Basic Properties; First Steps - testo 623 Manual De Instrucciones

4.2 Basic properties

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Power supply
The instrument is powered optionally by:
• 4 batteries / rechargeable batteries, type AA
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Wall mounting
The distance between the upper and lower drill hole is 63 mm.
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5 First steps

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Removing the protective film
> Remove the protective film from the display
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Inserting batteries/rechargeable batteries
1. Open the battery compartment on the rear of the instrument.
2. Insert batteries/rechargeable batteries (observe the polarity!)
3. Close the battery compartment.
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5 First steps
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