8-28 Source-Measure Concepts Series 2600 System SourceMeters Reference Manual
2600S-901-01 Rev. A / May 2006 Return to Section 8 topics
Figure 8-14
Contact check circuit configuration
Remote
SENSE HI
IN/OUT HI
Remote
I-Meter
IN/OUT LO
V-Meter
Sense Output
Adjust V-Source
(Feedback)
SENSE LO
Local
Local
x1
GUARD
+

V-Source
1
2
1
2
NOTES:
1. This represents a protection circuit that is very
high impedance until the voltage across it exceeds
approximately 3V. Above 3V, the protection turns
on and allows current to flow through it.
2. Approximately 13kW.
3. High impedance differential amplifier.
3
3
300mA
Current Source
Contact
Resistance(s)
300mA
Current Source
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