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Zero-point gel

100% oxygen-free medium for validation, calibration and adjustment of oxygen measuring points

  • Zero-point gel
COY8 ©Endress+Hauser
  • Zero-point gel
COY8 ©Endress+Hauser

COY8 is a ready-made gel that allows you to detect the true zero point of your oxygen and chlorine sensors. Thus, you can improve the reliability and accuracy of your measuring points and, hence, the quality and yield of your products. What's more, it eases the decision whether a sensor should be adjusted, maintained or replaced. The gel doesn't require additional chemicals or preparation. It is instantly ready to use and is reusable within 24 hours after opening.


  • Be sure: exact determination of the true zero point of your oxygen and chlorine measuring loops.

  • Enhance your product quality: the zero-point calibration improves the accuracy and reliability of your measurements and can increase the quality and yield of your products.

  • Speed up your maintenance: the gel is instantly ready to use – just insert the sensor!

  • Simplify your maintenance: one tool for validation, calibration and adjustment of all your sensors in the field and the lab.

  • Improve safety at work: the ready-made gel comes in safe, easy-to-use bottles removing the need for manual chemical preparation by plant personnel.


COY8 zero-point gel determines the true zero point of virtually all oxygen and chlorine sensors in:

  • Life Sciences
    - Fermentation processes

  • Food & Beverages
    - Inertization processes

  • Power & Energy
    - Steam/water cycle

  • Drinking water
    - Distribution network
    - Critical control points (CCPs)

  • Utilities of all industries
    - Water treatment

Funktioner och specifikationer




Endress+Hauser AB
Box 1486 171 28 Solna , Sverige
Tel.: +46 (0)8 555 116 00
Fax: +46 (0)8 555 116 55
Skicka e-post www.se.endress.com

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