WIKA T24 - Handbuch (Seite 23)

GB
WIKA operating instructions temperature transmitter, model T24 23
2370242.09 08/2013 GB/D
8. Information on mounting and operation in
hazardous areas (Europe)
In hazardous areas, only use temperature transmitters that are
approved for those hazardous areas. The approval is marked on the
product label.
8.1 Model overview of European approvals
Head mounting
version
Ex protection and
Approval No.
Ignition
protection type
T24.10.xx2 II 1G EEx ia IIB/IIC T4/T5/T6
DMT 02 ATEX E 025 X
intrinsically safe
equipment
T24.10.xx9 II 3 G Ex nA IIC T4…T6 energy-limited
equipment
II 3 G Ex nL IIC T4…T6 non-sparking
equipment
II 3 G Ex ic IIC T4…T6 intrinsically safe
equipment
8.2 Specific conditions for safe use
T24.10.xx2: Transmitters in a hazardous area should only be powered
by associated intrinsically safe apparatus that are approved for the
relevant hazardous area. The temperature transmitter must be mounted
in an enclosure that meets a minimum ingress protection of IP 20 per
EN 60529/IEC 529.
T24.10.xx2 for category II 1G/IIC in addition: The surface of
the casing is not conductive. The temperature transmitter must be
mounted in such a way that no electrostatic charging can occur. This is
ensured, for example, by mounting the transmitter into an electrically-
conductive connection head.
8. Information on mounting and operation ...