CHAPTER 5. WAVEFORM DISPLAY FUNCTION
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5.1.2
Vertical calibration
When the crest factor CF is 3, the selected voltage range and current range will be subject to vertical calibration
(voltage/grid, current/grid). When CF is 6, the selected voltage range and current range will be subject to two-time
vertical calibration (voltage/grid, current/grid).
5.1.3
Horizontal calibration
When the “KNOB SEL” soft key is pressed and “T/d” is selected, horizontal calibration (scanning speed) adjusted
by
rotating the knob. In this case, time/grid information changes can be observed on the screen by rotating the knob
and changing the horizontal (time/grid) setting. When acquisition is run, the sampling rate can be changed by
adjusting the horizontal calibration knob. When acquisition is stopped, sampling data can be amplified by adjusting
the horizontal calibration knob.
5.1.4
Trigger delay
When the KNOB SEL soft key is pressed and “TD” is selected, the trigger delay can be adjusted by rotating the knob.
In this case, when the knob is rotated, the trigger point will move horizontally and the delay time will be displayed
on the screen. When the delay time is changed, the trigger point ( ) will move horizontally, and the distance
between the trigger point and the horizontal center will be indicated. The trigger point is displayed along the top of
the display grid.
5.1.5
Trigger waveform
When the specified trigger conditions are satisfied, the trigger waveform will be displayed, and the triggering time
point is called trigger point. The trigger point is generally displayed in the left of the display screen. Following the
trigger point, the waveform is displayed on the display screen from left to right over time. Before using the trigger
function, the user needs to configure the following parameters:
Trigger mode The trigger mode refers to conditions for updating the contents displayed on the screen. Including
the Auto model and Normal mode Auto mode: the displayed waveform is updated in case of triggering in the
pause time and automatically updated in case of no triggering in the pause time. Normal mode: the
displayed content is updated in case of triggering and not updated in case of no triggering.
Trigger source The trigger source is used for generating triggering conditions. The user can select the trigger source
from the input signal of the input unit and the external clock signal.
Trigger slope The slope refers to signal changes from low level to high level (rising edge) or from high level to low
level (descending edge). When used as a triggering condition, the slope is called trigger slope.
Trigger level Level of trigger slope: triggering occurs when the level of the signal of the trigger source reaches the
set trigger level under the specified trigger slope
conditions. When the “KNOB SEL” soft key is pressed and
“TL” is selected, the trigger level can be adjusted by rotating the knob. In this case, the trigger level can be
changed by rotating the knob, and changes in the trigger level can be observed on the screen.
5.2
Adjustment of Measurement Parameters
You can rotate the knob to adjust the vertical calibration, horizontal calibration, trigger delay and trigger level of
the waveform display interface. Detailed steps are as follows:
