YJJ CL2-A1 Chlorine Gas Electrochemical Sensor 0 - 20ppm for Portable Chlorine Gas Detector

Product Description:

YJJ CL2-A1 Chlorine Gas Electrochemical Sensor 0 - 20ppm for Portable Chlorine Gas Detector

Features:

I. Core Parameters (Electrochemical Cl₂ Sensor)

Detected Gas: Chlorine Gas Cl₂

Measurement Range: 0 - 20 ppm (ensuring accuracy range)

Short-term Overload: Maximum tolerance 50 ppm

Sensitivity: -350 ~ -750 nA/ppm (under 10 ppm chlorine gas conditions)

Response Time T90: < 60 s (typical value < 40 s)

Resolution: < 0.02 ppm (able to detect ppb-level minor leaks)

Zero Point Current: ±0.4 ppm equivalent value

Linear Range: 0 - 5 ppm with good linearity, full range error ±1.5 ppm

Environmental Conditions

Temperature: -20℃ ～ +50℃

Humidity: 15% - 90% RH (no condensation)

Air Pressure: 80 - 120 kPa

Service Life: ≥ 24 months (original factory 24-month warranty)

Long-term Drift: Zero-point drift < 0.05 ppm/year; Sensitivity annual drift < 10%

Physical Dimensions: Φ20.2 × 16.5 mm, Weight < 6g, Standard 4-pin A-series package

Cross-Interference: SO₂ interference is small, CO, H₂, ethylene, etc. interference are extremely low, suitable for complex working conditions

II. Product Principle

Fuel cell type electrochemical sensor, chlorine gas undergoes redox reaction on the electrode surface, outputting a weak current signal, the current size is proportional to the chlorine gas concentration, the rear-end circuit converts the current into concentration values.

III. Main Applications

1) Instrument Integration (OEM preferred)

Portable chlorine gas detector, single toxic gas alarm instrument

Fixed online chlorine gas transmitter, gas monitoring probe

Industrial online monitoring module, PLC gas collection module

2) Industry Application Scenarios

Water supply / sewage treatment plants

Chlorine gas leakage monitoring in water disinfection sections, chlorination rooms, liquid chlorine steel cylinder warehouses, preventing personnel poisoning.

Chlor-alkali chemical industry, PVC synthesis production line

Pointed monitoring of minor leaks at chlorine gas pipelines, valves, reactors, liquid chlorine pumps sealing areas.

Swimming pool, swimming hall disinfection system

Monitoring of chlorine compound volatile gas concentration to ensure indoor venue occupational safety.

 fine chemicals

Tail gas and pipeline leakage detection in chlorination synthesis process workshops.

Semiconductor electronics industry

Early warning of dry etching chlorine process exhaust gas, machine gas pipeline leakage.

Environmental protection supervision, laboratory

Occupational health toxic gas detection, emergency inspection equipment.

Specifications: