Service and maintenance
10.4 Replacing the battery
SENTRON PAC4200
Manual, 09/2008, A5E02316180B-01
149
3. Switch the system and the device off-circuit.
DANGER
Hazardous voltage
Will cause death or serious injury.
Turn off and lock out all power supplying the system and the device before working on
them.
4. Discharge any static from your body. Observe the ESD guidelines in the Appendix.
CAUTION
Electrostatic sensitive devices
Discharge your body of any static electricity! Touch the grounded control cabinet, for
example, or a metal part that is connected to the building ground (heater, steel support).
5. Replace the battery.
NOTICE
Reduced service life of the battery
Grease or dirt on the contacts forms a transfer resistance that reduces the service life of
the battery.
Hold the battery by the edges only.
CAUTION
Short-circuit of the battery
Gripping the battery with metal tools will short-circuit die battery.
Use insulated tools.
– The battery compartment is accessible from outside without opening the housing.
Remove the battery from the battery compartment. Use angled pointed pliers for this.
– Insert the replacement battery into the battery compartment. Take note of the polarity
indicated at the insertion opening of the battery compartment.
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