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fluke 87 -111 dvm

mike30

Jan 2, 2012
1
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Jan 2, 2012
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Can anybody help by anwsering this query : my dvm is working ok but has developed an
annoying clicking sound whilst being used. occaisionally it will stop only to return. I have
changed the battery and both internal fuses to no avail. has any one had the same problem. please e-mail direct if desired.

kind regards,
mike.

Further findings : the loudish and irritating clicking synchronous sound is with the very small pos.& neg. icons shown by the side of the bar graph alternating at the same frequency. Somehow the problem seems to be tied in with the sampling bar graph, as it is prevalent during AC & DC voltage tests along with diode & resistance tests.

Any ideas.
Kind regards,
Mike....
 
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