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Introduction to Operation
Note
Multimeter Self-Test
16 Getting Started with the HP E1326B/E1411B Multimeter
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This section contains information on checking communication between the
multimeter, mainframe, and computer. It includes information on returning
the multimeter to a known operating state should programming errors occur
or if you simply want to start over. It also shows how to send a command to
configure the multimeter and make a measurement.
The HP E1411B has a "Failed" annunciator and an "Access" annunciator on
the faceplate. The "Failed" annunciator turns on if the multimeter does not
properly respond during the mainframe's power-on sequence. If this
occurs, return the multimeter to Hewlett-Packard for service. The "Access"
annunciator turns on each time the multimeter receives a command.
Once the mainframe completes its power-on sequence, the multimeter is
ready for use. Sending the self-test command is an easy way to verify that
you are properly addressing the multimeter. Also, the self-test is useful in
locating intermittent problems that might occur during operation. The
command used to execute the self-test is:
*TST?
You can also run the self-test by selecting "TEST" from the multimeter's
front panel menu on the HP E1301A mainframe. Upon execution, the
self-test resets the multimeter, performs the test, and returns one of the
codes listed in Table 1-2.
The following program executes the self-test. The program assumes the
mainframe (command module for C-size systems) is at primary HP-IB
address of 09 and the multimeter is at secondary address 03. The program
also assumes an HP 9000 Series 200/300 computer is used.
10
! Send the self-test command to the multimeter.
20
OUTPUT 70903;"*TST?"
30
! Enter and display the self-test code.
40
ENTER 70903;A
50
PRINT A
60
! Reset the multimeter.
70
OUTPUT 70903;"*RST"
80
END
After the test passes, always reset the multimeter to return it to a known state.
Chapter 1
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