct earthing practice.
These are placed at regular intervals along the rail or at each end as required. Earth connections can be made to the DIN rail
via the earth terminal (ETL7000). Weatherproof enclosures are also available with all the necessary mounting accessories to
install the SD series surge protection devices.
Two tagging systems are available. One consists of tagging strips (TAG57) with labels (TGL57) mounted on posts (IMB57) at
each end of a row of surge protection devices (SPDs). The other consists of separate tagging identifiers (BRI7000) mounted on
the tops of individual SPDs. Both methods can be used conjointly. Replaceable fuses or solid links are available in packs of 5 (SDF25, SD-F05 and SD-LNK).
Mounting accessories
ISP7000
Insulating spacer
THR2
Standard DIN rail, 35mm x 7.5mm
THR7000
T-section DIN rail, specially nickel plated,
35mm x 7.5mm, 1m length
Earthing/earth rail accessories
ETL7000
Earth terminal, DIN rail mounted
IMB57
Insulated mounting block (two needed)
ERB57S
Earth rail bracket, straight
ERB57O
Earth rail bracket, offset
ERL7
Earth rail, 1m length
ETM7
Earth terminal, pack of 50
Tagging accessories
TAG57
Tagging strip, 1m length
TGL57
Tagging strip labels, set of 10 x 0.5m
BRI7000
Barrier identifier
BIL7000
Barrier indentification labels, sheet of 120
BIL7000L
Barrier identification labels, A4 sheet of 126
Enclosures
DX070
Enclosure for up to 9 x SD series SPDs
DX170
Enclosure for up to 22 x SD series SPDs
DX430
Enclosure for up to 58 x SD series SPDs
Accessories (replacement)
SD-F25
Replaceable fuse pack - 250mA standard
(available in packs of 5)
SD-F05
Replaceable fuse pack - 50mA special
(available in packs of 5)
SD-LNK
Solid Link (available in packs of 5)
DIMENSIONS (mm)
7
Specification
(all figures typical at 25°C unless otherwise stated)
Model
Protection
Full hybrid line to line
Each line to screen/ground
Max. discharge surge current (Imax )
(Vdc)
(8/20µs)
10kA
6.5kA (SD150X and SD275X only)
Max. discharge surge current (i sn )
(10/350µs)
2.5kA
1.0kA (SD150X and SD275X only)
Response time
<1ns
RTD resistance range (SDRTD)
10 to 1500Ω
Degradation accuracy (SDRTD at 1mA)
0.1% (RTD resistance > 100Ω)
0.1Ω (RTD resistance < 100Ω)
Ambient temperature
–40°C to +80°C (working)
–40°C to +80°C (storage)
Humidity
5 to 95% RH (non-condensing)
Category tested
A2, B2, C1, C2, C3
Overstressed fault mode i n=3kA
12kA
9kA (SD150X and SD275X only)
Impulse durability (8/20 μs)
10kA
6.5kA (SD150X and SD275X only)
Terminals
2.5mm2 (12 AWG)
Mounting
T-section DIN-rail
(35 x 7.5 or 35 x 15mm rail)
Weight
70g approximately
Case flammability
UL94 V-2
AC durability
1Arms, 5T
Service conditions
80kPa - 160kPa
5% - 95% RH
EMC compliance
To Generic Immunity Standards,
EN 50082, part 2 for industrial
environments
R&TTE compliance
EN 50082-2 : 1995
EN 41003 : 1999
EN 60950 : 1992
(not applicable to SD150X and
SD275X)
LVD compliance
SD150X & SD275X
EN 60950 : 1992
EN 61010 : 1995
SDPSTN
EN 41003 : 1999
IEC compliance
EN 61643-21:2001
To order specify Order by module, as listed in the
specification table and/or accessory
part numbers as defined on page 7.
Note: In accordance with our policy of continuous
improvement,
we reserve the right to change the
product’s specification without notice.
(Vac)
Rated
Voltage
voltage Protection
(MCOV) level (U p)
Residual
voltage
Bandwidth
(Frequency)
@1kV/ μs
@isn
(mA)
(Ω/line)
(µA)
(Uc)
(V)
(V)
(f G)
Special
feature
SD07
7
5
250
4.2†
500
7.7
<12
30
25kHz
SD16
16
11
250
4.2†
5
17
<25
40
25kHz
Fuse Disconnec
SD32
32
22
250
4.2†
5
36
<45
60
25kHz
Fuse Disconnect
SD55
55
38
250
4.2†
5
62
<90
100
25kHz
Fuse Disconnect
Fuse Disconnect
5
400
2.7
500
7.7
<12
30
50MHz
High Bandwidth
11
400
4.7
5
17
<25
40
50MHz
High Bandwidth
SD07R
7
SD16R
16
SD32R
32
22
400
10
5
36
<45
60
50MHz
High Bandwidth
SD55R
55
38
400
10
5
62
<90
100
50MHz
High Bandwidth
5
400
2.2
500
7.7
<12
30
25kHz
Low Resistance
11
400
2.2
5
17
<25
40
25kHz
Low Resistance
SD07X
7
SD16X
16
SD32X
32
22
400
2.2
5
36
<45
60
25kHz
Low Resistance
SD55X
55
38
400
2.2
5
62
<90
100
25kHz
Low Resistance
SD32T3
32
22
400
2.2^
5
10**
36
<45
60
720kHz
3 Terminal
SD07R3
7
SD16R3
16
SD32R3
32
SD55R3
55
5
400
2.7
500
7.7
<12
30
50MHz
3 Terminal
11
400
4.7
5
17
<25
40
50MHz
3 Terminal
22
400
10
5
36
<45
60
50MHz
3 Terminal
38
400
10
5
62
<90
100
50MHz
3 Terminal
0.75
10
2.7
0.3
5
<12
30
50MHz
3-wire RTD
5
175
<200
235
4MHz
PSTN
SDRTD
1
SDPSTN
162
114
550
4.7
SD150X 170
20
3A‡
0.1
250
ac
dc rms
170 130
<400
450
-
High current
SD275X 339
240
3A‡
0.1
250
350 275
<700
850
-
High current
ac rms
Note: all figures are typical at +25°C unless otherwise stated; *standard fuse; +over full working temperature
range; †at 20mA with a 250mA standard fuse; ‡these units need external 3A fuses; ^Signal; **Power & Common;
maximum energising current depends upon RTD resistance.
