Section 4: Sourcing and measuring Model 2601B-PULSE System SourceMeter Instrument Reference Manual
4-6 2601B-PULSE-901-01A April 2020
When using the SMU current source as a sink, always set the voltage compliance to a level
that is higher than the external voltage level. Failure to do so could result in excessive
current flow into the instrument and incorrect measurements. See Limits (on page 4-2) for
details about compliance limits.
The sink operating limits are shown in Continuous power operating boundaries (on page 7-7).
Setting the sink mode using the front panel
To enable or disable the sink mode from the front panel:
1. Press the CONFIG key and then the SRC key.
2. Select V-SOURCE.
3. Select SINK-MODE.
4. Select ENABLE or DISABLE.
5. Push the ENTER key. Sink mode is enabled or disabled, as applicable.
6. Press the EXIT (LOCAL) key twice to return to the main display.
Setting the sink mode from the remote interface
To enable sink mode from the remote interface, send:
smua.source.sink = smua.ENABLE
To disable sink mode, send:
smua.source.sink = smua.DISABLE
DUT test connections
Hazardous voltages may be present in the test system. To prevent injury or death, remove
power from the instrument or test system and discharge any energy storage components (for
example, capacitors or cables) before changing any connections that might allow contact
with an uninsulated conductor.
SENSE LO and FORCE LO are not internally connected to the chassis. Do not allow them to
float above 0 V. Failure to adhere to these guidelines can result in personal injury or death
due to electric shock.
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