On this page you can read about the other models of Rhosonics.

9585: COD Meter

COD measurement for breweries

The COD Meter Model 9585 is an instrument which is used for COD (Chemical Oxygen Demand) measurement in the influent flow of wastewater treatment plants in the beer industry. For this COD application, a calibration matrix is used to measure the concentration with a high degree of accuracy.

Model 9585 determines the COD concentration with an ultrasonic probe that includes a PT100 temperature sensor and an electrodeless conductivity probe. The 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 pipe line, reservoir or launder by means of a fixed UTP tank probe or by a spool piece.

Please find a download link to the COD Meter brochure below.

Performance specifications


Ultrasonic sound velocity, Electrical Conductivity and Pt100 temperature measurement

Measuring range:

0 - 50 g/l, 0 - 50 mS/cm


COD in g/l, Conductivity in mS/cm, Temperature in °Celsius


Up to 0.1 g/l COD, up to 0.1 mS/cm

Decay time:

1 to 90 s (adjustable)


5,7” Color Touch Screen


Touch Screen Display, Computer

General specifications

Process conditions

Max pressure:

4 bar

Temperature range:

0 °C … 110 °C (32 °F to 230 °F)

Wetted materials:

316L, PEEK

Electrical specifications

Power supply:

24VDC or 100-240VAC 50/60Hz

Communication & Output:

4-20mA outputs (2x), Alarm output (2x), RS485/RS422 using Modbus. Optional: Ethernet, HART, Profibus

Data logging:

USB data logging & fault reporting

Cable entries:

5 pieces of M20x1.5 cable glands for Ø5-9 mm cable

Ambient conditions

Ambient temperature:

-20 °C to +65 °C (-4 °F to 149 °F)


< 95% at 40 °C (noncondensing)

Sensor protection:


Housing dimensions and weight


Weather proof (WPF) housing approx. 6.2 kg, sensors and cells various weight depending on type

Housing materials:

WPF housing, coated steel / Split Unit housing


WPF housing 300 x 300 x 120 (L x W x H in mm)

Process connection:

UFTC Spool piece with 3 ports or

UTP Sensor (Fixed tank probe) and

ECMP Series (Conductivity probe)



Nominal pipe size:

4" up to 8” or in launder

8500: Concentration analysers

The model 8500 series is an ultrasonic concentration analyser that enables the accurate measurement of concentrations of chemicals. These analysers can be fruitfully applied to measure electrolyte solutions, liquid purity, and hydrocarbon concentrations in water. The model 8500 series allows measurement of nearly 100% of all single chemical solutions in water. It is the most reliable and most powerful instrument to measure the composition of industrial liquids. Thanks to its innovative electronics and sensor design, it allows for continuous in-line monitoring of diluted solutions with a very high degree of accuracy. Furthermore, these analysers lack moving or degrading parts, which means that virtually no maintenance is needed.

Select the binary liquid analyser of your choice.

Key features:

  • Very low cost of ownership
  • High accuracy and reproducibility
  • Maintenance free
  • Installation methods for different applications
  • Easy operation
  • Color display
  • Data logging
  • Supports various communication protocols, including Modbus, Profibus & HART

Contact us for more information »