14
Q & A
0. I am a beginner, how do I reset the device to its initial state?
Answer: Open Menu->Set, and then long press the "RunStop" button to reset.
1. What is the difference between probe 1X and 10X?
Answer: The 1X does not attenuate the signal, and the 10X attenuates the signal
amplitude by 10 times. When the measuring voltage is higher than 40V, 10X is used.
In addition, the bandwidth of 1X file can only reach about 5M. So generally we
usually use 10X, and use 1X when the measured signal amplitude is less than a few
hundred millivolts. Note: If the probe test lead is set to 10X, it must be set to 10X in
the menu. 1X is the same. That is to keep the two consistent! !
2.When the timeBase is >50ms, the waveform refresh becomes slower?
Answer: The time base of 50ms means the time of "one grid". There are 12 grids in
the horizontal direction. The time to perform one sampling=50*12=600ms, so it is
normal for the waveform refresh to be slow.
3.How to measure DC power voltage?
Answer: First, set the coupling to "DC", and adjust the probe to the 10X position
(the oscilloscope menu should also be set to the same 10X as the probe). Connect the
probe to the power output terminal, and then click the [Auto] key. Pay attention to the
"Mean" value.
4.How to measure 220V mains?
Answer: First remove the USB cable (isolation), then adjust the probe to the 10X
position, adjust the vertical sensitivity to 100V, and adjust the time base to 10ms, and
then connect the probe to the neutral wire and the live wire (be careful!).
6.How to measure main board communication signal or bus signal?
Answer: The probe is connected to the signal first. The coupling mode is set to DC,
the probe is set to the X10 position (the menu should also be set to 10X), and then
click the [Auto] button. If the correct waveform cannot be obtained, please manually
click the [s]/[ns] button to adjust the time base.
7.How to measure power supply ripple?
Answer: Set the coupling mode to "AC" in the menu, and set the probe to the 1X
position (the menu is also set to 1X). Adjust the time base to about 20us. First adjust
the vertical sensitivity to 10mV. If the waveform exceeds the screen, click the [V] key
to reduce it until all the ripples appear on the screen.
To Previous Page
Loading...
