Performance Test; Introduction - Agilent Technologies E4991A Service Manual

Performance Test

Introduction

This section provides the test procedures used to verify that the E4991A meets its
specifications. The performance tests can also be used for incoming inspection, and for
verification after troubleshooting or adjustment. If the performance tests indicate that the
E4991A is NOT operating within the specified limits, check your test setup, then proceed
to troubleshooting if necessary.
Warm Up Time
Allow the E4991A to warm up for at least 30 minutes before you execute any of the
performance tests
Ambient Conditions
Perform all performance tests in ambient conditions of 23 °C ± 5 °C, 70 % RH.
Performance Test Interval
The performance test should be performed periodically. The recommended test interval is
12 months.
NOTE The test interval depends on maintenance of use and the environmental conditions under
which the instrument is used. You may find that the test interval could be shortened or
lengthened; however, such a decision should be based on substantial quantitative data.
Performance Test Record and Calculation Sheet
Performance test record lists all test points, acceptable test limits, test result entry columns,
and measurement uncertainties. The listed measurement uncertainties are valid only when
the recommended test equipment is used.
The calculation sheet is used as an aid for recording raw measurement data, and for
calculating the performance test results.
The procedure for using the calculation sheet and performance test record is;
1. Photo copy the calculation sheet.
2. Follow the performance test procedure and record the measurement values, the
E4991A's reading, etc., into the specified column on the calculation sheet.
3. Calculate the test result using the appropriate equation given on the calculation sheet,
and record the test result into the Test Result column of the performance test record.
Measurement Uncertainties
Measurement Uncertainties (MU) values shown on manual are for reference only. Always
refer to test report for the latest MU values.
Chapter 2
Performance Test and Function Test
Performance Test
27