User's Manual

102
Section 6 Reference Data
RFID System
User's Manual
Section 6
Appendices
Reference Data
Effect of Surrounding Metals on the Antenna (Reference)
 V680-HS51
When embedding the Antenna in metal, be sure the metal does not extend beyond the
communications section (coil surface) of the Antenna.
 V680-HS52
When embedding the Antenna in metal, be sure the metal does not extend beyond the
communications section (coil surface) of the Antenna.
Surrounding metal
(steel)
Surrounding metal
(steel)
40 mm min.
7 mm min.
R18 min.
Antenna
120 (±60) mm dia. min.
12 mm dia.
Communications
distance reduced
by approx. 50%.
Do not bend the cable into a curve tighter
than 18 mm in radius.
If the metal around the Antenna reaches the coil surface, the
communications distance will be reduced by approx. 50% compared
with mounting to a non-metallic surface.
Antenna
Surrounding metal
(steel)
Surrounding metal
(steel)
60 mm min.
15 mm min.
R22 min.
AntennaAntenna
130 (±65) mm dia. min.
22 mm dia.
Communications
distance reduced
by approx. 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 by approx. 50% compared
with mounting to a non-metallic surface.