![Keithley SourceMeter 2600B Series Скачать руководство пользователя страница 538](http://html2.mh-extra.com/html/keithley/sourcemeter-2600b-series/sourcemeter-2600b-series_reference-manual_4085220538.webp)
Series 2600B System SourceMeter® Instrument Reference Manual
Section 7: TSP command reference
2600BS-901-01 Rev. C / August 2016
7-199
Also see
(on page B-18)
(on page 7-164)
(on page 7-199)
(on page 7-200)
(on page 7-201)
(on page 7-203)
(on page 7-204)
(on page 7-204)
smuX.cal.date
This attribute stores the calibration date of the active calibration set.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW)
Yes
SMU cal. restore
SMU nonvolatile
memory
Initially set to factory calibration date
Usage
calDate
= smu
X
.cal.date
smu
X
.cal.date =
calDate
calDate
The calibration date of the active calibration set
X
Source-measure unit (SMU) channel (for example,
smua.cal.date
applies to
SMU channel A)
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
smu
X
.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 will reflect the date stored with that set.
smu
X
.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,
smu
X
.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 current time
set on the instrument.