Technical data

7 Contacting Keysight Technologies
116 N1911A/1912A P-Series Power Meters Service Guide
Check the Basics
Problems can be solved by repeating what was being performed when the
problem occurred. A few minutes spent in performing these simple checks
may eliminate time spent waiting for instrument repair. Before calling
Keysight Technologies or returning the power meter for service, please
make the following checks:
• Check that the line socket has power.
• Check that the power meter is plugged into the proper ac power
source.
• Check that the power meter is switched on.
• Check that the line fuse is in working condition.
• Check that the other equipment, cables, and connectors are
connected properly and operating correctly.
• Check the equipment settings in the procedure that was being used
when the problem occurred.
• Check that the test being performed and the expected results are
within the specifications and capabilities of the power meter.
• Check the power meter display for error message.
• Check operation by performing the self tests.
• Check with a different power sensor.