plumbob (yo-yo)

ELECTROMECHANICAL
LEVEL MEASUREMENT
JR12/13
PLUMBOB
FOR SOLIDS, GRANULES AND POWDERS
PLUMBOB 3000 SERIES
The Plumbob 3000 is an electro-mechanic level measuring
instrument for continuous measuring of level or volumes in
silos, hoppers or tanks.
PLUMBOB 3000
Rope & Tape
version
The Plumbob 3000 is mounted on the top of the silo. A sensor
weight is driven down into the silo. It is mounted at the end of
a rope or tape which is wound on a motor driven roller. Upon
contact with bulk material, the motor changes the winding
direction and the sensor weight is driven back to the upper
stop position.
During downwards movement of the sensor weight the
distance is electronically measured by the rotations of the
internal rope / tape roller. The micro-controller converts the
measured distance into an output signal, which is a
volumetric signal based on the silo geometry. The output signal is updated, when the sensor weight touches the bulk
material.
•
Discontinuous level measurement for nearly all kinds of bulk goods and interface measurement
•
Simple and reliable measuring principle
•
Sensor weights in various designs suitable for every application
•
Insensitive to dust, dielectrics, conductivity, humidity, caking
•
Easy installation, maintenance-free operation
•
Very precise results covering large measuring ranges
•
Suitable in hazardous locations (dust explosion)
•
Detection of solids in liquids
•
Suitable for interface applications
•
Increased durability via brush-less motor also with high measuring frequency
•
Large measurement distances and long intervals between services thanks to new rope system
•
Complementary remote box NB9000 allows remote programming and analysis for up to 10 units
•
A multitude of different process connections and accreditations ensure that Plumbob is suitable for the international
market
TECHNICAL DATA
Housing
Aluminium IP 66 (Type 4)
Certificates
CE; ATEX II 1/2 D, FM CI, II, III, Div. 1
Temperature
-40°C up to +250°C (-40°F up to +482°F)
Pressure
max. +1,7bar (+25psi)
Sensitivity
from 20g/l (1.2lb/ft3) depending on sensor weight
Supply Voltage
Measurement Distance
AC version: 98...253V 50-60Hz, DC
version::20...28V
Flange DN 100 PN 16, Flange 4 inch
150lbs,Flange 2 and 3 inch 150lbs,
Thread R 1,5 inch.
Rope version max. 30m; taper version max. 40m
Communication
4-20mA; relay counting pulse; Modbus; Profibus DP
Process Connection
View of electronic
chamber
View of rope/tape
chamber
PLUMBOB 4000 SERIES
The Hycontrol Plumbob level sensor is an
electromechanical level measuring instrument for
continuous measurement of the level or contents in tanks
and silos.
The Hycontrol control unit is mounted on the top of the silo
and a sensor weight is mounted at the end of a rope or tape
which is wound around a motor driven roller. The weight is
then driven down into the silo until it makes contact with the
bulk material. When it detects the product the motor
changes the winding direction and the sensor weight is
PLUMBOB 4000
Rope & Tape
driven back to the upper stop position. During this
versions
downwards movement of the sensor weight the distance is
electronically measured by the rotations of the internal
rope/tape roller. The microcontroller then converts the
measured distance into an output signal which can be converted into a volumetric signal based on the dimensions and
geometry of the silo. The output signal is updated when the sensor weight touches the bulk Material.
The Plumbob 4000 series is used in dry and unproblematic bulk goods. It is particularly suitable for the building, animal feed
and grain industry.
This technology has been available for many years and has a number of advantages which other high
technology products such as radar or TDR cannot solve. An example of this is on low dielectric pastic
products or salt saturators for detecting the granular salt levels beneath the water. In this application the
water and salt levels change independently of each other but the plumb bob will measure through the
water every time to reach solid product - simple but effective!
•
Sensational cost / performance ratio
•
Regardless of material properties such as conductivity, dust, dielectrics
•
Easy installation - also for direct mounting on an inclined silo roof
•
Easy installation, maintenance-free operation for many years
•
Simple and reliable plumb bob measuring principle
•
Suitable in hazardous locations (dust explosions)
•
Multi-language software menu [English, German, French, Russian, Italian]
TECHNICAL DATA
Housing
Aluminium IP 66 (Type 4)
Certificates
CE; ATEX II 1/2 D
Temperature
-40°C up to +80°C (-40°F up to +176°F)
Pressure
max. +0.2bar (+3.0psi)
Sensitivity
from 300g/I (18lb/ft3)
Supply Voltage
AC version: 230V or 115V 50-60Hz
Process Connection
Flange DN 100 PN16, Flange 4 inch 150lbs,
Flange 2 and 3 inch 150lbs, Flange R 1 ½ inch,
Thread NPT 1 ½ inch, Thread NPT 3 inch (adapter), aiming flange
Measurement Distance
Max. 30m
View of electronic
chamber
View of rope/tape
chamber
HYCONTROL LEVEL TECHNOLOGIES
(2)
(1)
(3)
Product Range For Solids :-
(4)
(5)
(1) TDR Radar For Solids
(2) Ultrasonic, ‘Through Air’
(2) 2 Wire Ultrasonic Transmitter
(6)
(3) FMCW 2 Wire Radar
(4) Continuous ‘Servo’ Level Indicator
(7)
(5) FMCW 2 Wire Radar
(8)
(6) Capacitance Level Switch
(7) Vibrating Probe Level Switch
(9)
(9)
(8) Rotating Paddle Level switch
(9) Microwave Level Switch
(10) Doppler Flow Switch
(10)
Product Range For Liquids :(4)
(1) By-Pass Level Indicator With Radar
(2)
(2) TDR Radar For Liquids
(3) 2 Wire Ultrasonic Transmitter
(5)
(3)
(6)
(1)
(4) FMCW ‘Horn’ Radar 2 Wire
(5) Magnetic Float Switches
(7) (8)
(6) FMCW 2 Wire Radar
(7) Capacitance Level Switch
(9)
(8) RF Admittance Level Switch
(10)
(9) Side Mounting 316 SS Float Switch
(10) Tuning Fork Level Switch
(11) Tuning Fork Level Switch
(11)
(12) Ultrasonics ‘Through Wall’
(13) Mini Magnetic Float Level Switch
(13)
(12)
Hycontrol Ltd, Larchwood House, Orchard Street, Redditch, Worcestershire, England, B98 7DP
Tel : 01527 406800, Fax : 01527 406810, [email protected], www.hycontrol.com