Smu.measure.autorangehigh - Keithley 2461 Reference Manual

Section 8: TSP command reference
Details
This command determines how the range is selected.
When this command is set to off, you must set the range. If you do not set the range, the instrument
remains at the range that was last selected by autorange.
When this command is set to on, the instrument automatically goes to the most sensitive range to
perform the measurement.
If a range is manually selected through the front panel or a remote command, this command is
automatically set to off.
Example
smu.measure.func = smu.FUNC_DC_CURRENT
smu.measure.autorange = smu.ON
Also see
Ranges (on page 2-124)
smu.measure.range

smu.measure.autorangehigh

When autorange is selected, this attribute represents the highest measurement range that is used when the
instrument selects the measurement range automatically.
Type TSP-Link accessible
Attribute (RW) Yes
Usage
highRange = smu.measure.autorangehigh
smu.measure.autorangehigh = highRange
highRange
Details
This command can be written to and read for resistance measurements. For current and voltage
measurements, it can only be read.
For current and voltage measurements, the upper limit is controlled by the current or voltage limit.
For resistance measurements, you can use this command when automatic range selection is enabled
to put an upper bound on the range that is used for resistance measurements.
The upper limit must be more than the lower limit.
If the lower limit is equal to the upper limit, automatic range setting is effectively disabled.
8-132
Model 2461 Interactive SourceMeter® Instrument Reference Manual
(on page 8-166)
Affected by
Restore configuration
Instrument reset
Power cycle
Measure configuration list
Function change
The highest resistance measurement range that is used when the range is set
automatically:
Current: 1 µA to 7 A (10 A pulsed)
•
Voltage: 0.2 V to 100 V
•
Resistance: 2 Ω to 200 MΩ
•
Set the measurement function to current.
Set the range to be set automatically.
Where saved Default value
Configuration script
Resistance: 200 MΩ
Measure configuration list
Voltage: 7 V
Current: 100 mA
2461-901-01 A/November 2015