Keithley SourceMeter 2600 Series Reference Manual page 340

12-66 Instrument Control Library
smuX.contact.calibratehi
Function Calibrate the high/sense high contact check measurement.
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.
• Contact check measurement calibration does not require range information.
Remarks
• Typically the two calibration points used will be near 0Ω for calibration point 1 and
50Ω 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 non-volatile 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 non-volatile storage
with the smuX.cal.restore function.
• This function will be disabled until a successful call to smuX.cal.unlock is made.
Details See Section 16
Also see smuX.contact.calibratelo
smuX.contact.check
Function Determine if contact resistance is lower than threshold.
Usage flag = smuX.contact.check() -- check contact resistance against threshold
Remarks Attempting to perform a contact check measurement when any of the following
conditions exists will generate an error:
• SMU is configured as a current source with the output on.
• Output is off in High-Z mode.
• Current limit set to less than 1mA.
Details See Section 3
Also see smuX.contact.threshold,
2600S-901-01 Rev. A / May 2006
Series 2600 System SourceMeters Reference Manual
X = SMU channel (a or b)
(calibration).
X = SMU channel (a or b)
for connections.
smuX.contact.speed
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