92
Appe
ndix
Line Spee
d and Rea
d
in
g Time
/Ex
pos
ure Time
V400-F050/250/350
User’s Manual
Appendix
If the exposure time does not meet the following, the image will be blurred causing adverse effects
on reading.
If you want to set the exposure time, hold down the left button for more than two
seconds to change the current one or set it in the setting mode.
p.22, p.32
Reading Time
The reading time can be calculated using the formula below.
If the reading time does not meet this formula, the code will be outside the field of vision
so the code cannot be read even if the requirement of exposure time is satisfied.
Example: When the line speed is 60 mm/s and code pitch is 30 mm
The above calculation indicates that the code cannot be read unless the
reading time is 500 ms or shorter.
If the reading time is 500 ms or longer, the line speed must be decreased or
the code pitch increased.
T
0.1 C
(MV)
=
W
V
(Reading time: R)
(Code pitch: L)
(Max. line speed: V)
R
30
60
= 0.5 s = 500 ms
Summary of Contents for 2D CODE READER
Page 1: ...USER S MANUAL 2D Code Reader V400 F050 250 350 Cat No Z242 E1 03...
Page 13: ...12 Introduction Contents V400 F050 250 350 User s Manual Introduction MEMO...
Page 85: ...84 Section 6 Troubleshooting V400 F050 250 350 User s Manual Section 6 Troubleshooting MEMO...
