FNM alpha SM 230, User Manual, Page: 64 / 72

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Maintenance
Base module alpha WSN BM 1x0
The base modules can be operated without maintenance.
Sensor modules alpha WSN SM 230-G and alpha WSN SM 230
The sensor modules can be operated without maintenance except for changing the
battery.
You will find a detailed instruction for changing the batteries in the chapter "Battery
change“.
Repeater modules alpha WSN RM 300-G and alpha WSN RM 300
The repeater modules can be operated without maintenance.
Battery change
Although the modules of the wireless measurement system are very energy efficient
and so a very long lifetime of the battery is achieved, it is from time to time necessary
to change the battery. Please proceed as follows.
Battery change housing version
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Fig.: Opened housing
Maintenance