18. May 2021
© Copyright 2020, PROCEQ SA
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8 Maintenance and Cleaning
8.1 Maintenance carried out by the user
You may only carry out the following maintenance and repair by yourself:
Outer cleaning of the device (see section 8.2)
Cleaning of the standard (see section 8.3)
All other maintenance and repair operations may only be done by Zehntner or your
authorized Zehntner-agent, otherwise all warranty will be void.
8.2 Cleaning of the aluminum housing
Before cleaning disconnect the USB-cable from your computer. For cleaning of the aluminum
housing use a proper, soft and moist cloth. Use exclusively soft cleaning agents.
Do not use strongly acidic or alkaline liquids.
Never immerse the device in water or other liquids.
If the device has to be disinfected, do not use disinfectants that contain sodium
hydroxide.
8.3 Cleaning of the standard
The accuracy of measurements can be impaired significantly by using dirty or damaged
standards. Since the surface of the standards is highly sensitive, cleaning must be undertaken
with great care. To clean standards, use the included microfiber cleaning cloth.
Apply only slight pressure during cleaning and make sure there are no large particles
on the standard or in the cloth that could damage or scratch the surface.
Do not use any aggressive and abrasive cleaning agents to clean the standard.
