YOKOGAWA DL7440 User Manual

10-30 IM 701450-01E
• Level
You can set the level used to determine whether the status is high or low. The
selectable range is 8 divisions within the screen. The resolution is 0.01 divisions.
• Hysteresis
You can set the hysteresis. The selectable range is 0.3 divisions to 4.0 divisions.
The resolution is 0.1 divisions.
• When the search target waveform exceeds the specified upper limit of hysteresis, it
is determined to be high.
• When the search target waveform is below the specified lower limit of hysteresis, it
is determined to be low.
• The status when the search target waveform is within the specified hysteresis
(including the upper and lower limits of hysteresis), A and B in the figure below) is
determined to be the same status (true) as the determination status (Pattern)
described two sections earlier, and is handled as a level where the search
condition is met.
Upper limit of hysteresis
Lower limit of hysteresis
Low
Low
High
A
B
A, B: Always determined to be true.
Level
Search Start Point
You can set the search start point. The selectable range is ±5 divisions. The resolution
is 10 divisions÷the display record length. For a description of the display record length,
see appendix 1.
Search Conditions of the Pulse Width
The following conditions can be specified.
Determination Type
You can select the type used to determine the relationship between the pulse width of
the search target waveform and the specified determination time.
Pulse<Time Searches the section where the pulse width of the search target waveform is
shorter than the specified determination time.
Pulse>Time Searches the section where the pulse width of the search target waveform is
longer than the specified determination time.
T1<Pulse<T2 Searches the section where the pulse width of the search target waveform is
within than the specified determination time range.
Time Out Searches the section where the pulse width of the search target waveform exceeds
the specified determination time. The displayed position in the zoom display differs
from the Pulse>Time case.
T
T
T1
T2
T
Pulse>TimePulse<Time
T1<Pulse<T2 Time Out
T, T1, T2: Specified determination time : Center position when zooming
: Search start point for the next search
10.4 Searching Waveforms Using the Search and Zoom Function

YOKOGAWA DL7440 Specifications

General

Brand	YOKOGAWA
Model	DL7440
Category	Test Equipment
Language	English