QB2000N NH3 transmitter is a microprocessor based intelligent sensor transmitter. Whichprovides 4-20 mA output andModBus RTU outputproportional to NH3 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
◆Sensormodule 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:0-50/500/1000ppm
◆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
◆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
◆Dimension and weight:160mm(L)140mm(W)85mm(H) about 1.5kg
