Self Test; Power On Self Test - Agilent Technologies E4419B User Manual

2 Power Meter Operation

Self Test

The power meter has three distinct self test modes:
• power on self test, which occurs automatically when you turn on the power
• confidence check, which is accessed via the front panel and requires your
• troubleshooting mode, which is accessed via the front panel or remotely.

Power On Self Test

The power on self test is performed automatically when the power meter is
turned on and takes approximately 10 seconds to complete. The power on self
test consists of the following tests:
• RAM Battery
• Calibrator
• Measurement Assemblies
• Fan
• Serial Interface
• Option 001 Battery
Refer to
individual test.
As the power on self test takes place, the message "Testing..." appears next
to the name of the test which is being performed. When each test is complete,
the message "Testing..." is replaced by either the message "Passed" or
"Failed". The Option 001 Battery test can also produce the message "Not
Present". If a failure occurs, the message "Power-up H/W Err" appears.
Any errors are also written to the error queue and can be examined in the
"Errors" screen by pressing
100
meter.
assistance in order to verify the POWER REF and measurement path
accuracy.
The front panel softkey menu allows you to run individual tests, whereas
the remote command runs a complete series of tests as listed in
Testing" on page 103.
"Test Descriptions" on page 104, if you require a description of each
, ,
Error List
E4419B Power Meter User's Guide
"Remote
.