Online Chlorine Analyzer + Chlorine Sensor
CL300-C1 + CL300-S1

Online Chlorine Analyzer + Chlorine Sensor

The CL300-C1 Online Chlorine Analyzer is designed for continuous monitoring of residual chlorine and temperature in water treatment processes, ensuring effective disinfection control and water quality compliance. It utilizes advanced potentiometric measurement technology, enabling stable and reagent-free operation with minimal maintenance requirements. The analyzer provides real-time, accurate measurement, making it suitable for municipal, industrial, and commercial applications. With seamless integration capabilities and a robust design, it ensures reliable performance and long-term operation even in demanding environments.

The chlorine electrode is a chemical sensor based on the constant potential electrolytic principle, designed to provide accurate and stable chlorine measurements. It employs an advanced non-membrane constant voltage technology, eliminating the need for diaphragm or reagent replacement, thereby reducing maintenance requirements.

The electrode utilizes a three-electrode system, consisting of a working electrode, counter electrode, and reference electrode. This design overcomes the limitations of conventional two-electrode systems, where maintaining a stable potential can be challenging and may result in measurement errors.

By incorporating a reference electrode, the system continuously regulates the potential difference between the working and reference electrodes through an internal voltage control circuit. This ensures a constant and stable electrode potential, leading to improved measurement reliability.

As a result, the sensor delivers high accuracy, enhanced stability, extended operational life, and minimizes the need for frequent calibration, making it highly suitable for continuous online monitoring applications.

  • Provides instant and continuous measurement of free or total chlorine in water without manual testing.
  • Detects very low chlorine levels (ppm range) with high precision, ensuring proper disinfection control.
  • Built-in compensation reduces measurement errors caused by changes in pH and temperature.
  • Supports outputs like 4–20 mA, RS485, Modbus, enabling easy integration with PLC/DCS systems.
  • Durable sensor design ensures stable performance with minimal maintenance and longer lifespan.
  • Provides configurable alarms and control signals for automatic dosing and process safety.

  • Used to monitor chlorine for safe and hygienic water supply.
  • Ensures proper disinfection before water discharge. 
  • Maintains safe chlorine levels for public health.
  • Used in industries like chemical, paper, and power plants for water quality control.
  • Applied in washing and disinfection of fruits, vegetables, and equipment.
  • Prevents microbial growth and scaling in cooling towers and pipelines.

 

  • Measurement range: 0.05~20.00mg/L ; 0.05~20.00ppm
  • Measurement unit: Potentiometric method
  • Resolution: 0.001mg/L ; 0.001ppm
  • Basic error: ±1%F.S
  • Temperature: -10-150.0 Degree C
  • Temperature Resolution: 0.1 Degree C
  • Temperature Basic error: ±0.3 Degree C
  • Current output: 2 groups: 4-20mA
  • Signal output: RS485 Modbus RTU
  • Other functions: Data record &Curve display
  • Three relay control contacts: 2 groups:5A 250VAC,5A 30VDC
  • Optional power supply: 85~265VAC,9~36VDC,power consumption≤3W
  • Working conditions: No strong magnetic field interference around except the geomagnetic field.
  • Working temperature: -10 to 60 Degree C
  • Relative humidity: ≤90%
  • Waterproof rating: IP65
  • Weight: 0.6kg
  • Dimensions: 98×98×130mm
  • Range: 0-20mg/L
  • Temp range: 0-50℃
  • Signal Output: mV (Analog)
  • Reference system: Double-salt bridge reference system, ring liquid contact boundary
  • Shell material: Glass, platinum
  • Cable material: PVC
  • Size: 12*153mm
  • Principle: Potentiostatic
  • Installation: Circulation type installation, PG 13.5 thread
  • Accuracy: ±1%F.S.
  • Storage temp: 0-45℃
  • Pressure: ≤0.3Mpa
  • Cable length: Standard with 5 meters, which can be extended
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