Iwatsu SS-500 Series Instruction Manual page 60

Measuring Currents
6
Convert a voltage sensitivity of the waveform
measuring instrument into a current sensitivity.
Using the following formula can convert a voltage sensitivity
(unit: V/div) specified on the waveform measuring instrument
into a current sensitivity (unit: A/div).
S
Example
When your waveform measuring instrument with its voltage
sensitivity set at 10 mV/div measures a current that has an
RMS value of 1 mA
0.5 A range (10 V/A)
S = (10 ×10
I
= 1 × 10
54
= S / R
I V O
: Current sensitivity (A/div)
S
I
: Voltage sensitivity (V/div)
S
V
: Output sensitivity (V/A)
R
O
-3
) / 10
-3
(A/div)
5 A range (1 V/A)
-3
S = (10 × 10
I
-3
= 10 ×10
) / 1
(A/div)