The Fisher 3620J electro-pneumatic positioner delivers accurate, reliable valve positioning for single-acting rotary actuators. It combines the proven 3610J pneumatic positioner with the 3622 electro-pneumatic converter to convert a 4–20 mA DC control signal into proportional pneumatic output pressure. Designed for Fisher 1051, 1052, and 2052 actuators (and compatible with V500 and Vee-Ball™ valves), the 3620J ensures precise stem rotation in demanding process applications.
| Parameter | Specification |
|---|---|
| Input Signal | 4–20 mA DC (30 VDC max compliance, 2.4 VDC min at 20 mA) |
| Output Signal | Pneumatic up to full supply pressure |
| Supply Pressure | 0.3 bar (5 psi) above actuator requirement; max 10.3 bar (150 psig) |
| Air Consumption (steady-state) | 0.49 normal m³/h (18.2 scfh) at 1.4 bar |
| Operating Temperature | –40 to 82 °C (–40 to 180 °F) |
| Valve Rotation | 60°, 75°, or 90° |
| Linearity (direct/reverse) | ±1.5% / ±0.75% of output span |
| Hysteresis | 0.75% of output span |
| Deadband | 0.1% of input span |
| Electrical Connection | 1/2-14 NPT conduit |
| Pneumatic Connections | 1/4 NPT internal |
Ideal for precise control of rotary valves in oil & gas, chemical, power, and refining processes where accurate positioning and hazardous-area certification are required.
Phone/WeChat/WhatsApp: +8613916209596
Email: svetama@gbsxj.com
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