Siemens Simatic RF300 System Manual page 126

Readers
5.1 SIMATIC RF310R
5.1.6 Metal-free area
The RF310R can be flush-mounted in metal. Allow for a possible reduction in the field data.
Figure 5-1
To avoid any impact on the field data, the distance a should be ≥ 20 mm.
5.1.7 Minimum distance between RF310R readers
RF310R side by side
D ≥ 150 mm (with 2 readers)
D ≥ 200 mm (with more than 2 readers)
Figure 5-2
126
Metal-free area for RF310R
Minimum distance between RF310R readers
System Manual, 07/2017, C79000-G8976-C345-07
SIMATIC RF300