Hioki DSM-8104, Инструкция по эксплуатации

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3
2 Specification
2.1 Measurement Performance
2.1.1
DC current measurement
Current Measurement
Measuring
Range
Maximum
Indication
Resolution Accuracy
10 pA
100 pA
1 nA
10 nA
100 nA
1 µA
10 µA
100 µA
9.9999 pA
99.999 pA
999.99 pA
9.9999 nA
99.999 nA
999.99 nA
9.9999 µA
99.999 µA 0.1 fA
1.0 fA
10 fA
100 fA
1 pA
10 pA
100 pA
1 nA
± (3.0% of rdg + 1.2% of range)
± (1.5% of rdg + 0.6% of range)
± (0.6% of rdg + 0.6% of range)
± (0.4% of rdg + 0.5% of range)
± (0.4% of rdg + 0.5% of range)
± (0.4% of rdg + 0.5% of range)
± (0.4% of rdg + 0.5% of range)
± (0.4% of rdg + 0.5% of range)
1) Measuring time 300ms
2) Temperature range 23 ±5°C, humidity 85% RH or less
3) Mode Self-calibration automatically executed at 1 minute interval
4) Averaging process On
[Remarks]
The resistance measurement accuracy greatly affects the accuracies of voltage
impressed and of current measured. The DSM-8104 specifies only the current accuracy
as a specification. The resistance accuracy is calculated by the following formula
assuming current measurement is a full-scale value. Normally, measured currents are
lower than currents on a full scale and “resistance accuracy > current accuracy” is a
normal value. Refer to 5.1.5 “Setting measuring range.
Resistance accuracy = Current accuracy + Voltage accuracy Accuracy
(Resistance on full-scale current) (On full-scale current)