Owon XDM1041 - Technical Specifications; Voltage, Current, and Resistance Specs

1.Safety Information
4. Measurement Tutorial
Loading Errors (DC Voltage)
Measurement loading errors occur when the resistance of the DUT(Device-Under-
Test) is an appreciable percentage of the multimeter's input resistance, as shown
below.
HI
LO
Ideal
Meter
R
s
V
s
R
i
V
s
= ideal DUT voltage
R
s
= DUT source resistance
R
i
= multimeter input resistance
Error
For the mV range, input impedance≥ 5 MΩ. For other range, input impedance≥10
MΩ.
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