Keithley 2450 User Manual

Model 2450
Interactive SourceMeter® Instrument Reference Manual Section 3:
Functions and features
2450-901-01 Rev. B/September 2013 3-55
Front-panel sweep options
Option Description
Source Limit
Sets the source limit for measurements. The Model 2450 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 set 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.
5. Set the parameters for the sweep command.
6. Set the measurement function using [:SENSe[1]]:FUNCtion.
7. Set the measurement range using [:SENSe[1]]:<function>:RANGe[:UPPer].
8. Make any other settings appropriate to your sweep.
9. Send :INITiate to start the sweep.
To save your settings, save them to a user-saved setup using the *SAV command.

Keithley 2450 Specifications

General

Model	2450
Category	SourceMeter
Voltage Source Range	±200 V
Current Source Range	±1 A
DC Voltage	200 V
DC Current	1 A
Power Output	20 W
Resolution	6.5 digits
Display	5-inch capacitive touchscreen
Operating Temperature	0°C to 50°C
Connectivity	USB, LAN, GPIB
Dimensions	213 mm × 88 mm × 370 mm