2400S-903-01 Rev. E / September 2011
Return to
Section Topics
1-17
Series 2400 SourceMeter® Quick Start Guide
Section 1: Introduction
Settings to optimize performance
Range
To achieve best accuracy, the SourceMeter should be on the lowest possible measurement range.
In most situations, auto range can be used to automatically select the best range. Auto range is
controlled (enabled/disabled) by the AUTO range key (AUTO annunciator indicates auto range is
enabled).
RANGE
arrow
keys are used for manual range selection. Note that pressing either of these keys
disables auto range.
NOTE Basic ranging information (including the SCPI commands for remote
operation) is covered in “Fundamental source-measure operations.”
Table 1-10
Command sequence for auto ohms example
Command*
Comments
*RST
Restore GPIB defaults (one-shot measurement mode).
:SENS:FUNC “RES”
Select ohms measurement function.
:SENS:RES:RANG 200
Select 200
Ω
range.
:SENS:RES:MODE AUTO
Select the auto ohms measurement method.
:SYST:RSEN ON
Select 4-wire sense mode.
: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 1-11
Command sequence for manual ohms example
Command*
Comments
*RST
Restore GPIB defaults (one-shot measurement mode).
:SENS:FUNC “RES”
Select ohms measurement function.
:SENS:RES:MODE MAN
Select the manual ohms measurement method.
:SOUR:FUNC VOLT
Select voltage source function.
:SOUR:VOLT:MODE FIX
Select fixed voltage sourcing mode.
:SOUR:VOLT:RANG 2
Select 2V source range.
:SOUR:VOLT:LEV 2
Set source level to 2V.
:SENS:CURR:PROT 10e-3
Set current compliance to 10mA.
:SENS:CURR:RANG:AUTO
ON
Select auto range for current measurements.
:SYST:RSEN OFF
Select 2-wire sense mode.
: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.
