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Maintenance
4 Maintenance
gas-net devices do not require much maintenance.
4.1 Battery Replacement
The device battery mainly runs down when the device is switched off. The
battery consumption can be neglected as long as the device is switched on.
The battery should therefore be replaced after 5 years when in the meantime
the device has been switched off for a longer period of time. Otherwise it is
sufficient to replace the battery after 10 years at the latest.
If the battery must be replaced, this should only be executed by a service
engineer or trained expert for safety reasons.
Important: The old battery must be disposed properly; i.e. it must either be
returned to the distributor (Elster) or handed in at special battery take-back
facilities.
To exchange the battery, you need to open the housing of the gas-net device.
Proceed as described below:
•
A battery of the following type is required: lithium 3V CR ½ AA.
•
Save the device parameterization by reading it out with GAS-WORKS, to be
on the safe side. Read out the archives, too.
•
Disconnect the supply voltage.
•
Loosen the 4 fixing screws on the back of the device.
•
Slightly withdraw the mounting rail.
Attention: The boards are sensitive! Avoid any contact with other
components!
•
The battery compartment is (seen from behind) on the board located back
at the top on the far right side. Detach the cover strap of the battery
compartment with a screwdriver. Remove the old battery. Now you have 15
minutes for the battery exchange. During these 15 minutes a data backup is
guaranteed by a capacitor. Insert the new battery.
gas-net F1
4
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