Omron V680 Series User Manual page 135

Section 7
Appendices
V680-D2KF52M
Differences in Surrounding Metals
Communications distances are affected by the type of metal in back of or surrounding the ID Tag, as
shown in the following table.
Steel SUS Brass Aluminum
V680-D2KF52M 100% 80% to 85% 80% to 85% 75% to 80%
Note: The value for steel around or behind the ID Tag is set to 100%.
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.
25 mm min.
25 mm min.
RFID System
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User's Manual