Application of LOTO oscilloscope with VI curve tester in circuit board maintenance

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Application of LOTO oscilloscope with VI curve tester in circuit board maintenance [Copy link]

Application of LOTO oscilloscope with VI curve tester in circuit board maintenance

The prices of VI curve testers on the market range from 2,000 yuan to 10,000 yuan. Most of them are inconvenient to carry. Some products can be carried, but the functions are single (for example, they cannot save curves, compare curves, etc.). Then the LOTO oscilloscope and VI curve industrial control board perfectly solve these problems. The price is extremely low (500 yuan in total), you can carry it with you, save curves, record and play back, measure with a mouse, etc....

Required Hardware:

1. The price of LOTO oscilloscope ranges from 330 yuan to 988 yuan.

2. The price of the VI curve tester industrial control board is 118 yuan.

Software required:

LOTO oscilloscope OSCxxx dedicated software.

LOTO oscilloscope and VI curve are combined to form a powerful combination:

1. The oscilloscope is connected to the computer, and the VI is connected to the oscilloscope. It is very simple as shown in the figure.
2. Set the oscilloscope to X_Y mode

3. Turn on the oscilloscope and you will see a horizontal line (if it is a vertical line, it means the AB line of the oscilloscope is plugged in reverse, just reverse it!)

4. When the two test leads are short-circuited, a vertical line can be seen, indicating that the VI curve configuration is complete!

5. If the graphics flicker, adjust the scan time (about 2ms)

6. If the graphic is too small, adjust the AB voltage (0.5v)

Curves of various components (online testing, this is the advantage of VI, no need to remove components):

1. Capacitor (capacitor coil), if it leaks, it is a bevel coil, there is no damaged one on hand...
2. Diode (close to right angle), if damaged, the open circuit is a horizontal line, and the short circuit is a vertical line
3. Transistor curve:

火辣西米秀

LOTO oscilloscope can also do VI curve work