Agilent Technologies E4419B User Manual page 124

2 Power Meter Operation
When an individual test is selected, the message "Testing..." appears next
to the name of the test. When the test is complete, the message "Testing..."
is replaced by either the message "Passed" or "Failed". This pass/fail
indication excludes the keyboard test and the bitmap display test, both of
which rely on your interaction to detect a failure.
When the individual test is complete, the result is displayed until
selected. If the self test failed, information about the failure is displayed on the
screen.
Instrument Self Test
If
same tests which are run using the *TST? command.
• ROM checksum
• RAM
• RAM Battery
• Display Assembly
• Calibrator
• Measurement Assemblies
• Fan
• Serial Interface
As each test takes place, the name of the test is listed on the screen. While a
test is running, the message "Testing..." appears next to the name of the
test. As each stage of the test is completed, the message "Testing..." is
replaced by either the message "Passed" or "Failed".
Confidence Check
The confidence check requires you to carry out the following procedure.
Instructions are also displayed on the screen. The confidence check can be
carried out on both channels using the appropriate softkeys.
1 Connect the power sensor to the POWER REF output (Refer to
2 The power meter automatically makes a power measurement. If the
102
Instrument Self Test
page 35 for connection requirements for the Agilent 8480 Series power
sensors). The power reference signal is turned on automatically after any
key is pressed.
measured error is within the instrument accuracy specification, the
is selected, the following tests are run, these are the
Done
Table 2-1
E4419B Power Meter User's Guide
is
on