Keithley 2450 User Manual

Section
8: TSP command reference Model 2450 Interactive SourceMeter® Instrument
Reference Manual
8-140 2450-901-01 Rev. B/September 2013
When the guard output-off state is selected and the output is turned off, the following actions occur:
• The measurement sense is changed to 2-wire sense
• The current source is selected and set to 0 A
• The voltage limit is set to 10% full scale of the present voltage range
Example
smu.source.offmode = smu.OFFMODE_HIGHZ
Sets the output-off state so that the instrument
opens the output relay when the output is turned off.
Also see
Output-off state (on page 2-82)
smu.source.output (on page 8-140)
smu.source.output
This attribute enables or disables the source output.
Type TSP-Link accessible Affected by Where saved Default value
Attribute (RW)
Yes
Restore configuration
Instrument reset
Power cycle
Source configuration list
Function change
Configuration script
Source configuration list
smu.OFF
Usage
sourceOutput = smu.source.output
smu.source.output = sourceOutput
sourceOutput
Switch the source output off: smu.OFF or 0
Switch the source output on:
smu.ON
or
1
Details
When the output is switched on, the instrument sources either voltage or current, as set by smu.source.func.
Example
smu.source.output = smu.ON
Switch the source output of the instrument to
on.
Also see
Turning the Model 2450 output off (on page 2-6)
smu.source.offmode (on page 8-139)

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