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Connecting a DUT
same potential as the High force, so that the current does not flow between the
core and the inner shield. Therefore ideally, the current measured by the
instrument is the same as the current at the DUT terminal because there is no
leakage current. For several connection examples such as the floating
measurement, refer to the configuration guide.
Figure 1-4
If the Low force terminal connects to the outer shield of the triaxial cable in the
grounded measurement, the outer shield must be electrically isolated from the
shield of your test fixture or shielding box. Do not connect the outer shield to
anything other than the low terminal of DUT.
Never connect the guard shield to any output, including the frame/chassis
ground or any other guard terminal. Doing so will damage the M9614A/M9615A.
28
Guard Technique for Grounded Measurement
M9614A/M9615A
x1
A
Short bar
D-sub connector
Custom cable
Insulator
High force
Guard
Low force
Keysight M9614A/M9615A Startup Guide, Edition 1
Guard shield
DUT
Shield (chassis)
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