Blue colour signifies products ATEX certified EEx ia IIC T4.
Definitions of terminology used in table
1 Working voltage (Un)
2
Maximum voltage between lines or lines/
ground for the specified leakage current
Maximum leakage current (I c)
3
Maximum current drawn by the SPD at the
working voltage
Maximum continuous operating voltage (U c)
4
protected terminals without damage
Voltage protection level (Up)
5
Peak output voltage after injection of test
impulse from 1kV/μs generator (often
known as ‘let-through’ voltage)
Bandwidth
Frequency range up to which ac signals can
be transmitted without undue attenuation;
3dB into 50Ω (600Ω for the SDPSTN)
Maximum voltage that can be applied to the
Approvals
Country
(Authority)
Standard
Certificate/
File No.
Approved for
BASEEFA
(EC)
EN 50014:1997
EN 50020:2002
EN 50284:1999
BASEEFA
02ATEX0211X
EEx ia IIC T4*
Product
SD07X,SD16X,SD32X,
SD55X,SD07R, SD16R,
SD32R,SD55R,SDRTD,
SD32T3,SD07R3,SD16R3,
SD32R3,SD55R3
CSA/C/US
CSA C22.2 No. 0-M1991
LR 103652-3
EEx ia Class 1,
SD07,SD16,SD32,SD55,
(Canada, USA) CSA C22.2 No. 157-M1992
Groups A, B
SD07X,SD16X,SD32X,
UL 913, 5th edition
C and D, T4
SD55X,SD07R,SD16R,
CSA C22.2 No. 142-M1987
Class 1, Div 2
SD32R,SD55R,SDRDT,
CSA C22.2 No. 213-M1987
Groups A,B,C, D T4 SD32T3,SD07R3,SD16R3,
UL 508, 17th edition
SD32R3,SD55R3
UL 1604, 3rd edition
UL
UL 497B Listed
E220693
Isolated loop
SD07,SD16,SD32,SD55
(USA)
communication
SD07X,SD16X,SD32X
circuits
SD55X,SD07R,SD16R
SD32R,SD55R,SD07R3
SD16R3,SD32R3,SD55R3
SD32T3,SD55T3,
SD07X3,SD16X3,SD32X3,
SD55X3,SDRTD
UL
UL 1449 2nd Edition
E217523
AC power
SD150X,SD275X
(USA, Canada)
Recognised Component
protection
Austel
AS/NZ3548:1995
__
Private Wire
SD07R
(Australia)
AS/NZS4117:1996
TS001: 1997
* See page 6 for further details
MTL Surge Technologies
Power Court, Luton, Bedfordshire, England LU1 3JJ
Tel: +44 (0)1582 723633 Fax: +44 (0)1582 422283
E-mail: [email protected] WWW: www.mtlsurge.com
A member of the MTL Instruments Group plc
Nominal Series
Max.
current resistance leakage
(I n)
current
901-107 Rev H 5/03/06
3kA (8/20µs)
Lightning impulse current (Iimp)
Nominal
voltage+
(U n)
FP32
Din rail mounting, 20kA surge protection for Fieldbus systems
G
DIN rail mounting for easy installation and
automatic earthing
G
20kA maximum surge current per line
G
Plug connectors for quick and easy
connection or rewiring
G
Meets the requirements of IEC 611582:2000 for FOUNDATION FIELDBUS
G
10 year product warranty
The FP32 surge protection device
prevents surges and transient overvoltages conducted along the Trunk or
Spurs of fieldbus systems from
damaging the associated electronics
such as terminators, spur blocks and
the bus control equipment. The FP32 is
designed to be used at both ends of the
Trunk where a Spur is connected to
safely divert any surges to earth.
The multi-stage hybrid surge protection
network at the heart of the FP32 uses
a combination of solid state electronics
and a gas filled discharge tube (GDT) to
provide surge protection up to 20kA.
