Keithley 2182, Service Manual, Page: 104 / 120

:DATA?
(:CALibration:PROTected:DATA?)
Purpose To request the calibration constants for the active range.
Format
:cal:prot:data?
Response Comma-separated ASCII floating-point constants
Description The
:CAL:PROT:DATA?
query requests the calibration constants for the
active range. The returned constants are in ASCII floating-point format
delimited by commas.
NOTE To request the appropriate constants choose the desired range, and send the
:DATA?
query.
Example
:CAL:PROT:DATA?
Request cal constants.
Calibration step commands
:DC
:CALibrate:PROTected:DC:STEPn
Purpose To perform various calibration steps.
Format
:cal:prot:dc:stepn
Parameters See Table B-3 .
Description The
:DC
commands perform the various calibration steps summarized in
Table B-3 . All commands except :STEP5 are part of the normal calibration
procedure. See Section 2 for details on performing the calibration steps.
NOTE The appropriate calibration signal must be connected to the input jack before
sending the corresponding
:STEP
command.
Example
:CAL:PROT:DC:STEP3 10
Perform normal cal 10V step.
Table B-3
Calibration steps
Calibration step command Description
:CAL:PROT:DC:STEP1 Low thermal short.
:CAL:PROT:DC:STEP2 Open-circuit input.
:CAL:PROT:DC:STEP3 10 +10V calibration
:CAL:PROT:DC:STEP4 -10 -10V calibration
:CAL:PROT:DC:STEP5 Analog output*
* Factory calibration only. Send :DIAG:KEIT:CAL:UNLOCK to enable.
Calibration Reference B-9