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DULCOTEST® Sensors for Hydrogen Peroxide

Graduated measuring ranges 0.2 – 2,000 mg/l, special measuring ranges up to 100,000 mg/l

Hydrogen peroxide measurement with DULCOTEST® sensors: Efficient and reliable determination of the concentration of hydrogen peroxide - can be used in a wide range of applications.

Product description

Reliable online measurement of hydrogen peroxide – with DULCOTEST® sensors.

You have the choice of three types of sensor for applications with different requirements with our DULCOTEST® hydrogen peroxide Due to its complete biodegradability, hydrogen peroxide is a disinfectant and oxidising agent ... more in the glossary sensors PER1, PEROX and PEROX H 3E.

The sensor PER1-mA is resistant to contaminated water and can be used in water up to a temperature of 50°C. As a compact sensor with integrated transducer and temperature correction, it has a measuring range Defined measurable range within which the errors in a measured variable remain within defined limits. more in the glossary of up to 100,000 mg/l.

The PEROX type sensor has no cross-sensitivity to chlorine and, with its rapid response time and separate temperature measurement, it can be used to control fast processes in clear water, even with the intermittent absence of hydrogen peroxide Due to its complete biodegradability, hydrogen peroxide is a disinfectant and oxidising agent ... more in the glossary.

The sensor type PEROX H 3E with integrated transducer and 3-electrode system has the benefits of type PEROX and can also be used in moderately contaminated water in addition to reliable measurement above 0.2 ppm H2O2.

Your benefits

  • Precise, real-time amperometric measurement for efficient process control (short response time)
  • Amperometric measuring means no turbidity or discolouration
  • Stable zero point means no drift
  • Temperature compensation eliminates faults caused by the influence of temperature
  • Diaphragm-covered electrodes for reduced dependence on flow and cross-sensitivities
  • Short run in period for quick commissioning

Field of application

  • Exhaust air scrubbers
  • Cooling circuits:
  • Groundwater remediation
  • Potable water oxidation
  • Process water disinfection
  • Waste water treatment (advanced oxidation)
  • Waste water monitoring e.g. in the semiconductor industry
  • Chemical bleaches, e.g. paper, textiles
  • Dechlorination, e.g. in chemical processes
  • Landfill seepage water
  • Biotechnology, greenhouses, pharmaceuticals
  • Swimming pool water (active oxygen method)

    Technical Details

    • pH-range of 1-11 (variable), can be used with a constant pH value of up to pH 12 (Types PER 1, PEROX)
    • Sensor types PER1 and PEROX H-3E can also be used for contaminated process media
    • Maximum operating temperature of up to 50 °C (type PER 1)

    Hydrogen Peroxide Sensor PER1

    Sensor for the measurement of hydrogen peroxide even in chemically contaminated and polluted water. Available with measuring ranges for medium to very high concentrations

    Your benefits

    • Measured variable hydrogen peroxide, with measuring ranges from 20 ppm to 100,000 ppm (10%) available
    • Diaphragm-covered sensor minimises faults caused by changing flow or ingredients in the water
    • Resistance to films of dirt by pore-free diaphragm
    • Operating temperature up to 50 °C
    Measured variableHydrogen peroxide
    CalibrationPhotometric with manual DT3B photometer
    pH range1.0 … 11.0
    Cross sensitivityOzone, chlorine dioxide, peracetic acid, chlorine, bromine
    Temperature0 … 50 °C
    Admissible temperature fluctuation< 0.3 °C/min
    Response time sensor t90approx. 480 sec
    Min. conductivity0.05 mS/cm
    Max. pressure1.0 bar
    Intake flow20…100 l/h
    Supply voltage16...24 V DC (two-wire system)
    Output signal4…20 mA temperature-compensated, uncalibrated, not electrically isolated
    SelectivityHydrogen peroxide selective towards sulphite
    InstallationBypass: open outlet or return of the sample water into the process line
    Sensor fittingDGM, DLG III
    Measuring and control equipmentD1C
    Typical applicationsCooling and waste water treatment, plant irrigation water, bleaching processes, H2O2 product qualification, water with higher H2O2 concentrations of up to 100,000 ppm.
    Resistance toSalts, acids, alkalis, surfactants, dirt films, not against hydrogen sulphide (H2S)
    Measuring principle, technologyAmperometric, 2 electrodes, membrane-covered
    Measuring rangeOrder no.
    PER 1-mA-2000 ppm20.0…2,000.0 mg/l1022510

