Siemens SIMATIC Ident System Manual page 48

RF200 system planning
4.3 Installation guidelines
Flush-mounting
Flush-mounting of transponders and readers
48
Problem
Flush-mounting of transponders and
readers is possible in principle.
However, the size of the transmis-
sion window is significantly reduced.
The following measures can be
used to counteract the reduction of
the window:
Remedy:
Enlargement of the non-metallic
spacer below the transponder
and/or reader.
The transponder and/or reader are
10 to 20 mm higher than the metal
surround.
(The value x ≥ 100 mm is valid, for
example, for RF260R. It indicates
that, for a distance x ≥ 100 mm, the
reader can no longer be significantly
affected by metal.)
Remedy:
Increase the non-metallic distance
a, b.
The following rule of thumb can be
used:
Increase a, b by a factor of 2 to 3
•
over the values specified for
metal-free areas
Increasing a, b has a greater
•
effect for readers or transpond-
ers with a large limit distance
than for readers or transponders
with a small limit distance.
System Manual, 07/2015, J31069-D0227-U001-A9-7618
SIMATIC RF200