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Electrometer 4.5 Digit: This Electrometer performs four functions current, resistance, voltage, and charge measurements. It is capable of detecting currents as low as 10 -14 A and resistances up to 2 x 10^11 ohms. It provides more than 5x10^13 ohms input impedance on the voltage ranges and can detect charge over a range of 10^-14 to 2 x 10^-08C. Voltage ranges are 0.2 V to 20 V in 3 ranges with accuracies to 0.08%. Current ranges from 20 pA to 2000 µA in 9 ranges with accuracies from 1.5 to 0.3%. Resistance ranges are from 2 kohms to 200 G-ohms in 9 ranges with accuracies from 0.5 to 2%.
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