Panasonic PV500 User Manual page 147

Setting Judgement Limits
Set a tolerance (maximum and minimum values) of the number of detected flaws. If the number of detected
flaw is within the tolerance, the object will be judged as "OK", if it is out of it, the object will be judged as "NG".
1.
Select "Judgement Limits".
2.
Input the setting values for "OK Judge. Max." and "OK Judge. Min".
3.
After inputting is completed, press the CANCEL key.
Running a Test and Confirming Result
Confirm if the current settings perform an inspection properly. To observe the image easily, set "Window
Transparency (SETUP menu)" to larger value. ("Changing Window Transparency (SETUP Menu)", page 341)
1.
Press the TRIG key.
When a live image is displayed on the screen, PV captures a new image first and runs a test. When a
memory image is displayed, it runs a test using the current memory image without capturing any images.
Position adjustment and area size adjustment are also executed at the same time if they are used.
2.
Check data of detected area list.
No.: Flaw number
X: The center X coordinate of the first cell from the
start point in a flaw
Y: The center Y coordinate of the first cell from the
start point of a flaw
Flaw Size:The number of cells making up a flaw
The list of detected areas is displayed in the lower
part of the setting window.
When selecting this table and highlighting each
No., the mark indicating the flaw on the screen
window turns to red.
Checking Gray Level and Differential Value of Cells
You can observe gray level (average) and differential value of each cell.
1.
Press the FUNC key on Flaw Detection setting window.
The pop-up menu appears.
2.
Select "Data Display".
The Data display window appears.
3.
Select "Gray Value" or "Differential". (See A shown
on the right figure.)
4.
Tilt the ENTER key left/right to select the cell to
check its information. (See B on the right figure)
The gray value or differential value of the selected cell
is displayed. (See C on the right figure)
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