Technical features: * 4-20mA, 2 wire connection ,compatible with existing alarm control unit or DCS (Distributed Control System) * Flameproof body design acc. to IEC61508,simple and easy installation and maintenance. * Multi-parameter backlight LCD display: measuring range,digital gas reading ,units, bar graph , system status etc. * International standard plug-in sensor, Plug and Play! . * Sensor replacement without recalibration, automatic sensor data recognition. Sensor fault signal output monitoring and indicating. * Programmable alarm operation value, low or high level alarm indication. * Three-key operation for on-site configuration and maintenance. * PC programmable software for online configuration and maintenance. * PDA programmable software for configuration and maintenance on-site,field or remote operation separate from the control units. * Automatic temperature compensation ensure the correct measurement.
Thchnical data: * Power supply: 24VDC (10.5 ~ 45 VDC) * Linear output signal: 4~22.8mA with superimposed communication signal for HART protocol * Failure signal: 3.6mA * T90 response time: <30 sec * Resume time: <35 sec * Resolution: 1 uA * Accuracy: ±3%F.S.; ±1%F.S. (On request) * Display : backlight LCD, LED * Backlight LCD display : 5-digit gas reading 50 bar graph display 0-100% full scale" * Unit: ppm, mA, %,%LEL,%VOL * Operating temperature: -40~70℃ (According to gas sensor operating conditions) * Humidity: 10-95%RH (non condensing) * Ex-protection: Exd IIC T6 (Flame-proof Type) * Electronic housing: Die-cast aluminium explosion-proof housing * Accessories material: Aluminium for O2,CO and combustible gas. Stainless steel for others. * IP rating: Ip66