Keithley SourceMeter 2600 Series Reference Manual page 359

Series 2600 System SourceMeters Reference Manual
Also see smuX.measure.autorangeY,
Enables volts source auto range for SMU A:
Example
smua.source.autorangev = smua.AUTORANGE_ON
smuX.source.calibrateY
Function Generates and activates new source calibration constants.
Usage
s muX.source.calibrateY(range, cp1expected, cp1reference,
cp2expected, cp2reference)
range
cp1expected
cp1reference
cp2expected
cp2reference
• This function generates and activates new calibration constants for the given range.
Remarks
The positive and negative polarities of the source must be calibrated separately. Use
a positive value for
range
• Typically the two calibration points used will be near zero for calibration point 1 and
90% of full scale for calibration point 2. Full scale for calibration point 2 should be
avoided if the SMU's source is substantially out of calibration.
• Do not use 0.0 for a negative calibration point as 0.0 is considered a positive
number.
• The two reference measurements must be made with the source using the active
calibration set. For example, source a value, measure it, and do not change the
active calibration set before issuing this command.
• The new calibration constants will be activated immediately but they will not be
written to non-volatile storage. Use
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
• This function will be disabled until a successful call to
Details See Section 16
Also see smuX.cal.restore, smuX.cal.save, smuX.makebuffer,
smuX.source.rangeY
X = SMU channel (a or b)
Y = SMU measure function (v or i) where v = voltage, i = current
The measurement range to calibrate.
The source value programmed for calibration point 1.
The reference measurement for calibration point 1 as
measured externally.
The source value programmed for calibration point 2.
The reference measurement for calibration point 2 as
measured externally.
to calibrate the positive polarity and a negative value for
range
to calibrate the negative polarity.
smuX.cal.restore
(calibration).
Return to
Instrument Control Library 12-85
smuX.cal.save
function.
smuX.measure.calibrateY
Section 12 topics
to commit the new constants to
is made.
smuX.cal.unlock
2600S-901-01 Rev. A / May 2006