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6.1 Fault codes
If a fault code appears, short-press the Measure / Continuous measurement
button to return to the measuring mode.
Restart the product if the fault code does not disappear automatically.
If a fault code re-appears, use the table below to find the corresponding
information for dealing with the problem.
• Press the ON / Delete / OFF button to clear the fault code from the
display.
Trouble or fault
204
240
252
253
254
255
256
257
258
260
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Care, transport and storage
7.1 Care
▶ Keep the laser lens clear of dirt and finger marks.
▶ Clean the laser lens by blowing off dust or by wiping with a clean, soft
cloth.
▶ Use only pure alcohol or water for cleaning.
*2190183*
Possible cause
Calculation error
Data-transfer fault
Temperature too high
Temperature too low
Battery voltage too low
for measurement
Incoming signal too
weak
Measurement has taken
too long
Incoming signal too
strong
Too much background
light
Measurement out of
measuring range
Laser beam interrupted
2190183
Action to be taken
▶ Take the measure-
ment again.
▶ Repeat the procedure.
▶ Allow the product to
cool down.
▶ Warm up to the
product.
▶ Change the batteries.
→ page 5
▶ Use a different target
surface (e.g. white
paper).
▶ Use a different target
surface (e.g. white
paper).
▶ Use a different target
surface (e.g. white
paper).
▶ Shade the target area.
▶ Correct the measuring
range.
▶ Repeat measurement.
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