User`s manual

42
Component
Setting & Test
DUT #1: The
measurement is only of
the device-under-test.
This is the ideal, but in
real-world situations it
may be nearly impossible.
DUT #2: The measurement
includes part of the fixture.
Warning! If a lot of the fixture is
between a kelvin point and the
device-under-test, the 4-Wire
Test will be considerably
compromised.
DUT #3: The measurement
tests only part of the device-
under-test. For example, by
using probe pins, you can
eliminate the resistance of a
connector from the
measurement.
4-Wire Learning
Learning a Fixture & Cable to Create a 4-Wire Test
The 1100H automatically detects 4-wire pairs in the fixture, then learns the interconnections of
the device under test to create the net list and the 4-wire components.
Note: During fixture learning, the first-scanned point of each 4-wire pair goes to the net list.
Scanning is in the same counting order as an AHED adapter.
To enable fixture learning:
• Install the adapters you intend to use for your 4-wire measurement.
• From the Main Menu, select Set Up Test Program.
• Select Create New Test.
• Select Set Learn Settings.
• Select Set Learn Components.
• Select the DOWN button.
• Turn on the 4W Kelvin setting.
You are now ready to learn the fixturing.
Learning the Fixture
Select the BACK button until LEARN is
available.
Attach only the fixture.
In Learn 4W Fixture, select CONTINUE.
Attach the sample cable assembly to the
fixture just learned.
In Learn 4W, select CONTINUE.
The 4 Wire assembly is now ready to test.