Application of CL2 gas sensor


Chlorine gas is used for disinfection treatment, which is cheap, less dosage, high reliability and mature process.
Chlorine gas is a widely used disinfectant in waterworks. So it is ideal for wastewater treatment to ensure the quality of recycled water is stable.

However, as chlorine gas (Cl2) is one of the toxic and harmful gases, it is necessary to prevent chlorine leakage or excessive concentration resulting in poisoning.

Therefore, sewage treatment ponds and other places need to install chlorine concentration detection alarm, detection of chlorine concentration exceeds the standard, including the application of CL2 gas sensor.


The chlorine concentration regulation device of sewage treatment plant consists of chlorine fan, air duct, CL2 gas sensor, computer, control panel, instrument panel and so on.

The chlorine fan is fixed on the edge of the sewage treatment tank through the anchor bolt, and the other end of the air pipe extends to the inside of the sewage treatment tank.

The computer implementation through a cable connects with the cl2 sensor, and the control panel and instrument panel are fixed on the edge of the sewage treatment pool.

The motor part of the chlorine fan is a servo motor.

The computer through a cable connects with the servo motor in the chlorine fan, and the computer contains the signal analysis module of the chlorine concentration sensor.

Electrochemical CL2 sensors are very useful.

cl2 gas sensor
Product Introduction:

Cl2 electrochemical gas sensor is an electrochemical gas sensor which uses electrochemical principle to detect chlorine gas concentration.

Chlorine electrochemical gas sensor built-in high precision electrochemical sensor. Through the circuit, the chlorine gas concentration signal output to the digital signal customers need.

Product parameters:
Detection gas: chlorine gas

Product Model: JEC-CL2

CL2 range: 0-20ppm

CL2 resolution: 0.1 PPM

Response time: T90≤15s

Detection principle: electrochemistry

CL2 accuracy: ≤ reading soil 3% (25°C)

Working voltage: 5V 2%

Output signal: TTL/ analog voltage/analog current /RS485/RS232

Life expectancy: 1 year

Operating environment: -10~50°C 15%~90%RH Atm 10%

Cross interference: CO, CO2, SO2, NO2, CH4, H2S, etc

Power consumption: ≤ 0.2W

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