Q46H/79S Total Chlorine Air Stripping Unit

ATi’s Q46H/79S Total Chlorine Air Stripping Unit is a gas-phase, non contacting approach to Total Chlorine monitoring, eliminating the potential for sensor fouling.

Continuous water quality monitoring of Total Chlorine

ATI’s Q46H/79S uses iodometric chemistry, but with a unique sensing technique for measuring released iodine. The system takes the reacted sample containing iodine and uses an air-stripping system to remove molecular iodine from solution.


Employing an Auto-Chem module to provide chemical treatment of the sample, air stripping of the released iodine, gas sample conditioning and iodine gas measurement, the gas-phase iodine from the water sample is channeled through a conditioning module and then directly to an iodine gas sensor. The result is that the iodine measurement is made without any contact between the water sample and the sensor. Contaminants in the sample that cause fouling and contamination of standard electrodes do not affect the Q46 system, providing greater operational reliability

Total Chlorine air stripping Auto-Chem unit

Features & specifications

  • Measurement made without contact between sample and sensor,
  • Total Chlorine is measured using EPA recommended iodometric measurement after reaction of the sample with buffer and potassium iodide.
  • Two isolated 4-20mA outputs are standard. One output is programmable for PID function.
  • Chemistry Module Power Options
  • Three Control Relays, deadband, and time delay.
  •  Communication options for Profibus-DP, Modbus-RTU, or Ethernet-IP.
  • Clear, back-lit large LCD display, providing additional information and programming prompts.

Applications

  • Potable water
  • Wastewater effluent
  • Industrial cooling water

Key benefits

  • Reliable residual chlorine analyser
  • Gas-phase sensing
  • Non-contacting Total Chlorine monitoring
  • Unique sensing technique for measuring released iodine

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