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Quick Results Guide 7

DUT connections

2-wire sense connections are shown in Figure 6, and 4-wire sense connections are shown

in Figure 7. Use 4-wire remote sensing for the following source-measure conditions:

• The error caused by test lead resistance with 2-wire sensing is not acceptable.

• Optimum ohms, V-source, and/or V-measure accuracy is required.

Center Conductor

Inner Shield

Outer Shield

HI (In/Out or Sense)

GUARD (Cable)

LO (In/Out)

A) Remote PreAmp Triax Connector Configuration

6430 Mainframe

INPUT/OUTPUT

Zener

Clamp

42V Peak DC Max

10.5mA Max

Chassis

Ground

C) Mainframe Input/Output Configuration

Chassis Ground Screw

(on Rear Panel)

Triax to Alligator Clip

HI (center conductor)

Red boot

Guard (inner shield)

LO (outer shell)

Black boot

Green boot

B) Terminal identification for 6430-322-1A cable

Figure 5

Basic input-output configuration

Keithley 6430 Quick Results Guide

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