Tektronix Keithley 2651A Reference Manual page 592

Model 2651A High Power System SourceMeter® Instrument Reference Manual
The new calibration constants are activated immediately but they are not written to nonvolatile
memory. Use the smuX.cal.save() function to save the new constants to nonvolatile memory. The
active calibration constants stay in effect until the instrument is power cycled or a calibration set is
loaded from nonvolatile memory with the smuX.cal.restore() function.
This function is only available when calibration is unlocked using smuX.cal.unlock().
Example
smua.measure.calibratev(1, 1e-4, 1e-5, 0.92, 0.903) SMU channel A adjusts voltage
Also see
Adjustment (on page 12-15)
smuX.cal.lock()
smuX.cal.restore()
smuX.cal.save()
smuX.cal.unlock()
smuX.source.calibrateY()
smuX.measure.count
This attribute sets the number of measurements made when a measurement is requested.
Type TSP-Link accessible
Attribute (RW) Yes
Usage
count = smuX.measure.count
smuX.measure.count = count
count
Details
This attribute controls the number of measurements made any time a measurement is requested.
When using a reading buffer with a measure command, this attribute also controls the number of
readings to be stored.
If the count is set to a value greater than 1, any measurement delay set by smuX.measure.delay
only occurs before the first measurement, while the smuX.measure.interval controls the interval
between successive measurements.
2651A-901-01 Rev. C October 2021
(on page 7-230)
(on page 7-233)
(on page 7-234)
(on page 7-236)
(on page 7-268)
Affected by
Instrument reset
SMU reset
Recall setup
Number of measurements
Section 7: TSP command reference
measurement using following values: 1 V
calibration range, 1e−4 for +zero
measurement reading, 1e−5 for +zero
DMM measurement reading, 0.92 for
+FS measurement reading, and 0.903
for the +FS DMM measurement reading.
Where saved Default value
Saved setup 1
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