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48
3.1.5 12V Start
Use the ATO oscilloscope to test the start of the gasoline car, the purpose is to test whether the performance of the
battery is maintained in the normal range. Use a BNC to banana cable, connect one end to channel 1 of the
oscilloscope, and use two large alligator clips to clamp the positive and negative poles of the battery (the red wire
connects to the red clamp to the positive pole, and the black wire to the black clamp to the negative pole). Use a
current clamp above 600A, connect the BNC of the current clamp to channel 2, 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. Stay, pay attention to the positive and negative polarity (positive current flows from
the positive to the negative of the battery). The specific operation is shown in Figure 3-6:
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