8.13.5.2
Use in hazardous areas for dusts
As intrinsically safe equipment, the transponder is suitable for complete dust covering. In this
case, the ignition temperature specified here according to EN IEC 60079-0:2018 in accordance
with ignition protection type ia refers to the maximum surface temperature of the transponder
for flammable lint (ia IIIA) and non-conductive dusts (ia IIIB). The surface temperatures of the
transponder can be taken from the following table depending on the ambient temperature
range.
WARNING
Ignitions of dust-air mixtures
The transponder may only be operated in the ambient temperature range specified for it (see
EC type examination certificate TÜV 18 ATEX 232450 X).
For applications at locations with an explosive dust atmosphere, the transponder must be
protected from electrostatic charges (see EC type examination certificate TÜV 18 ATEX 232450
X).
When using the transponder, check to ensure that the temperature values are complied with
in connection with the requirements of the area of application.
Non-compliance with the permitted temperature ranges while using the transponder can lead
to ignitions of dust-air mixtures.
Temperature class grading for dusts and radiated power for 2 W and 5 A/m
If the radiated power of an antenna radiating into the hazardous area or located in the hazardous
area and operating in the 13.56 MHz frequency band cannot exceed the value 2 W or 5 A/m, the
temperature class grading is as follows:
Table 8-38
Temperature class grading for dusts
Ambient temperature range
Temperature class
-25 °C ≤ T
a
≤ +125 °C
T185 °C
-25 °C ≤ T
a
≤ +75 °C
T135 °C
-25 °C ≤ T
a
≤ +40 °C
T100 °C
8.13.6
Technical specifications
Table 8-39
Technical specifications of MDS D339
6GT2600-3AA10
Product type designation
SIMATIC MDS D339
Memory
Memory configuration
• UID
• 8 bytes
ISO transponder
8.13 MDS D339
SIMATIC RF300
System Manual, 02/2021, C79000-G8976-C345-09
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