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DULCOTEST® Sensors for Chlorite

Graduated measuring ranges 0.02 – 2 mg/l

Chlorite measurements with DULCOTEST® sensors in disinfection processes involving chlorine dioxide – high process reliability guaranteed.

Product description

Reliable online measurement of chlorite – with DULCOTEST® sensors.

As a by-product of the treatment of water with chlorine dioxide Chlorine dioxide is an exceptionally reactive gas, which is not stored due to its instability ... more in the glossary and in potable water generation, chlorite is subject to monitoring requirements in many countries.

Our product line of DULCOTEST® chlorite sensors provides two types of sensor for different measuring ranges. In the treatment of potable water previously treated with chlorine dioxide Chlorine dioxide is an exceptionally reactive gas, which is not stored due to its instability ... more in the glossary, the chlorite level must be monitored before the water enters the distribution network to ensure it does not exceed the limit of 0.2 ppm. The sensitivity and precision of sensor type CLT-mA-0.5ppm have been optimised for this measuring task. The suitability of the sensor type for safety-relevant monitoring was confirmed in an independent study by the DVGW, with the measuring method being expressly recommended for this application.

Sensor type CLT-mA-2ppm with a measuring range Defined measurable range within which the errors in a measured variable remain within defined limits. more in the glossary up to 2 ppm is also available for the monitoring of metering processes involving higher chlorine dioxide Chlorine dioxide is an exceptionally reactive gas, which is not stored due to its instability ... more in the glossary concentrations

Your benefits

  • Precise, real-time amperometric measurement for efficient process control
  • Amperometric measuring means no clouding or discolouration
  • No cross sensitivity in the presence of chlorine dioxide, chlorine or chlorate
  • High sensitivity for trace measurement in waterworks up to 0.5 ppm (type CLT 1-mA-0.5 ppm)
  • Greater measuring range up to 2 ppm for other applications in combination with chlorine dioxide treatment and particularly for quality inspection of chlorine dioxide generators (type CLT 1-mA-2 ppm)
  • Stable zero point means no drift

Technical Details

  • Evaluation limit of type CLT-mA-0.5ppm < 0.02 mg/l
  • pH range: 6.5 … 9.5
  • Temperature: 1º … 40º C
  • Pressure max. 1.0 bar
  • Signal outputs: CLT1-mA: 4-20 mA signal, temperature-compensated, uncalibrated, not electrically isolated; CLT1-CAN: digital, temperature-compensated, uncalibrated, electrically isolated.

Chlorite Sensor, CLT 1-mA

Sensor for monitoring the disinfection by-product chlorite in compliance with potable water regulations. Without cross-sensitivity towards chlorine dioxide, chlorate and chlorine. For operation on controllers with 4-20 mA input

Your benefits

  • Online monitoring of the disinfection by-product chlorite
  • Diaphragm-covered sensor minimises faults caused by changing flow or ingredients in the water
  • No interference by chlorine dioxide/chlorine/chlorate
  • Online monitoring improves process reliability
  • Online monitoring replaces expensive laboratory analysis
Measured variableChlorite anion (ClO2)
Reference methodDPD method, chlorite in the presence of chlorine dioxide
pH range6.5 … 9.5
Cross sensitivityreducing chemicals, e. g. Fe2+, Mn2+
Temperature1 … 40 °C
Max. pressure1.0 bar
Intake flow30…60 l/h (in DGM or DLG III)
Supply voltage16...24 V DC (two-wire technology)
Output signal4…20 mA ≈ measuring range, temperature-compensated, uncalibrated, not electrically isolated
SelectivityChlorite selective towards chlorine dioxide, chlorate and free chlorine
InstallationBypass: open sample water outlet
Sensor fittingDGM, DLG III
Measuring and control equipmentD1C, DAC
Typical applicationsMonitoring of chlorine dioxide treated potable water or similar water. The selective measurement of chlorite alongside chlorine dioxide, chlorine and chlorate is possible.
Resistance tosurfactants
Measuring principle, technologyAmperometric, 2 electrodes, membrane-covered
Measuring rangeOrder no.
CLT 1-mA-0.5 ppm0.02…0.5 mg/l1021596
CLT 1-mA-2 ppm0.10…2.0 mg/l1021595

Chlorite sensors complete with 50 ml of electrolyte.

