Omron V680-D2KF67, Руководство пользователя, Страница: 37 / 45

35
RFID System
User's Manual
Sec
tion 4
Mount
ing Amp
lif
ie
rs
Section 4
Installation
Effect of Surrounding Metals on the Antenna (Reference)
„ V680-HS63
In addition to surface mounting, it is also possible to embed the V680-HS63 in a metal casing 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 metal casing. If the space is less than 30 mm, the read/write
distance will be greatly diminished. In addition, the height of metal casing must not exceed that of the
Antenna.
„ V680-HS52
When embedding the Antenna in metal, be sure the metal does not extend beyond the tip of the
Antenna.
R22 min.
60 mm min.
23 mm
max.
Metal casing
Metal casing
30 mm
min.
30 mm min.
30 mm min.
30 mm
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 30
mm to metal surfaces.
130 (
±
65) mm dia. min.
22 mm dia.
R22 min.
15 mm min.
Surrounding metal
(steel)
Communications
distance
reduced by 50%.
Antenna
60 min.
Surrounding metal
(steel)
Antenna
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 approximately
50% compared with mounting to a non-metallic surface.