3. Explosion Protection Instrumentation in Zone 2/Division 2
3-13
TI 33Q01J30-01E
3.1.2
FM NI (FM Nonincendive)
A Field Control Unit (for Vnet/IP), a node unit for FIO/N-IO, an I/O module, and N-IO field
enclosure of CENTUM have acquired NI of Factory Mutual (FM) safety certification.
This approval permit that the products above can be used in hazardous areas such as Class Ι
and Division 2 and that the I/O module for FIO and base plate can be directly connected to an FM
NI approved field device installed in hazardous areas such as Class Ι and Division 2.
In addition, I/O modules for FIO and base plate installed in non-hazardous areas can be directly
connected to an FM NI approved field device installed in hazardous areas such as Class Ι and
Division 2.
E
xplosion-proof specifications, Complied standard, Compliant
Products, and Parameters
The references are listed in the following table.
Explosion
protection
construction
Reference of Explosion-proof specifications, Complied Standard, Compliant
Products, and Parameters
FIO System
N-IO System
FCU
FIO Node
Unit
FCU
N-IO Node
Unit
FIO Node
Unit
N-IO field
enclosure
A2BN4D A2BN5D
FM Non-Incendive
App. 1.1
App. 1.1
App. 1.3
App. 1.3
App. 1.1
App. 1.4
App. 1.5
App. 1.6
–: Non-compliant
Note: Regarding the latest conformity standard, refer to the GS 33J01A10-01EN “Integrated Production Control System CENTUM VP
System Overview”.
Dec. 3, 2021-00