Note: A mounting kit (order no. 815079) is required for initial fitting of the chlorite sensors in the in-line probe housing DLG III.

The DT4 photometer is recommended for calibration of the chlorite sensor.

Chlorite Sensor CLT 1-CAN

Sensor for monitoring the disinfection by-product chlorite in compliance with potable water regulations. Without cross-sensitivity towards chlorine dioxide, chlorate and chlorine. For use on controllers with CAN-bus connection

Sensors for connection to a CAN interface (e.g. Disinfection Controller)

Your benefits

  • Online monitoring of the disinfection by-product chlorite
  • Diaphragm-covered sensor minimises faults caused by changing flow or ingredients in the water
  • No interference by chlorine dioxide/chlorine/chlorate
  • Online monitoring improves process reliability
  • Online monitoring replaces expensive laboratory analysis
  • Operation on the CAN-bus with all the associated benefits
Measured variableChlorite anion (ClO2-)
Reference methodDPD method, chlorite together with chlorine dioxide
pH range6.5 … 9.5
Cross sensitivityreducing chemicals, e. g. Fe2+, Mn2+
Temperature1 … 40 °C
Max. pressure1.0 bar
Intake flow30…60 l/h (in DGM or DLG III)
Supply voltageVia CAN interface (11-30 V)
Output signal Uncalibrated, temperature-compensated, electrically isolated
Response time sensor t903 min.
SelectivityChlorite selective towards chlorine dioxide, chlorate and free chlorine
InstallationBypass: open sample water outlet
Parts number/Identity codeDGM, DLG III
Measuring and control equipmentDULCOMARIN® 3
Typical applicationsMonitoring of potable water or similar water treated with chlorine dioxide. Selective measurement of chlorite and chlorine dioxide, chlorine and chlorate is also possible.
Resistance tosurfactants
Measuring principle, technologyAmperometric, 2 electrodes, membrane-covered
Measuring rangeOrder no.
CLT 1-CAN-2 ppm0.05…2.0 mg/l1041156
*Complete with 100 ml of electrolyte, connecting cable - CAN M12 5-pin 0.5 m, T-distributor M12 5-pin CAN

Downloads for DULCOTEST® Sensors for Chlorite

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Overview

Reliable online measurement of chlorite – with DULCOTEST® sensors.

As a by-product of the treatment of water with chlorine dioxide Chlorine dioxide is an exceptionally reactive gas, which is not stored due to its instability ... more in the glossary and in potable water generation, chlorite is subject to monitoring requirements in many countries.

Our product line of DULCOTEST® chlorite sensors provides two types of sensor for different measuring ranges. In the treatment of potable water previously treated with chlorine dioxide Chlorine dioxide is an exceptionally reactive gas, which is not stored due to its instability ... more in the glossary, the chlorite level must be monitored before the water enters the distribution network to ensure it does not exceed the limit of 0.2 ppm. The sensitivity and precision of sensor type CLT-mA-0.5ppm have been optimised for this measuring task. The suitability of the sensor type for safety-relevant monitoring was confirmed in an independent study by the DVGW, with the measuring method being expressly recommended for this application.

Sensor type CLT-mA-2ppm with a measuring range Defined measurable range within which the errors in a measured variable remain within defined limits. more in the glossary up to 2 ppm is also available for the monitoring of metering processes involving higher chlorine dioxide Chlorine dioxide is an exceptionally reactive gas, which is not stored due to its instability ... more in the glossary concentrations

Your benefits

  • Precise, real-time amperometric measurement for efficient process control
  • Amperometric measuring means no clouding or discolouration
  • No cross sensitivity in the presence of chlorine dioxide, chlorine or chlorate
  • High sensitivity for trace measurement in waterworks up to 0.5 ppm (type CLT 1-mA-0.5 ppm)
  • Greater measuring range up to 2 ppm for other applications in combination with chlorine dioxide treatment and particularly for quality inspection of chlorine dioxide generators (type CLT 1-mA-2 ppm)
  • Stable zero point means no drift

Application

Technical Data

Downloads

Contact us

Ralf Kiermaier

Vice President Sales and Marketing, ProMinent GmbH

»Please send us your request! We will contact you shortly.«

+49 6221 842 0  Send request   

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