Getting Started
370B User Manual 1-7
Kelvin sense
The 370B provides the adapter connector equipped with Kelvin sense terminals.
The Kelvin sense is the way to measure voltage with two independent terminals
connecting to each of DUT leads; the Force terminal that supplies power and the
Sense terminal senses the voltage. By using the Kelvin sense mechanism, you
can make a high precision measurement because the effect of conductance from
Sense terminals in the 370B adapter connector and the A1001 through A1005
test adaptors are for Kelvin sensing. The measurement can be performed without
Sense terminals, however, if you need high precision measurement, use the those
terminals.
When a DUT does not fit in any of the test adapters and you prepare a specific
test adapter, for example,use cables to connect terminals and DUT leads as
shown in figure 1–1 for Kelvin sensing.
Confirm that the DUT leads and the force terminals: C, B and E are
firmly connected. Making improper connections may cause the DUT to be
broken. Before a measurement, also verify that the cables are not down and the
contact between the terminals and cables are made properly. To avoid electric
shock and damage to he instrument, perform measurement only within the
protective cover . Do not disable the interlock mechanism and/or do not take the
cables out of the protective cover to perform measurement without or outside the
cover.
Figure 1-1: Example of Kelvin sense connection
Connections for Kelvin
Sensing
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General