Siemens SIMATIC RF600 Series System Manual page 434

Transponder
7.14 SIMATIC RF680T
Temperature class delineation for dusts
Ignitions of dust-air mixtures
When using the RF680T transponder, check to make sure that the temperature values are
adhered to in keeping 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 assignment for dusts and a radiated power less than 100 mW ERP
If the radiated power of an antenna radiating into the hazardous area or located in the
hazardous area and operating in the 865 - 868 MHz frequency band cannot exceed the
value 100 mW, the temperature class assignment is as follows:
Ambient temperature range
-25 °C ≤ Ta ≤ +125 ℃
Temperature class assignment for dusts and a radiated power less than 500 mW ERP
If the radiated power of an antenna radiating into the hazardous area or located in the
hazardous area and operating in the 865 - 868 MHz frequency band cannot exceed the
value 500 mW, the temperature class assignment is as follows:
Ambient temperature range
-25 °C ≤ Ta ≤ +108 ℃
Temperature class assignment for dusts and a radiated power less than 1000 mW ERP
If the radiated power of an antenna radiating into the hazardous area or located in the
hazardous area and operating in the 865 - 868 MHz frequency band cannot exceed the
value 1000 mW, the temperature class assignment is as follows:
Ambient temperature range
-25 °C ≤ Ta ≤ +86 ℃
Ambient temperature range for dust and radiated power of 2000 mW ERP
If the radiated power of an antenna radiating into the hazardous area or located in the
hazardous area and operating in the 865 - 868 MHz frequency band cannot exceed the
value 2000 mW, the temperature class assignment is as follows:
Ambient temperature range
-25 °C ≤ Ta ≤ +43 ℃
434
WARNING
Temperature value
T135 °C
Temperature value
T135 °C
Temperature value
T135 °C
Temperature value
T135 °C
System Manual, 11/2018, J31069-D0171-U001-A21-7618
SIMATIC RF600