Tektronix KEITHLEY SourceMeter 2606B Reference Manual page 569

Section 15: TSP command reference
smuX.cal.adjustdate
This attribute stores the date of the last calibration adjustment.
Type TSP-Link accessible
Attribute (RW) Yes
Usage
adjustDate = smuX.cal.adjustdate
smuX.cal.adjustdate = adjustDate
adjustDate
X
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()
Also see
Adjustment (on page 17-12)
os.time() (on page 15-168)
smuX.cal.date
smuX.cal.due
smuX.cal.lock()
smuX.cal.restore()
smuX.cal.save()
smuX.cal.state
smuX.cal.unlock()
15-196
Affected by
SMU cal. restore
Date of the last adjustment
Source-measure unit (SMU) channel (for example, smua.cal.adjustdate applies
to SMU channel A)
(on page 15-197)
(on page 15-198)
(on page 15-199)
(on page 15-201)
(on page 15-202)
(on page 15-203)
(on page 15-204)
Model 2606B System SourceMeter® Instrument Reference Manual
Where saved
SMU nonvolatile memory
Sets the adjustment date for SMU channel A to the current time
set on the instrument.
2606B-901-01 Rev. C November 2021
Default value
Initially set to factory
calibration date