Maintenance and Servicing
107460_en_00
PHOENIX CONTACT
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5
Maintenance and Servicing
5.1
Maintenance Interval
The following maintenance intervals are recommended for this operating device:
5.2
Front Panel
Only use a damp cloth to remove any dirt from the front panel.
5.3
Fuse
A semiconductor fuse is used to protect the device. Once the fuse has been tripped, the de-
vice must be disconnected from the supply voltage to allow the semiconductor fuse to re-
generate. At an ambient temperature of 20 °C (68 °F), the regeneration takes approximately
20 seconds. The higher the ambient temperature, the longer the regeneration takes.
5.4
Battery
The minimum battery life is 5 years, even under unfavorable operating conditions.
We recommend you change the battery approximately every 4 years as part of the regular
maintenance work.
Table 5-1
Maintenance interval
Maintenance work
Interval
Changing the Battery
4 Years
NOTICE: Damage
The semiconductor fuse cannot be replaced!
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