Siemens SIMATIC RF300 System Manual page 85

Reader RF350R with ANT 12 and with MIFARE transponders (MDS E)
Table 4-53
Transponder
MDS E623
Reader RF350R with ANT 18 and with RF300 transponders
Table 4-54
Transponder
RF320T
RF330T
RF340T
Mounting the transponder on or in metal is only possible with the appropriate spacer or if there is
1)
adequate clearance to the metal.
Values of > 100 % can occur if transponders were developed specifically for mounting in/on metallic
2)
surroundings.
SIMATIC RF300
System Manual, 02/2021, C79000-G8976-C345-09
Reduction of field data due to metal, range as %: Transponder and RF350R with ANT 12
Without metal
On metal; distance 0 mm
Flush-mounted in metal;
circumferential distance 0 mm
Reduction of field data due to metal, range as %: Transponder and RF350R with ANT 18
Without metal
1)
On metal; distance 20 mm
Flush-mounted in metal;
circumferential distance 25 mm
Without metal
On metal; distance 0 mm
Flush-mounted in metal;
circumferential distance 10 mm
Flush-mounted in metal;
without surrounding clearance
Without metal
On metal; distance 0 mm
Flush-mounted in metal;
circumferential distance 20 mm
Planning the RF300 system
4.3 Installation guidelines
ANT 12 without metal
100
90
70
ANT 18 without metal
100
85
75
100
120
2)
115
2)
95
100
65
60
ANT 12 mounted
in metal
(0 mm all-round)
80
75
60
ANT 18 mounted
in metal
(10 mm all-round)
65
55
45
85
100
95
90
85
60
55
85