Tektronix KEITHLEY 2600B Series User Manual

Section 9: TSP command reference Series 2600B System SourceMeter® instrument Reference Manual
9-206 2600BS-901-01 Rev. F/August 2021
This attribute does not affect the smuX.measure.calibrateY() command. The polarity for
smuX.measure.calibrateY() is dictated by the range parameter that is defined for it. The
measurement calibration commands require the measurements provided to have been made using
the polarity being calibrated.
When making measurements for calibration points far away from zero, the desired polarity constants
are inherently used. However, when making measurements near zero, it is possible that the
instrument could use the calibration constants from the wrong polarity. Setting smuX.cal.polarity
to positive or negative forces measurements to be made using the calibration constants for a given
polarity, rather than basing the choice on the raw measurement data.
This attribute can only be set to positive or negative when calibration is unlocked. This attribute is
automatically set to smuX.CAL_AUTO when calibration is locked.
Example
smua.cal.polarity = smua.CAL_POSITIVE
Selects positive calibration constants for all subsequent measurements on SMU channel A.
Also see
Adjustment (on page 10-15)
reset() (on page 9-177)
smuX.cal.lock() (on page 9-204)
smuX.cal.unlock() (on page 9-209)
smuX.measure.calibrateY() (on page 9-219)
smuX.reset() (on page 9-236)
smuX.source.calibrateY() (on page 9-239)
smuX.cal.restore()
This function loads a stored set of calibration constants.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function
Yes
Usage
smuX.cal.restore()
smuX.cal.restore(calset)
X
Source-measure unit (SMU) channel (for example, smua.cal.restore() applies
to SMU channel A)
calset
The calibration set to be loaded; set calset to one of the following values:
▪ 0 or smuX.CALSET_NOMINAL: A set of calibration constants that are
uncalibrated, but set to nominal values to allow rudimentary functioning of the
instrument
▪ 1 or smuX.CALSET_FACTORY: The calibration constants when the instrument
left the factory
▪ 2 or smuX.CALSET_DEFAULT: The normal calibration set
▪ 3 or smuX.CALSET_PREVIOUS: The calibration set that was used before the
last default set was overwritten

Tektronix KEITHLEY 2600B Series Specifications

General

Brand	Tektronix
Model	KEITHLEY 2600B Series
Category	Measuring Instruments
Language	English