
EK280
Application Manual
63
7.1.6
Replacing the antenna
Danger!
For EK280 with internal power supply, the mains voltage must be switched off before
opening the housing, ensure it is not turned back on and verify that there is no voltage.
If reception via the internal modem is too poor, it is possible to replace the mounted short antenna with SMA
connection. To do this, Elster GmbH offers various antennas of varying lengths.
7.1.6.1 Steps
Remove the cover strip from the housing.
Loosen the housing screws and open the housing cover.
Disconnect the modem battery or the
connection of the modem supply of the
internal power supply from X3, "Battery",
of the modem board.
Open the cable gland of the short
antenna.
Remove the short antenna from the
housing. Be careful not to stretch the
antenna adapter cable when opening the
housing cover.
Unscrew the short antenna from the
antenna adapter cable.
Содержание EK280
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