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Non-isolated channel oscilloscope test method and precautions

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Post time 2020-4-9 08:49:29 | Show all posts |Read mode
Handling Precautions

The product will share one reference which is typically connected to earth ground through the power cord
with your PC after you connect the product to your PC with the USB cable. The probe ground lead is at
ground potential.

Do not connect the ground lead to an elevated voltage. If you connect the probe as Figer 1, it will break
the product and your PC. If measuring the floating potential, we will recommend the measurement as follows.


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 Author| Post time 2020-4-10 08:16:19 | Show all posts
Edited by WisdomAugust at 2020-4-10 08:19

1. If the product and your circuit share one ground, make sure that connect the ground lead of the probe
to earth ground only. (As Figure 1).
                                                  Figure 1

2. Use an isolated power supply for your PC or your circuit.
3. Use a notebook PC that uses battery power supply only.
4. Use differential motion method using CH1 and CH2. (Figure 2)

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