User`s guide

10 Maintenance
228 N1911A/1912A P-Series Power Meters User’s Guide
Self Test
The power meter has two self test modes:
• Power on self test - occurs automatically when you turn on the power
meter.
• Troubleshooting mode - accessed via the front panel or remotely. The
front panel softkey menu allows you to run individual tests, whereas
the remote command runs a complete series of tests as listed
in“Remote Testing” on page 230.
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.
As the power on self test occurs, 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. 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 , .
Front Panel Selection of Self Tests
Press , , , to access the Self Test menu
consisting of the following:
• Instrument Self Test
•Keyboard
•Bitmaps Displays
Error List
1 of 2
Service
Self Test