Main view of the CL20DPM film-covered digital disinfectant sensor, featuring a robust stainless steel body designed for precise, continuous residual chlorine measurement.
Digital disinfectant sensor installed in a commercial swimming pool control system, ensuring real-time automated dosing and water quality safety.
Close-up of the free chlorine electrode sensing tip, highlighting the advanced film-covered membrane and high-purity gold and silver chloride components.
CL20DPM digital disinfectant sensor signal wiring diagram, supporting RS485 and 4-20mA output for seamless industrial PLC integration.
Main view of the CL20DPM film-covered digital disinfectant sensor, featuring a robust stainless steel body designed for precise, continuous residual chlorine measurement.
Digital disinfectant sensor installed in a commercial swimming pool control system, ensuring real-time automated dosing and water quality safety.
Close-up of the free chlorine electrode sensing tip, highlighting the advanced film-covered membrane and high-purity gold and silver chloride components.
CL20DPM digital disinfectant sensor signal wiring diagram, supporting RS485 and 4-20mA output for seamless industrial PLC integration.

Film-Covered Digital Residual Chlorine Sensor for Water Quality

Our CL20DPM film-covered digital disinfectant sensor delivers precise, stable water quality analysis with advanced digital signal output.

● Advanced Membrane Technology: Utilizes a highly sensitive film-covered design that provides exceptional measurement stability and accuracy for the Residual Chlorine sensor and Free Chlorine sensor, significantly reducing signal interference and maintenance frequency.
● Integrated Digital Output: Features a built-in microprocessor that directly outputs digital signals (such as RS485), ensuring fast response times, strong anti-interference capabilities, and seamless integration into industrial process control systems.
● Versatile Multi-Disinfectant Monitoring: Engineered for comprehensive water quality analysis, this sensor is capable of precisely measuring multiple critical parameters, including residual chlorine, free chlorine, ozone, and chlorine dioxide.
● Heavy-Duty Industrial Construction: Built with premium, corrosion-resistant electrode materials (such as gold, silver chloride, and stainless steel) to guarantee a long service life and reliable continuous operation in harsh or fluctuating temperature environments.

Disinfectant Free Chlorine Sensor Features

The CL20DPM Film Covered Digital Residual Chlorine Sensor for Water Quality is an advanced multi-parameter measurement tool specifically designed for industrial water treatment professionals. Utilizing cutting-edge membrane technology alongside premium materials like gold, silver chloride, and stainless steel, it delivers precise analysis of residual chlorine, ozone, and chlorine dioxide.

This rugged free chlorine sensor is ideal for municipal water plants and wastewater facilities, effectively solving signal interference and maintenance issues in fluctuating temperature environments. Featuring a built-in microprocessor for direct RS485 digital output and standard industrial dimensions for seamless pipeline integration, it ensures reliable continuous monitoring.

Residual Chlorine Probe Technical Specifications

System Parameters
Measured Parameters Residual chlorine, chlorine dioxide, ozone, total chlorine, trichloroisocyanuric acid, temperature
Working Voltage DC9-28V
Peak Power 0.5W
Communication RS485,4-20mA
Electrode Material Platinum, stainless steel, silver chloride
Water Sample Flow Rate >700mL/min, and the flow rate needs to be kept stable
Working Temperature -5℃ ~ +45°℃ (Not frozen)
Disinfectant (Residual Chlorine, Chlorine Dioxide, Ozone)
Measurement Method Reagent-free,Electrochemical,Three-electrode Amperometric Determination System
Range 0~5mg/L or 0~/20mg/L
Resolution 0.001mg/L
Lower Measurement Limit 0.03mg/L or lower
Accuracy ±3% (DPD comparison error ±10% or ±0.05mg/L,whichever is larger)
Repeatability ±3%
Calibration Method Single-point Calibration, Two-point Calibration
Response Time (T90) ≤90 seconds
Temperature
Measurement Method Thermistor Method
Range -5℃ ~ +60℃
Resolution 0.1℃
Accuracy ±0.4℃
Repeatability 0.2℃
Response Time (T90) ≤25 seconds
Calibration Method Single-point Calibration

Water Disinfection Electrode Application Areas

The CL20DPM is engineered for versatility, utilizing its multi-parameter measurement capabilities and advanced membrane design to serve critical roles across various demanding industries:

● Municipal Water Treatment Plants: Ensures public health safety by delivering highly accurate, continuous tracking of free chlorine and residual chlorine. The film-covered design perfectly isolates the electrode, preventing common signal interference found in turbulent municipal flows.
● Industrial Cooling Towers & Boiler Systems: Thrives in harsh, fluctuating temperature environments. Thanks to its heavy-duty gold, silver chloride, and stainless steel construction, it provides exceptional corrosion resistance for long-term industrial water monitoring.
● Food, Beverage & Pharmaceutical Processing: Goes beyond standard chlorine tracking by offering precise measurement of Ozone and Chlorine Dioxide. This unique multi-disinfectant capability makes it an invaluable tool for facilities requiring strict, continuous sanitation and hygiene validation.
● Commercial Swimming Pools & Spas: Acts as the reliable core of automated dosing control systems. With its built-in microprocessor and direct RS485 digital signal output, the CL20DPM integrates seamlessly with PLCs and SCADA systems for real-time, zero-lag water quality management.

Extra Information

Multi-Parameter Free Chlorine Sensor Specifications

The CL20DPM offers comprehensive and highly accurate measurement capabilities for critical water parameters, including free chlorine, residual chlorine, ozone, and chlorine dioxide. Engineered for seamless industrial automation, this sensor features a built-in microprocessor that directly outputs standard RS485 digital signals, ensuring rapid response times and high-fidelity data transmission directly to your PLC or SCADA systems. Designed to operate reliably across fluctuating industrial temperatures and pressures, its technical profile makes it a highly adaptable plug-and-play solution for complex process control environments.

Heavy-Duty Industrial Disinfectant Analyzer Materials

Constructed from premium, corrosion-resistant components such as gold, silver chloride, and durable stainless steel, the CL20DPM guarantees a prolonged operational lifespan even in the harshest fluid conditions. Its advanced film-covered membrane design physically isolates the core sensing electrode from the surrounding medium, preventing biological fouling and common signal interference. This robust material combination not only ensures unparalleled measurement stability but also significantly reduces routine calibration and maintenance frequency, providing tremendous cost-saving benefits for high-volume B2B facilities.

Request Quotes for Digital Disinfectant Probes

Ensure precise water quality control and reduce maintenance with the CL20DPM Free Chlorine sensor. Submit an inquiry form today to get tailored B2B solutions and factory-direct pricing!

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