Free Chlorine sensors

Sondes de chlore CAA2920 : 4-20 mA / 0 ... 10 ppm

Free Chlorine sensors : CAA2920
4-20 mA / 0 … 10 ppm

CAA2920 sensors are used to measure free chlorine (HOCl and OCl) and organically bound chlorine in swimming pool water or similar water quality. Thanks to its gold working electrode, this sensor is able to measure free chlorine generated with in-line electrolysis system.

Advantages:

  • Amperometric measurement
  • Continuous accurate and reliable analysis
  • Fast execution

Applications

  • Swimming pools
  • Water of similar quality (free of surfactants)
Measure
  • Free chlorine
Measurement range
  • 0,1 – 10 ppm
pH range
  • 5,5 – 9,5 pH
Temperature range
  • 5 – 45°C (with temperature compensated)
Sensitivity to cyanuric acid
  • No sensitivity if > 5mg/l of cyanuric acid
Maximum pressure and
supply flow
  • 3 bars
  • Mini: 20 l/h
  • Maxi: 100 l/h
  • Recommanded: 30 l/h
Starting time and
definitive calibration
  • First calibration after 2 h
  • After 24 h
Membrane cap lifetime 
  • Currently 1 year (according to water quality)
Membrane and Electrolyte
  • Membrane: CAA2509
  • Electrolyte: CAA2511
Material and
protection type
  • Black PVC
  • IP 65
Supply voltage and
output signal
  • 16 – 24 VDC
  • 4-20 mA

Price request