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Operating Instructions
readout to control the tension for opening and closing
the Digital Angle Rule. Rotate clockwise to tighten and
counterclockwise to loosen. The Digital Angle Rule
can be zeroed out in two different ways – fully closed
or fully open – depending on whether you want to
measure the acute or obtuse angle.
To measure the angle from the left: Turn the device on
and place it on edge on the surface in the closed position.
Press the "0/ON" button to set the readout to 0. Keeping the
rule with the digital readout anchored on the surface, rotate
the other rule to the angled surface to determine the angle.
To measure the angle from the right: Turn the device on
and place it on edge on the surface in the open position. Press
the "0/ON" button to set the readout to 0. Keeping the rule
with the digital readout anchored on the surface, rotate the
other rule to the angled surface to determine the angle.
Troubleshooting
Problem
No or
dimmed display
Erratic display
Number skip or
frozen display
14
Turn the knob next to the digital
Possible Cause
Low battery power,
no battery or
battery not
installed properly
Excessive vibration
Internal error
Possible Solution
Reinstall or
replace battery
Reset to 0
Remove battery, wait
one minute and then
replace battery
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