Keithley 2600a series, Reference Manual, Page: 430 / 696

19-108 Return to Section Topics 2600AS-901-01 Rev. B / September 2008
Section 19: Remote Commands Series 2600A System SourceMeter® Instruments Reference Manual
smuX.cal.unlock X = SMU channel (a or b)
Function Enables the commands that change calibration settings.
TSP-Link
accessibility
This function can be accessed from a remote TSP-Link node.
Usage
smuX.cal.unlock(password)
password
Calibration password.
Remarks • This function enables the calibration functions to change the calibration settings.
• The password when the unit is shipped from the factory is “KI0026XX”.
Details See Calibration in Section 20 .
Also see
smuX.cal.password
Example Unlocks calibration for SMU A:
smua.cal.unlock("KI0026XX")
smuX.contact.calibratehi
X = SMU channel (a or b)
Function Calibrate the high/sense high contact check measurement.
TSP-Link
accessibility
This function can be accessed from a remote TSP-Link node.
Usage
smuX.contact.calibratehi(cp1measured, cp1reference, cp2measured,
cp2reference)
cp1measured
The value measured by this SMU for calibration point 1.
cp1reference
The reference measurement for calibration point 1 as
measured externally.
cp2measured
The value measured by this SMU for calibration point 2.
cp2reference
The reference measurement for calibration point 2 as
measured externally.
Remarks • Contact check measurement calibration does not require range information.
• Typically the two calibration points used will be near 0
Ω
for calibration point 1 and 50
Ω
for
calibration point 2.
• All four measurements (
cp1measured
,
cp1reference
,
cp2measured
, and
cp2reference
)
must be made with the active calibration set. Corruption of the
calibration constants may result if this is not heeded.
• The new calibration constants will be activated immediately but they will not be
written to nonvolatile storage. Use
smuX.cal.save
to commit the new constants to nonvolatile
storage. The active calibration constants will stay in effect until the
instrument is power cycled or a calibration set is loaded from nonvolatile storage with the
smuX.cal.restore
function.
• This function will be disabled until a successful call to
smuX.cal.unloc
k is made.
Details See Calibration in Section 20 .
Also see
smuX.contact.calibratelo