Siemens SIMATIC RF300 System Manual page 237

6.7.4 Flush-mounted in metal
The antenna ANT 30 can be flush-mounted in metal. Allow for a possible reduction in the field
data. During installation, maintain the minimum distances (a and b) on/flush with the metal.
Note
Reduction of range if the metal-free space is not maintained
At values lower than a and b, the field data changes significantly, resulting in a reduction in the
limit distance and operating distance. Therefore, during installation, maintain the minimum
distances (a and b) on/flush with the metal.
a
b
Figure 6-31
6.7.5 Minimum clearances
Note
Extension of the data transmission time if distance values are undershot
If the distance values specified in the tables are undershot, it is possible that the inductive fields
will be affected. In this case, the data transmission time can increase unpredictably or a
command is aborted with an error.
For this reason, please observe the values in the tables.
SIMATIC RF300
System Manual, 02/2021, C79000-G8976-C345-09
= 20 mm
= 20 mm
ANT 30 flush-mounted in metal
Antennas
6.7 ANT 30
237