Online FRC Analyzer

Online FRC Analyzer

Online FRC Analyzer – Description

Our  Analyzers have been the industry standard for years. Known for their accurate and reliable results,  Chlorine Analyzers offer real-time results you can count on.
With a variety of options to choose from our wide range  the Disinfection Analyzer you need for your unique application.

  • Specification

Online FRC (Free Residual Chlorine) Analyzer – Typical Specifications

An Online FRC Analyzer continuously measures the concentration of free residual chlorine in water treatment, drinking water distribution, swimming pools, and industrial water systems.

Specification Typical Value
Parameter Measured Free Residual Chlorine (FRC)
Measurement Principle Amperometric sensor / Colorimetric method
Measuring Range 0–2 ppm, 0–5 ppm, 0–20 ppm (model dependent)
Resolution 0.01 ppm
Accuracy ±2% of reading or ±0.02 ppm
Repeatability ±1% of full scale
Response Time (T90) < 60 seconds
Sample Flow Rate 30–100 L/h
Sample Pressure 0.2–6 bar
Sample Temperature 5°C to 45°C
pH Range 4 to 9 (with compensation)
Display Backlit LCD / Touchscreen
Outputs 4–20 mA, Relay, Digital Output
Communication Modbus RTU, HART, Ethernet (optional)
Power Supply 100–240 VAC, 50/60 Hz or 24 VDC
Protection Class IP65 / IP66
Calibration Manual or automatic
Sensor Material PVC, PTFE, Stainless Steel
Mounting Panel, Wall, or Pipe Mounting
Data Logging Available in advanced models

Key Features

  • Continuous online monitoring of chlorine residuals.
  • Real-time display and alarm functions.
  • Automatic temperature and pH compensation (depending on model).
  • Low reagent consumption (for colorimetric systems).
  • Suitable for remote monitoring through SCADA/DCS integration.

Typical Applications

  • Drinking water treatment plants
  • Water distribution networks
  • Municipal water supply systems
  • Swimming pools and recreational water facilities
  • Cooling water systems
  • Industrial process water monitoring

Common Alarm Functions

  • High chlorine alarm
  • Low chlorine alarm
  • Sensor fault alarm
  • Sample flow failure alarm
  • Communication failure alarm

These are typical industry specifications; exact values depend on the manufacturer and model of the online FRC analyzer.

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