Tektronix Keithley 2651A Reference Manual page 90

Model 2651A High Power System SourceMeter® Instrument Reference Manual
Front-panel sense mode selection
To check or change the voltage sense mode from the front panel:
1. Press the CONFIG key.
2. Press the SRC or MEAS key. You can access and set the Model 2651A sense mode from either
the V-SOURCE or the V-MEAS menu items.
3. If you pressed the SRC key: Select V-SOURCE > SENSE-MODE, and then press the ENTER
key or the navigation wheel.
If you pressed the MEAS key: Select V-MEAS > SENSE-MODE, and then press the ENTER key
or the navigation wheel.
4. Select 2-WIRE or 4-WIRE as needed, and then press the ENTER key or the navigation wheel.
Selecting the sense from a remote interface
To select the remote sense from a remote interface:
Set the smua.sense attribute to control the sense state by remote. The programming example below
illustrates how to configure the Model 2651A for 4-wire remote sensing:
smua.sense = smua.SENSE_REMOTE
See Remote source-measure commands
for details.
Output-off states
Carefully consider and configure the appropriate output-off state, source function, and
compliance limits before connecting the Model 2651A to a device that can deliver energy (for
example, other voltage sources, batteries, capacitors, solar cells, or other Model 2651A
instruments). Configure recommended instrument settings before making connections to the
device. Failure to consider the output-off state, source, and compliance limits may result in
damage to the instrument or to the device under test (DUT).
Output-off modes
Turning off the Model 2651A output may not completely isolate the instrument from the external circuit.
You can use the output-off mode to place the Model 2651A in a noninteractive state during idle
periods. The available output-off modes are normal, high-impedance, and zero.
2651A-901-01 Rev. C October 2021
(on page 2-29) and TSP command reference
Section 2: General operation
(on page 7-1)
2-65