Omron V680-HAM42-DRT User Manual page 109

Effect of Metal behind Tags (Reference)
V680-D1KP66T
Effect of Metal behind Tags (Reference)
The V680-D1KP66T communications distance is reduced if there is any metal material behind the Tag.
If the Tag is to be mounted to metal, then either use a V600-A86 Attachment (sold separately) or insert
a non-metal spacer (such as plastic or resin). The relationship between the distance from the Tag to
the metal surface and the communications distance is shown below.
The Attachment is 10 mm thick, and more than one Attachment can be stacked.
V600-A86 Attachment Installation
M3 countersunk screw
Note: Install so that the mounting holes are aligned.
● V680-HS63 and V680-D1KP66T
(%)
100
90
80
70
60
50
40
30
20
10
0 10 20 30
Distance to metal (x)
ID Tag
Antenna
Y
Communica-
Metal
tions
distance
● V680-HS52 and V680-D1KP66T
● V680-HS65 and V680-D1KP66T
40 50 (mm)
Metal on back
X
(%)
100
90
80
70
60
50
40
30
20
10
0 10 20 30 40
Distance to metal (x)
ID Tag
Antenna
Y
Communica-
tions
distance
X
Metal
(%)
100
90
80
70
60
50
40
30
20
10
0 10 20 30 40
Distance to metal (x)
Antenna
ID Tag
Y
Metal
Communica-
tions
distance
X
Section 6
Appendices
50 (mm)
Metal on back
50 (mm)
Metal on back
RFID System
User's Manual
107