Joy-it JT-DMSO2D72, Manual

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Reference Waveform
The REF channel is used to display the reference waveform, which can compare the
actual waveforms with the reference waveforms to find out the differences.
Press Menu button to enter, and select Ref to enter reference Waveform menu.
REF Menu Table:
To save the reference waveform, follow these steps:
Press F1 to select the position of the reference waveform.
Press F2 to open the REF channel.
Press F3 to select the source to CH1 (or CH2), and only select the open channel.
Press F4 to save the current waveform to the specified location.
•
Measurement
Scale measurement
Graticule
:
This method allows you to make a quick, visual estimate and take a simp-
le measurement through the graticule divisions and the scale factor.
For example, you can take simple measurements by counting the major and minor
graticule divisions involved and multiplying by the scale factor. If you counted 6 ma-
jor vertical graticule divisions between the minimum and maximum values of a wave-
form and knew you had a scale factor of 50mV/division, you could easily calculate
your peak - to - peak voltage as follows: 6 divisions x 50mV/division = 300mV.
Cursor measurement
The cursor measurement has two parallel lines on the screen, and move two lines to
measure the time and voltage parameters of the input signal. The result of cursor
measurement will be displayed on the second page of the cursor menu. Before use
cursor measurement, make sure that the measured source is the signal you need to
measure.
Press Menu button to enter, and select Cursor to enter cursor measurement.
Menu Setting Description
Position
Ref
-
A
Ref - B
The REF waveform is saved to the oscilloscope Ref - A or Ref - B.
Enable
On
Off
Open the REF waveform
.
Close the REF waveform
.
Source
CH1
CH2
Select CH1 to save as a REF waveform
.
Select CH2 to save as a REF waveform
Save Save the REF waveform.
Menu Setting Description
Enable
On
Off
Open the
cursor
measurement
.
Close the cursor measurement
.
Type
Voltage
Time
The horizontal line is shown to measure the voltage parame-
ters. The vertical line is shown to measure the time parameters.
Source
CH1
CH2
Select the measured source.
Cursor1
Select Cursor1 and press up, down, left and right keys to move
the Cursor1 position, and display the Cursor1 value.
Cursor2
Select Cursor2 and press up, down, left and right keys to move
the Cursor2 position, and display the Cursor2 value
.
Incre-
ment
The difference between the Cursor1 and the Cursor2.