Description Technical Specification Output 4 mA to 20 mA source and drain type current output method (default source type) Inhibit 1 mA to 3 mA (default 2 mA) Warning 0 mA to 4 mA (default 4 mA) Fault 0 mA Out of range 20 mA to 21.5 mA (default 21 mA) Digital output Optional multi-point Modbus RS 485 (intermediate DVC/DX 100(m) connection for communication) Material 316 stainless steels Optima Plus (HC) Zero ＜±1% LEL,50% FSD＜±2% LEL Optima Plus (ET) Zero <±2% LEL,50% FSD＜±3% LEL Rereading Accuracy <±2% LEL at LEL 50% FSD Linearity <5% FSD Response Time T 50＜4.5 sec, T 90＜6.5 sec (for methane, including weather shield) Certified operating temperature -40 °F to 149 °F (-40 ℃ to 65 ℃) Drift due to time and temperature effects -40 °F to 149 °F (-40 °C to 65 °C) Zero <±2% LEL <±4% LE at 50% FSD Vibration with pressure 0.1% (reading) per haubar Power supply 18 V to 32 V (24 V normal); 4.5 W max Protection class IP 66/67 Diagnostics Operation with certified hand operators
