Specifications

10/31/02 Tech-304/DWO 14195 Page 5 of 39
1.3 Special Features
Non-Contact Position Feedback
To provide consistently accurate performance information, all linkages, levers and
connecting rods, from the positioner to the control valve have been eliminated from
the design. Valve position sensing is performed totally by non-contacting means
based upon characterization of flux strength as a function of position.
NON-CONTACT POSITION FEEDBACK
Rotary Valves
Magnet
Sensor
Magnet
Actuator
Shaft
Magnet
Magnet
Sensor
Valve
Stem
Magnet
Sensor
Magnet
Linear Valves