Chapter 2 CHANGING SYSTEM SETTINGS
2-15
Changing the Trace Form Setting
Before explaining how to change the setting, an explanation is given below about trace
form.
This instrument can acquire data of maximum 60,000 points. However, since the number
of dots on the LCD is limited, it is not possible to display all the acquired data at the same
time. Therefore, the instrument employs methods to display only the selected data. The
following four display methods are available.
• DECIMATION
• MAXIMUM
• MEAN
• ENVELOPE
Before explaining each display method, an explanation is given below about the data
display section of the instrument.
The instrument uses 500 dots (horizontal direction) on the LCD to display the acquired
data.
So, the data quantity per dot can be calculated as follows.
Data quantity per dot = Acquired data quantity / 500
If the data size is 60,000 points, the data quantity assigned per dot will be 120 points.
For the method of changing the data size, refer to page 3-28.
The procedure to choose and display data (120 points) assigned for each dot is shown
below for each display method.
DECIMATION
The data to be displayed on each dot is the first data of those assigned for each dot.
1st dot: Displays the first data.
2nd dot: Displays the 121st data.
y
y
y
499th dot: Displays the 59761st data.
500th dot: Displays the 59881st data.
Refer
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