GB/MT
34
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Put on a flat surface. Make sure both rulers
1
are
aligned with the surface (see fig. C), and then press ZERO
button
6
to set data to zero.
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Rotate the ruler to measure the angle. Note: The locking
knob
2
can be tightened by turning it clockwise, so as to
hold a desired measured angle.
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You may also open the 2 rulers 180° straight aligned with
the surface (see fig. D), and then press ZERO button
6
to
set zero. Rotate the ruler to measure the angle.
Tip:
The display will show “Err”, if the ruler has been turned
over 360° (see fig. E). Turn back the ruler to the original
starting point and measure again.
Tip:
The LCD display
3
automatically switches itself off after
approx. 4 minutes.
Troubleshooting
The device contains sensitive electronic components. That is
why it experiences interference when in close proximity to radio
transmission devices. If any indication errors appear in the
display, remove such devices out of the proximity of the angle
ruler.
Electrostatic discharge could result in malfunctions.
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When such malfunctions occur, remove the battery for a
short while and re-insert.
Failure
Cause
Solution
Low voltage
symbol
shown on LCD
display
3
.
The battery voltage
is lower than 2.7 V.
Replace the
battery in line with
the chapter on
“Inserting /
replacing battery”.
The LCD
display
3
does
not continue to
count.
Faulty wiring or
circuit.
Remove battery
and re-insert after
30 seconds.