Maintaining The Product - testo 622 Manual De Instrucciones

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Displaying pressure values and set height above sea level
To change the display between absolute pressure, barometric
pressure and set height above sea level:
> Press [hPa].
Acknowledging an alarm
Alarm was triggered:
- LED flashes
- The alarm value that was exceeded or undershot flashes
To clear an alarm:
> Press [Alarm].
- Alarm is cleared
With the alarm activated and a change to the setup menu,
the current alarm is acknowledged.

Maintaining the product

Changing batteries/rechargeable batteries
CAUTION
Incorrectly inserted batteries / rechargeable batteries can
damage the instrument!
> Observe the polarity when inserting the batteries /
rechargeable batteries.
1. Open the battery compartment on the rear of the instrument.
2. Remove spent batteries / rechargeable batteries from the
battery compartment and insert new batteries / rechargeable
batteries (type AA)
- Instrument turns on automatically.
3. Close the battery compartment.
If the power supply is interrupted the settings are being
saved for at least 3 min.
If the instrument is not used over a longer period, the
batteries/rechargeable batteries should be removed from
the instrument to prevent damage to the instrument and the
batteries/rechargeable batteries.
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