©2018 Johnson Level & Tool
15
Calibrating the Product
It is recommended that the user calibrate the unit at the start of
each critical job or when the level is subjected to drastic changes in
temperature or has taken a fall. Do not move or shake the instrument
during calibration, as this might result in measuring errors.
There are two methods of calibrating the level. The first is a
two-point calibration method, and the second is a one-point bubble
calibration method.
Two-Point Calibration Method
7. With the level powered off, position the tool on a fairly level
surface, such as a countertop, floor or table, with the top read
LCD display facing up and the main display facing you.
8. Press and hold . “CAL 1” will appear on the LCD displays.
9. Tap . The level will beep, and “CAL 2” will appear on the LCD
displays.
10.Rotate the level 180°, with the top read display still facing up and
the main display facing away from you.
11.Tap . The level will beep and “rdy” will appear on the LCD
displays, indicating the level is calibrated and ready for use.
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