Omron V680-HS63 - Page 175

RFID System
User's Manual
SECTION 7
Reference Data
SECTION 7
Appendices
173
 V680S-D8KF67
 Effect of Metal on Back of RF Tags (Reference)
The V680S-D8KF67 communications range is reduced if there is any metallic material on the back of
the RF Tag.
● V680-HS52 and V680S-D8KF67 ● V680-HS63 and V680S-D8KF67
● V680-HS65 and V680S-D8KF67
Distance to metal (x)
10
20
30
40
50
60
70
80
90
100
(%)
Communications range (Distance without metal is 100%.)
0 20 40 60 80
(mm)
100
Distance to metal
(
x
)
10
20
30
40
50
60
70
80
90
100
(
%
)
Communications range (Distance without metal is 100%.)
0 50 100 150 200 (mm) 250
Antenna
RF Tag
X
Metal on back
Communica-
tions
range
Y
X
Y
Antenna
RF Tag
Metallic
material
Metal on back
Communica-
tions
range
Distance to metal (x)
10
20
30
40
50
60
70
80
90
100
(%)
Communications range (Distance without metal is 100%.)
0 50 100 150 200 (mm)250
X
Y
Antenna
RF Tag
Metallic
material
Metal on back
Communica-
tions
range