Keysight Technologies N6705C, Operating And Service Manual

Page: 129 / 476

From the remote interface:
Use the following SCPI commands to enable seamless measurements:
SENS:CURR:RANG:AUTO ON,(@1)
SENS:VOLT:RANG:AUTO ON,(@1)
N678xA SMU Meter-Only Modes
Models N678xA SMU can measure voltage or current at the output terminals without involving the
source function of the instrument.
Make all measurement connections before selecting the Measure Only functions. This is because
when the Measure Only functions are selected, the instrument goes through an initialization sequence
that minimizes the amount of disturbances imposed on the DUT. The output is also enabled to allow
the meters to measure correctly.
From the front panel:
In the Source Settings window, the Voltage Measure selection emulates a voltmeter. Current priority
mode is set by default. The +/- Voltage Limits are set to their maximum values. The voltage
measurement cannot exceed the voltage ratings of the unit as indicated in the +/- Voltage Limit fields.
Voltage Measure - the Voltage Measure mode works best when the sense terminals are connected to
the output terminals. You can use 4 Wire sensing and connect the sense and output leads directly to
the DUT as shown below, or you can use Local sensing and connect only the output leads to the DUT.
The input impedance in Voltage Measure mode will be somewhere around 2000 pF
depending on the grounding of the DUT. This may draw up to a few microamperes of
current from the nodes that are being measured.
Keysight N6705C Operating and Service Guide 129
4 Using the Measurement Functions