8/19/03
910-198E
Model 8500
Page 9-1
9
MAINTENANCE AND
TROUBLESHOOTING
The Magna-Mike 8500 is an industrial quality electronic instrument
that requires very little maintenance. Most troubleshooting and
maintenance procedures may be done by the user, however if
problems persist, please call Panametrics-NDT
TM
for technical
assistance (refer to Section 9.6).
9.1
Probe
If an unknown target error message occurs during calibration, it means
that the gage is unable to identify the target ball. This could be due to
probe failure, or that the target ball is not resting centered on top of the
probe tip. Verify that the ball is in the alignment fixture; the fixture
moves freely and is seated correctly on the probe; and the ball is sitting
on the probe tip. (If the alignment or reference fixtures do not slide
onto the probe freely, the target ball may be at an incorrect distance
away from the tip.)
To test the amplitude of the probe signal, follow the steps below:
1.
Press [SETUP].
2.
Use the [ ] and [ ] keys to select Diagnostics. Press [ENTER].
3.
Use the [ ] and [ ] keys to select Hardware. Press [ENTER].
4.
Use the [ ] and [ ] keys to select Debug.
5.
Use the [
] or [
] key to turn the Debug function ON. Press
[MEAS].
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