Analog disinfection sensor

Analog disinfection sensor
CCS140 ©Endress+Hauser

Standard sensor for industrial and pool water treatment

CCS140 is the analog sensor for standard measurement of free chlorine. It delivers reliable values even if fluctuations in flow or conductivity occur and allows control of the disinfection loop so that the water is free of germs. At the same time, the sensor is designed for long calibration and service intervals reducing your maintenance effort.

  • Benefits

    • Recalibration intervals approx. 1 to 4 months under constant operating conditions

    • Easy membrane replacement thanks to prefabricated membrane cap

    • Measured values are not affected by conductivity fluctuation

    • Measurement virtually independent of flow rate in...

  • Field of application

    CCS140 measures free chlorine in:

    • Industrial process water
      - Process applications, e.g. bottle rinsing machines

    • Wastewater treatment plants
      - Reuse of cleaned outlet water

    • Utilities of all industries
      - All disinfection measuring points

    • Pool water

Features and specifications



  • Measuring principle

    Free chlorine

  • Application

    Water, Waste water, pools

  • Characteristic

    Amperometric measurement of free chlorine.

  • Measurement range

    0,05 - 20ppm free chlorine; pH 4-8,2

  • Measuring principle

    - closed (membrane covered) measuring cell.
    - Reduction of Hypochloric acid (HOCl) to Chlorid on the cathode with a fixed voltage of 20mV.

  • Design

    Closed amperometric 2-electrode sensor with PTFE-membrane.

  • Material

    Sensor shaft : PVC
    Membrane : PTFE
    Membrane cap : PBT (GF30); PVDF

  • Dimension

    Diameter : appr. 25mm
    Length : 160mm

  • Process temperature

    10°C - 45°C

  • Process pressure

    0bar - 1bar

  • Temperature sensor

    Optional with NTC-temperature sensor

  • Connection

    Fixed cable connection

Documents / Manuals / Software

Accessories / Spare parts

Order code
  • 1
  • 2
  • A
    • Nr A Order code 50005255

      Replacement cartridges CCY 14-WP

      2 pcs., ready made for CCS 140/141/240/241

  • A
    • Nr A Order code 71076921

      Maintenance kit, CCS14x

      Content: Electrolyte 50ml / 1,69 fl.oz.; 2 membrane caps polish foil (2 qualities)

    • Order code 50005181

      Junction box VBC

      for cable extension of chlorine- /dioxide sensor CCS14x / 24x, protection type IP65

    • Order code 50085333

      Measuring cable CYK 71

      For pH-/Redox electrodes or 2-electrode conductivity cells/ 2-electode amperometric cells with temperature sensor. Price per meter (minimum length 5 m).

    • Order code 71257946

      photometer M+N PF-3, desinf. (chlorine)

      colorimetric measurement of free and total chlorine 0,05 .. 6mg/l Disinfection, drinking and process water hand held photometer, IP67-graded, with cuvettes, DPD, according to ISO 7393 deliverey in plastic case, test kit for free and total chlorine included ::hand held photometer for field cal. and verification of desinfection loops

    • Order code COY8-

      Zero-point gel COY8

      Zero point: Verification, calibration, adjustment at zero point of oxygen and disinfection sensors ::Amperometric and optical sensors ::12, 25 and 40mm diameter ::Application in the lab, in the field

  • Successor