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HP4402.book : chapter4.fm 9 Fri Feb 12 15:32:45 1999
Error Messages
Error Messages
HP E4419B User’s Guide 4-9
-231 Data questionable;CAL ERROR ChB
Power meter calibration failed on channel B. The most likely cause is
attempting to calibrate without applying a 1 mW power to the power
sensor.
-231 Data questionable;Input Overload ChA
The power input to Channel A exceeds the power sensor’s maximum
range.
-231 Data questionable;Input Overload ChB
The power input to Channel B exceeds the power sensor’s maximum
range.
-231 Data questionable;Lower window log error
This indicates that a difference measurement in the lower window has
given a negative result when the units of measurement were
logarithmic.
-231 Data questionable;Upper window log error
This indicates that a difference measurement in the upper window has
given a negative result when the units of measurement were
logarithmic.
-231 Data questionable;ZERO ERROR ChA
Power meter zeroing failed on channel A. The most likely cause is
attempting to zero when some power signal is being applied to the
power sensor.
-231 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.
-241 Hardware missing
The power meter is unable to execute the command because either no
power sensor is connected or it expects an HP E-series power sensor
and one is not connected.
-310 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.