DOSASens CP4.0

Chlorine sensor with membrane-covered, amperometric 3-electrode system. For the measurement of total chlorine with greatly reduced pH-dependence.

  • Measurand(s): NaClO (sodium hypochlorite), Ca(ClO)2 (calcium hypochlorite), Cl2 (chlorine gas), electrolytically generated chlorine
  • Calibration: at the controller, via analytical chlorine determination by DPD-4 method (DPD-1 + DPD-3)
  • Interferences: ClO2 is registered with 100 %, O3  is measured with a slope of approx. 130% (factor 1.3 with regard to the chlorine slope) 
  • Resolution: depending on the sensor type 0.1 …0.001 ppm
  • pH range: 4 … 12 (linear decrease with approx. 5 % per increasing pH-unit) 
  • Pressure range:
    • 0.5 bar, no pressure surges and/or fluctuations (without securing collar)
    • 3,0 bar, no pressure surges and/or fluctuations (with securing collar)
  • Temperature range: 0 … 45 0C (no ice crystals are allowed in the water)
  • Sensor with automatic temperature compensation 
  • Response time: T90 approx. 2 min.
  • Flow rate: approx. 15 … 30 l/h, low flow-dependence
  • Shaft length: standard 175 mm, and up to 220 mm in length (mA-Version)
  • Connection: standard 4-pole plug; for mA-version 2-pole terminal, M12 male, or Modbus RTU with M12 male
  • Material: microporous hydrophilic membrane, PVC-U, Peek, stainless steel
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