Agilent Technologies N1913a User Manual page 228

9 Maintenance
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Data questionable;ZERO ERROR ChB
Power meter zeroing failed on Channel B. The most likely cause is attempting to zero
when some power signal is being applied to the power sensor.
Hardware missing
The power meter is unable to execute the command because either no power sensor is
connected or it expects an E-series power sensor and one is not connected.
System error;Dty Cyc may impair accuracy with ECP sensor
This indicates that the sensor connected is for use with CW signals only.
System error;Ch A Dty Cyc may impair accuracy with ECP sensor
This indicates that the sensor connected to Channel A is for use with CW signals only.
System error;Ch B Dty Cyc may impair accuracy with ECP sensor
This indicates that the sensor connected to Channel B is for use with CW signals only.
System error;Sensor EEPROM Read Failed - critical data not found or unreadable
This indicates a failure with your E-Series Power Sensor. Refer to your power sensor
manual for details on returning it for repair.
System error;Sensor EEPROM Read Completed OK but optional data block(s) not found
or unreadable
This indicates a failure with your E-Series Power Sensor. Refer to your power sensor
manual for details on returning it for repair.
System error;Sensor EEPROM Read Failed - unknown EEPROM table format
This indicates a failure with your E-Series Power Sensor. Refer to your power sensor
manual for details on returning it for repair.
System error;Sensor 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 E-Series Power Sensor. Refer to your power sensor
manual for details on returning it for repair.
Agilent N1913A/1914A EPM Series Power Meters User's Guide