WESTLOCK CONTROLS
280N MIDLAND AVENUE, STE.258, SADDLE BROOK, NJ 07663 TEL: 201-794-7650 FAX: 201-794-0913
www.westlockcontrols.com
12/20/2017 TECH-533/ D.W.O. 22902 Page 5 of 20
1.3 Description
The K20 is a 4-20mA electro-pneumatic valve positioner/controller. Position measuring
is performed by off-set, shaft driven, state of the art Hall Effect Sensor. The positioner
comes standard with 4-20mA feedback transmitter. In addition there are options for
feedback limit switches, Mechanical, proximity & inductive proximity type.
1.4 Principles of Operation
The K20 utilizes two keys for auto calibration and two keys for settings. This controls
both Positioner and Position Transmitter with local LCD in conjunction with the
Diagnostic / Fault LED.
The K20 uses Hall Effect position sensing with ‘off axis’ detection to allow a through shaft
for the top mounted Westlock Beacon.
Keys
keys
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