    Important note: Measuring ranges up to 100,000 ppm on request

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

    Hydrogen Peroxide Sensor PEROX

    Sensor for the measurement of hydrogen peroxide without cross-sensitivity to chlorine. It can also be used for fast control processes even with the temporary absence of hydrogen peroxide in clear water.

    Your benefits

    • Measured variable hydrogen peroxide without cross sensitivity to chlorine
    • Diaphragm-covered sensor minimises faults caused by changing flow
    • Control of fast processes through rapid response time by the sensor in conjunction with fast external temperature measurement for temperature correction
    • Reliable measurement even after periods of absence of hydrogen peroxide by pulsed, self-regenerating measuring electrode
    Measured variableHydrogen peroxide
    CalibrationPhotometric with manual DT3B photometer
    Measuring range1...20, 10...200, 100...2000 mg/l, switchable
    pH range2.5 … 10.0
    Temperature0 … 40 °C
    Admissible temperature fluctuation< 1 °K/min (with external T measurement)
    Response time sensor t90approx. 20 sec
    Min. conductivity

    With 20 mg/l range: 5 µS/cm

    With 200 mg/l range: 200 µS/cm

    Up to 1,000 mg/l: 500 µS/cm

    Up to 2,000 mg/l: 1 mS/cm

    Max. pressure2.0 bar
    Intake flow30…60 l/h
    Supply voltage16...24 V DC (3-wire system)
    Output signal4…20 mA not temperature-compensated, uncalibrated, not electrically isolated
    SelectivityHydrogen peroxide selective towards free chlorine
    InstallationBypass: open outlet or return of the sample water into the process line
    Sensor fittingDGM, DLG III
    Measuring and control equipmentDAC
    Typical applicationsExhaust air scrubbers, treatment of swimming pool water, potable water, controls with requisite very short response times.
    Resistance toSalts, acids, lyes, surfactants.
    Measuring principle, technologyamperometric, 2 pulsing electrodes, diaphragm-covered
    Order no.
    H2O2 sensor PEROX-H2.10 P792976
    PEROX transducer V1 for D1Ca1034100
    PEROX Transducer V21047979

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    Overview

    Reliable online measurement of hydrogen peroxide – with DULCOTEST® sensors.

    You have the choice of three types of sensor for applications with different requirements with our DULCOTEST® hydrogen peroxide Due to its complete biodegradability, hydrogen peroxide is a disinfectant and oxidising agent ... more in the glossary sensors PER1, PEROX and PEROX H 3E.

    The sensor PER1-mA is resistant to contaminated water and can be used in water up to a temperature of 50°C. As a compact sensor with integrated transducer and temperature correction, it has a measuring range Defined measurable range within which the errors in a measured variable remain within defined limits. more in the glossary of up to 100,000 mg/l.

    The PEROX type sensor has no cross-sensitivity to chlorine and, with its rapid response time and separate temperature measurement, it can be used to control fast processes in clear water, even with the intermittent absence of hydrogen peroxide Due to its complete biodegradability, hydrogen peroxide is a disinfectant and oxidising agent ... more in the glossary.

    The sensor type PEROX H 3E with integrated transducer and 3-electrode system has the benefits of type PEROX and can also be used in moderately contaminated water in addition to reliable measurement above 0.2 ppm H2O2.

    Your benefits

    • Precise, real-time amperometric measurement for efficient process control (short response time)
    • Amperometric measuring means no turbidity or discolouration
    • Stable zero point means no drift
    • Temperature compensation eliminates faults caused by the influence of temperature
    • Diaphragm-covered electrodes for reduced dependence on flow and cross-sensitivities
    • Short run in period for quick commissioning

    Application

    Technical Data

    Downloads

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