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Model 2657A High Power System SourceMeter® Instrument Reference Manual
Appendix B: Calibration
2657A-901-01 Rev. B/December 2012
B-19
Calibration commands quick reference
The following table summarizes remote calibration commands. For a more complete description of
these commands, refer to the
Calibration commands
Command Description
smua.cal.adjustdate =
adjustDate
Set date when the adjustment was done.
smua.cal.date =
calDate
Set calibration date (
calDate
of 0 indicates date not set).
smua.cal.due =
calDue
Set date when calibration should be performed (
calDue
of 0
indicates date not set).
smua.cal.fastadc()
Performs calibration adjustment of the fast analog-to-digital
converter (ADC).
smua.cal.lock()
Lock out calibration.
smua.cal.ovp()
Performs calibration adjustment of the overvoltage protection
circuit (OVP).
smua.cal.password = "
newPassword
"
Change password to "
newPassword
".
smua.cal.polarity =
calPolarity
Set polarity:
smua.CAL_AUTO
(automatic polarity).
smua.CAL_NEGATIVE
(negative polarity).
smua.CAL_POSITIVE
(positive polarity).
smua.cal.restore(
calset
)
Load set of calibration constants:
smua.CALSET_NOMINAL
(nominal constants).
smua.CALSET_FACTORY
(factory constants).
smua.CALSET_DEFAULT
(normal constants).
smua.CALSET_PREVIOUS
(previous constants).
smua.cal.save()
Store constants in nonvolatile memory as DEFAULT
calibration set.
calstate
= smua.cal.state
Request calibration state:
smua.CALSTATE_CALIBRATING
smua.CALSTATE_LOCKED
smua.CALSTATE_UNLOCKED
smua.cal.unlock("
password
")
Unlock calibration (default password:
KI0026XX
)
smua.measure.calibratei(
range
,
cp1Measured
,
cp1Reference
,
cp2Measured
,
cp2Reference
)
Adjust current measurement range calibration*:
±
range
(measurement range to adjust).
cp1Measured
(Model 2657A measured value for cal. point 1).
cp1Reference
(reference measurement for cal. point 1).
cp2Measured
(Model 2657A measured value for cal. point 2).
cp2Reference
(reference measurement for cal. point 2).
smua.measure.calibratev(
range
,
cp1Measured
,
cp1Reference
,
cp2Measured
,
cp2Reference
)
Adjust voltage measure range calibration*:
±
range
(measurement range to adjust).
cp1Measured
(Model 2657A measured value for cal. point 1).
cp1Reference
(reference measurement for cal. point 1).
cp2Measured
(Model 2657A measured value for cal. point 2).
cp2Reference
(reference measurement for cal. point 2).
smua.source.calibratei(
range
,
cp1Expected
,
cp1Reference
,
cp2Expected
,
cp2Reference
)
Adjust current source range calibration*:
±
range
(source range to adjust).
cp1Expected
(source value programmed for cal. point 1).
cp1Reference
(reference measurement for cal. point 1).
cp2Expected
(source value programmed for cal. point 2).
cp2Reference
(reference measurement for cal. point 2).
Содержание 2657A
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