8©2016 Johnson Level & Tool - Rev. 3
Slope Calibration Key
The calibration key is used for re-calibrating the instrument
in both the horizontal and vertical direction. Refer to Section
8 “Calibration” for details.
Mode Key
Push the MODE key to switch from one construction language
to another. This controls which construction language your
electronic module will measure in. Your level has the capability to
measure in Degrees, Percentage of slope, Millimeters per Meter,
Inches per Foot (Slope, Pitch) in decimal form and Inches per Foot in
fractions of an inch. A symbol on the upper right of the screen will
explain which MODE you are currently using.
Sound/Backlight Key
Pressing this key with a short press will turn on the sound
function and the sound icon will appear on the LCD. Press and release
the key to turn off the sound function and sound icon will disappear on
the LCD. The instrument will beep once when turning the sound on and
off. The level will beep faster when the level gets closer to 0° and 90°
(10°-0° and 80°-90°) when the LCD displays 0° or 90° there will be a
continuous tone. Press and hold this key (more than one second) will
turn on the backlight.
Hold Key
The angle readings change in accordance with the change of
the incline. Press the key (unit will beep once) to enter into the “hold”
mode. The measured angle reading will be held. The display will flash
and the angle measurement will not change. Press and release the
key again (unit will beep once) will stop the “hold” mode and measured
value will change with the incline.
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