Omron V680S Series User Manual

Section 8
RF Tag Installation Precautions
V680S-D8KF68
 Influence of Metal at Back Surface of RF Tags
The communications range will decrease if there is metal at the back of the V680S-D8KF68 RF Tag. If
the RF Tag is mounted on metallic material, use a non-metallic spacer (e.g., plastic or resin). The
following graphs show the relationship between the distance from the RF Tag to the metallic surface
and the communications range.
X
Y
Communications
range
Reader/Writer
Metal
Non-metallic material
V680S-HMD64-EIP and V680S-D8KF68 V680S-HMD66-EIP and V680S-D8KF68
Metal
Non-metallic material
Metal on back
Reader/Writer
RF Tag
0
10
20
30
40
50
60
70
80
90
100
50 100 150 (mm)
(%)
Communications range (range with no metal at back surface = 100%)
Distance (x) to the metal plate in back of RF Tag
0
10
20
30
40
50
60
70
80
90
100
100 200 300 (mm)
(%)
Communications range (range with no metal at back surface = 100%)
Distance (x) to the metal plate in back of RF Tag
X
Y
Communications
range
Metal on back
RF Tag

Omron V680S Series Specifications

General

Brand	Omron
Model	V680S Series
Category	Rfid Systems
Language	English