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User Manual
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1. Vertical Offset Knob: Move the channel waveform up and down on the screen. In dual-window mode, move the waveform
in both windows at the same time in a same direction. Push this knob to return waveform to the vertical center position on the
screen. Two channels correspond to two knobs.
2. VOLTS/DIV Knob: Control the oscilloscope to magnify or attenuate the source signal of the channel waveform. The vertical
size of the display on the screen will change (increase or decrease) to the ground level.
3. Menu (CH1, CH2): Display vertical menu options; turn on or off the display of channel waveform.
Options
Settings
Comments
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 attenuates signals below 10Hz.
Ground disconnects the input signal.
BW 20MHz
OFF
ON
Limits the bandwidth to reduce display noise; filters the signal to eliminate noise and other
unnecessary HF components.
Div
Coarse
Fine
Selects the resolution of the VOLTS/DIV knob.
Coarse defines a 1-2-5 sequence. Fine changes the resolution to small steps between the
Coarse settings.
Probe
1X
10X
100X
1000X
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.
Invert
OFF
ON
The invert function turns the displayed waveform 180 degrees, with respect to the ground level.
When the oscilloscope is triggered on the inverted signal, the trigger is also inverted.
2.6.2. Math Operation
The series of scope supports many math operations between analog channels waveform, including addition (+), subtraction (-),
multiplication (*), division (/) and FFT. You can use cursors to measure it. The contents of this chapter:
➢ Units for Math waveform
➢ Math Operators
➢ To Adjust the Math Waveform Scale and Offset
Note: If the analog channel or the math function display is truncated (waveform do not display on the screen completely), the
resulting math will also be truncated.
Operation
Unit
Addition (+) or subtraction (-)
V
multiplication (*)
V
2
division (/)
None
FFT
dB, VRms
Addition or Subtraction
Math operators perform arithmetic operations - add or subtract operation - on any two analog input channels. When you select
addition or subtraction, the Source A and Source B values are added or subtracted point by point, and the result is displayed.
1. Press the [Math] button on the front panel to enter the MATH function menu.
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