F-2
Remote Calibration
Model 6487 Reference Manual
Introduction
This appendix contains a summary of Model 6487 remote calibration commands and a
basic remote calibration procedure. See
for complete calibration information.
Calibration commands
summarizes Model 6487 remote calibration commands.
Table F-1
Calibration commands
Command
Description
:CALibration
Calibration subsystem.
:PROTected
Commands protected by code/password.
:CODE '<code>'
Eight character code/password used to enable or unlock calibration.
(Default: KI006487.)
:CODE?
Calibration code query.
:LOCK
Lock out further calibration.
:LOCK?
Return 1 if calibration is locked, 0 otherwise.
:SENSe <NRf>
Calibrate active current range.
:DATA?
Query measurement cal constants.
:VSOurce
Voltage source calibration commands:
:NFSCale
Turn on source, set it to negative full scale for present source range.
:NFSValue <NRf>
Calibrate negative full scale using DMM reading.
:ZERO
Set source output to 0V and turn on output.
:ZVALue <NRf>
Calibrate source zero using DMM reading.
:PFSCale
Turn on source, set it to positive full scale for present source range.
:PFSValue <NRf>
Calibrate positive full scale using DMM reading.
:SOURce
Path to query source calibration constants.
:DATA?
Query constants for present source range. Three values are returned:
Vnegative, Vpositive, and Vzero.
:SAVE
Save all calibration data to non-volatile memory.
:DATE <yyyy, mm, dd>
Year, Month, Day when cal was last performed.
:DATE?
Query last cal date.
:NDUE <yyyy, mm, dd>
Year, Month, Day when 6487 is due for re-cal.
:NDUE?
Query cal due date.
:COUNt?
Returns how many times 6487 has been calibrated.
:UNPRotected
Commands not protected by code/password.
:VOFFset
Voltage offset correction.
