Keithley 2461 Reference Manual

Section
3: Functions and features Model 2461 Interactive SourceMeter® Instrument
Reference Manual
3-58 2461-901-01 A/November 2015
Front-panel sweep options
Option Description
Count
How many times the sweep should repeat. You can select one of the following
options:
• Finite: Set a specific number of times to repeat.
•
Infinite: The sweep will repeat until is it aborted.
Source Limit
Sets the source limit for measurements. The instrument cannot source levels that
exceed this limit.
Abort on Limit Determines if the sweep is stopped immediately if a limit is exceeded. You can
select one of the following options:
• ON: Abort the sweep if a limit is exceeded.
•
OFF: Complete the sweep even if a limit is exceeded.
Source Ranging
The source range that is used for the sweep. You can select one of the following
options:
• Best Fixed: The instrument selects a single fixed source range that will
accommodate all the source levels in the sweep. This avoids overshoots
during sweeps.
• Auto: The instrument selects the most sensitive source range for each
source level in the sweep.
• Fixed: The source remains on the range that is set when the sweep is
started. If a sweep point exceeds the source range capability, the source
will output the maximum level for that range.
Setting up a sweep using SCPI commands
To set up a sweep using SCPI commands, you send one of the following commands:
• :SOURce[1]:SWEep:<function>:LINear: Sets up a linear sweep for a fixed number of
measurement points.
• :SOURce[1]:SWEep:<function>:LINear:STEP: Sets up a linear source sweep
configuration list and trigger model with a fixed number of steps.
• :SOURce[1]:SWEep:<function>:LIST: Sets up a sweep based on a configuration list, which
allows you to customize the sweep.
• :SOURce[1]:SWEep:<function>:LOG: Sets up a logarithmic sweep for a set number of
measurement points.
To create a sweep:
1. Set the source function using :SOURce[1]:FUNCtion[:MODE].
2. Set the source range using :SOURce[1]:<function>:RANGe.
3. Set any other source settings that apply to your sweep. You must set source settings before the
sweep function is called.
4. If you are using :SOURce[1]:SWEep:<function>:LIST, set up the source configuration list
for your sweep.

Keithley 2461 Specifications

General

Maximum Current	7 A
Power	100 W
Resolution	6.5 digits
Source Measure Unit (SMU)	Yes
DC Voltage	100 V
Maximum Voltage	100 V
Display	5-inch capacitive touchscreen
Connectivity	USB, GPIB
Software	TSP
DC Current	7 A
Current Source Range	0 to 7 A
Voltage Measurement Range	100 mV to 100 V
Current Measurement Range	10 nA to 7 A
Voltage Measurement Resolution	100 nV