Operating instructions

47
EN
10.2 Regular checks
The following service work should be carried out:
Activity Interval Described in
Visual check 6 months Section 10.2.1
Battery/fan check 6 months Sect. 10.2.2/10.2.3
10.2.1 Visual check
When carrying out the visual check:
• Determine whether mechanical damage or foreign bodies
can be identified in the device
• Determine whether conductive dirt or dust deposits are
located in the device
• Determine whether dust deposits are hindering the supply
and removal of heat.
CAUTION!
The P
rotect B. PRO must be de-energised before
the following measure is carried out.
In case of very heavy dust accumulation, the device should be
carefully blown out with dry compressed air to enable better heat
exchange.
The intervals of the visual checks to be carried out primarily
depend on the local set-up conditions of the devices.
10.2.2 Battery check
The progressive aging of the battery system can be determined
through regular capacity tests. Carry out comparative
measurements of the achievable autonomy time every 6 months,
e.g. by simulating a mains failure. The load should always be
approximately the same as the power normally required. If the
measured autonomy time has decreased dramatically since the
previous measurement, please contact our hotline (see Page 5).
10.2.3 Fan check
The fans are to be checked regularly for dust accumulation and
any noticeable unusual noises. If the supply air openings are