This impressive surge protection circuit
is designed to exhibit exceptionally low
line resistance and adds only a tiny
voltage drop to the bus. As a result, no
matter how many FP32 devices are
connected to a Trunk or Spur the
system will still be able to support its
full 32 transmitters as specified by IEC
61158-2.
In operation the FP32 device does not
adversely effect the performance or
operation of the fieldbus or connected
equipment, it allows signals to pass
with very little attenuation while
diverting surge currents safely to earth
and clamping output voltages to safe
levels.
removing a device or re-patching a
simple operation.
Fully automatic in operation, FP32
devices react immediately to make sure
that equipment is never exposed to
damaging surges between lines or the
lines
and
earth.
Reacting
instantaneously the FP32 redirects
surges safely to earth and then resets
automatically.
The FP32 meets IEC 61158-2:2000
for 31.25kB/s systems such as
FOUNDATION Fieldbus, PROFIBUS-PA
and WorldFIP.
A 10 Year ‘No Fuss’ warranty is
available as standard for the FP32, so
if a correctly connected device should
fail for any reason, simply return it for a
free replacement.
Din rail mounting and a small footprint
allow the FP32 to be conveniently
located near terminators and spur
blocks while plug connectors
for Trunk / spur cables
and the earth & shield
of the cable make
Fieldbus
Protection
Specifications
All figures typical at 25°C - 70°C
(77°F - 158°F) unless otherwise stated
Maximum surge current
20kA (8/20µs waveform) per line
Leakage current
<1μA @ working voltage
Working voltage
±32Vdc
Maximum continuous operating voltage
±36V peak normal mode
±225V peak common mode
Limting voltage
62V @ 3kA 8/20µs
Line resistance
0.5Ω per line
Capacitance
Line - Line - 40pF
Line - Earth - 80pF
Attenuation
-1dB - 7kHz-7.5mHz
Ambient temperature limits
-20C - +70C (working)
-40C - +80C ( storage)
Humidity
5% to 95% RH (non-condensing)
Electrical connections
Plug/header screw terminal strip
Weight
5.0 oz (140g approx)
Dimensions
See figure 1
EMC compliance
BS EN 60950:1992
BS EN 61000-6-2:1999
BS EN 61010-1:1993
Electrical Safety
ATEX II 3 G
DOC #MTL02ATEX0032X
Figure 1 Dimensions
Figure 2 Installation
Figure 3 Connection details
Approvals
Standard/Authority
Certificate/File
No.
Approved for
Product
ATEX Directive 94/9/EC
FISCO (BASEEFA)
BASEEFA04ATEX0260X
EEx ia IIC T4
EEx ia IIB T3 (-40°C≤Ta≤70°C)
FP32
USA (FM)
3022293
Class Nos. 3600 (1998), 3610 (1999),
3611 (1999), 3615 (1989), 3810 incl.
Supp 1 (1995-07 (1989-03),
ANSI/NEMA 250 (1991),
ISA-S12.0.01 (1999)
3025374
C22.2 No. 213, 142, 94, 157, 30
ANSI/NEMA 250
CAN/CSA-E79-0
CAN/CSA-E79-11
IS/I/1/ABCD
I/0/Ex ia/IIC
I/0/Ex ib/IIC
NE/I/2/ABCD
NE/I/2/IIC
FP32
India
Petroleum & Explosives Safety
Organisation (PESO)
EEx ia IIB T3
FP32
MTL Surge Technologies
Power Court, Luton, Bedfordshire, England LU1 3JJ
Tel: +44 (0)1582 723633 Fax: +44 (0)1582 422283
E-mail: [email protected] WWW: www.mtlsurge.com
901-103 Rev G 12/21/06
Canada (FM)
Surge protection devices are designed
and manufactured by MTL Surge Technologies.
A member of the MTL Instruments Group plc
FP32
Intrinsically Safe:
I/1/A-D, I/O/II C
Non incendive: I/2/A-D, I/2/II C
TP48 Series
Safeguards electronic process transmitters against
induced surges and transients from field cabling
G
Protects 2, 3, and 4 wire transmitters
G
Easy and direct mounting - simply screws into
spare conduit entry
G
Models for intrinsically safe and flameproof
installations available
G
Parallel connection avoids introduction of any
resistance into loop
G
FM for US and Canada and ATEX approved
G
10 year product warranty
The TP Series of surge protection devices
uniquely provide a level of protection for 2,
3 and 4 wire field-mounted transmitters
that is far in excess of the optional transient protection facilities available from the
transmitter manufacturers - without
involving any additional wiring, conduit
modifications or other expensive extras.
The TP protection network consists of highpower, solid-state electronics and a gasfilled discharge tube capable of diverting
10kA impulses. The whole unit is encased
in an ANSI 316 stainless steel housing,
threaded for the common conduit entries
used on process transmitters. Versions
are available for 1/2” NPT, 20mm ISO, and
G1/2” (BSP 1/2 inch) threaded entries.
Installation is very simple and can easily be
carried out retrospectively to existing
installations. The TP is screwed into any
unused conduit entry on the transmitter
case and flying leads are connected to the
terminal block and the internal earth stud.
The 3-wire TP protects +ve, -ve and signal.
