Error Codes; Replacing The Battery - PeakTech 5150 Bedienungsanleitung

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8. Error Codes

An error message will appear on the display if the meter fails an internal diagnostic test. And it will
freeze all the buttons.
Err. 1: Pressure value is over the range.
Err 2.: Pressure value is below the range.
Err 3.: DIF function, the differential pressure value is over range.
Err 4.: DIF function, the differential pressure value is below range.

9. Replacing the Battery

When the entire display shows the low battery indication, the 9 V battery has fallen to a critically low
voltage level and should be replaced as soon as possible.
1. Take off the battery cover at the button side of the instrument,
2. Remove the old battery and replace the new 9 V battery.
3. Make sure that the battery is installed to the right position and connected to the proper
polarisation with the battery snap.
4. Put on the battery cover and let it snap in to secure.
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