Warning Message - Agilent Technologies E4980A Service Manual

Error Messages
Error number: 45

Warning Message

A warning message is dispalyed in the instrument status display area in the lower-left part
of the display. Pressing any of the front panel keys or executing the :DISP:CCL command
clears the message.
This message simply appears on the display since it is not known to remote environments
such as GPIB. This message is not displayed when another error message has been already
displayed in the instrument message/warning area.
The warning messages for this instrument are as follows.
Numeric
1 I bias unit
The E4980A finds one current bias unit (42841A) connected.
2 I bias units
The E4980A finds two current bias units (42841A) connected.
A
ALC unable to regulate
The voltage level setting is inappropriate for using the ALC function. The ALC function
does not work and the operation will be the same as when the ALC function is turned off.
The measurement data status is set to 4. Refer to E4980A User's Guide.
C
Clear the table first
This error occurs when the value of MODE has been changed when the LIMIT TABLE
SETUP screen is moved to another screen or the sweep parameter on the LIST SWEEP
SETUP screen is changed even though a sweep list for another measurement parameter
exists. Clear the table first.
Correction, not effective
The correction function does not work because the MULTI correction mode is used but the
test frequency is not equal to the spot frequency.
I
Improper high/low limits
The upper limit value is less than the lower limit value. Set the lower limit value to less
than the upper limit value.
Incompatible state file
The setting file recalled from a USB memory device has been saved using an E4980A with
a different firmware version or different options. There may be some parameters set up
incorrectly. Check the setting.
150 Appendix D