The 4-wire TP protects +ve, -ve, and signal
+ve and -ve. They both operate without in any
way affecting normal operation - passing ac
or dc signals without attenuation while
diverting surge currents safely to earth and
clamping output voltages to specific levels.
The all important earthing connection is
made to the local casing of the transmitter
with no separate earth connection or
ground stake at the transmitter being
needed. In operation, the TP makes sure that
the transmitter electronics are never
exposed to damaging transients between
lines or between lines and casing/earth. Any
surge current appearing as a series-mode
or common-mode transient is converted into
a common-mode voltage - whereupon the
transmitter electronics are temporarily
raised to some higher voltage level before
‘floating’ down automatically (and without
damage) to resume normal operation.
(explosionproof) operation are available in
all gas groups and apparatus temperature
classification up to T4 for the TP48 3 & 4
wires and T6 for the TP48. Where
transmitters are used in circuits suitable
for Div 2/Zone 2 installations, the TP can
be added without adversely affecting the
level of safety.
For fieldbus applications, use the TP32
which meets the requirements of
IEC61158-2:2000 and ANSI/ISA-50.02-2
1992 for 31.25kbit/s sytems as used by
FOUNDATIONTM Fieldbus, PROFIBUS-PA
and WorldFIP.
For
hazardous-area
use,
approvals
for
both
intrinsically safe and
flameproof
Data & Signal
Protection
Specification
(all figures typical at 25°C unless otherwise stated)
TP48-3-N & TP 48-4-N
TP48-3-I & TP48-4-I
TP48-3-G & TP48-4-G
1/2” NPT
20mm ISO
(M20 x 1.5)
G 1/2” (BSP 1/2”)
Weight
175g
Dimensions
See figure 1
EMC compliance
To Generic Immunity Standards EN50082,
part 2 for industrial environments
Electrical safety
EEx ia IIC T4, Ceq=O, Leq=0; the unit can be
connected without further certification into
any intrinsically safe loop with open circuit
voltage <60V and input power <1.2W.
EEx d IIC T4; the unit is apparatus-approved to
flameproof (explosionproof) standards, and
can be fitted into a similarly approved housing.
Installation
The TP units are designed for mounting directly
into an unused conduit entry on a process
transmitter housing. Generally, two such entries
are provided, one of which is used for the loop
wiring. On the unused entry, the blanking plug or
other closure device is removed and an
appropriately threaded TP screwed into its place.
The transmitter specification should provide
information indicating the required thread type. TP
units can be installed using thread adaptors if
necessary, including certified adaptors in
hazardous area applications. For applications
where two conduit entries are not provided or
where both are used for electrical connections, TP
units can be housed in conventional conduit hub or
junction boxes, provided access to the loop
terminals is possible. Figure 2 shows connection
details for 3 & 4 Wire process transmitters.
Note: In accordance with our policy of continuous improvement,
MTL Surge Technologies reserves the right to change the product’s
specification without notice.
MTL Surge Technologies
Power Court, Luton, Bedfordshire, England LU1 3JJ
Tel: +44 (0)1582 723633 Fax: +44 (0)1582 483180
E-mail: [email protected] WWW: www.mtlsurge.com
A member of the MTL Instruments Group plc
(Dimensions across flats 23mm)
Figure 1 Dimensions (mm)
Figure 2 Connection detail for 3 & 4 wire process transmitters
Approvals
Country
(Authority)
Standard
No.
Certificate/File
EC (BASEEFA) EN 50014:1997 + Amendments 1 & 2 BASEEFA04ATEX0251X
EN 50020:1994, EN 50284:1999
EC (BASEEFA) EN 50014:1997 + Amendments 1 & 2 BASEEFA04ATEX0053X
EN 50018:2000 + Amendment 1
Atex Directive BS EN 50021:1999
TML02ATEX0032X
94/9/EC
USA (FM)
Class Nos. 3600 (1998), 3610 (1999), 3022293
3611 (1999), 3615 (1989), 3810 incl.
