UNI-T UT-P40 Instruction Manual page 20

9.To measure DC current, set the meter to measure DC
volts. Note the current convention arrow on the probe to
get the proper polarity reading.
10.To increase the measurement sensitivity of the
UT-P40 current probe, loop additional turns of the wire
under test through the jaws. See Figure 4.
The sensitivity of the UT-P40 current probe is multiplied
times the number of loops in the jaws. For example:
50mV/A X5turns=250mV/A
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