Keithley 2450 User Manual

Section
6: SCPI command reference Model 2450 Interactive SourceMeter® Instrument
Reference Manual
6-32 2450-901-01 Rev. B/September 2013
When the zero output-off state is selected, when you turn off the output:
• The measurement sense is changed to 2-wire sense
• The source function is set to voltage
• The source voltage is set to 0
• Set the range to the presently selected range (turn off autorange)
• Program the voltage DAC to zero, and the current DAC to full scale of the present current range.
When the zero output-off state is selected, you can use the instrument as an ammeter because it is outputting
0 V.
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
If you send this command without the <function> parameter, it will set the output-off state for all
functions.
Example
:OUTP:CURR:SMOD HIMP
Sets the output-off state for the current
function so that the instrument opens the
output relay when the output is turned off.
Also see
Output-off state (on page 2-82)
:OUTPut[1][:STATe] (on page 6-34)

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