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Section Topics
2400S-903-01 Rev. E / September 2011
Section 1: Introduction
Series 2400 SourceMeter® Quick Start Guide
Measure-only example
— Table 9 shows a typical command sequence to measure current only.
Auto ohms example — Table 10 shows a typical command sequence to use auto ohms to
measure resistance. Note that 4-wire sensing is used for this example. See Basic connections for
details on sensing.
Manual ohms example — Table 11 shows a typical command sequence to use manual ohms to
measure resistance. This example uses auto range for current measurements. If you were to use
manual ranging, you should select the lowest possible current range for the measurement. For
example, to measure a 1M
Ω
resistor with the source set to 2V, the 1µA measure range should be
selected to achieve the best accuracy (2V/1µA = 2M
Ω
). Note that 2-wire sensing is used for this
example. See Basic connections for details on sensing.
Table 1-8
Command sequence for source-measure example
Command*
Comments
*RST
Restore GPIB defaults (one-shot source-measure
mode).
:SOUR:FUNC VOLT
Select voltage source function.
:SOUR:VOLT:MODE FIX
Select fixed voltage source mode.
:SOUR:VOLT:RANG 20
Select 20V source range.
:SOUR:VOLT:LEV 10
Set source output level to 10V.
:SENS:FUNC “CURR”
Select current measurement function.
:SENS:CURR:PROT 10e-3
Set compliance limit to 10mA.
:SENS:CURR:RANG 10e-3
Select the 10mA measurement range.
:OUTP ON
Turn the output on.
:READ?
Trigger and acquire one data string.
*SourceMeter must be addressed to talk after sending :READ? to trigger and acquire data.
Table 1-9
Command sequence for measure current only example
Command*
Comments
*RST
Restore GPIB defaults (one-shot measure mode).
:SOUR:FUNC VOLT
Select voltage source function.
:SOUR:VOLT:MODE FIX
Select fixed voltage source mode.
:SOUR:VOLT:RANG 0.2
Select 200mV source range.
:SOUR:VOLT:LEV 0
Set source output level to 0.000mV.
:SENS:FUNC “CURR”
Select current measurement function.
:SENS:CURR:PROT 100e-3
Set compliance limit to 100mA.
:SENS:CURR:RANG 10e-3
Select the 10mA measurement range.
:OUTP ON
Turn the output on.
:READ?
Trigger and acquire one data string.
*SourceMeter must be addressed to talk after sending :READ? to trigger and acquire data.
