Technical Specifications / Parameters Parameter Specification Model Fisher 785C Type I/P (Current-to-Pressure) or E/P (Voltage-to-Pressure) Transducer Input Signal I/P: 4-20 mA DC (standard), other ranges available. E/P: 0-10 VDC (standard), other ranges available. Output Signal Standard: 3-15 psig (0.2-1.0 bar). Other Ranges: 3-27 psig, 6-30 psig, and others are available. Air Supply Pressure 20 to 55 psig (1.4 to 3.8 bar), typically 20 psig (1.4 bar) greater than the required output pressure. Air Consumption Static: Less than 0.2 SCFM (5.7 SLPM). Load: Varies with output. Accuracy Typically ±0.5% of span. Linearity & Hysteresis Typically ±0.5% of span. Repeatability Typically ±0.25% of span. Enclosure Rating NEMA 4X (Weatherproof and Corrosion-Resistant). Hazardous Area Approvals FM, CSA, and ATEX approvals available for Intrinsically Safe (IS) and Non-incendive (NI) applications. Supply Air Connection 1/4" NPT Female Output Air Connection 1/4" NPT Female Electrical Connection 1/2" NPT conduit connection. Ambient Temperature Range Standard: -40°F to +185°F (-40°C to +85°C). Materials Housing: Aluminum (polycarbonate for IS); Internal parts: Brass, Stainless Steel, Buna-N.
