RS PRO RSDM-9060, Руководство пользователя

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Example
Vs = Voltage source
RLoad = Load under test
Rint = Current terminal total impedance
containing Fuse + Rline
Rline + Rline Rline
When different current range for measurement is
selected, Rshunt will vary accordingly.
For example,
Vs = 10V, Rload = 10 Ω, Rint = total impedance
flowing through current terminal 0.5Ω
The theoretical value for current reading should be
= 1A in that the DMM internal
resistor Rint, which contains Shunt, Rline Rline ,
Rline Rline and Fuse, will cause impact on the
measuring reading.
The measured value is I
= = 0.952381 A.
Error (%) = * 100
This error is applicable to not only DC but AC
measurement, and the burden voltage, per varied
current measuring range, is generally within the
range of several hundreds mV.
DC Current
Range Shunt Burden Voltage
100 μA 100 Ω <0.011 V
1 mA 100 Ω <0.11 V
10 mA 1 Ω <0.04 V
100 mA 1 Ω <0.4 V