Active Chlorine Sensor for Hot Water Systems

Special active chlorine measurement for hot water systems

Active amperometric chlorine sensors (hypochlorous acid) HOCl are used to measure the hypochlorous acid present in hot water systems and are specially adapted for measurements under pressure (up to 8 bars). These probes are generally used for monitoring chlorination against legionella.

Technical Specification

Applications

  • Process Water
  • Charged water
  • Polluted water

Measuring range

  • 0 – 2 ppm (PPMAC002HP)
  • 0 – 10 ppm (PPMAC010HP)

pH range

  • 5 – 9 pH

Temperature range

  • 40 – 50°C (with temperature compensation)

Disturbance by other oxidants

  • Chlorine dioxide (4x)
  • Chlorites
  • Ozone (9x)

Maximum pressure and flow rate

  • 8 bar
  • Mini : 20 l/h
  • Maxi : 100 l/h
  • Recommended : 30 l/h

Start-up time and final calibration

  • First calibration after 2 hours
  • After 24 hours

Membrane lifetime

  • Approximately 1 year (depending on water quality/concentration)

Material and type of protection

  • PPE Beige
  • IP 65

Power supply and output signal

  • 10 – 25 VDC
  • 4-20 mA