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8.2 Activities for before the start of maintenance
1. Switch off the device (see chapter "Switching off").
2. Detach connecting cables and probes.
For maintenance or repair work which requires the housing to be opened, contact E+E
customer service. Devices which have been opened unlawfully are void of any warranty and
warranty claims.
8.3 visual inspection of the device
1. Check the device for dirt and possible damage.
2. Check the connection for digital probes and the micro USB connection for dirt and
possible damage.
3. Check the colour display for dirt and possible damage.
4. Check that the batteries and battery cover sits properly.
Damaged connections can falsify measurements and measurement results.
A damaged colour display can influence how measured results are shown.
8.4 Cleaning the device
1. Use a soft, lint-free cloth for cleaning.
2. Dampen the cloth with clean water. Do not use sprays, solvents, alcohol-based or abrasive
cleaners to dampen the cloth.
3. Clear dirt from the housing, the connections and the colour display.
8.5 maintenance of humidity probes
Instructions for proper cleaning and calibration of the humidity probes, can be found online at
www.epluse.com/omniport30
in the section "Downloads".
