Siemens SIMATIC RF610T ATEX - Minimum Distance to Antenna in Accordance with FCC

Safety Information
2.3 Safety distance to transmitter antenna
SIMATIC RF600
22 System Manual, 06/2019, J31069-D0171-U001-A22-7618
NNote
R
Reduced maximum radiated power with RF600 readers
S
IMATIC RF610R and RF615R (ETSI) readers have a maximum transmit power of 400 mW
.
T
he radiated power depends on the antenna cable and the antenna used, but must not
e
xceed 2 W ERP.
T
he SIMATIC RF650R (ETSI) reader has a maximum transmit power of 1 W. The radiated
p
ower therefore depends on the antenna cable and the antenna used, but must not exceed
2
W ERP.
T
he SIMATIC RF680R (ETSI) reader has a maximum transmit power of 2 W. The radiated
p
ower therefore depends on the antenna cable and the antenna used, but must not exceed
2
W ERP.
T
he SIMATIC RF685R (ETSI) reader has a maximum radiated power of 2 W ERP. The
s
afety clearance is therefore at least 0.24 m.
W
hen using Siemens products and with suitable configuration via the WBM, the high limits
c
annot be exceeded.
2
2.3.3 Minimum distance to antenna in accordance with FCC
For the maximum permitted radiated power in accordance with FCC (4 W EIRP), the "safety
distance" is d = 0.26 m. This means that personnel should not remain closer than 26 cm to
the transmitter antenna for extended periods (several hours without interruption). Remaining
within the vicinity of the antenna for brief period, even repeated periods (at a distance < 0.26
m) is harmless to health according to current knowledge.