BK Precision 880 - Powering the Instrument; Installing the Battery

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26. – Low battery/charging indicator
27. @OFF –Auto power-off indicator
28. 1V 0.6V 0.3V- Display test level
29. TOL –Tolerance mode indicator
30. FAST- Fast/Slow measuring rate indicator
Special Display Indicators
Indicates short connectors
Indicates open connectors
Error indication
Indicates calibration mode
Indicates damaged or open fuse
AD converter error
AD converter error