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JUMO ecoTRANS pH 03 - transmitter / switching device for pH / Redox voltage and temperature (202723)


  • Can be changed from pH to mV / ORP (Redox voltage)
  • Simple connection of the probes with screw terminals
  • Asymmetric and symmetric connection of the pH electrodes
  • Two electrically isolated analog outputs 0(4)...20 mA / 0(2)...10 V freely
    configurable as current value output for pH, Redox or temperature
  • Switching output: relay changeover contact
  • Monitoring of the medium temperature is possible
  • Simple, guided calibration procedure
  • 3-way isolation (input, output and power supply are electrically isolated from one another)
  • For mounting on DIN rail
  • Calibration timer
  • Supply including calibration certificate


  • General water/waste water management
  • Drinking water treatment
  • Process technology
  • Swimming pool technology
  • Measurement of surface and sea water
  • Fish-keeping


Depending on its configuration, the device measures and controls the pH value or the Redox tension in aqueous solutions. Typical applications are the general water and waste water management, the measurement of drinking and waste water, process water, surface and sea water, swimming pool and well water, professional fish-keeping, etc..
The transmitter is equipped with two analog inputs. The first analog input (main input for pH value or Redox tension resp.) is intended to connect single-rod electrodes or electrodes with a separate reference electrode. The device is also equipped for the connection of Antimon electrodes. RTD temperature probes Pt 100 or Pt 1000 can be connected to the second analog input.
Up to two analog outputs and one relay change-over contact are available. The analog outputs are electrically isolated and assigned to the inputs. The relay contact can either be assigned the main value (pH value or Redox tension) or the temperature.
The devices are operated and configured by means of the keys and the integrated LC display. As an alternative, this can also be comfortably done via the setup connection (notebook / PC) using the optional setup program. The setup program also allows the printout of the configuration data to facilitate machine documentation.
The devices come with a calibration certificate in which the device and adjustment data is documented.

Seminars and webinars on the product

Please take note of our General Terms and Conditions and Clauses for Paragraph 1.4 General Terms and Conditions.

Article number Product description Price of the full version

Setup JUMO ecoTRANS pH03 (PG202599)

Download  245.exe (Demo Version)  (27.3 MB)

additional information

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