7 | Operation and maintenance
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B-H88.0.11.DB2-1.0
7 Operation and maintenance
7.1 Operating and maintenance notices
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NOTE
Pressure connections must be protected from soiling.
7.2 Battery
7.2.1 Battery indicator
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If the empty frame in the battery display blinks, the batteries are depleted and must be
replaced. However, the device will still operate for a certain length of time.
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If the
BAT
display text appears in the main display, the battery voltage is no longer ad-
equate for operation of the product. The battery is fully depleted.
7.2.2 Changing battery
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NOTE
Unnecessary screwing places the water-tightness of the product, among other things,
at risk and should be avoided.
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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
A
B
C
D
Fig. 10: Batteriewechsel
1. Unscrews the Phillips screws (A)and
remove the cover.
2. Carefully replace the two Mignon AA
batteries (B). Ensure that the polarity
is correct! It must be possible to insert
the batteries in the correct position
without using force.
3. The O-ring (C) must be undamaged,
clean and positioned at the intended
depth. In order to facilitate assembly
and avoid damage, a suitable grease
can be applied.
4. Fit the cover on evenly. The O-ring
must remain at the intended depth!
5. Tighten the Phillips screws (A).
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Outcome of an action
The product is now ready for use again.
