Performance Check Procedure
INTRODUCTION
This Performance Check Procedure verifies the Performance Requirements
of the 2245A as listed in the Performance Characteristics (Section 6) and
helps determine the need for readjustment. These checks may also be
used as an acceptance test or as a preliminary troubleshooting aid.
You do not have to remove the wrap-around cabinet from the 2245A to do
this procedure. All checks can be made with controls and connectors ac
cessible from the outside.
Test Equipment Required
Table 7-1 lists all the test equipment required to do the Performance Check
Procedure. Test equipment specifications described are the minimum nec
essary to provide accurate results. For test equipment operating informa
tion, refer to the appropriate test equipment instruction manual.
When you use equipment other than that recommended, you may have to
make some changes to the test setups. If the exact example equipment in
Table 7-1 is not available, use the Minimum Specification column to deter
mine if any other available test equipment might be adequate to do the
check.
Performance Check Interval
To ensure instrument accuracy, check the performance of the 2245A after
every 2000 hours of operation, or once each year if used infrequently. If the
checks indicate a need for readjustment or repair, refer the instrument to a
qualified service person.
Preparation
This procedure is divided into subsections to let you check individual sec
tions of the instrument when it is not necessary to do the complete Per
formance Check. An Equipment Required block at the beginning of each
subsection lists the equipment from Table 7-1 that is needed to do the
checks in that subsection.
2245A Operators
7-1
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