WIKA TR Serie Información Adicional página 12

3. Commissioning, operation
3.4.2 Possible installation methods with the marking II 3G Ex ec IIC T1 ... T6 Gc X
or II 3G Ex nA IIC T1 ... T6 Gc X or II 3D Ex tc IIIC TX °C Dc X
Zone 2 or zone 22
EN
Thermowell
TWxx
without separation of Ex zones
12 WIKA additional information, models TRxx and TCxx (Ex nA, Ex ec, Ex eb, Ex tc, Ex tb)
Hazardous area
Connection head/
Field case
Process
connection
Compression
fitting
optional: process
connection
welded
Compression fitting
Non-hazardous area
Optional:
with
mounted
transmitter
i.e. T32
Maximum overvoltage
category II according
to IEC/EN 60664-1 is
permitted for the circuits.
Possible installation
methods with the marking
II 3G Ex ec IIC T1 ... T6 Gc X,
II 3G Ex nA IIC T1 ... T6 Gc X
or II 3G Ex tc IIIC TX °C Db