User's Manual

146
Section 7 Reference Data
RFID System
User's Manual
Section 7
Chemical Resistance
 V680-HS52
 Effect of Surrounding Metals on the Antenna (Reference)
When embedding the Antenna in metal, be sure the metal does not extend beyond the tip 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.
60 mm min.
Antenna
15 mm min.
Surrounding metal
(steel)
130 (± 65) mm dia. min.
Antenna
Surrounding metal
(steel)
22 mm dia.
Communications
distance
reduced by 50%
Do not bend the cable into a curve tighter than 22
mm in radius.
If the metal around the Antenna reaches the coil surface, the
communications distance will be reduced significantly com-
pared with mounting to a non-metallic surface.
• Installing the Antennas Facing Each Other
• Installing the Antennas in Parallel
120 mm min.
100 mm min.