Siemens SIPART Series Operating Instructions Manual page 253

Explosion protection
Types of protection
Intrinsic safety "ia"
•
Intrinsic safety "ic"
•
Non-sparking "nA"
•
Permissible ambient temperature
SIPART PS2 with and without HART
Operating Instructions, 10/2013, A5E00074631-11
Ex markings
ATEX/IECEx
Zone 1:
II 2 G Ex ia IIC T6/T4 Gb
Zone 2:
II 3 G Ex ic IIC T6/T4 Gc
Zone 2:
II 3 G Ex nA IIC T6/T4 Gc
T4: -40 ... +90 °C (-40 ... +194 °F)
T6: -40 ... +70 °C (-40 ... +158 °F)
12.8 Option modules
FM
IS, Class I, Divison 1, ABCD
IS, Class I, Zone 1, AEx ib, IIC
-
NI, Class I, Divison 2, ABCD
NI, Class I, Zone 2, AEx nA, IIC
T4: -40 ... +85 °C (-40 ... +185 °F)
T6: -40 ... +70 °C (-40 ... +158 °F)
Technical data
251