Performance Test
Record
Table 4-2, Performance Test Record for the HP E1328A DAC, at the end of
this chapter, provides space to enter the results of each Performance
Verification test and to compare the results with the upper and lower limits
for the test. You can make a copy of this form, if desired.
NOTE
The upper and lower limits in the Performance Test Record assume the test
equipment used is calibrated and operating at peak performance. If this is
not the case/ problems can occur.
For example, an uncalibrated HP 3458A multimeter may cause what seems
to be an inaccurate measurement. This condition must be considered when
observed measurements do not agree with the performance test limits.
The value in the "Measurement Uncertainty" column of Table 4-2 is derived
from the specifications for the HP 3458A multimeter used for the test, and
represents the expected accuracy of the HP 3458A. The value in the "Test
Accuracy Ratio (TAR)" column of Table 4-2 is the ratio of DAC accuracy
to HP 3458A measurement uncertainty. If the TAR is
≤
10:1, the ratio is
rounded to the nearest integer. If the TAR is
≥
10:1, the TAR is shown as
>10:1.
Verification Test
Examples
Each Performance Verification Test includes an example program to
perform the test. Each example uses address 70909 for the DAC, and an
HP 9000 Series 200/300 computer running HP BASIC commands. You
may need to change the DAC address and/or command syntax to perform
the examples for your setup.
As required, see the mainframe user’s manual for information on address
selection and cabling guidelines. See the HP E1328A User’s Manual for
information on Standard Commands for Programmable Instruments (SCPI
commands) for the DAC.
20 Verification Tests
Chapter 4