Keithley 6514, Instruction Manual

Page: 327 / 334

Remote calibration
Calibration commands
Table H-1 summarizes Model 6514 calibration commands.
Remote calibration overview
The steps below outline the general procedure for calibrating the Model 6514 using remote
commands. Refer to Section 19 for details on calibration steps, calibration points, and test equip-
ment connections.
1. Send the following command to unlock calibration:
:CAL:PROT:CODE ‘KI006514’
Note that the above command uses the factory default code.
2. Perform current and voltage offset correction by sending the following commands:
:CAL:UNPR:IOFF
:CAL:UNPR:VOFF
Be sure the appropriate connections are made to the INPUT jack before sending each
command (cap for IOFF; short for VOFF).
Table H-1
Calibration commands
Command Description
:CALibration
:PROTected
:CODE ‘<code>’ Eight character code/password used to enable or unlock
calibration. (Default: KI006514.)
:CODE? Calibration code query.
:LOCK Lock out further calibration.
:LOCK? Return 1 if calibration is locked, 0 otherwise.
:SENSe <NRf> Calibrate active function and range.
:DATA? Query measurement cal constants.
:SAVE Save all calibration data to non-volatile memory.
:DATE <NRf, NRf, NRf> Year, Month, Day when cal was last performed.
:DATE? Query last cal date.
:NDUE <NRf, NRf, NRf> Year, Month, Day when 6514 is due for re-cal.
:NDUE? Query cal due date.
:COUNt? Returns how many times a 6514 has been calibrated.
:UNPRotected
:VOFFset Voltage Offset correction.
:IOFFset Current Offset correction.
H-4 Calibration Options