hydrogen gas price with hart protocol and 4-20ma output

hydrogen gas price 1. Fixed type installation 2. Gas detector with lcd display 3. Audible and visual alarm for optional

Technical features:

* 4-20mA, 3 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°C (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