S
pecification
s
54
BCL
3
00
i
\ BCL
3
01
i
Le
u
ze electronic
5.4
Readin
g
field curve
s
/ optical data
5.4.1
Bar code characteri
s
tic
s
Notice!
Please note that the size of the bar code module influences the maximum reading distance
and the width of the reading field. Therefore, when selecting a mounting location and/or the
bar code label, take into account the different reading characteristics of the scanner with var-
ious bar code modules.
Fig
u
re 5.
9
:
The mo
s
t import
a
nt ch
a
r
a
cteri
s
tic
s
of
a
ba
r code
The r
a
nge in which the
ba
r code c
a
n
b
e re
a
d
b
y the BCL
3
00
i
\ BCL
3
01
i
(the
s
o-c
a
lled
re
a
ding field) depend
s
on the q
ua
lity of the printed
ba
r code
a
nd it
s
dimen
s
ion
s
.
Therefore,
ab
ove
a
ll, the mod
u
le of
a
ba
r code i
s
deci
s
ive for the
s
ize of the re
a
ding field.
Notice!
A rule of thumb: The smaller the module of the bar code is, the smaller the maximum reading
distance and reading field width will be.
M
=
Mod
u
le: The n
a
rrowe
s
t line or
s
p
a
ce of
a
ba
r code
in mm.
Z
B
=
Wide ch
a
r
a
cter: Wide
ba
r
s
a
nd g
a
p
s
a
re
a
m
u
ltiple
(r
a
tio) of the mod
u
le.
Mod
u
le x R
a
tio = Z
B
(Norm
a
l R
a
tio 1 : 2.5).
B
Z
=
Q
u
iet zone: The q
u
iet zone
s
ho
u
ld
b
e
a
t le
as
t 10
time
s
the mod
u
le,
bu
t not le
ss
th
a
n 2.5mm.
L
=
Code length: The length of the
ba
r code in mm
incl
u
ding the
s
t
a
rt
a
nd
s
top ch
a
r
a
cter
s
. The q
u
iet
zone i
s
incl
u
ded depending on the code definition.
S
L
=
B
a
r length: Height of the element
s
in mm.
