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DULCOTEST® Fluoride Sensors

Graduated measuring ranges 0.05 – 100 mg/l

Accurate measurement of fluoride with DULCOTEST® sensors in the monitoring of potable water and waste water, suitable for pH values up to 9.5.

Product description

Reliable online measurement of fluoride – with DULCOTEST® sensors

In some countries fluoride is monitored when added to potable water, but also generally during the treatment of industrial waste water, e.g. in the semiconductor industry and electroplating.

Our product line of DULCOTEST® fluoride sensors provides two types of sensor, optimised for these applications.

The sensor consists of a fluoride transducer, the connectable transducer of a reference electrode and a separate temperature measuring unit. The sensor is based on the potentiometric measuring principle with the help of an ion-selective electrode (ISE) and a reference electrode.

The measuring point is available fully mounted on our measuring and control system DULCOTROL® with the sensor fitting and controller DULCOMETER® diaLog DACb.

Your benefits

  • Precise, real-time potentiometric measurement for efficient process control (short response time)
  • Can be used up to a pH of 9.5
  • Selective LaF3 crystal eliminates interference caused by cross-sensitivities
  • Rapid external temperature compensation eliminates interference caused by influence of temperature
  • Potentiometric principle eliminates interference caused by flow changes
  • Potentiometric measuring principle enables quick commissioning

Technical Details

  • pH value: 5.5…9.5
  • Temperature: 1…35 °C
  • Pressure: max. 6 bar, 3 bar (30 °C)

Fluoride Sensor FLEP 010-SE / FLEP 0100-SE

Highly selective, online fluoride sensor, for the fluoridation of potable water and monitoring of industrial waste water in the semiconductor industry and electroplating with a pH of up to 9.5

Your benefits

  • Highly selective measurement of fluoride by LaF3 single crystal silicon
  • Unique pH range of up to pH 9.5 by optimisation of the electrolyte
  • Two measuring ranges available: 0.05 -10 ppm for potable water; 0.5 -100 ppm for waste water. Higher measuring ranges on request

Technical Details

A 4-20 mA transmitter, a reference electrode and sensor for temperature compensation are needed in addition to the fluoride electrode.

Measured variable

Fluoride ion concentration

Reference method

Photometrically (Photometer DT2C)

Measuring range

With transmitter FPV1:0.05...10 mg/l
With transmitter FP100V1:0.5...100 mg/l

pH-range

5.5…9.5

Temperature

1…35 °C

Max. pressure

7.0 bar (no pressure surges)

Min. conductivity

100 µS/cm

Shaft diameter

12.0 mm

Installation length

120 mm

Thread

PG 13.5

Electrical Connection

SN6 plug-in head

Enclosure rating

IP 65

Process integration

Bypass: open outlet or return of the sample water into the process line, inline: direct installation into the pipework; fixed or replaceable (replaceable fitting), tank, channel: Immersion in the immersion tube

Flow

10…200 l/h

Intake flow (recommended)

20 l/h

Response time T95 (open)

30 s (for conc. > 0.5 ppm)

Shelf life

6 months

Sensor fitting

Bypass fitting DLG IV

Controllers

D1C, DAC, DULCOMARIN®

Typical applications

Monitoring the fluoridation of potable water in waterworks, industrial waste water in the semiconductor industry and electroplating.

Resistance to

Disinfectant, solids content (turbid types of water)

Measuring principle, technology

Direct potentiometric measurement, 2 electrodes, gel electrolyte, ceramic diaphragm, separate temperature measurement needed for temperature compensation. Low pH values of < 5 reduce the concentration of free fluoride ions by forming undissociated hydrofluoric acid (HF). High pH values > 9.5 influence the signal and the slope at concentrations in the lower ppm range. The calibration line flattens off there (gentler slope) and the fluoride sensor is outside its linear range.

Order no.

FLEP 010-SE / FLEP 0100-SE

1028279

Note: Measuring ranges from 5 … 1,000 mg/l and 50 … 10,000 mg/l available on request.

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Overview

Reliable online measurement of fluoride – with DULCOTEST® sensors

In some countries fluoride is monitored when added to potable water, but also generally during the treatment of industrial waste water, e.g. in the semiconductor industry and electroplating.

Our product line of DULCOTEST® fluoride sensors provides two types of sensor, optimised for these applications.

The sensor consists of a fluoride transducer, the connectable transducer of a reference electrode and a separate temperature measuring unit. The sensor is based on the potentiometric measuring principle with the help of an ion-selective electrode (ISE) and a reference electrode.

The measuring point is available fully mounted on our measuring and control system DULCOTROL® with the sensor fitting and controller DULCOMETER® diaLog DACb.

Your benefits

  • Precise, real-time potentiometric measurement for efficient process control (short response time)
  • Can be used up to a pH of 9.5
  • Selective LaF3 crystal eliminates interference caused by cross-sensitivities
  • Rapid external temperature compensation eliminates interference caused by influence of temperature
  • Potentiometric principle eliminates interference caused by flow changes
  • Potentiometric measuring principle enables quick commissioning

Application

Technical Data

Downloads

Contact us

Allen Mak

Managing Director, ProMinent Fluid Controls PFC far East Pte Ltd.

»Please send us your request! We will contact you shortly.«

+65 6747 4935  Send request   

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