User's Manual

148
Section 7 Reference Data
RFID System
User's Manual
Section 7
Chemical Resistance
 V680-HS65
 Effect of Surrounding Metals on the Antenna (Reference)
In addition to surface mounting, it is also possible to embed the V680-HS65 in a metal casing to protect
it from being struck by other objects. To prevent malfunctioning, allow a space of at least 100 mm
between the Antenna and the sides of the metal casing. If the space is less than 100 mm, the read/
write distance will be greatly diminished. In addition, the height of metal casing must not exceed that of
the Antenna.
 Mutual Interference between Antennas (Reference)
To prevent malfunctioning due to mutual interference when using more than one Antenna, leave suffi-
cient space between them as shown in the following diagrams.
R22 min.
60mm min.
30mm
min.
Metal casing
100mm
min.
100mm min.
100mm min.
100mm
min.
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 100
mm to metal surfaces.
Metal casing
• Installing the Antennas Facing Each Other
• Installing the Antennas in Parallel
700 mm min.
400 mm min.