Technical Parameters Parameter Specification Model Fisher™ 4194 (Part of the Rosemount 3051S family) Type Smart Pressure Transmitter (Gauge & Absolute) Output Signal 4-20 mA DC, HART 5/6/7 digital overlay Power Supply 10.5 to 45 V DC (standard, for 4-20 mA with HART) Communications HART Protocol Accuracy ±0.075% of calibrated span (includes linearity, hysteresis, and repeatability) Pressure Ranges Wide selection from as low as 5 inH₂O (1.25 kPa) to 4000 psi (275 bar). Ambient Temperature Limits -40°F to 185°F (-40°C to 85°C) Process Temperature Limits -40°F to 250°F (-40°C to 121°C) Wetted Parts Materials 316 Stainless Steel, Hastelloy C-276 Process Connection 1/2" NPT or 1/4" NPT internal thread Electrical Connection 1/2" NPT conduit connection Enclosure Rating NEMA 4X (IP66/67) Adjustable Damping 0 to 32 seconds (via software configuration)
