Omron V680S Series User Manual page 250

Section 8
Appendices
 Influence of Inclination
Install the Reader/Writer and RF Tags so that the Reader/Writer and RF Tags are as parallel to each
other as possible.
Communications will be possible even if the Reader/Writer and RF Tags are not parallel to each other;
however, the communications range is affected by the inclination between them as shown in the
following graphs.
 Rates of Change in Communications Range for Inclination of V680S-D8KF68M
V680S-HMD64-ETN and V680S-D8KF68M
V680S-HMD64-ETN and V680S-D8KF68M
V680S-HMD66-ETN and V680S-D8KF68M
V680S-HMD66-ETN and V680S-D8KF68M
Measurement Conditions
 V680S-HMD64-ETN and V680S-D8KF68M
Non-Metallic material
 V680S-HMD66-ETN and V680S-D8KF68M
Metallic material
Non-Metallic material
RFID System
248
User's Manual
0
0%
horizontally
0%
vertically
0%
horizontally
0%
vertically
horizontally
Metallic material
RF Tag
Reader/Writer
horizontally
RF Tag
Reader/Writer
RF Tag inclination
10 20 30 40 50
-1% -1% -3% -5% -9%
-1% -3% -7% -12% -19%
-1% -2% -4% -8% -13%
-1% -4% -8% -13% -22%
 V680S-HMD64-ETN and V680S-D8KF68M
Non-Metallic material
 V680S-HMD66-ETN and V680S-D8KF68M
Metallic material
Non-Metallic material
()
60 70 80 90
-16% -29% --- ---
-30% -52% -56% ---
-24% -50% --- ---
-35% -67% --- ---
vertically
Metallic material
RF Tag
Reader/Writer
vertically
RF Tag
Reader/Writer