Model 6517B Electrometer Reference Manual Section 5: Measurement options
6517B-901-01 Rev. C / August 2015 5-3
Independent source
When used as an independent source, voltage is available at the V-SOURCE HI and LO terminals on
the rear panel (see the figure below). In this configuration, the V-source functions as a stand-alone
voltage source. The V-source is isolated (>1 G) from the measurement circuits of the Model 6517B
when V-source LO is not internally connected to ammeter LO (refer to Ammeter LO to V-source LO
connection (on page 5-4) for more information).
Figure 53: V-source (independent configuration)
Figure 54: V-source (independent configuration) - equivalent circuit
FVMI source
When used to force voltage measure current (FVMI), V-source LO is connected to ammeter LO as
shown in the figure below. Notice that the V-SOURCE HI and INPUT HI terminals are used for this
configuration. The V-source LO to ammeter LO connection can be controlled from the METER
CONNECT option of the CONFigure V-SOURCE menu (refer to Ammeter LO to V-source LO
connection (on page 5-4) for more information).
Figure 55: V-source (FVMI configuration)
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