Reference Notes
Figure 12: Measuring differential current and nulls
3. Measure the current. A waveform above the baseline indicates the conductor
with the conventional current flow (I
1
, in the direction of the probe arrow),
is carrying the greater c urrent. Conventional current flows from positive to
negative.
4. To adjust for a current null, adjust the current in one of the conductors until
the displayed measurement is zero.
TCPA300/400 Amplifiers and TCP300A/400 Series Current Probes User Manual 25
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