Replacing Batteries - Siemens FDUL221 Technical Manual

Line tester

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7.2 Replacing batteries

Building Technologies

Fire Safety

The charge state of the batteries is indicated on the right of the FDUL221 line

tester's display. To ensure the faultless functionality of the FDUL221 line tester,

weak batteries must be replaced by new ones.

WARNING

Short-circuit as a result of incorrectly inserting batteries

Warming of batteries and risk of fire

When inserting battery, note polarity.

Two new, undamaged batteries, order number A5Q00004142, are available.

1. Switch off the FDUL221 line tester.

2. Disconnect the FDUL221 line tester from the detector line.

3. Open the battery compartment on the back of the FDUL221 line tester.

Slide the cover out of the catch.

Remove the cover.

4. Remove the batteries.

5. Move the pin cover from the new batteries to the old ones.

6. Insert two new batteries into the battery compartment and ensure they are

inserted correctly. The batteries must have a space between them so that the

battery terminals make reliable contact with the FDUL221 line tester.

7. Close the battery compartment.

Dispose of batteries in an environmentally friendly manner and observe national

guidelines and regulations.

Battery compartment for two batteries with sign for correct insertion

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