Use Of The Transponder In Hazardous Areas For Dusts; Mounting Instructions - Siemens SIMATIC RF600 System Manual

7.5.3.8

Use of the transponder in hazardous areas for dusts

The equipment is suitable for dusts whose ignition temperatures for a dust layer of 5 mm are
higher than 210 °C (smoldering temperature). With the ignition temperature specified
according to IEC 61241-0 and IEC 61241-11 according to the type of ignition protection iD,
the smoldering temperature of the dust layer is referenced in this case.
Temperature class delineation for dusts
Ambient temperature range
-25 °C < Ta < +85 °C
Ignitions of dust-air mixtures
When using the RF640T transponder, check to ensure that the temperature values are
complied with in connection with the requirements of the application area.
Non-compliance with the permitted temperature ranges while using the transponder can
lead to ignitions of dust-air mixtures.
7.5.4

Mounting instructions

Properties
Type of installation
Tightening torque
SIMATIC RF600
System Manual, 10/2009, J31069-D0171-U001-A8-7618
WARNING
Temperature value
T140 °C
Description
Screw attachment, (M4 screws)
(two grommets DIN 433 and two hexagon M4 socket head cap screws
DIN 6912)
(at room temperature) < 1.2 Nm
Transponder/tags
7.5 SIMATIC RF640T
235