Supp 1 (1995-07 (1989-03),
ANSI/NEMA 250 (1991),
ISA-S12.0.01 (1999)
Canada (FM)
C22.2 No. 157
C22.2 No. 213
C22.2 No 142
C22.2 No. 94
C22.2 No. 30
3025374
Approved for
Product
EEx ia IIC T6 (Tamb = -40 to 60°C)
EEx ia IIC T5 (Tamb = -40 to 85°C)
EEx ia IIC T4 (Tamb = -40 to 60°C)
EEx d IIC T6 (Tamb = -40 to 60°C)
EEx d IIC T5 (Tamb = -40 to 80°C)
EEx d IIC T4 (Tamb = -40 to 85°C)
Ex n II T6 (-40°C<Tamb<+60°C)
EEx n II T5 (-40°C<Tamb<+85°C)
Intrinsically Safe:
I, II, III/1/A-G, I/0/IIC
Explosionproof: I/1/A-D
Non incendive: I/2/A-D, I/2/IIC
Dust ignition proof: II,III/1/EFG
Special protection: II/2/FG
Intrinsically Safe:
I, II, II/1/A-G, I/O/IIC
Explosionproof: I/1/A-D
Nonincendive: I/2/A-D, I/2/IIC
Dust ignition proof: II, III/1/EFG
Special protection: II/2/FG
TP48-X-Y-Z
TP48-X-Y-Z
TP48-X-Y
TP48-X-Y-Z
TP48-X-Y-Z
To order specify TP48-N-NDI
TP48-I-NDI
TP48-G-NDI
TP48-N
TP48-I
TP48-G
TP48-3-N-NDI
TP48-3-I-NDI
TP48-3-G-NDI
TP48-3-N
TP48-3-I
TP48-3-G
TP48-4-N-NDI
TP48-4-I-NDI
TP48-4-G-NDI
TP48-4-N
TP48-4-I
TP48-4-G
Certified process transmitter surge protection device - 1/2” NPT thread
Certified process transmitter surge protection device - 20mm ISO thread
Certified process transmitter surge protection device - G 1/2” (BSP 1/2 inch)
Non-certified process transmitter surge protection device - 1.2” NPT thread
Non-certified process transmitter surge protection device - 20mm ISO thread
Non-certified process transmitter surge protection device - G 1/2” (BSP 1/2 inch)
Certified process transmitter surge protection device - 1/2” NPT thread
Certified process transmitter surge protection device - 20mm ISO thread
Certified process transmitter surge protection device - G 1/2” (BSP 1/2 inch)
Non-certified process transmitter surge protection device - 1.2” NPT thread
Non-certified process transmitter surge protection device - 20mm ISO thread
Non-certified process transmitter surge protection device - G 1/2” (BSP 1/2 inch)
Certified process transmitter surge protection device - 1/2” NPT thread
Certified process transmitter surge protection device - 20mm ISO thread
Certified process transmitter surge protection device - G 1/2” (BSP 1/2 inch)
Non-certified process transmitter surge protection device - 1.2” NPT thread
Non-certified process transmitter surge protection device - 20mm ISO thread
Non-certified process transmitter surge protection device - G 1/2” (BSP 1/2 inch)
901-100 Rev G 11/10/05
Maximum surge current
10kA peak current (8/20μs waveform)
Leakage current
Less than 10μA at maximum working voltage
Working voltage
48V dc maximum
Bandwidth
1MHz
Resistance
No resistance introduced into loop
Ambient temperature limits
-20°C to +60°C (working)
-40°C to +80°C (storage)
Humidity
5% to 95% RH (non-condensing)
Electrical connections
TP48
3 flying leads (line 1, line 2 & earth)
TP48 3 Wire
4 flying leads (+ve, -ve, signal & earth)
TP48 4 Wire
5 flying leads (+ve, -ve, signal +ve, signal -ve,
earth)
Wire size 32/0.2 (1.0mm2, 18 AWG)
Lead length 250mm (minimum)
Casing
ANSI 316 stainless steel hexagonal barstock,
male thread
Threads
TP-Pipe Series
Safeguards electronic process transmitters against
induced surges and transients from field cabling
G
Easy and direct mounting - simply screws
into conduit entry
G
Straightforward and simple installation
G
Intrinsically safe and flameproof to
CENELEC standards
G
Low impedance series connection avoids
signal degradation of the loop
G
ATEX approved
G
10 year product warranty
The TP-Pipe Series of surge protection
device is a unique unit providing a level
of
protection
for
field-mounted
transmitters that is far in excess of the
optional transient protection facilities
available
from
the
transmitter
manufacturers - without involving any
additional wiring, conduit modifications
or other expensive extras.
The TP-Pipe protection network
consists of high-power, solid-state
electronics and a gas-filled discharge
tube capable of diverting 10kA
impulses. The whole unit is encased in
an ANSI 316 stainless steel housing,
threaded for the common conduit
entries used on process transmitters.
Versions are available for 1/2” NPT,
20mm ISO, and G 1/2” (BSP 1/2 inch)
threaded entries.
Installation is very simple and can easily
be carried out retrospectively to
existing installations. The TP-P is
screwed into the conduit entry on the
transmitter case and flying leads are
connected to the terminal block and the
internal earth stud. Field wiring is
connected to a three position socket and
then connected to the provided header.
They operate without in any way affecting
normal operation - passing ac or dc
signals without attenuation while
diverting surge currents safely to earth
and clamping output voltages to specific
levels.
The all important earthing connection is
made to the local casing of the
transmitter with no separate earth
connection or ground stake at the
transmitter being needed. In operation,
the TP-P makes sure that the transmitter
electronics are never exposed to
damaging transients between lines or
between lines and casing/earth. Any
surge current appearing as a seriesmode or common-mode transient is
converted into a common-mode voltage whereupon the transmitter electronics
are temporarily raised to some
higher voltage level before
‘floating’
down
automatically
(and
without damage) to
resume normal
operation.
For hazardous-area use, approvals for
both intrinsically safe and flameproof
(explosionproof) operation are available
in all gas groups and apparatus
temperature classification up to T4.
Where transmitters are used in circuits
suitable for Div 2/Zone 2 installations,
the TP-P can be added without
adversely affecting the level of safety.
For fieldbus applications, use the TP-P32 which meets the requirements of
IEC61158-2:2000
and ANSI/ISA50.02-2 1992 for 31.25kbit/s
systems as used by FOUNDATIONTM
Fieldbus, PROFIBUS-PA and
WorldFIP.
