The Fisher 3620J is a single-acting electro-pneumatic rotary valve positioner engineered for quick field installation and straightforward maintenance. It transforms a standard 4–20 mA signal into precise pneumatic control for Fisher 1051/1052/2052 actuators, making it the ideal upgrade path from pneumatic to electro-pneumatic operation using the integrated 3622 converter.
| Parameter | Specification |
|---|---|
| Input Signal | 4–20 mA DC constant current, split-range capable |
| Supply / Output Connections | 1/4 NPT internal |
| Maximum Supply Pressure | 10.3 bar (150 psig) or actuator limit |
| Steady-State Air Consumption | 0.49 normal m³/h (18.2 scfh) @ 1.4 bar |
| Temperature Range | –40 to 82 °C |
| Independent Linearity | ±1.5% (direct), ±0.75% (reverse) |
| Hysteresis / Deadband | 0.75% / 0.1% of span |
| Hazardous Area Approvals | CSA, FM, ATEX, IECEx Intrinsically Safe & Explosion-proof |
| Weight | 3.6 kg (8.0 lb) |
Perfect for retrofits on existing rotary valves, plant expansions, or any installation where fast commissioning and minimal downtime are critical.
Phone/WeChat/WhatsApp: +8613916209596
Email: svetama@gbsxj.com
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