Electro-Pneumatic Positioners
Electromechanical positioners are conventional pneumatic positioners that have an additional integrated electro-pneumatic transducer. The transducer receives the DC analogue input signal from the control system and converts it to a proportional pneumatic signal which is then sent to the conventional positioner Almost every Fisher® pneumatic positioner has the option of adding an integrated electro-pneumatic transducer. This option allowing customers to upgrade their existing control technology while continuing to use their current reliable Fisher positioner technology they are comfortable and familiar with.
 | Fisher 3582i electro-pneumatic, single-acting positioner is used with diaphragm-actuated, sliding-stem control valve assemblies. |
 | Fisher 3620J electro-pneumatic, single-acting positioner is used with rotary actuators to accurately position control valves used in throttling applications. |
 | Fisher 3620JP electro-pneumatic, double-acting positioner is used with rotary actuators to accurately position control valves used in throttling applications. |
 | Fisher 3661 electro-pneumatic, single-acting positioner is used with various actuators on sliding-stem valves for throttling applications. |
 | Fisher 3720 electro-pneumatic positioner is designed for use with either diaphragm or piston rotary actuators. |
|
|
|
