Chapter 3 Automotive Test
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3.1.7 Cranking Current
Use an SATO oscilloscope with a current probe to conduct a current test on the starting process of the car
(automobile or diesel car), observe whether the current waveform is normal, use a current clamp of 600A or above,
and connect the BNC of the current clamp to channel 2. On, turn on the switch of the current clamp and clamp the
current clamp to the positive or negative power line of the battery. You need to clamp the entire positive or negative
line. Pay attention to the positive and negative polarity (positive current flows from the positive electrode of the
battery to the negative electrode).
The specific operation is shown in Figure 3-9:
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