Sharp IV-S30J User Manual page 82

4. Select item " SIZE", and item "
key. Then, set the size and position of the monitoring window using the direction keys.
- The monitoring window should be placed in a location with medium brightness, which does not
contain any objects to be measured.
- The monitor window is a rectangle 4 to 32 pixels tall and 4 to 64 pixels wide (se in multiples of 4
pixels). The monitor window can be moved one pixel at a time.
- The average light level in the monitoring window is displayed on "MEAS.AVG.GRAYS (average
measured light level) in item
[When monitoring changes in the lighting environment] ... If not, go to item 6.
5. Select item " THRESHOLD VALUE", using the up and down keys, and press the SET key.
- Select the upper and lower limits using the left and right keys, and set the light level range (0 to
255) using the up and down keys. Then, press the SET key.
When the average light level in the monitoring window is out of the preset light level range,
"OVR ILLM. RANGE (light level over range)" will be displayed on the MAIN OPS MENU.
[When the threshold value for binary conversion is automatically modified to take into
account changes in the lighting environment] .... If not, go to item 8.
6. Press the SEL key to enter freeze frame the image.
- "F.IMG (freeze)" will be displayed in the upper right corner of the screen.
- Before reading and storing the next average light level sample, it is necessary to enter the freeze
frame.
7. Select item " REG AVG. GRAY LVL (average light level registration)," using the up and down
keys, and press the SET key twice. When the SET key is pressed again, the "REG. AVG. GRAYS
(average light level)" will be registered.
- This average light level is required when threshold value correction is selected in the binary
conversion method.
- If the average light level has not been registered, you will see "error 22: BIN MON. LIGHT LVL
NOT SET (the light level check function has not been enabled)."
- The registered light level is the reference value used when threshold values are modified.
- If the current screen is not a frozen image, "CHANGE TO FREEZE MODE (change to freeze)"
will be displayed.
8. Move the cursor to the upper function menu by pressing the TRG/BRT key and select the "SAVE"
item using the left and right arrow keys. Then press the SET key.
- A message "SAVE DATA? (YES = [SET], NO = [ESC])" will appear on the screen. Press the SET
key to save the data.
After the measurement monitoring function is turned ON and images have been captured, the
lighting monitoring function set above will be active.
Setting the Conditions for Each Object Type
POSITION", using the up and down keys, and press the SET
."
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