Agilent Technologies 4294A Instruction Manual download pdf (Page 440)

432 Appendix C

Error messages

CALIBRATION NOT USABLE

four-terminal pair extension.

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

to Table 6-1, “Device Connection and Corresponding Adapter Selection and Calibration,”

on page 130

11 CALIBRATION REQUIRED

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

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

been acquired, a GP-IB command (CALST ON, COMCA ON, COMCB ON, or COMCC

ON) to turn on the user calibration function or fixture compensation function is sent. Valid

error coefficients are not detected, and the command is invalid. For user calibration, it is

necessary to measure all calibration standards (OPEN, SHORT, LOAD) and acquire error

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

necessary 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 select and obtain error coefficients based

on the measurement.

-281 Cannot create program

Programs cannot be created. Insufficient memory is suspected.

35 CAN'T CALCULATE EQUIVALENT PARAMETERS

Because measurement data does not match the selected equivalent circuit, equivalent

circuit parameters cannot be calculated. Acquire data again or select another equivalent

circuit.

82 CAN'T CHANGE—ANOTHER CONTROLLER ON BUS

When an active controller is on the same GP-IB bus, you attempt to set the Agilent 4294A

as a system controller. Unless another active controller is removed from the same GP-IB

bus, you cannot set the 4294A as a system controller.

133 CAN'T CHANGE ON LIST SWEEP

When the sweep type is set to the list sweep, you attempt to execute a command to specify

the lower limit of a partial search range (SEARMIN) or a command to specify the upper

limit of a partial search range (SEARMAX) and, as a result, the command is ignored.

When the sweep type is the list sweep, you cannot specify a partial search range by using

the lower limit and the upper limit. You must first specify a sweep type other than the list

sweep (command: SWPT LIN or SWPT LOG).

130 CAN'T CHANGE ON ZERO SPAN

During the execution of the list sweep when the sweep span of each segment is zero, you

attempt to change the list sweep span (integrated total span of individual segments

specified as the horizontal axis of the graph for the list sweep) to a single span (specifying

a linear frequency axis for the horizontal axis of a graph whose left edge and right edge are

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Agilent Technologies 4294A Instruction Manual Page 440

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