GW Instek GRS-6000A Series - Manual (Page 30)

GRS-6052A/6032A OSCILLOSCOPE
USER MANUAL
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54
PRE-TRIGGER
Measure the waveform before the trigger point.
Although a conventional oscilloscope displays the trigger point only at the left
end of the screen since the sweep starts at the trigger point of the signal, the
instrument can display the trigger point anywhere on the screen in 0.1DIV
steps, using the PRE-TRIGGER function in the STORAGE mode, so that it is
possible to measure the waveform before the trigger point precisely.
1) When the MENU and CURSOR functions are off, the position of the
trigger point is displayed.
2) The position of the trigger point is set by the VARIABLE control knob.
3) For example, in the case of 4.0DIV setting, the signal before the rising
edge of the waveform (the triggered point) can be observed as shown in
Figure 5-18 below.
Figure 5-18
GRS-6052A/6032A OSCILLOSCOPE
USER MANUAL
⎯ ⎯
55
MENU
The acquisition mode, the on-off settings of the waveform smoothing, the
interpolation method in the horizontal magnification mode, the save and recall
memory can be selected by the MENU pushbutton.
Each time when the MENU pushbutton is pressed, the readout displays at the
top right of the CRT in the sequence as follows:
MENU 1: “acquisition mode＂
MENU 2: SMOOTH
MENU 3: INTRPL
MENU 4: SAVE
MENU 5: RECALL
OFF
1) Select acquisition mode
When the “MENU 1: acquisition” mode is displayed at the top right of the
CRT, the selection of acquisition mode can be set.
M E N U 1 : P E A K
Acquisition mode Setting marker by VARIABLE
SMPL: Normal Sampling
PEAK: Peak Detect
PERSIST: Persistence Display
ENVELOPE: Envelope Display
AVERAGE: 2~256 times
The Acquisition mode is selected by the VARIABLE control knob.
Acquisition is the process of sampling for the analog input signal,
converting it into digital format afterward and assembling it into a
waveform record finally.