Omron V780 Series User Manual page 120

6 Functions
 Transmission Power Adjustment Failure
If the communications status changes as shown below during transmission power adjustment,
adjustment has failed. Correct the installation environment and perform the adjustment again.
a) Communications Success Rate or Reception Level Is Below the Threshold
b) Communications Success Rate or Reception Level Exceeds the Threshold Then Goes Below It
One or More Times
6 - 44
The communications success rate does
not exceed 90% or no margin is
achieved in the transmission power.
Insufficient power to send
The communications success rate
exceeds 90% and then drops below
90% after that.
The transmission power exceeds the
threshold and then falls below it after
that.
UHF RFID System V780-series Reader/Writer User's Manual (Z389)