Section 9: TSP command reference Series 2600B System SourceMeter® instrument Reference Manual
9-202 2600BS-901-01 Rev. F/August 2021
Details
This attribute stores the adjustment date associated with the active calibration set. The adjustment
date can be read at any time but can only be assigned a new value when calibration has been
enabled with the smuX.cal.unlock() function.
You cannot change the adjustment date without first making a change to the calibration constants.
Once you change any calibration constants, you must set the adjustment date before you can save
the calibration data to the nonvolatile memory of the SMU.
This attribute is stored with the active calibration set. If a different calibration set is restored, this
attribute reflects the date stored with that set.
smuX.cal.adjustdate must be set to the date the adjustment was done using the UTC time and
date. The date is stored as the number of seconds since UTC, 12:00 am Jan 1, 1970.
Due to the internal storage format, smuX.cal.adjustdate is only accurate to within a few minutes
of the value set.
Example
smua.cal.adjustdate = os.time()
Sets the adjustment date for SMU channel A to the current time
set on the instrument.
Also see
Adjustment (on page 10-15)
os.time() (on page 9-169)
smuX.cal.date (on page 9-202)
smuX.cal.due (on page 9-203)
smuX.cal.lock() (on page 9-204)
smuX.cal.restore() (on page 9-206)
smuX.cal.save() (on page 9-207)
smuX.cal.state (on page 9-208)
smuX.cal.unlock() (on page 9-209)
smuX.cal.date
This attribute stores the calibration date of the active calibration set.
Initially set to factory
calibration date
Usage
calDate = smuX.cal.date
smuX.cal.date = calDate
The calibration date of the active calibration set
Source-measure unit (SMU) channel (for example, smua.cal.date applies to SMU
channel A)
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