Keithley 2614B Reference Manual

Series 2600B
System SourceMeter® Instrument Reference Manual Section 7:
TSP command reference
2600BS-901-01 Rev. B / May 2013 7-199
Details
This attribute indicates the measurement autorange state. Its value is 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 is the present
SMU measure range.
Setting this attribute to smuX.AUTORANGE_ON puts the SMU measure circuit in autorange mode. It remains on
its present measure range until the next measurement is requested.
If source highC mode is enabled, current autorange is 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
Autoranging (on page 2-84)
Range (on page 2-82)
reset() (on page 7-160)
setup.recall() (on page 7-180)
smuX.measure.rangeY (on page 7-210)
smuX.reset() (on page 7-216)
smuX.measure.autozero
This attribute enables or disables of the internal reference measurements (autozero) of the source-measure unit.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW)
Yes
Instrument reset
SMU reset
Recall setup
Saved setup
2 (smuX.AUTOZERO_AUTO)
Usage
azMode = smuX.measure.autozero
smuX.measure.autozero = azMode
azMode
Indicates status of autozero; set to one of the following values:
0 or smuX.AUTOZERO_OFF: Autozero disabled
1 or smuX.AUTOZERO_ONCE: Performs autozero once, then disables autozero
2 or smuX.AUTOZERO_AUTO: Automatic checking of reference and zero
measurements; an autozero is performed when needed
X
Source-measure unit (SMU) channel (for example, smua.measure.autozero
applies to SMU channel A)

Keithley 2614B Specifications

General

Brand	Keithley
Model	2614B
Category	Measuring Instruments
Language	English