3-14 Basic Source-Measure Operation
Measuring voltage — When sourcing current, you can use the RANGE ▲ and ▼ keys to
manually select the voltage measurement range. You can also press AUTO to select autorang-
ing. When sourcing voltage, the RANGE keys are inoperative.
Measuring current — When sourcing voltage, you can use the RANGE
▲ and ▼ keys to
manually select the current measurement range. You can also press AUTO to select autorang-
ing. When sourcing current, the RANGE keys are inoperative.
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With the 200V V-Source range selected, the highest current measurement range is
10mA. With the 100mA I-Source range selected, the highest voltage measurement
range is 20V.
Measurement range is also limited by the compliance setting. For example, if voltage
compliance is 1V (2V compliance range), the highest voltage measurement range
that can be selected is 2V.
Step 4: Turn output on.
Turn the output on by pressing the ON/OFF OUTPUT key. The OUTPUT indicator will turn
on to indicate the output is on.
Step 5: Observe readings on the display.
The SourceMeter is in compliance if the “Cmpl” label or the units label (i.e. “mA”) for the
displayed compliance setting is flashing. If the “Cmpl” label is flashing, real compliance has
occurred. The output is clamped at the displayed compliance value. If the units label is flashing,
range compliance has occurred. The output is clamped at the maximum compliance value for
the present fixed measurement range. For example, if presently on the 2V measurement range,
a flashing units label for the voltage compliance value indicates that the output is clamped at
2.1V.
The SourceMeter can be taken out of compliance by going into the edit mode and decreas-
ing the source value or increasing the compliance value. Note that increasing the compliance
limit may compromise protection for the DUT. If in range compliance, selecting a higher mea-
surement range may take the SourceMeter out of compliance.
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See Section 5,“Compliance limit” for details on real and range compliance.
Step 6: Turn output off.
When finished, turn the output off by pressing the ON/OFF OUTPUT key. The OUTPUT
indicator light will turn off.
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