WIKA T32.xS - Handbuch (Seite 39)

GB
11258421.10 08/2014 GB/D
WIKA operating instructions model T32.xS 39
T32.xS.0IC, T32.xS.0IC-x (providing IS level of protection Ex ic *)
Installation in EPL Gc (Zone 2):
■ The transmitter models T32.1S.0IC, T32.1S.0IC-x shall be
mounted inside a housing located in EPL Gc (Zone 2) area,
providing as a minimum degree of protection IP 20 according to
IEC 60529.
■ The transmitter models T32.3S.0IC, T32.3S.0IC-x shall be
mounted inside a housing located in EPL Gc (Zone 2) area,
providing as a minimum degree of protection IP 20 according to
IEC 60529 and wherein electrostatic charge effects are excluded.
■ Wiring inside the housing shall comply with clause 6.3.12 and
clause 7.6.e of IEC 60079-11:2011.
■ Terminals or connectors for the intrinsically safe circuits shall be
arranged according to clause 6.2.1 or 6.2.2 of IEC 60079-11:2011
respectively.
Installation in EPL Dc (Zone 22) area:
Level of protection “ic” not permitted for EPL Dc application.
■ Transmitter models T32.xS.0IS-x:
Transmitters with “ia” marking may also be used in supply circuits
of type “ib” with the same connection parameters. Thereby, the
whole measuring circuit (including the sensor circuit) is an “ib”
circuit. Transmitters were operated with supply circuits of type “ib”
may not be re-used with supply circuits of type “ia”.
■ The external wiring shall be suitable for the ambient temperature
range of the end use application. The maximum ambient
temperature for T32 of 85 °C shall be considered. The minimum
cross section for external wiring is 0.14 mm².
■ Ex nA applications:
The temperature transmitters model T32.xS.0NI shall be installed
in a pollution degree 2 environment or better in the end use
application for use with an IP 54 minimum enclosure provided by
end user.
10. Notes for mounting, operating in ...