Service manual

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
source 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 4-1 is
derived from the specifications for the source used for the test, and
represents the expected accuracy of the source. The value in the "Test
Accuracy Ratio (TAR)" column of Table 4-1 is the ratio of multimeter
accuracy to measurement uncertainty, rounded to the nearest integer.
Verification Test
Examples
Each Performance Verification Test includes an example program to
perform the test. Each example uses address 70903 for the multimeter,
and an HP 9000 Series 200/300 computer running BASIC commands.
You may need to change the multimeter 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 Agilent
E1326B/E1411B User’s Manual for information on multimeter Standard
Commands for Programmable Instruments (SCPI) commands.
Functional
Verification
Test
The functional verification test for the Agilent E1326B multimeter
consists of the multimeter self-test. You can perform this test any time
to verify the multimeter is functional and is communicating with the
mainframe, external computer and/or external terminal.
Self-Test
Procedure
This test verifies the multimeter is communicating with the mainframe,
external controller, and/or external terminal by performing a multimeter
self-test. Do the following steps to perform the self-test:
1. Verify the multimeter is correctly installed in the mainframe.
2. Connect a power cable to the mainframe and set mainframe
power ON. Verify proper mainframe power-up sequence.
(See the mainframe user’s manual for additional information.)
If correct, proceed with step 3. If incorrect, troubleshoot the
problem before proceeding.
4-2 Verification Tests