ProMinent Fluoride Monitoring System

ProMinent® Fluoride Monitoring System

Reagent-less monitoring of Fluoride 
The ProMinent D1C Fluoride Monitoring System is designed for reagentless measurement of residual fluoride in potable and process waters.

The DULCOMETER® D1C fluoride meter carries out potentiometric metering with the aid of an ion-selective electrode (ISE) and a reference electrode

This panel-mounted complete measuring station is adjusted to the special requirements in municipal and industrial applications. As a plug & play module, it can easily and quickly be installed and commissioned.


  • Potable water treatment
  • Bottled water


Features and benefits

  • Reagentless measurement of fluoride
  • Complete component system
  • ProMinent D1C & Sensor Technology
  • Output signal to chart recorder
  • Fluoride sensor measurement range to 10 PPM
  • Low pH dependency of fluoride measurement.
  • Rapid response and short run-in time of fluoride electrode.
  • No chemicals used for calibrating or conditioning the fluoride electrode.


Components of the Monitoring System.
Single channel controller D1C

  • Electrical supply 230 V 50/60 Hz or 115 V 50/60 Hz
  • Pause contact reserved for limit contact measuring water
  • Analog output 4-20 mA for measured value
  • Automatic temperature compensation
  • Alarm relay and two limit relays
  • Sensors, measurement transducers and in-line probe housings
  • Fluoride sensor type FLE 010 SE
  • Reference electrode type REFP-SE
  • Temperature sensor type Pt 100 SE for automatic temperature compensation
  • Measurement transducer 4-20 mA FV1 for fluoride sensor
  • In-line sensor housing DLG IV

PVC piping with

  • Rotameter with limit contact
  • Sample tap
  • Isolation valve on inlet side


Technical Data

  • Measurement range: 0.05 to 10 ppm fluoride
  • pH Operating Range: 5.5 to 8.5 pH
  • Temperature Range: 34° to 95° F
  • Max. Operating Pressure: 101.5 psi (Note: the maximum admissible operating pressure for the monitoring system is 14.5 psi, determined by the in-line sensor housing)
  • Sample Water Flow Rate: 12-16 GPH


Related Products. 
Microprocessor-controlled Photometer DT1, DT2B, DT3 and DT4 serve to calibrate amperometric and fluoride measuring systems by comparison measurement. They are pre-assigned to defined verification procedures and include various measurement parameters. With little investment of time, accurate and reproducible results can be achieved.

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