Keithley 6430 Instruction Manual page 127

Figure 5-9
Mainframe
Source I
I-Source
_
Guard
x1
+
Local
I-Meter
Remote
V-Meter
Remote
Local
Source-Measure Concepts
GUARD SENSE
V,Ω Guard
Cable Guard
IN/OUT HIGH
HI (Input/Output)
A Guard (Cable)
LO (Input/Output)
SENSE
Preamp
HI (Sense)
REMOTE
Guard (Cable)
PreAmp
LO (Input/Output)
4-WIRE SENSE LO
INPUT/OUTPUT LO
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