Troubleshooting - VOLTCRAFT WBM-460 Mode D'emploi

17. Troubleshooting

The DMM was designed using the latest technology and is safe to use. However, problems and malfunctions
may still occur.
This section explains how to troubleshoot common issues:
Always observe the safety information in these instructions.
Error
The multimeter does not work.
System time and date are not
retained.
The measured value does not
change.
The multimeter cannot take
measurements in the 10 A
range.
The multimeter cannot take
measurements in the mA/µA
range.
Repairs other than those described above should be performed only by an authorised specialist. If
you have questions about the multimeter, please contact our technical support team.
Possible cause
Is the battery empty?
The backup battery is empty.
Have you selected the wrong measur-
ing function (AC/DC)?
Did you use the wrong measurement
sockets?
Is the hold function enabled?
Is the F1 fuse in the 10 A input
defective?
Is the F2 fuse in the mA/µA input
defective?
Possible solution
Check the status. Charge the battery,
if necessary.
Check and replace the backup battery
as outlined in 'Maintenance'.
Check the display (AC/DC) and select
another function, if necessary.
Compare the connection with the
display.
Disable the hold function.
Check the 10A F1 fuse.
Check the 800 mA F2 fuse.
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