User's Manual

153
RFID System
User's Manual
Section 7 Reference Data
Section 7
Chemical Resistance
 V680-D1KP66T
 Effect of Metal behind Tags (Reference)
The V680-D1KP66T communications distance is reduced if there is any metal material behind the Tag.
If the Tag is to be mounted to metal, then either use a V600-A86 Attachment (sold separately) or insert
a non-metal spacer (such as plastic or resin). The relationship between the distance from the Tag to
the metal surface and the communications distance is shown below.
The Attachment is 10 mm thick, and more than one Attachment can be stacked.
 Mutual Interference with Tag (Reference)
To prevent malfunctioning due to mutual interference when using more than one Tag, leave sufficient
space between them as shown in the following diagram.
M3 countersunk screw
V600-A86 Attachment Installation
Install so that the mounting holes are aligned.
• V680-HS52 &V680-D1KP66T
10 20 30 40 50 (mm)
0
50
70
Distance to metal (x)
60
40
30
20
10
90
(%)
100
80
The communications distance without metal is 100%
ID Tag
Metal on back
Antenna
Communica-
tions
distance
Y
X
Metal
• V680-HS63 &V680-D1KP66T
10 20 30 40 50 (mm)
0
50
70
Distance to metal (x)
60
40
30
20
10
90
(%)
100
80
The communications distance without metal is 100%
• V680-HS65 &V680-D1KP66T
10 20 30 40 50 (mm)
0
50
70
Distance to metal (x)
60
40
30
20
10
90
(%)
100
80
The communications distance without metal is 100%
Antenna
ID Tag
Metal on back
Metal
Y
X
Communica-
tions
distance
Antenna
ID Tag
Metal on back
Metal
Y
X
Communica-
tions
distance
100mm min.
100mm min.