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Model 2461

Interactive SourceMeter® Instrument Reference Manual Section 2:

General operation

2461-901-01 A/November 2015 2-117

Contact check measurement connections

The contact check function can be used to verify satisfactory contact resistance to the device under

test (DUT) at both the front and rear panels of the Model 2461. Contact check can be run with the

instrument in either 2-wire or 4-wire mode. If you run contact check in 2-wire mode, make sure to

change the source-measure unit (SMU) to 4-wire (remote sense) mode before measuring to ensure

that your measurements are made correctly.

The high, low, and guard source-sense pairs are tested when contact check is enabled. To get the

result of the contact check operation for each of these connections, use the smu.contact.checkall()

(on page 8-103) or :SYSTem:CCHeck:ALL? command. The following figure shows contact check

connections to a DUT.

Figure 76: Rear-panel contact check measurement connections

Enabling or disabling contact check

Before sending any contact check status commands, you must enable the contact check function.

To enable contact check using SCPI commands:

:SYSTem:CCHeck:STATe ON

To enable contact check using TSP commands:

smu.contact.enable = smu.ON

To disable contact check using SCPI commands:

:SYSTem:CCHeck:STATe OFF

To disable contact check using TSP commands:

smu.contact.enable = smu.OFF

Keithley 2461 Reference Manual

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