HP EPM-441A User Manual page 135

-310 System error;Detector EEPROM < > data not found or
unreadable
Where < > refers to the sensor data block covered, for example,
Linearity, Temp - Comp (temperature compensation).
This indicates a failure with your HP E-series power sensor. Refer to
your power sensor manual for details on returning it for repair.
-310 System error;Sensors connected to both front and rear inputs.
You cannot connect two power sensors to the one channel input. In this
instance the power meter detects power sensors connected to both it's
front and rear channel inputs.
-321 Out of memory
The power meter required more memory than was available to run an
internal operation.
-330 Self-test Failed;
The -330, "Self-test Failed" errors indicate that you have a problem
with your power meter. Refer to "Contacting Hewlett-Packard", on
page 2-53 for details of what to do with your faulty power meter.
-330 Self-test Failed;Measurement Channel Fault
Refer to "Measurement Assembly", on page 2-50 if you require a
description of the Measurement Assembly test.
-330 Self-test Failed;Battery Fault
Refer to "Battery", on page 2-50 if you require a description of the
battery test.
-330 Self-test Failed;Calibrator Fault
Refer to "Calibrator", on page 2-51 if you require a description of the
calibrator test.
-330 Self-test Failed;ROM Check Failed
Refer to "ROM Checksum", on page 2-50 if you require a description of
the ROM Checksum test.
-330 Self-test Failed;RAM Check Failed
Refer to "RAM", on page 2-50 if you require a description of the RAM
test.
HP EPM-441A User's Guide
Error Messages
Error Messages
4-9