Bosch EasySpiritLevel Original Instructions Manual page 18

18 | English
Perform a measurement to check the accuracy. Turn the measuring tool by
180° around the vertical axis and perform the same measurement again.
Compare the two measured values. If the measured values are not identical,
calibrate the measuring tool.
Performing the Calibration
The surface onto which you place the measuring tool must not deviate from
the horizontal surface by more than 3°. You can find further information on
calibration on the supplied stickers.
– Switch on the measuring tool .
– Press and hold the audio signal button (6) for 5 seconds. All LEDs on the
LED tilt indicator (4) will flash green.
– Place the measuring tool on a horizontal surface.
– Briefly press the audio signal button (6) to start calibration. The LEDs on
the LED tilt indicator (4) will flash successively.
– If the first calibration has been completed successfully, all LEDs on the
LED tilt indicator (4) will flash green simultaneously and a brief audio sig-
nal will sound.
– Turn the measuring tool 180° around the vertical axis: The LED tilt indic-
ator on the top side (1) will still face upwards and the LED tilt indicator on
the front side (4) will now be on the side facing away from you.
– Briefly press the audio signal button (6) again. The LEDs on the LED tilt
indicator (4) will flash successively again.
– If the second calibration has been completed successfully, all LEDs on the
LED tilt indicator (4) will light up green continuously and two brief audio
signals will sound. The measuring tool can now be operated.
– Note: If the calibration has failed, the measuring tool returns to measur-
ing mode. The calibration needs to be restarted.
A second calibration can be performed on a vertical surface for verification.
To do so, perform the steps listed above on a vertical surface that does not
deviate from the vertical plane by more than 3° and turn the measuring tool
by 180° around the horizontal axis.
1 609 92A 7GE | (01.09.2022) Bosch Power Tools