Technical Parameters General Model: Fisher CVX Valve Positioner Type: Microprocessor-Based, Electro-Pneumatic Positioner Technology: Non-contact, using a Hall Effect sensor for position feedback. Communication: Analog 4-20 mA; HART® communication protocol (on HART-enabled models). Input Signal Standard Analog Input: 4 to 20 mA DC, two-wire connection. Input Impedance: 8 ohms (at 20 mA, including HART communication). Pneumatic Performance Supply Pressure Range: 1.4 to 7.0 bar (20 to 100 psig) Output Pressure Range: 0 to 100% of supply pressure. Air Consumption (Static): Very low, typically less than 0.024 Nm³/hr (0.015 SCFM). Air Flow Capacity: Up to 1.8 Nm³/hr (1.1 SCFM) for standard models; High-flow versions are available for faster actuators. Control & Performance Linearity: ±0.5% of span (with characterized feedback) Hysteresis: Less than 0.3% of span. Calibration: Fully automatic, one-touch calibration procedure. Environmental Ambient Temperature Range: Standard: -25° to 80°C (-13° to 176°F) Extended: -40° to 80°C (-40° to 176°F) Relative Humidity: 0 to 100% condensing. Enclosure Rating: NEMA 4X / Type 4X / IP66 (Weatherproof, Dust-tight, and Hose-proof). Electrical Loop Power: Powered directly from the 4-20 mA signal loop (Two-wire device). Hazardous Area Approvals: Available as Intrinsically Safe (FM, FMC, CSA) and Flameproof (Explosion-proof). Physical & Mounting Mounting: Directly mounts to Fisher rotary actuators (e.g., 1052, 1066 styles) and many linear actuators. Adaptable to other valve brands using universal mounting kits. Housing Material: Lightweight, corrosion-resistant aluminum. Weight: Approximately 1.6 kg (3.5 lbs). Options & Variants CVX500: Standard model. CVX HART: Includes HART protocol for digital configuration and diagnostics using a hand-held communicator. Feedback Characterizations: Available in linear and various characterized (e.g., quick-opening) curves to match the valve's flow characteristic.