Online turbidity measurement

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Turbidity is caused by particles in a liquid. The turbidimeters visually measure the turbidity of the medium. For this purpose, a combined transmitted / scattered light measurement is used, in which a transmitter and a receiver face each other and another transmitter orthogonal (at an angle of 90 °) is arranged. The absorption / scattering of the transmitted light is detected by the evaluation electronics integrated in the connection head, converted into a 4 … 20 mA and output to a separate evaluation unit. The measurement is carried out in accordance with ISO 7027 (90 ° scattered light measurement).

  • Technical Data 
  • Features 
Supply voltage 24V DCNenn (10 … 30V DC)
Output signal 4 … 20 mA
Connected load power supply approx 0,5 W
Ambient temperature 5 … 45 °C
Medium temperature PVC version 5 … 60 ° C; PP version: 5 … 80 ° C
Pressure 6 bar / 20 °C; 1 bar / 60 °C
Seals EPDM (others on request)
Sensor window Borosilkat-Glas, Cleanosil-Beschichtet
Signaling Status-LED
Measuring ranges TC20: 0,01 … 1/2/5/10/20 FNU (Formazin Nephelometric Units) 
TC1000: wählbar 0,1 … 50/100/200/500 FNU (300 – bei Armaturen DN80/DN100) oder 100 … 1000 FAU
Measuring accuracy  ± 5% of the current measured value and ± 1% of the respective MB end value
Resolution 0.001 … 0.2 FNU depending on the measuring range
  • Continuous turbidity measurement
  • Plastic version
  • Compact version – can be used without additional transmitter
  • ISO 7027 compliant – 90 ° scattered light and 180 ° transmitted light measurement
  • Smooth measuring space – no settling of particles
  • CLEANOSIL VMF nano-coating of the disks – long service intervals
  • Pre-calibrated with formazine in FNU units
  • Solid-state calibration standard included in delivery – simple equipment check and readjustment without wet calibration
  • Customizable – easy range selection by DIP switches without recalibration
  • Resolution – already from 0,001 FNU

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