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5 Safety and maintenance
5.1 Safety information
Note!
Use only approved NiMH batteries (see Section 5.4).
Do not use any other battery. Other batteries may
cause a short circuit. The battery casing could be
destroyed (dangerous). When you are replacing
batteries insert them into the device with the minus
pole first (Figure 13).
The "+" mark on the lid of the battery compartment
should help you here.
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Do not submerge batteries in water
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Do not throw batteries into open flames
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Do not dispose of old, defective batteries with normal household waste (use collection
points)
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Batteries become warm when they are charging, this is normal
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Do not operate the measuring device in explosive environments.