Omron V680-HAM91 User Manual page 161

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 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 distance will be shortened. The relation between the angle and the communications
distance is shown below.
Reduction in Communications Distance for V680-D2KF67 Angle
V680-HS52 and V680-D8KF67
V680-HS63 and V680-D8KF67
V680-HS65 and V680-D8KF67
Measurement Conditions
V680-HS52 and V680-D8KF67
RF Tag
Antenna
V680-HS65 and V680-D8KF67
Metallic
material
RF Tag
Antenna
200 mm min.
0 10
0% -1%
−1%
0%
−1%
0%
θ
θ
200 mm min.
RF Tag angle (θ°)
20 30
−1%
-1%
−1% −2%
−2% −5%
V680-HS63 and V680-D8KF67
Non-metallic
material
Antenna
Section 7
Appendices
40
−1%
−4%
−9%
θ
RF Tag
RFID System
159
User's Manual