Omron V680S Series User Manual page 241

 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-D2KF68
V680S-HMD64-ETN and V680S-D2KF68
V680S-HMD64-ETN and V680S-D2KF68
V680S-HMD66-ETN and V680S-D2KF68
V680S-HMD66-ETN and V680S-D2KF68
 Measurement Conditions
 V680S-HMD64-ETN and V680S-D2KF68
Metallic material
Non-Metallic material
Reader/Writer
 V680S-HMD66-ETN and V680S-D2KF68
Metallic material
Non-Metallic material
Reader/Writer
0 10 20
-0% -1% -2%
horizontally
-0% -1% -3%
vertically
-0% -1% -2%
horizontally
-0% -1% -2%
vertically
 V680S-HMD64-ETN and V680S-D2KF68
horizontally
RF Tag
Non-Metallic material
 V680S-HMD66-ETN and V680S-D2KF68
horizontally
RF Tag
Non-Metallic material
()
RF Tag inclination
30 40 50 60
-3% -6% -9% -14%
-5% -8% -13% -20%
-3% -6% -11% -16%
-5% -8% -13% -20%
Metallic material
Reader/Writer
Metallic material
Reader/Writer
Section 8
Appendices
70 80 90
-21% -33% -59%
-28% -41% -66%
-25% -39% -65%
-29% -42% -68%
vertically
RF Tag
vertically
RF Tag
RFID System
239
User's Manual