5-11-3 Measurement using the DC current probe (CL33DC)
Maximum measurable current: DC 300 A
1) Measurement target
Current drain of the electrical circuitry of an automobile or
other DC devices.
2) Measurement ranges
Two (30 A and 300 A).
3) Measurement procedure
Connect the red plug of the current probe to the + measure-
ment terminal and the black plug to the COM (
−
) terminal.
Set the function switch of this instrument (CD732) to “DCV”.
Set the range hold button to the DC 600 mV range.
Set the range setting knob of the current probe to the 30 A or
300 A range and turn the zero adjustment knob so that this
instrument (CD732) displays “000.0 mV”.
Open the iron core of the current probe and clamp the
measurement target conductor with it.
If the range of the current probe is 30 A, read the displayed
value by multiplying it by 0.1. If the range is 300 A, multiply it
by 100. The unit of the obtained value is A (ampere).
After the measurement, open the iron core of the current
probe and disconnect it from the measurement target
conductor.
Set the power switches of this instrument (CD732) and probe
(CL33DC) to OFF.
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Содержание cd732
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