Non-isolated channel oscilloscope test method and precautions

WisdomAugust · Post time 2020-4-9 08:49:29

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.

WisdomAugust · Post time 2020-4-10 08:16:19

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)