49IA_20901569_EN_R9_V1_061223
Maintenance
116. Let the pump run for approx. 1 hour with
the outlet open, the gas ballast valve open
and the inlet closed.
DANGERDANGER
Danger of electric shock.
Improperly executed repairs will result in an electrical
shock.
> Check the electrical safety of the device according to IEC
61010 and national regulations aer repair.
> Check the protective conductor resistance.
> Check the insulation resistance.
> Carry out a high voltage test.
> Check the leakage current according to DIN EN
50678:2021 (EN 50678:2020) and national regulations.
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