7 Maintenance

The PROTECT A. consists of state-of-the-art, non-wearing components. We do, however, recommend regular visual checks of the unit to maintain its continuous availability and operational reliability. Check whether:

♦there is any mechanical damage or foreign bodies can be found in the system,

♦any conductive dirt or dust has accumulated in the unit,

♦accumulation of dust affects heat supply and dissipation.

CAUTION:

The PROTECT A. must be disconnected from the power supply prior to carrying out the following work.

If large quantities of dust have accumulated, the unit should, as a precaution, be cleaned with dry compressed air, in order to ensure adequate heat dissipation.

The intervals at which visual checks should be performed are primarily determined by the site conditions.

Checking the battery

Progressive ageing of the battery system can be detected by regular capacity checks. Every 12 months, perform measurements to compare the achievable standby times, e.g. by simulating a mains failure. In this case, the load should always have approximately the same capacity demand. Have the battery system renewed if the time drops drastically compared to the previous measurement.

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