Keithley 2651A Reference Manual

Model 2651A High Power System SourceMeter® Instrument Reference Manual Section 7: Command reference
2651A-901-01 Rev. A / March 2011 7-191
smuX.measure.autorangeY
This attribute stores the measurement autorange setting.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW) Yes Instrument reset
SMU reset
Recall
Saved setups smuX.AUTORANGE_ON
Usage
autoRange = smuX.measure.autorangeY
smuX.measure.autorangeY = autoRange
autoRange
The state of the measurement autorange setting; set to one of the following values:
0 or smuX.AUTORANGE_OFF: Disabled
1 or smuX.AUTORANGE_ON: Enabled
2 or smuX.AUTORANGE_FOLLOW_LIMIT: Measure range automatically set to the
limit range.
X
Source-measure unit (SMU) channel (for example, smua.measure.autorangev
applies to SMU channel A).
Y
SMU measure function (v = voltage, i = current)
Details
This attribute indicates the measurement autorange state. Its value will be smuX.AUTORANGE_OFF when the
SMU measure circuit is on a fixed range and smuX.AUTORANGE_ON when it is in autorange mode.
Setting this attribute to smuX.AUTORANGE_OFF puts the SMU on a fixed range. The fixed range will be the
present SMU measure range.
Setting this attribute to smuX.AUTORANGE_ON puts the SMU measure circuit into autorange mode. It will remain
on its present measure range until the next measurement is requested.
If source highC mode is enabled, current autorange will be set to smuX.AUTORANGE_FOLLOW_LIMIT and
cannot be changed.
Example
smua.measure.autorangev = 1
Enables voltage measurement autoranging for SMU
channel A. Alternatively, the value 1 may be replaced with
smua.AUTORANGE_ON.
Also see
reset() (on page 7-151)
setup.recall()
(on page 7-170)
smuX.measure.rangeY
(on page 7-202)
smuX.reset()
(on page 7-209)
Range
(on page 2-65)

Keithley 2651A Specifications

General

Brand	Keithley
Model	2651A
Category	Measuring Instruments
Language	English