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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.

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 sensors for hydrogen peroxide (H2O2): PER1, PEROX H2.10 P and PEROX H 3E.

The PER1-mA sensor is resistant to contaminated water and can be used in water with a temperature of up to 50 °C. It is a compact sensor with a built-in transducer and temperature correction, and has a measuring range of up to 100,000 mg/l.

The PEROX H2.10 P sensor type displays no cross-sensitivity to chlorine and, with its fast response time and separate temperature measurement, can be used to control fast processes in clear water, even with the temporary absence of hydrogen peroxide.

The PEROX H 3E sensor with a built-in transducer and 3-electrode system shares the benefits of the PEROX H2.10 P sensor and can also be used for reliable measurement above 0.2 ppm H2O2 as well as being suited to moderately contaminated water.

Your Benefits

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

Technical Details

  • pH-range of 1-11 (variable), suitable for use at a constant pH value of up to pH 12 (types PER 1, PEROX H2.10 P)
  • PER1 and PEROX H-3E sensor types can also be used with contaminated process media
  • Maximum operating temperature of up to 50 °C (type PER 1)

Overview of sensors for hydrogen peroxide

Features Type
PER 1-mA		 PEROX H2.10 P PEROX H3 E
Resistance to chemicals and films (dirt, limescale, surfactants) yes, exceptions: H2S, sulfides limited, but resistant to H2S Improved compared to PEROX H2.10 P
Max. temperature
of shaft/diaphragm material		 up to 50 °C
PVC-C/ silicone		 up to 40 °C
stainless steel/PVDF		 up to 45 °C
PVC-U/PET
Transducer integrated in the shaft must be attached to the sensor integrated in the shaft
Temperature correction integrated in the shaft
simple to use		 separate Pt 100
rapid temperature correction		 separate Pt 100
rapid temperature correction
Measuring range Standard type: 2,000 ppm
Special types: up to 10 %		 Switch on transducer
20, 200, 2,000 ppm		 Various sensors
10, 50, 200, 500 ppm
Response time as t90 8 min. < 45 s < 45 s
Long-term operation without H2O2 not possible possible possible
Cross-sensitivity
Free chlorine and peracetic acid		 yes < 5 % < 5 %
Interference by sulfites no < 30 % < 30 %

Hydrogen peroxide sensor PER 1-mA

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

  • Hydrogen peroxide as the measured variable, with measuring ranges from 20 ppm to 100,000 ppm (10%. With > 2%, as special versions) available
  • Diaphragm-covered sensor minimises faults caused by changing flow or substances in the water
  • Resistance to films of dirt thanks to use of a pore-free diaphragm
  • Can be used in wide pH range of 1…11
  • Operating temperature up to 50 °C
Measured variable Hydrogen peroxide
Calibration Photometric with manual DT3B photometer
pH-range 1.0…11.0
Temperature 0…50 °C
Admissible temperature fluctuation < 0.3 °K/min
Response time sensor t90 approx. 480 sec
Max. pressure 1.0 bar
Flow DGMa, DLG III: 30…80 l/h
BAMa: 5…60 l/h (depending on design)
Supply voltage 16…24 V DC (2-wire)
Output signal 4…20 mA temperature-compensated, uncalibrated, not electrically isolated
Selectivity Hydrogen peroxide selective towards sulphite
Cross sensitivity Ozone, chlorine dioxide, peracetic acid, chlorine, bromine
Process integration Bypass: open outlet or return of the sample water into the process line
Sensor fitting BAMa, DGMa, DLG III
Controllers D1C, DAC, diaLog X
Typical applications Cooling and wastewater treatment, bleaching processes, H2O2 product qualification, water with higher H2O2 concentrations of up to 100,000 ppm.
Resistance to Salts, acids, alkalis, surfactants, dirt films, not against hydrogen sulphide (H2S)
Measuring principle, technology Amperometric, 2 electrodes, diaphragm-covered
Measuring range Order no.
PER 1-mA-2000 ppm 20…2,000 mg/l 1022510

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

Hydrogen peroxide sensor PEROX H2.10 P-mA

Sensor for measuring 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 in a wide pH range of 2.5…10.

