The principle of the change of heat conduction through the adsorption of gas on the surface of metal oxide semiconductor by ethanol sensor determines the concentration of gas by the change of resistance value of platinum coil.
The two arms of the bridge are matched by the detection element and the compensation element.
The resistance of the detection element decreases and the output voltage of the bridge is changed when the alcohol is encountered.
The change of the voltage increases proportionally with the increase of the gas concentration, and the compensation element acts as reference and temperature compensation.
Measurement range of ethanol: 0-1000ppm
Method of measurement: Catalytic combustion
Measurement accuracy of ethanol: =Readings ±3%(25℃)
Response time: Generally less than 15 seconds
Baud rate: 2400/4800/9600
Communication port: RS485/4-20mA/0-5V/0-10V/NB-IOT/GPRS/4G/LORA/5G
Power Supply Voltage: 12V-24V DC
Electricity consumption: <1W
Running temperature: -30-50℃ (-20-40℃ continuous)
Working humidity environment: 0-100%RH (15-95%RH)
Working pressure range: 0.9-1.1atm
Outline dimension: 110×85×44mm3