Abus FUMK50020 Installation Instructions Manual - Page 13

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Changing the battery

IMPORTANT

Press the magnet bracket including the magnet into the fitted

magnet holder attachment.

Position the magnet in the magnet bracket as shown in the

adjacent illustration.

Before changing the battery, set the alarm system to installer

mode or hide the respective zone (see corresponding device

information).

To change the battery, remove the dust cover together with

the locked motherboard housing by swinging them away

swiftly, and return to their original position once you have

changed the battery.

Ensure that the polarity is correct.

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