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Troubleshooting and Service
Troubleshooting checks
Check operational requirements. If you are experiencing difficulties
with your instrument, first carefully review the operational requirements
listed in the product specifications and the recommended setup and
operating procedures. Check the heat transfer fluid level. Make sure
that the heat transfer fluid pump is fully primed.
Check fuses. You will find the power switch and fuse holder beside the
power cord connector on the back panel of the instrument. Switch the
power switch to the off position and disconnect the power cord. Use a
small flat-bladed screwdriver or similar tool to pry out the fuse holder.
Visually check for a blown fuse. If there is any doubt, test the fuses
with a continuity checker or ohmmeter or simply replace them with
new fuses.
Check probe and stir wire. Run the A/D Test and the Probe Bin Test
to evaluate the probe operation. Refer to the Mandrel, Probe, and Stir/
Freeze Wire Alignment section for proper alignment of the sample
probe and the stir wire. Refer to the Stir/Freeze Amplitude Adjustment
section to properly adjust the stir and freeze amplitudes.
Check error messages. The software of your instrument is designed in
such a way that any incomplete task will be associated with an error
message, many self-explanatory, that will help you discover the source
of your problem. You can find all error messages and descriptions of
what they mean in Appendix A.
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