KELVIN CONNECTIONS VOLTECH AT3600 USER MANUAL
PAGE 5.3.2. VPN 98 - 024 V07 FIXTURES
The ‘common’ lead length is shown as AA’ and BB’ in the diagram below.
The AT series testers provide all the connections required to take advantage of Kelvin
measurements.
A test node may be considered to be a pair of connections consisting of one power
and one sense terminal.
The following diagram indicates how to identify the node terminal function;
POWER terminals are all on the outside of the fixture area.
SENSE terminals are all on the inside of the fixture area.
i
IMPORTANT: Kelvin four terminal connections are generally advised to be
used in all test fixtures; they are essential for transformers whose winding
resistance’s are less then 1Ω.
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