HP Potentiostatic Hydrogen Peroxide Sensor

HP SONDA Potentiostatic Hydrogen Peroxide Sensor

The sensor is compatible with the presence of surface-active substances (surfactants).

Measurement range:

  • 0 ÷ 200 ppm

The potentiostatic hydrogen peroxide sensor WP7HUn SONDA HP - is required for measuring hydrogen peroxide in water, supplied with electrolyte, is used in Etatron automatic water treatment plants. Compatible with the presence of surfactants in water. A connecting cable is not included, a non-standard sensor holder is required (on request).

The design and operation of the amperometric (potentiostatic) closed-type sensor SONDA HP - is a closed galvanic cell (similar to a battery), which has a cathode (in gold or platinum) and an anode (silver or copper) . For automatic temperature compensation of the readings of the electrodes, a liquid temperature sensor is integrated. The cell is filled with electrolyte and separated from the medium by a membrane, which prevents the loss of electrolyte and allows only the composition of the liquid to be measured to be measured, which is also a filter from unnecessary and harmful impurities. All that the membrane passes is a source of current generation on the sensor electrodes. The filtered membrane composition enters the electrolyte filling the sensor, where it decomposes at the cathode. The formed ions enter the anode, where they are oxidized - a current arises proportional to the concentration of the analyte in the water, the level of which was necessary to measure. A microcircuit is integrated in the housing, which processes the current coming from the electrodes and the built-in temperature sensor, converts the voltage suitable for processing by the controller of the dosage of reagents into voltage (potential).

HP Hydrogen Peroxide Sensor Specifications:

  • Sensor Type - WP7HUn
  • Type of membrane -, article AME0000901
  • Measuring range 0 - 200 ppm (0 - 200 mg / l)
  • Measurement of hydrogen peroxide in the range of 2 to 11 pH
  • Maximum operating temperature - 45 degrees
  • Workflow 30 - 40 l / h
  • Rated / Max. back pressure in the system - 1/5 bar
  • Automatic temperature compensation - yes


Name Type Article Price without VAT, (€)
SONDA HP hydrogen peroxide sensor, 0-200 ppm WP7HUn ASO0003301 1371
Warning! Connecting cable is not included.

Connecting the HP hydrogen peroxide sensor

A special connecting cable with combined plugs is used to connect the HP hydrogen peroxide sensor to the liquid analyzers.

The connection is as follows:

Connection of the HP hydrogen peroxide sensor

The HP hydrogen peroxide patch cable is not supplied with the chlorine sensor. Connection cable sold separately.