Free chlorine electrochemical sensor W510-DCL4.2

residual chlorinefor water4-20 mA

The Online Residual Chlorine Analyzer is equipped with a German-made CL4.2 sensor, which adopts a membrane-covered amperometric 2-electrode system with built-in electronics. It only measures pH-dependent residual chlorine, integrates a temperature sensor for automatic temperature compensation (avoiding sudden temperature change), requires no zero-point adjustment but needs DPD-1 method calibration, and is affected by pH and O3. In terms of technical features, it has high measurement stability, easy operation and maintenance, good environmental adaptability, and flexible signal & connection. Application - Core Adaptation: Water bodies without surfactants (tensides) (surfactants contaminate the membrane and affect accuracy). - Applicable Water Types: Swimming pool water, drinking water, service water, process water. Technical Parameters Measuring Parameter: Free chlorine; pH-dependent Measurement Range: Modbus RTU-Output: 0.005~2.000ppm, resolution 0.001 mg/L; 0.05~2.00ppm, resolution 0.01 mg/L; 0.5~20.0 ppm, resolution 0.1 mg/L; 4-20mA-Output: 0.005~0.500ppm, resolution 0.001 mg/L; 0.005~2.000ppm, resolution 0.001 mg/L; 0.05~5.00ppm, resolution 0.01 mg/L; 0.05~10.00ppm, resolution 0.01 mg/L; 0.05~2.00ppm, resolution 0.01 mg/L; 0.5~10.0 ppm, resolution 0.1 mg/L; 0.5~20.0 ppm, resolution 0.1 mg/L. Response Time T90: Approximately 30 seconds