Data & Signal
Protection
Specification
(all figures typical at 25°C unless otherwise stated)
Maximum surge current
10kA peak current (8/20µs waveform)
Leakage current
Less than 10µA at maximum working
voltage
Working voltage
48V dc and 32V dc maximum
Bandwidth
1MHz
Resistance
Loop resistance: 1ohm
Ambient temperature limits
-40°C to +85°C (-40°F to +185°F)
(working)
-40°C to +85°C (-40°F to +185°F)
(storage)
Humidity
5% to 95% RH (non-condensing)
Electrical connections
Input:
3 position socket/header (max wire
Figure 1 Dimensions [mm]
2
#14AWG (2mm )
Output:
3 flying leads (line 1, line 2 & earth)
Wire size 32/0.2 (1.0mm2, 18AWG)
Lead length 250mm (9.85”) minimum
Casing
ANSI 316 stainless steel hexagonal
barstock,male and female thread
Weight
175g
Dimensions
See figure 1
EMC compliance
To Generic Immunity Standards
EN50082, part 2 for industrial
environments
Electrical safety
EEx ia IIC T4, Ceq=O, Leq=0; the unit can
be connected without further certification
into any intrinsically safe loop with open
circuit voltage <60V and input power
<1.2W.
Ex d IIC T4; the unit is apparatus-approved
to flameproof (explosionproof) standards,
and can be fitted into a similarly approved
housing.
Installation
The TP-Pipe units are designed for mounting
directly into the conduit entry on a process
transmitter housing. Generally, two such
entries are provided, one of which is used for
the loop wiring. The transmitter specification
should provide information indicating the
required thread type. TP-Pipe units can be
installed using thread adaptors if necessary,
including certified adaptors in hazardous area
applications. Figure 2 shows connection details
for typical process transmitters.
Note: In accordance with our policy of continuous
improvement, MTL Surge Technologies reserves the right to
change the product’s specification without notice.
Figure 2 Connection detail for a typical process transmitter
Approvals
Country
(Authority)
Standard
No.
Certificate/File
Approved for
Product
EC (BASEEFA)
EN 50014:1997 +
Amendments 1 & 2
BASEEFA06ATEX0034X
EEx ia IIC T6
(Tamb = -40 to 60°C)
EEx ia IIC T5
(Tamb = -40 to 85°C)
TP-P32-X-NDI
TP-P48-X-NDI
BASEEFA06ATEX0035X
Ex d IIC T6
(Tamb = -40 to 60°C)
Ex d IIC T5
(Tamb = -40 to 80°C)
TP-P32-X-NDI
TP-P48-X-NDI
MTL06ATEX4832
EEx n II T6
(-40°C<Tamb<+60°C)
EEx n II T5
(-40°C<Tamb<+85°C)
TP-P32-X-NDI
TP-P48-X-NDI
EN 50020:1994,
EN 50284:1999
EC (BASEEFA)
EN 50014:1997 +
Amendments 1 & 2
EN 50018:2000 +
Amendment 1
Atex Directive
94/9/EC
BS EN 50021:1999
TP-P32-X
TP-P48-X
X = I, N, or G
To order specify Fieldbus Applications
TP-P-32-N-NDI
TP-P-32-I-NDI
TP-P-32-G-NDI
TP-P-32-N
TP-P-32-I
TP-P-32-G
Certified process transmitter surge protection device - 1/2” NPT thread
Certified process transmitter surge protection device - 20mm ISO thread
Certified process transmitter surge protection device - G 1/2” (BSP 1/2 inch)
Non-certified process transmitter surge protection device - 1/2” NPT thread
Non-certified process transmitter surge protection device - 20mm ISO thread
Non-certified process transmitter surge protection device - G 1/2” (BSP 1/2 inch)
TP-P-48-N-NDI
TP-P-48-I-NDI
TP-P-48-G-NDI
TP-P-48-N
TP-P-48-I
TP-P-48-G
MTL Surge Technologies
Power Court, Luton, Bedfordshire, England LU1 3JJ
Tel: +44 (0)1582 723633 Fax: +44 (0)1582 483180
E-mail: [email protected] WWW: www.mtlsurge.com
A member of the MTL Instruments Group plc
Certified process transmitter surge protection device - 1/2” NPT thread
Certified process transmitter surge protection device - 20mm ISO thread
Certified process transmitter surge protection device - G 1/2” (BSP 1/2 inch)
Non-certified process transmitter surge protection device - 1/2” NPT thread
Non-certified process transmitter surge protection device - 20mm ISO thread
Non-certified process transmitter surge protection device - G 1/2” (BSP 1/2 inch)
901-130 Rev A 11/16/06
Transmitter Applications
TP32, TP32-T (Terminator)
Series
Protects transmitters and smart transmitters from induced
surges and transients on fieldbus cabling.
