Omron V680-HS63 User Manual page 175

 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
(%)
100
90
80
70
60
50
40
30
20
10
0 20 40
Distance to metal (x)
Antenna
Y
Communica-
tions
range
● V680-HS65 and V680S-D8KF67
(%)
100
90
80
70
60
50
40
30
20
10
0 50 100
Distance to metal (x)
Antenna
Y
Metallic
Communica-
material
tions
range
● V680-HS63 and V680S-D8KF67
100 (mm)
60 80
RF Tag
Metal on back
X
150 200 250 (mm)
RF Tag
Metal on back
X
(%)
100
90
80
70
60
50
40
30
20
10
0 50 100 150 200
Distance to metal (x)
RF Tag
Antenna
Y
Communica-
Metallic
tions
material
range
X
SECTION 7
Appendices
250 (mm)
Metal on back
RFID System
173
User's Manual