●
If the P634 is continuously connected to the auxiliary power supply, then
there is no discharging of the battery, and the battery will thus not be
depleted during its service life.
●
Should the P634 be disconnected from the auxiliary power supply for
several years, then the battery capacity would decrease.
During normal operation, the battery voltage is monitored. If the voltage falls
below a pre-defined threshold, a warning message will be issued and the battery
has to be replaced.
After the maintenance procedures described above have been completed, new
commissioning tests as described in Section 10.2, (p. 10-4) must be carried out.
12 Maintenance P634
P634/EN M/R-42-A // P634‑311‑653 12-3
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