Discontinued: Conductivity Monitor CM OPTEK

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Article No.: A70094
Articlename: Discontinued: Conductivity Monitor CM OPTEK

Discontinued: Conductivity Monitor CM OPTEK

conductivity monitor with pH option for flow rates >100 ml/min

The conductivity monitor CM OPTEK is a high precision device for the monitoring of salt and pH gradient in biochromatography applications. It is used for FPLC for flowrates up to 1000 ml/min. The CM OPTEK includes the flow cell for both sensors (conductivity and pH) and two different temperature sensors for conductivity and pH. Conductivity and pH are temperature depending parameters. About an adjustable temperature compensation, the correct values ​​on the display are shown.

Key Features

Technical Data


Detector type conductivity and pHmonitor
Measurement accuracy Temperature sensor accuracy: ±0.2 °C; Conductivity accuracy: ±0.5% pH accuracy: ±0.01
Sensitivity pressure limit ofboth sensors are 6 bar
Measurement range 1 µS/cm–850mS/cm
pH measurement 0-14
Flow cell >100-1000 ml/min
Supported electrodes conductivity: via conductivity sensor pH: via pH sensor (for electrodes with demesions ofØ 12 x 120 mm, PG 13.5 thread)


Analog outputs 2 channels (conductivity and pH) 0-10 mA

Technical parameters

Display backlitLCD, dual 5-digits, 7-segments
Ambient conditions operating temperature: -10 to 75 °C, relative humidity: up to 95%


Power supply 12-30 V DC
Dimensions 310 x 190 x 400 mm (W x H x D)

Documents and more information

Certified Quality 

KNAUER is known for the quality of its products and has been certified several times. We produce high-tech laboratory instruments for research, routine analysis and production for 59 years.
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In addition, we have extended documentation about all our products, including CE Declarations of Conformity.
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