Conductivity monitor mikron 81 (spare part)

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Article No.: ADG61
Articlename: mikron 81

Conductivity monitor mikron 81 (spare part)

Main unit without flow cell

The mikron 81 is a reliable in-line conductivity monitor with a very low footprint and measures with a high linearity in the range from 0.002 to 500 mS/cm. Its cutting edge temperature sensor technology enables highly precise automated temperature correction of the conductivity measurement. The intelligent flow cell design allows for a broad flow rate regime fom microliter to lower liter per minute scale. It comes pre-calibrated and ready-to-use with all accessoires needed.


Common applications

  • Monitoring salt gradients in FPLC systems
  • Cleaning-in-place monitoring in prozess plants and skids
  • Value-based triggering within a flow system
  • Upscaling (eg. from 1 ml/min to 1 l/min)

Ask our support (support@knauer.net) for driver scripts to work without CDS.


Order recommendation

ADG61GD is the ideal choice for low flow applications with ion-sensitive components in the system.
It is optimized for monitoring a wide range of conductivity values from 10 µS/cm to 500 mS/cm in a small measurement volume.

ADG61GE is the ideal choice for FPLC applications with high flow and highly viscous solutions.
It is designed to monitor conductivity values in the range of 2 µS/cm to 100 mS/cm at low back pressure.


Scope of delivery

ADG61GD and ADG61GE, respectively comes with;

  • Mounting bracked incl. screws for installation to an AZURA L module (ADG6101)
  • 3 m cable for direct connection to a USB-A port of a PC (part of ADG6102)
  • User manual in four languages (EN, GE, FR, ES) (part of ADG6102)
  • Fittings and ferrules to connect either 1/16" or 1/8" OD tubing (FZG10)

Technical Data


Detector type Conductivity monitor
Sensor Conductivity and temperature
pH measurement None
Maximum data rate Conductivity: 10 Hz (variable in 1 Hz steps)
Temperature: 1 Hz (fixed)
Wetted materials Titanium, PEEK


D/A conversion None
Analog inputs None
Analog outputs None
Digital inputs Via hyperterminal
Digital outputs Via hyperterminal
Digital control and output Via PurityChrom or ClarityChrom
Interfaces via USB-C

Technical parameters

Special features Free of charge calibration software (see below)
GLP Serial number
Firmware version
Number of switching cycles
Operating hours
Date of last maintenance by customer service
Date of last validity check
Conformity CE, UKCA
For wetted parts: EN 10204-3.1, USP Class VI, ADI-free
Display None
Ambient conditions Operating temperature: 3 – 45°C, 37.4 – 113°F
Relative humidity: 0 – 90 %, non condensing


Power supply Max. 5 V via USB connection (max. 500 mA, max. 2.5 W power uptake)
Dimensions 32 x 65 mm (Diameter x Length)
Weight 95 g (monitor + flow cell)


Optional accessories Adapters to connect 3/16" or 1/4" OD tubing (see linked FAQ)

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.
See all Quality certificates

In addition, we have extended documentation about all our products, including CE Declarations of Conformity.
See all CE Declarations of conformity

Innovation and quality - since 1962. Made in Germany.

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Technical data or prices are subject to change without notice. Prices may vary by country and do not include taxes, customs duties or delivery. All trademarks are the property of their respective owners.Our general terms and conditions apply: www.knauer.net/terms

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