Fluke 8062A Instruction Manual page 39

Es = Source Voltage
RI = Load resistance + Source resistance
Im = Measured current (display reading in amps)
Eb = Burden voltage (calculated)
Eb = meas. current [(200/current range in mA) + .35]
Error:
Error in % = 100 x Eb/(Es - Eb)
Error in A = (Eb x Im)/(Es - Eb)
Example:
ES = 15V
RI = 100 k
Im = 148.51 A (.14851 mA)
Eb = 148.51 x 10
Max, error in % = 100 x [148.56 mV/(15V - .14856V)] = 1.0003%
Max. error in A = (148.56 mV x 148.51 A)/(15000 mV - 148.56 mV)
Add 1.486 A to the reading for correct current
Figure 2-11. Calculating Burden Voltage Error
E
S
Ammeter Shunt
-6
-6
= 148.51 x 10 x 1000.35 = 148.56 mV
Add this to the range spec. accuracy
Max. error in % = 1.0003% (.2% + 2 digits)
= 1.486 A
Operation Instructions
I
M
E
B
x [(200/.2) + .35]
2
Operation
RI
dy12f.eps
2-17