Agilent Technologies 4294A Service Manual download pdf (Page 492)

492 Appendix D

Error messages

Error number: 0

NOTE If an error with a positive error number occurs, only its error message is displayed on the

LCD following the string of "CAUTION:"(in this case, its error number is not displayed).

On the other hand, if an error with a negative error number occurs, CAUTION: GPIB error

occurred" is always displayed on the LCD. When error messages are outputted through

GPIB, their error number and error message are outputted for all errors ("CAUTION:" is

not added). Some messages displayed on the LCD do not have "CAUTION:"; these are not

error messages. Messages without "CAUTION:" are not described here.

Errors with a negative error number are basically general errors for GPIB instruments

defined by IEEE488.2. On the other hand, errors with a positive error number are ones

defined specifically for the 4294A.

Order of error number

0 (No error)

No error has occurred.

This message is not displayed on the LCD. 0 is returned as the error number if no error has

occurred in the instrument when the OUTPERRO? command is sent through GPIB.

10 ADDITIONAL STANDARDS NEEDED

Before the measurement of all the calibration standards (OPEN, SHORT, LOAD) required

to complete user calibration or four-terminal pair extension setting were completed, an

GPIB command (CALDON or ECALDON) to calculate error coefficients was sent. The

command was invalid. Measure all the required calibration standards.

11 CALIBRATION REQUIRED

In user calibration or fixture compensation, though error coefficients based on the

measurement of the required calibration standards (OPEN, SHORT, or LOAD) had not

been acquired, an GPIB command (CALST

ON, COMCA ON, COMCB ON, or COMCC

ON) that turned on the user calibration function or fixture compensation function was sent.

Valid error coefficients were not detected. The command was invalid. For user calibration,

it is required to measure all the calibration standards (OPEN, SHORT, LOAD) and acquire

error coefficients based on the measurement. On the other hand, for fixture compensation,

it is required to measure a calibration standard (OPEN, SHORT, or LOAD) corresponding

to the fixture compensation function (OPEN compensation function, SHORT

compensation function, or LOAD compensation function) you want to turn on and obtain

error coefficients based on the measurement.

12 CALIBRATION NOT USABLE

A command to execute data measurement for unnecessary (not allowed) calibration (user

calibration or fixture compensation) for the current adapter selection is sent. The command

is invalid. For example, when NONE (no adapter) is selected as the adapter selection,

sending the CALA command, which executes OPEN data measurement for the user

calibration, causes this error (when the adapter selection is NONE, you cannot execute the

user calibration).

Execute the measurement of necessary (allowed) calibration data for the current adapter

selection. For more information on the appropriate adapter selection and calibration, refer

1 2 ... 487 488 489 490 491 492 493 494 495 496 497 ... 517 518

Comments to this Manuals

No comments

Agilent Technologies 4294A Service Manual Page 492

Comments to this Manuals

Related products and manuals for Multimeters Agilent Technologies 4294A