Omron V680-HS63 User Manual page 176

SECTION 7
Appendices
 Mutual Interference with RF Tags (Reference)
To prevent malfunctioning due to mutual interference when using more than one RF Tag, leave
sufficient space between them as shown in the following diagram.
 Influence of RF Tag Angle (Reference)
Install Antennas and RF Tags as close to parallel to each other as possible.
Communications are possible even when an Antenna and an RF Tag are mounted at an angle, but the
communications range will be shortened. The relation between the angle and the communications
range is shown below.
Reduction in Communications Range for V680S-D8KF67 Angle
V680-HS52 and V680S-D8KF67
V680-HS63 and V680S-D8KF67
V680-HS65 and V680S-D8KF67
Measurement Conditions
 V680-HS52 and V680S-D8KF67
Antenna
 V680-HS65 and V680S-D8KF67
Metallic
material
RFID System
174
User's Manual
100 mm min.
0
0%
0%
0%
θ
RF Tag
θ
RF Tag
Antenna
100 mm min.
RF Tag angle ()
10 20 30 40
-1% -2% -3% -5%
-1% -2% -4% -7%
-1% -2% -4% -7%
 V680-HS63 and V680S-D8KF67
Non-metallic
material
50 60 70 80
-9% -15% -24% ---
-12% -18% --- ---
-12% -19% -29% -45%
θ
RF Tag
Antenna
90
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