User`s manual

Chapter 3 Function
3-14
3
 Shutter Time
The shutter time controls the receiving light intensity of the sensor according
to the amount of reflected light from measurement targets.
If the shutter time is set to AUTO, the light intensity feedback function
automatically controls the light intensity to an optimum level. In the case of fixing
the shutter time, use the light intensity monitor and select a fixed value of
approximately 1000 to 1300.
Setting Function Initial value
AUTO Shutter time automatic setting
1 to 31 Fixed (See the table below.)
● Setting Procedure
1
Display the "Sensing Setting" screen
while the system is in setting mode.
2
Press the [ENTER] key. The
"Sampling Cycle" screen will appear.
3
Press the [DOWN] key once. The
"Shutter Time" screen will be displayed.
4
Press the [ENTER] key. The present
shutter time will be displayed.
5
Press the [UP]/[DOWN] key to make
shutter time changes. (Example:
Changing the shutter time to 31.)
6
Press the [ENTER] key and determine
the shutter time.
The following table shows the relation between the set values for shutter time and
actual shutter apertures.
Set value
Shutter
aperture
Set value
Shutter
aperture
Set value
Shutter
aperture
Set value
Shutter
aperture
AUTO Auto 8 0.24% 16 1.95% 24 15.9%
1 0.04% 9 0.31% 17 2.54% 25 20.7%
2 0.05% 10 0.40% 18 3.30% 26 26.9%
3 0.06% 11 0.53% 19 4.29% 27 35.0%
4 0.08% 12 0.68% 20 5.58% 28 45.5%
5 0.11% 13 0.89% 21 7.25% 29 59.2%
6 0.14% 14 1.16% 22 9.43% 30 76.9%
7 0.18% 15 1.50% 23 12.3% 31 100%