Series 2600 System SourceMeters Reference Manual
Source-Measure Concepts 8-27
Return to
2600S-901-01 Rev. A / May 2006
Figure 8-13
Measure only configuration
V-Meter
I-Source
(0.00000
m
A)
A. Measure Voltage Only
IN/OUT HI
IN/OUT
LO
±
DUT (V-Source)
I-Meter
V-Source
(000.000mV)
B. Measure Current Only
IN/OUT HI
IN/OUT
LO
DUT (I-Source)
Positive
Current
Note:
Positive current flowing out of
IN/OUT HI results in positive (+)
measurements.
Note: Use 2-wire local sensing.
s
Contact check
When a contact check measurement is being performed, two small current
sources are switched in between the HI and SENSE HI terminals; and the LO and
SENSE LO terminals. By controlling the switches illustrated in
current from these sources flows through the test leads and through the contact
resistance as show. To accurately measure the resulting contact resistance, the
differential amplifier outputs are measured once with the current sources
connected, and again with the current sources disconnected. This allows for
compensation of various offset voltages that can occur.
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