Series 2600B System SourceMeter® instrument Reference Manual Section 9: TSP command reference
2600BS-901-01 Rev. F/August 2021 9-203
Details
This attribute stores the calibration date that is associated with the active calibration set. The
calibration 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. It is typically set to the date when the
instrument was calibrated.
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.date must be set to the date the calibration 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.date is accurate to within a few minutes of the
value set.
Example
smua.cal.date = os.time()
Sets calibration date for SMU channel A to the present time set
on the instrument.
Also see
Adjustment (on page 10-15)
os.time() (on page 9-169)
smuX.cal.adjustdate (on page 9-201)
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.due
This attribute stores the calibration due date for the next calibration.
Usage
calDue = smuX.cal.due
smuX.cal.due = calDue
Due date of next calibration (0 indicates that no date is set)
Source-measure unit (SMU) channel (for example, smua.cal.due applies to
SMU channel A)
Details
This attribute stores the calibration due date associated with the active calibration set. The calibration
due 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. It is typically set to the date when the next
calibration should be performed.
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