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Performance Test Record
Test Limits
Measurement
Uncertainty
Voltage Output
Measurements
Chapter 4
Table 4-1 is a form you can copy and use to record the performance
verification test results of the HP E1418A. This table shows the output
accuracy, measurement uncertainty, and the test accuracy ratio (TAR)
values. The test marked with a " Q" in the table are the Quick Verification
Tests.
The test limits are defined using the 90-day specifications. Appendix A lists
the HP E1418A specifications.
Measurement uncertainty has been calculated using the HP 34401A 90-day
specifications. The HP 34401A is set to the 6
calculations. In both the voltage and current measurement mode, the
measurement uncertainty is given as:
M.U. = % of reading + % of range
The 100 V range is used for the voltage output measurements.
The specification is given as:
M.U. = (0.0035% of reading + 0.0006% of range)
HP E1418A
% of reading
Output
+ 16.00 V
0.00056 V
+ 12.00 V
0.00042 V
+ 8.00 V
0.00028 V
+ 4.00 V
0.00014 V
0.00 V
0.00000 V
– 4.00 V
0.00014 V
– 8.00 V
0.00028 V
– 12.00 V
0.00042 V
– 16.00 V
0.00056 V
1 2
digit mode for all
% of range
Measurement
Uncertainty
0.0006 V
0.00116 V
0.0006 V
0.00102 V
0.0006 V
0.00088 V
0.0006 V
0.00074 V
0.0006 V
0.00060 V
0.0006 V
0.00074 V
0.0006 V
0.00088 V
0.0006 V
0.00102 V
0.0006 V
0.00116 V
Verification Tests 43]
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