Hirschmann HiSecOS EAGLE20, Руководство пользователя

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Installation EAGLE20/30
Release 12 03/2021
5 Maintenance and service

When designing this device, Hirschmann largely avoided using high-wear
parts. The parts subject to wear and tear are dimensioned to last longer
than the lifetime of the product when it is operated normally. Operate this
device according to the specifications.

Relays are subject to natural wear. This wear depends on the frequency
of the switching operations. Check the resistance of the closed relay
contacts and the switching function depending on the frequency of the
switching operations.

Depending on the degree of pollution in the operating environment, check
at regular intervals that the ventilation slots in the device are not
obstructed.