System Manual

Table Of Contents
Transponder
7.7 MDS D139
SIMATIC RF200
296 System Manual, 03/2019, J31069-D0227-U001-A11-7619
7.7.3 Metal-free area
Direct mounting of the MDS D139 on metal is not allowed. A distance of 30 mm is
recommended. This can be achieved using spacers (see "Transponder holders
(Page 433)").
Mounting on metal
h
≥ 30 mm
Figure 7-15 Mounting the MDS D139 on metal with spacer
Flush-mounting
It is possible to mount the MDS D139 in metal. With large antennas, for example ANT D5,
this leads to a reduction of ranges.
h
≥ 30 mm
a
≥ 100 mm
Figure 7-16 Flush-mounting of the MDS D139 in metal with spacer