Siemens SENTRON PAC4200 Manual page 125

Service and maintenance
8.4 Replacing the battery
Procedure
Before removing a battery from the device in order to replace it with a new one, the data in
the device must be backed up.
1. Select the "ADVANCED" submenu of the "SETTINGS" menu.
2. Select the "CHANGE BATTERY" menu item and press "ENTER" to confirm your
selection.
Figure 8-1
This will start data backup. The SENTRON PAC4200 copies the data from the battery-
backed memory into the internal non-volatile memory.
The data does not leave the device.
The device indicates completion of data backup.
Figure 8-2
3. Switch the system and the device off-circuit.
4. Discharge any static from your body. Observe the ESD guidelines in the Appendix.
124
"CHANGE BATTERY"
Indication of completed data backup
DANGER
Hazardous voltage.
Will cause death or serious injury.
Turn off and lock out all power supplying this equipment before working on this device.
System Manual, 05/2019, A5E02316180B-05
PAC4200