intelligent CL2 detect transmitter

QB2000N CL3 transmitter is a microprocessor based intelligent sensor transmitter. Which provides 4-20 mA output and ModBus RTU output proportional to CL2 concentrationand has LED(LCD optional) digital display real-time gas concentration. Its RS485 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 ◆4-20mA analog output(3+ channel) for direct communication to DCS system and RS485 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. ◆-40~+70℃ following compensationfor 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:0-10/100PPm ◆ Working voltage:24VDC±15% ◆Signal output:4~20mA linear current output; or RS485 ModBus output ◆Responding time:T90 less than 30 seconds ◆Recovering time: less than 30 seconds ◆Resolution:see the chart ◆Accuracy: ±3%F.S ◆Display model: LED display (LCD optional) ◆Environment temperature: -30~+60℃(upon the sensor specific) ◆Environment humidity: 10-95% R.H.(non-condensating) ◆Explosion-proof: Exd IICT6(for explosion proofing); ExiaIICT4(for intrinsic safety type) ◆Ingress protection: IP66 ◆Screw size: M20×1.5,G1/2 ◆ Cable: Shield cable of 3×1.5mm2 or 4×2.5mm2 Transmission Distance:≤1000m ◆Dimension and weight: 160mm(L)140mm(W)85mm(H) about 1.5kg