Independent Time Base; Chapter 5 - Mathematical Operation; Mathematical Function - UNI-T UTD2000CEX-II Series User Manual

UTD2000CEX-II
User Manual
Press the button HORI MENU in the control panel. Press F1 to select the
Extended Window . Under the Extended Window mode, the screen is
divided into two display areas as the above picture shows. The upper part
displays the original waveforms, which can move left and right through
rotating the knob horizontal POSITIONAL or can enlarge and reduce the
selected areas through rotating the knob horizontal SCALE. The lower part
displays the horizontal scale waveform. Note that scale time base improves
definition compare with the main time base (as the above picture shows).
Because the waveforms displayed by the whole lower part are corresponding
to the areas selected by upper half part, rotating the knob horizontal SCALE
to reduce the selected areas can improve the scale time base, namely, can
improve the waveforms horizontal SCALE multiple.
Note: The max scale time base is 200ns/div.
4.3 Trigger Release
Trigger release can observe complex waveforms (such as pulse series).
Release time is the time for the oscilloscope to re-enable the trigger. In
the period of release and suppression, the oscilloscope will not be triggered.
For example, a set of pulse series, which is required to trigger on the first
pulse, can set the release time to the pulse width.
Press the HORI MENU button to enter the level control menu. Use the
Multipurpose knob to select trigger release.

Chapter 5 - Mathematical Operation

UTD2000CEX-II series oscilloscope carries a variety of mathematical
operations:
Math: Source 1+ source 2, source 1- source2, source 1* source 2,
source 1/ source2
FFT：Fast Fourier Transform
Digital Filter
Press the MATH button to enter the mathematical operation menu.The
POSITION and the SCALE knobs can be used to change the vertical
position and the vertical profile of the mathematical operations. Under
mathematical operations, the horizontal position cannot be independently
adjusted, it will change automatically according to the analog input channel
signals.

5.1 Mathematical Function

Press MATH button, then press F1 to choose the type (math)
Math Menu
Options
Functions
Type
Math
Source 1 CH1, CH2,
+
-
Operator
*
/
Ch1 CH2 ,
Source 2
Descriptions
Set any one of the Ch1,
CH2 as Math Source 1
Source 1 + Source 2
Source 1 - Source 2
Source 1 * Source 2
Source 1 / Source 2
Set any one of the CH1,
CH 2 as Math Source 2