• Drinking water
  • Process optimisation of wastewater treatment plants
  • Industrial and municipal wastewater
  • Mineral water monitoring
  • Surface water


Spectrophotometric analyzer for the determination of Chemical Oxygen Demand (COD).


The determination of dissolved organic substances is performed photometrically at 254 nm. To minimize the inteference of the sample turbidity or other matrix effects a second measurement at 590 nm is taken. The compensated absorbance is proportional to the concentration of dissolved organic substances that absorbs in the UV region.


Wavelength 254 nm
Min. analysis time 1 minutes

Technical Specifications

Model UV
Analysis Mode Batch, near continuous operation.
Sample Pressure-free vessel
Temperature: 5 to 50 °C (41 - 122 °F)
Flow Rate: 80 to 500 mL/min
Connection: 6 mm (¼-in.)
Drain Pressure-free drain
Connection: 12 mm (½-in.)
Streams 1, 2 with integrated switching valve
3, 4 with external sequencer
Frame Cold-rolled steel painted with epoxy powder
Dimensions (H x W x D) 606 x 380 x 209 mm (23.6 x 14.8 x 8.2 in)
Weight 20 kg (44 lbs)
Power Supply Input Voltage:100 - 240 VAC 50/60 Hz standard or 24 VDC (option)
Power consumption: max. 80 W
Output signals 2 x 4-20 mA analog outputs
Modbus RTU via RS485
Alarms 4 SPDT programmable voltage-free relays
Digital Input Remote start / stop
Temperature 5 - 45 °C (41 - 113 °F)
Relative Humidity 10 to 90 % (indoor use, outdoor installation only possible with protective cabinet or shelter not included)
International Protection IP54


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