Keithley 2657A, Reference Manual, Page: 494 / 805

Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 7: TSP command reference
2657A-901-01 Rev. B/December 2012 7-181
Example
smua.cal.due = os.time() + 365 * 24 * 60 * 60 Sets the SMU channel A calibration due date
equal to one year from the current time set on
the instrument.
Also see
Adjustment (on page B-14)
os.time() (on page 7-147)
smuX.cal.adjustdate (on page 7-178)
smuX.cal.date (on page 7-179)
smuX.cal.lock() (on page 7-181)
smuX.cal.restore() (on page 7-184)
smuX.cal.state (on page 7-185)
smuX.cal.unlock() (on page 7-186)
smuX.cal.fastadc()
This function performs calibration of the fast analog-to-digital converter (fast ADC).
Type TSP-Link accessible Affected by Where saved Default value
Function
Yes
Usage
smu
X
.cal.fastadc()
X
Source-measure unit (SMU) channel (for example,
smua.cal.fastadc()
specifies SMU channel A)
Details
This function automatically performs all the steps required to calibrate the fast ADC. This function uses the
readings obtained when calibrating the measure ranges. Make sure both voltage and current calibration has
been completed before calling this function.
Example
smua.cal.fastadc() Performs fast ADC calibration for SMU Channel A.
Also see
Adjustment (on page B-14)
smuX.measure.calibrateY() (on page 7-196)
smuX.cal.lock()
This function disables the commands that change calibration settings.
Type TSP-Link accessible Affected by Where saved Default value
Function
Yes
Usage
smu
X
.cal.lock()
X
Source-measure unit (SMU) channel (for example,
smua.cal.lock()
specifies
SMU channel A)