Troubleshooting; Maintenance - Wohler LD 400 Mode D'emploi

Troubleshooting

8 Troubleshooting
Problem
Err1
Err2
Err3
Err4
Err5
Err6
9

Maintenance

42
Possible reason
Signal too weak
Signal too strong
Battery voltage is too low
Beyond working
temperature
Improper measurement of
Pythagorean proposition.
Memory damage

The meter should not be stored in high tem-
perature and strong humidity environment for
long term. Store the meter in a cool and dry
place. If not used for long time, please take
out the battery.

Please keep the device surface clean. Wet
soft cloth is applied to clean dust. Never use a
cleaning agent.

The laser output window and its focus lens
can be maintained according to maintenance
procedures for optical device.
Solution
Measure target locations
which are with stronger
reflecting capability.
Measure target locations
which are with weaker re-
flecting capability.
Replace battery.
Carry out measurement
with the meter in the speci-
fied scope.
Re-measure, and ensure
that the length of the hypot-
enuse is longer than that of
the right sides.
Please contact the supplier.