Tektronix KEITHLEY SourceMeter 2606B Reference Manual page 571

Section 15: TSP command reference
smuX.cal.due
This attribute stores the calibration due date for the next calibration.
Type TSP-Link accessible
Attribute (RW) Yes
Usage
calDue = smuX.cal.due
smuX.cal.due = calDue
calDue
X
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.
This attribute is stored with the active calibration set. If a different calibration set is restored, this
attribute reflects the due date stored with that set.
smuX.cal.due must be set to the date the next calibration is required 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.due is only accurate to within a few minutes of the
value set.
Example
smua.cal.due = os.time() + 365 * 24 * 60 * 60
Also see
Adjustment (on page 17-12)
os.time() (on page 15-168)
smuX.cal.adjustdate
smuX.cal.date
smuX.cal.lock()
smuX.cal.restore()
smuX.cal.state
smuX.cal.unlock()
15-198
Affected by
SMU cal. restore
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)
(on page 15-196)
(on page 15-197)
(on page 15-199)
(on page 15-201)
(on page 15-203)
(on page 15-204)
Model 2606B System SourceMeter® Instrument Reference Manual
Where saved
SMU nonvolatile memory
Sets the SMU channel A calibration due date
equal to one year from the present time set
on the instrument.
2606B-901-01 Rev. C November 2021
Default value
0