IST
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The Interface Solution Experts
Maintenance & Troubleshooting
Once mounted and connected according to the in-
structions, the IST operates unattended. After the
initial calibration of the Zero and Span potentiometers,
no further adjustment is required.
A check of terminal connections is recommended
every six months. Ensure that all terminal screws
are tight and free of corrosion. Check that adequate
ventilation exists, or that heat-sinking materials are
used in mounting.
If the IST is found to be performing below specifica-
tion, complete the following checklist.
• Make sure all connections are clean and tight.
• Verify the accuracy and calibration of bench
instruments used to take measurements.
• Ensure that signal and power levels in the
instrumentation loop have not changed since the
unit was installed. Make sure that power is
within specified limits (refer to Ordering
Information).
• Perform the calibration procedurefrom this
manual. To verify proper functioning of the IST,
the unit should be removed from the application
and the procedures for setup and actual
calibration shown in the Calibration Section of
this manual should be carried out.
If, after re-calibration, the unit continues to malfunc-
tion, contact the factory Customer Service Depart-
ment. The phone numbers are listed on the back cover.
Instructions for the return of the unit to the factory for
futher testing or rehab can be found in the Customer
Support section.
Customer Support
Moore Industries is recognized as the industry leader
in delivering top quality to its customer, both in prod-
ucts and services. We perform a battery of stringent
quality asurance checks on every unit we ship. If any
Moore Industries product fails to perform up to rated
specifications, call us for help. Our highly skilled staff
of trained technicians and engineers pride themselves
on their ability to provide timely, accurate, and prac-
tical answers to your process instrumentation ques-
tions. Factory phone numbers are on the back cover.
If problems involve a particular IST, there are several
pieces of information you can gather
before
you call
the factory that will help our staff to get you answers
more efficiently. When you call, please have:
• The model number of the unit in question.
• The serial number of the unit in question.
• The job number (if available).
• The purchase order under which the unit was
shipped (if available).
