Topworx DXP - Installation; Potentiometer Electrical Data; Installation Procedure

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Potentiometer Electrical Data:Potentiometer Electrical Data:
Potentiometer Electrical Data:Potentiometer Electrical Data:
Potentiometer Electrical Data:
-Voltage Input Range: 0-35 Volts
-Actual Electrical Travel 340° (dead band of 20°)
-Current Maximum: 3mA
-Recommended operating wiper current is less than or equal to 1 micro amp (recommend using the wiper voltage to drive an operational
amplifier working as a voltage follower in which a very small load is applied to the wiper)
-Independent Linearity ±2%
-Resistance Tolerance ±20%
Installation (
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4-20mA Position Transmitter Module and Stand Alone Potentiometer
Typically the 4-20mA Position Transmitter module and potentiometer options are already installed in TopWorx valve controller products. Use the
following installation directions only if you are replacing or upgrading an existing unit:
1) First remove the valve monitor enclosure from the valve/actuator (for removal instructions please refer the applicable TopWorx Valve Controller
Instruction, Operation and Maintenance Manual)
2) Install the 4-20mA position transmitter using the supplied or existing mounting bolts (See Illustration 2):
3) Remove the existing shaft and replace with the new shaft and position sensor kit assembly (See Illustration 3):
a. Remove circlip and washer from shaft on bottom of enclosure (outside)
b. pull shaft out gently from top side of enclosure
c. Install lube (from packet) on new shaft just below potentiometer and spread around oring seals on shaft.
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tion 2tion 2
tion 2tion 2
tion 2
4-20 position4-20 position
4-20 position4-20 position
4-20 position
transmitter moduletransmitter module
transmitter moduletransmitter module
transmitter module
and bracketand bracket
and bracketand bracket
and bracket
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tion 3tion 3
tion 3tion 3
tion 3
POTENTIOMETER CONNECTION METHOD:
KX & MX MODELS:
CONNECTOR PLUGS INTO CIRCUIT BOARD.
KA, MA, KB & MB MODELS:
POTENTIOMETER ONLY CONNECTED
ACCORDING TO WIRING DIAGRAM.
4-20 mA POSITION
TRANSMITTER
POTENTIOMETER
1K OR 10K