G
TP32 is a Fieldbus specific surge protector designed to
meet the requirements of IEC 61158-2:2000 &
ANSI/ISA-50.02-2 1992
G
TP32-T includes a TERMINATOR for Fieldbus in
addition to surge protection
G Easy and direct mounting – simply screws into a
spare conduit entry on the transmitter
G Parallel connection ensures ‘transparent’
operation - zero voltage drop across device
G ATEX approved, Certified FISCO Terminator
G 10 year product warranty
The TP32 surge protection device is specifically
designed to protect process transmitters and
devices on Fieldbus systems. The TP32 builds
on the high specification of the acclaimed TP48
range to provide a level of surge protection for
fieldbus transmitters that is well in excess of the
optional transient protection available from
some transmitter manufactures.
The terminated TP32-T has the same
protection circuit as the standard product, but
also includes a Foundation Fieldbus termination
circuit. This unique combination eliminates the
need to purchase and install additional
termination circuitry for the FF segment. The
TP32-T provides excellent transient protection
control and terminates the bus segment in one
simple-to-install package. The termination
circuit is designed to the requirements
described in ANSI/ISA 50.02-2. Note: Two (and
only two) terminators are required per bus
segment.
The all important earth connection is made via
the casing of the transmitter negating the need
for a separate earth connection or ground
stake at the transmitter. In operation, the TP32
makes sure that the transmitter electronics are
never exposed to damaging transients between
the lines and ground. Any surge current
appearing as a series-mode or common-mode
transient is converted into a common-mode
voltage whereupon the transmitter electronics
are temporarily raised to some higher voltage
level before ‘floating’ down automatically (and
without damage) to resume normal operation.
The TP32 protection network is a hybrid design
consisting of high-power, solid state electronics
and a gas discharge tube which is capable of
diverting surges up to 10kA. Encased in an ANSI
316 stainless steel enclosure, the TP32 exhibits
unparalleled mechanical durability providing
years of maintenance free operation in harsh
environments. The enclosure is available
threaded for all the common conduit entries.
1
Versions are available for /2” NPT, 20mm ISO,
1
1
and G /2” (BSP /2 inch) threaded entries.
adding increased voltage drop across the
segment while consistently diverting surge
currents safely to ground and clamping output
voltages to safe levels.
Approvals for intrinsically safe, flameproof/
explosionproof and non incendive operation are
available, in all gas groups and apparatus
temperature classification up to T6.
The TP32 is designed to meet the requirements
of IEC 61158-2:2000 and ANSI/ISA-50.022:1992 for 31.25kB/sec systems as used by
FOUNDATION Fieldbus, PROFIBUS-PA and
WorldFIP.
Installation is very simple and can easily be
carried out retrospectively to existing
installations. By connecting in parallel to
the transmitter circuit the TP32
does not interfere with the
normal operation of the bus
– passing AC or DC
signals
without
Data & Signal
Protection
Field device protection using TP32
Non Hazardous Installation
Install a TP32 on every instrument critical to the
operation of the process system.
Install TP32 on each instrument with a spur length
greater than 50m horizontal and 10m
vertical.
Critical
Instrument
For a detailed risk analysis (to minimize the number
of protectors required) and guidance for total
Fieldbus system protection, please see TAN 1010.
Hazardous Area Explosionproof/Flameproof/ Increased Safety
Install TP32-X-NDI (where X = thread type) on every
instrument critical to the operation of the process.
Install TP32-X-NDI on each instrument with a spur length
greater than 50m horizontal, 10m vertical.
See TAN 1010 for details of total Fieldbus protection.
Hazardous Area Intrinsically Safe System; FISCO
Install TP32-X-NDI (where X = thread type) on every instrument
critical to the operation of the process.
Install TP32-X-NDI on each instrument with a spur length
greater than 50m horizontal, 10m vertical.
See TAN 1010 for details of total Fieldbus protection.
NOTE: The TP32 NDI is FISCO compatible.
NOTE: Protection at the host end of the trunk is mandatory, see FP32 datasheet and TAN 1010 for more information.
Use of the TP32-T to terminate a Fieldbus trunk
Conventional Installation
Junction block and terminator
are required at the far end of
a Fieldbus trunk.
Installation Using TP32-T
Use of TP32-T eliminates the
need for an extra junction block
and terminator.
Terminator
Why Use a TP32-T TERMINATOR?
N Saves the expense of extra junction blocks and
terminators.
N Saves time during installation
N Provides the correct termination of a Fieldbus
trunk with the added benefit of high performance surge protection.
Specification
All figures typical at 25°C (77°F) unless otherwise stated
EEx ia IIC T4, Ceq=0, Leq=0; the unit can be
connected into any FISCO application with the
following input parameters Pi=5.32W.
EEx d IIC T6; the unit is apparatus-approved to
explosionproof (flameproof) standards, and can
be fitted into a similarly approved housing.
