3-38 Keysight E5260/E5270 User’s Guide, Edition 6
Installation
Connecting Measurement Devices
Using Connector Plate
This section provides the information useful for connecting cables and probing
needles to a connector plate.
• “To Reduce Leakage Current”
• “To Measure Low Resistance”
To Reduce Leakage Current
To reduce the leakage current caused by connection cables, the guard technique is
effective. Connect the probing needles to the terminals of the connector plate by
using coaxial cables as shown below:
1. At end of cable, connect coaxial center conductor to force terminal of connector
plate, and connect coaxial outer conductor to guard terminal of connector plate.
2. At another end, connect coaxial center conductor to tail of the probing needle.
Never connect the outer conductor at this cable end.
Extend the outer conductor as close as possible to the probing needle.
Example
The following example connection can be used to reduce the leakage current.
Extend the outer conductor as close as possible to the probing needle. This also
reduces the induced noise.
Probingneedle
Contactpad
Connector plate
Outer conductor
Center conductor
Coaxial cable
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