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Calibration tool for conductivity sensors
Conducal CLY421

Portable reference calibration for ultrapure water applications

  • ©Endress+Hauser

Conducal CLY421 is the ideal calibration tool for conductivity measuring devices in ultrapure water applications. It offers certified comparison measurement and full traceability of your instruments' verification and calibration. Furthermore, the tool is fully compliant with the requirements of the pharmaceutical industry. Conducal comes in a robust, portable hard-top case with battery-powered Liquiline transmitter, allowing flexible calibration in the field.


  • Factory calibration traceable to standard reference material by NIST and DAkkS

  • Factory calibration of Conducal according to ASTM D-5391

  • Flow assembly with adjusting and monitoring functions according to ASTM D-5391

  • Accurate calibration by direct use of process sample and comparison with the reference system

  • Rapid setup of comparison measurement with practical flow assembly

  • Flexible calibration in the field with carrying case and battery-powered Liquiline transmitter

Field of application

Conducal CLY421 is a portable calibration and verification tool for quality-relevant conductivity measurements. It is suitable for all ultrapure water applications up to 20 µS/cm:

  • Life science industry

  • Food industry

  • Semiconductor industry

Its traceability to national standards (NIST and DAkkS) fulfills the highest regulatory requirements.

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