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Hello everyone, today we will learn the basic settings of the oscilloscope before use

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First, connect the oscilloscope probe to the oscilloscope, that is, to its CH1 or CH2 input

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Turn the attenuation ratio adjustment switch to the position of 10

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Of course, there are also some oscilloscopes whose attenuation ratio is fixed and cannot be adjusted

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The next step is to press the auxiliary button to adjust the language

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In the second step, press the CH1 button,

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set the coupling to DC, and turn off the bandwidth limit

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Set the volts/ grid adjustment to coarse,

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and turn off the waveform inversion function

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If you turn it on, this waveform will be reversed,

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so this function is generally not used

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Next, in the third step, press the display setting button,

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set the display type to vector,

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and turn off the waveform hold function

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The format is set to YT format,

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and the contrast is generally set to about 40%

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display format is set to normal

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Step 4, press the trigger setting button to set the trigger type to edge trigger

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Set this trigger channel to CH1

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We can set the slope as rising edge or falling edge according to the measured waveform

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Usually when measuring low-level active signals, we use falling edges,

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such as signals with "#" and signals with pull-up resistors.

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When capturing power-down, use the falling edge

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Use the rising edge to measure the power supply

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There are two trigger modes: automatic and normal,

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and it can also be set as a single trigger mode by pressing the single trigger button

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The bottom coupling is set to DC

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The fifth step, according to the voltage value of the measured waveform,

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set the volts/grid, time base, source, slope,

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trigger level, horizontal position, vertical position, etc.

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For example, for a 5V inductor, we can set it to 2V per grid,

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just two and a half grids can display the waveform

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The time base can generally be set to about 500 microseconds,

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and the current setting is 250 microseconds

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Trigger channel, we choose channel 1

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The slope, which we choose to be the rising edge

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The trigger level is set to 1.8V, which is 1/3 of the measured voltage

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The trigger position is set in the middle of the screen

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The vertical position is also the position in the middle of the screen

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we call it a cross

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After all these are set, we can start to measure the waveform

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The front buttons do not need to be set every time the waveform is measured

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After setting this time, we don't need to set many functions next time,

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such as language, display type, etc.

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The next time you measure other waveforms,

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you only need to adjust the voltage of a few volts per grid, adjust the time base,

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adjust the slope and trigger level, and the others do not need to be adjusted

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Ok, this is the basic setup before using the oscilloscope