Your Benefits

  • Measured variable hydrogen peroxide without cross-sensitivity to chlorine
  • Diaphragm-covered sensor minimises faults caused by changing flow
  • Fast processes can be controlled through the sensor’s rapid response time in conjunction with fast external temperature measurement for temperature correction
  • Can be used in wide pH range of 2.5…10
  • Reliable measurement even after periods of absence of hydrogen peroxide thanks to pulsed, self-regenerating measuring electrode
Measured variable Hydrogen peroxide
Calibration Photometric with manual DT3B photometer
Measuring range 1…20, 10…200, 100…2000 mg/l, switchable
pH-range 2.5…10.0
Temperature 0…40 °C
Admissible temperature fluctuation < 1 °K/min (with external T measurement)
Response time sensor t90 approx. 20 sec
Min. conductivity For measuring range 20 mg/l: 5 µS/cm
For measuring range 200 mg/l: 200 µS/cm
Up to 1,000 mg/l: 500 µS/cm
Up to 2,000 mg/l: 1 mS/cm
Max. pressure 2.0 bar
Flow DGMa, DLG III: 30…60 l/h
BAMa: 5…100 l/h (depending on design)
Supply voltage 16…24 V DC (three-wire system)
Output signal 4…20 mA not temperature-compensated, uncalibrated, not electrically isolated
Selectivity Hydrogen peroxide selective towards free chlorine
Process integration Bypass: open outlet or return of the sample water into the process line
Sensor fitting BAMa, DGMa, DLG III
Controllers DAC, diaLog X, D1C (without temperature correction)
Typical applications Exhaust air scrubbers, treatment of clear and chemically uncontaminated water, controls with the necessary very short response times
Resistance to Salts, acids, lyes, surfactants.
Measuring principle, technology amperometric, 2 pulsing electrodes, diaphragm-covered
Order no.
PEROX-H2.10 P-mA 792976
PEROX transducer V1 for D1Ca 1034100
PEROX Transducer V2 1047979

Hydrogen peroxide sensor PEROX H 3E-mA

Sensor for the measurement of hydrogen peroxide without cross-sensitivity to free chlorine peracetic acid. Suitable for use with fast control processes, even in moderately contaminated water, and for reliable measurement from 0.2 ppm H2O2

Your Benefits

  • Measured variable hydrogen peroxide without cross-sensitivity to free chlorine and peracetic acid
  • Sensitive measuring range from 0.2 mg/l
  • Fast processes can be controlled through the sensor’s rapid response time in conjunction with fast external temperature measurement for temperature correction
  • Reliable measurement even after periods of absence of hydrogen peroxide thanks to pulsed, self-regenerating measuring electrode
  • Low measuring range provided by a system containing 3 electrodes
  • Membrane-covered sensor minimises faults caused by changing flow
  • An integrated transmitter and the signal cable’s plug-in connector make for an easy installation
Measured variable Hydrogen peroxide
Calibration Photometric with manual DT3B photometer
pH-range 2.5…8.0
Temperature 0…45 °C
Admissible temperature fluctuation < 1 °K/min (with external T measurement)
Response time sensor t90 < 45 s
Electrolytic conductivity 0.05…50 mS/cm
Max. pressure 3.0 bar
Flow DGMa, DLG III: 30…60 l/h
BAMa: 5…100 l/h (depending on design)
Supply voltage 16…24 (two-wire technology) V DC
Output signal 4…20 mA not temperature-compensated, uncalibrated, not electrically isolated
Electrical Connection via a 4-pin plug on the sensor via an open-ended signal cable on the unit
Selectivity Hydrogen peroxide selective to free chlorine, peracetic acid, sulphite
Process integration Bypass: open outlet or return of the sample water into the process line
Sensor fitting BAMa, DGMa, DLG III
Controllers diaLog DACb, diaLog X
Typical applications Swimming pool, plant irrigation water, chlorine elimination. Can also be used for moderately contaminated water, controls with the necessary short response times and low H2O2 concentrations
Resistance to Salts, acids, alkalis, surfactants, dirt films
Measuring principle, technology amperometric, 3 pulsing electrodes, diaphragm-covered
Measuring range Order no.
PEROX H-3E-10ppm 0.10…10.0 mg/l 1058563
PEROX H-3E-50ppm 0.50…50.0 mg/l 1105779
PEROX H-3E-200ppm 2.0…200 mg/l 1105778
PEROX H-3E-500ppm 5.0…500 mg/l 1117570

DULCOTEST Sensors for Hydrogen Peroxide Kataloğu

Deha Smart

Meclis Mah. Atatürk Cad. B2 No:109 G İç Kapı No:13 Sancaktepe / İstanbul

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