Omron V680 Series User Manual page 138

Section 7
Appendices
Mutual Interference with ID Tags (Reference)
To prevent malfunctioning due to mutual interference when using more than one ID Tag, leave
sufficient space between them as shown in the following diagram.
Influence of ID Tag Angle (Reference)
Install Antennas and ID Tags as close to parallel to each other as possible.
Communications are possible even when an Antenna and an ID 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-D2KF67
V680-HS63 and V680-D2KF67
V680-HS65 and V680-D2KF67
Measurement Conditions
V680-HS52 and V680-D2KF67
Antenna
V680-HS65 and V680-D2KF67
Metallic
material
RFID System
136
User's Manual
200 mm min.
0%
0%
0%
θ
ID Tag
θ
ID Tag
Antenna
200 mm min.
ID Tag angle (θ°)
0 10
0%
−1%
−1%
V680-HS63 and V680-D2KF67
Non-metallic
material
20 30
−1%
0%
−2% −3%
−3% −7%
θ
ID Tag
Antenna
40
−2%
−6%
−11%