COD measurement for breweries

This model is mostly used as a COD (Chemical Oxygen Demand) meter for waste water treatment in breweries. For a COD application, a calibration matrix is used to measure the concentration with a high degree of accuracy. You can have a look at the application for further details. Model 9585 determines the COD concentration with an ultrasonic probe that includes a PT100 temperature sensor and an electrodeless conductivity probe. Unlike Model 9570 and Model 9580, this analyser also measures the attenuation and acoustic impedance. The ultrasonic probe is made of 316L or Hastelloy and PEEK, and is normally mounted in a launder or spool piece.



  • Chemical industries, food and beverages, and Mining, Metals and Mineral processing


  • COD measurement

Measurement parameters:

  • Sound velocity
  • Attenuation
  • Acoustic impedance
  • Temperature
  • Conductivity

Possible sensor installations:

  • UDP Diver Sensor (hybrid probe)
  • ECMP Series

Sensor/cell specifications:

  • Max pressure: 3 bar
  • Process connection: DIN/ANSI up to 8” or in launder
  • Temperature range: 0-130 °C
  • Wetted parts: 316L, PEEK

Readout and Housing:

  • Weatherproof housing/Explosion proof housing/Split Unit housing
  • 5,7” Color Touch Screen
  • Main screen with following characters;
  • Temperature & concentration displayed


  • Power supply: 24VDC or 100-240VAC 50/60Hz
  • Communication: 4-20mA, RS485/RS422 using Modbus

Optional: Ethernet, HART, Profibus

  • USB for data logging

Measurement specifications:

  • Concentration accuracy: Typically ± 0.1% of reading or 0.05% of range
  • Temperature accuracy: op to ± 0.01 °C
  • Response time: 0-90 s (adjustable)



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