intelligent gas transmitte

La description

intelligent sensor transmitter provides ***0 mA output and ModBus RTU output proportional to the gas concentration and has LED(LCD optional) digital display real-time gas concentration. Its RS**5 digital signal is for communication. It easy to operate, reliable and has full functions, making it a leader in the nation. It has been widely used in petrol, chemistry, metallurgy, artifice, gas transportation, biological medicine and water procession etc.
Characteristics:
Sensor types: electrochemical sensor; Catalytic sensor; infra-red (IR), Photo Ionization Detection.
***0mA analog output(3+ channel) for direct communication to DCS system and RS**5 ModBus output
Sensor module design on -spot replacement s and automatically distinguish sensor fault and current display fault simultaneously.
LED Display(LCD optional)
Password verification for repeat operation, avoid fault operations.
**0～**0℃following compensation for accurate detecting.
Second grade visual alarms on-site and Relay(connected with audible/visual alarms or drive exhaust device).
User-selectable alarm setpoint(s).
 
Technical Parameters:
Range：refer to the chart following.
Working voltage：*4VDC±*5%
Signal output：4～*0mA linear current output；or RS**5 ModBus output
Responding time：T*0 less than *0 seconds
Recovering time: less than *0 seconds
Resolution：see the chart
Accuracy: ±3%F.S
Display model: LED display (LCD optional)
Environment temperature: **0～**0℃(upon the sensor’s parameter)
Environment humidity: ****5% R.H.(non-condensating)
Explosion-proof: Exd IICT6(for explosion proofing); ExiaIICT4(for intrinsic safety type)
Screw size: M*0×1.5、G1/2
Cable：Shield cable of  3×1.5mm2 or 4×2.5mm2 Transmission Distance：≤***0m
Dimension and weight：**0mm(L)**0mm(W)*5mm(H)  about 1.5kg