338 Testing and Calibrating the Digital Level
2 Rotate the level end-for-end so the display is facing away from you. The screw on the back of the level
should be on the left side. Be sure to set the level in the exact spot as in Step 1. Wait 10 seconds for
the level to completely settle and take note of the angle on the display.
3 Roll the level toward you so that the display is facing you, but the lettering on the face of the unit is
upside down. Be sure to set the level in the exact spot as in Step 1
on page 337. Wait 10 seconds for
the level to completely settle and take note of the angle on the display.
4 Rotate the level end-for-end so the display is facing away from you. The screw on the back of the level
should be on the right side. Be sure to set the level in the exact spot as in Step 1
on page 337. Wait 10
seconds for the level to completely settle and take note of the angle on the display.
5 Compare the level display readings that you captured from Step 1
through Step 4. If any of the four
readings vary from one another more than 0.1 degree, you must recalibrate the level. For more
information, see Calibrating the Digital Level
on page 339. If the variance between the readings are
within the 0.1 degree limit, the level is within compliance and is ready to be used.
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