2. CENTUM and Explosion Protection Instrumentation
2-5
TI 33Q01J30-01E
Overview of Connecting Non-Incendive Compliant FIO Module
NI-compliant module can be connected to the devices installed in Division 2. For the connection
to an NI-compliant module, it is necessary to compare parameters between the device installed
in a hazardous area and the device of CENTUM to evaluate whether connection is possible or
not.
An NI-support module and FCS or node unit can be installed in Division 2 by mounting in a keyed
metal cabinet approved by approval authorities.
Non-Hazardous Area
Flameproof
device
Node unit
NI-compliant
device
F020306.ai
Division 1
Division 2
*1
*1 : Explosion-proof wiring that is defined in NEC, CEC or the rules/standards of each country or region
Figure Connection of an NI Compliant Module (1)
Division 1
Division 2
Non-Hazardous Area
Flameproof device
NI-compliant
device
F020304.ai
FCS or node unit
*1
*1 : Explosion-proof wiring that is defined in NEC, CEC or the rules/standards of each country or region
Figure Connection of an NI Compliant Module (2)
Dec .3, 2021-00
