Omron V680 Series User Manual page 124

Section 7
Appendices
V680-HS63
Effect of Surrounding Metals on the Antenna (Reference)
In addition to surface mounting, it is also possible to embed the V680-HS63 in a metallic material to
protect it from being struck by other objects. To prevent malfunctioning, allow a space of at least 30 mm
between the Antenna and the sides of the metallic material. If the space is less than 30 mm, the read/
write distance will be greatly diminished. In addition, the height of metallic material must not exceed
that of the Antenna.
23 mm
max.
Note 1: Do not bend the cable into a curve tighter than 22 mm in radius.
2: The communications distance will be reduced significantly if the Antenna is installed closer
than 30 mm to metal surfaces.
Mutual Interference between Antennas (Reference)
To prevent malfunctioning due to mutual interference when using more than one Antenna, leave
sufficient space between them as shown in the following diagrams.
• Installing the Antennas Facing Each Other
RFID System
122
User's Manual
R22 min.
Metallic material
60 mm min.
430 mm min.
30 mm min.
30 mm
min.
30 mm min.
30 mm min.
• Installing the Antennas in Parallel
270 mm min.