
281114 v1.3
Operating Instructions USi
Page 33/43
Polymer Electric
Maintenance and cleaning
Maintenance and cleaning
Maintenance
Cleaning
The USi is maintenance-free.
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Repeat the functional test annually.
For harsh environmental conditions or very high detection frequency, the interval for
the functional test is reduced accordingly.
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Clean the outside of the enclosure with conventional cleaning products.
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Allow the enclosure to dry before recommissioning.
Danger of injury due to electrocution!
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Disconnect the USi as well as all devices and live parts in the immediate
environment from the power supply and protect them against being switched
on again (see relevant Operating Instructions).
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Check whether all devices and parts are disconnected from the power supply.
WARNING
Failure due to water penetration
Cleaning with a high-pressure cleaner my result in penetration of water in the
Evaluation Unit (IP65) and failure of the electronic system.
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Never clean the Evaluation Unit with a high-pressure cleaner.
CAUTION