8 | Maintenance
TD310
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B-H86.0.04.DB201-1.0
NOTE
Read the following handling instructions before replacing batteries and follow them
step by step. If disregarded, the product could be damaged or the protection from
moisture could be diminished.
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Description
Proceed as follows to replace the batteries.
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Prerequisites
– The product is switched off.
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Instruction
1. Unscrew the Phillips screw.
2. Place the product on its rear side so that the display and controls are visible.
When changing the battery, leave the product in the horizontal position so that the
seal rings cannot fall out.
3. Carefully lift off the upper housing so that the controls are not damaged.
4. Carefully replace the two batteries. Ensure that the polarity is correct! It must be
possible to insert the batteries in the correct position without using force.
5. Check whether all seal rings and the seal in the housing are present and undam-
aged.
6. Carefully fit the upper housing, press it together and turn.
7. Tighten the Phillips screws.
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Outcome of an action
The product is now ready for use again.