Figure 1 Dimensions
Figure 2 Connection detail for a typical transmitter
Approvals
Country
(Authority)
Approved for
Product
EC (BASEEFA) EN 50014:1997 + Amendments 1 & 2 BASEEFA04ATEX0251X
EN 50020:1994, EN 50284:1999
EEx ia IIC T6 (Tamb = -40 to 60°C)
EEx ia IIC T5 (Tamb = -40 to 85°C)
EEx ia IIC T4 (Tamb = -40 to 60°C)
TP32-N-NDI
TP32-I-NDI
TP32-G-NDI
EC (BASEEFA) EN 50014:1997 + Amendments 1 & 2 BASEEFA04ATEX0053X
EN 50018:2000 + Amendment 1
EEx d IIC T6 (Tamb = -40 to 60°C)
EEx d IIC T5 (Tamb = -40 to 80°C)
EEx d IIC T4 (Tamb = -40 to 85°C)
TP32-N-NDI
TP32-I-NDI
TP32-G-NDI
Atex Directive BS EN 50021:1999
94/9/EC
Ex n II T6 (-40°C<Tamb<+60°C)
EEx n II T5 (-40°C<Tamb<+85°C)
TP32-N
TP32-I
TP32-G
Note: In accordance with our policy of continuous improvement, we
reserve the right to change the product’s specification without
notice.
MTL Surge Technologies
Power Court, Luton, Bedfordshire, England LU1 3JJ
Tel: +44 (0)1582 723633 Fax: +44 (0)1582 422283
E-mail: [email protected] WWW: www.mtlsurge.com
A member of the MTL Instruments Group plc
Certificate/File
TML02ATEX0032X
USA (FM)
Class Nos. 3600 (1998), 3610 (1999), 3022293
3611 (1999), 3615 (1989), 3810 incl.
Supp 1 (1995-07 (1989-03),
ANSI/NEMA 250 (1991),
ISA-S12.0.01 (1999)
Intrinsically Safe:
I, II, III/1/A-G, I/0/IIC
Explosionproof: I/1/A-D
Non incendive: I/2/A-D, I/2/IIC
Dust ignition proof: II,III/1/EFG
Special protection: II/2/FG
TP32-N-NDI
TP32-I-NDI
TP32-G-NDI
Canada (FM)
C22.2 No. 157
C22.2 No. 213
C22.2 No 142
C22.2 No. 94
C22.2 No. 30
Intrinsically Safe:
I, II, II/1/A-G, I/O/IIC
Explosionproof: I/1/A-D
Nonincendive: I/2/A-D, I/2/IIC
Dust ignition proof: II, III/1/EFG
Special protection: II/2/FG
TP32 All
Installation
The TP32 is designed for mounting directly into an
unused conduit entry on a fieldbus transmitter housing
(see figure 2). Generally, two such entries are provided,
one of which is used for the bus wiring. On the unused
entry, the blanking plug or other closure device is
removed and an appropriately threaded TP32 screwed
into its place. The transmitter specification should provide
information indicating the required thread type. TP32
units can be installed using thread adaptors (such as a
tee piece) if necessary, including certified adaptors in
hazardous area applications. For applications where two
conduit entries are not provided or where both are used
for electrical connections, TP32 units can be housed in
conventional conduit hub or junction boxes, provided
access to the loop terminals is possible.
Standard
No.
3025374
To order specify TP32-N, TP32-T-N
TP32-N-NDI, TP32-T-N-NDI
TP32-I, TP32-T-I
TP32-I-NDI, TP32-T-I-NDI
TP32-G, TP32-T-G
TP32-G-NDI, TP32-T-G-NDI
1
/
” NPT thread
” NPT thread, with EEx ia, EEx d, approval
20mm ISO thread
20mm ISO thread, with EEx ia, EEx d, approval
1
1
G /2” (BSP /2 inch)
1
1
/
G 2” (BSP /2 inch), with EEx ia, EEx d, approval
2
1
/
2
901-114 Rev D 11/9/05
Maximum surge current
10kA peak (8/20μs waveform)
Leakage current
Line-line:
< 1μA at working voltage
Line-earth:
< 1μA at 120V common-mode
Working voltage
±32V dc maximum
±120V peak (or DC) maximum common-mode
Maximum continuous operating voltage
35V
Limiting voltage
Line-line with 250mm cable:
< 49V (10A, 10/1000μs pulse)
Line-earth with 75mm cable:
<635V (3kA, 8/20μs waveform)
<635V (6kV, 1.2/50μs waveform)
Line resistance
No resistance introduced into the loop
Capacitance
Line-line:
< 50pF
Line-earth:
< 100pF
Terminator (TP32-T only):
100 ohm, 1μF
Attenuation
7.8KHz–7.5MHz monotonic & better than –1dB
typical bandwidth, 150MHz on 100Ω system
Ambient temperature limits
T6
–40°F to +140°F (–40°C to +60°C)
T5
–40°F to +185°F (–40°C to +85°C)
Humidity
5% to 95% RH (non-condensing)
Electrical connections
3 flying leads: line 1 & line 2 plus
non-polarised earth
Wire size:
32 / 0.2 (1.0mm2, 18 AWG)
Lead length: 250mm minimum supplied
≤ 75mm recommended
Casing
ANSI 316 stainless steel hexagonal barstock,
male thread
Threads
1
/ ”
2 NPT
TP32-N
TP32-I
20mm ISO (M20 x 1.5)
1
1
TP32-G
G /2” (BSP /2 inch)
Weight
175g (6.18oz)
Dimensions
See figure 1
ATEX compliance
See Approvals table for details
EMC compliance
BS EN 61643-1
Electrical Safety
EEx ia IIC T6, Ceq=0, Leq=0; the unit can be
connected without further certification into any
intrinsically safe loop with open circuit voltage
<30V and input power <1.2W.