6-30 Source-Measure Concepts 2400 Series SourceMeter
®
User’s Manual
Source I measure I and source V measure V
The SourceMeter can measure the function it is sourcing. When sourcing a voltage, you
can measure voltage. Conversely, if you are sourcing current, you can measure the output
current. For these measure source operations, the measure range is the same as the source
range.
This feature is valuable when operating with the source in compliance. When in compli-
ance, the programmed source value is not reached. Thus, measuring the source lets you
measure the actual output voltage. With the use of the TOGGLE key, you can display the
measurement of any two of the three functions (volts, amps, and ohms) concurrently. For
remote operation, you can measure all three functions concurrently. (See Section 17 and
Section 18.)
Source readback accuracy
SourceMeter measurement accuracy is better than sourcing accuracy (see the source and
measure specifications in Appendix A). For that reason, select the same measurement and
source functions, then use the measured value instead of the programmed source value for
optimum accuracy.
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