Joy-it JT-DMSO2D72, Manual

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Vertical System
Vertical system can be used to adjust the vertical scale and location and other set-
tings of the channel. Each channel has a separate vertical menu, and each channel
can be set separately.
1.Vertical Position
Press Channel - >F1 to select the channel, and press Up or Down direction keys to
move the vertical position of the selected channel.
2. VOLTS/DIV Settings
The range of Volt/div is 10mV/div - 10V/div (1X), or 100mV/div - 100V/div (10X), 1V/div -
1000V/div (100X), step by 1 - 2 - 5. Press Channel - >F1 to select the channel, and press
Right or Left direction keys to change the Volt/div of the selected channel.
3. Channel Setting Menu
• Trigger System
The trigger determines when the oscilloscope begins to acquire data and display a
waveform. Once a trigger is properly set up, the oscilloscope can convert unstable
displays or blank screens to meaningful waveforms.
The triggering mode of this series oscilloscope is edge trigger.
Edge trigger distinguishes the trigger points by seeking the specified edge (rising,
falling, rising & falling) and trigger level.
Press Trig button to enter trigger menu.
Trigger Source: Select the trigger source signal to CH1 or CH2. You can use the trig-
ger source options to select the signal that the oscilloscope uses as a trigger.
Options Settings Comments
On/Off
On
Off
Turn on the waveform display
.
Turn off the waveform display
.
Coupling
DC
AC
GND
DC passes both DC and AC components of the input signal.
AC blocks the DC component of the input signal and attenu-
ates signals below 10Hz.
GND disconnects the input signal.
Probe
1X
10X
100X
Selects a value according to the probe attenuation factor so
as to ensure correct vertical readouts.
Reduce bandwidth to 6MHz when using a 1X probe.
BW
Limit
On
Off
Limits the bandwidth to reduce display noise; filters the
signal to eliminate noise and other unnecessary HF compo-
nents.
Invert
On
Off
The invert function turns the displayed waveform 180 de-
grees, with respect to the ground level. When the oscillo-
scope is triggered on the inverted signal, the trigger is also
inverted.