Note
• If you change GS200 settings while measurements are being performed, those
measurements are invalid. The measured result display shows “-----,” and you cannot store
the results.
• Software processing time is less than 1 ms.
Measurement Delay (See section 7.3 for the procedure)
Measurement delay is the wait time from when a measurement trigger is applied to
when the measurement operation is carried out. You can adjust the timing between
the measurement trigger and the measurement operation by changing this setting. For
example, you can set the time needed for the DUT to stabilize after source change
completion to the measurement trigger, so that measurement is performed when the
DUT has stabilized.
Highly Accurate Measurement and High-Speed Measurement
Depending on the settings, the following measurement conditions enable you to perform
highly accurate measurements or high-speed measurements.
Local Sense and Remote Sense (See section 4.2 for the procedure)
Two wiring systems, 2W (two-terminal connection or local sense) and 4W (four-terminal
connection or remote sense) are available (see page 2-9). When the DUT allows a large
output current to flow, the voltage drops due to wire resistance. 4W is effective in this
kind of situation. In voltage source mode, you can minimize the effect of wire resistance
and measure the voltage that is applied to the DUT. In current source mode, you can
minimize the effect of wire resistance and measure the voltage that the DUT generates.
Integration Time (See section 7.2 for the procedure)
An integrating A/D converter is used for measurements. If you set a long integration time,
the measurement takes longer, but the stability of the measured values increases.
Offset Calibration Feature
Zero Calibration (Manual Zero) Feature (See section 7.7 for the procedure)
If zero calibration is executed from the GS200’s operation menu, output is automatically
turned off, the zero reference is measured, and the zero reference is applied to
subsequent measured results. The zero point may change due to the passage of time,
the GS200 being in an environment where the temperature changes drastically, or due to
other factors. By executing zero calibration, the zero point is calibrated, and this enables
the GS200 to generate more accurate output.
NULL Computation (See section 7.6 for the procedure)
In NULL computation, the GS200 can display a difference from a given measured
value. When you turn NULL computation on, the next measured value is taken to be the
NULL value. For subsequent measured values, the measured results are obtained by
subtracting this NULL value.
Measured result = measured value – NULL
value
2.5 Measurement (Monitoring feature; /MON option)
2-17
IM GS210-01EN
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