1. Explosion Protection Instrumentation
1-9
TI 32S01J30-01E
O
verview of Connecting S2BN1D base plate for US (FM) and Canada (FM)
S2BN1D base plate can be connected to the NI-compliant devices installed in Division 2. For the
connection to an NI-compliant device, it is necessary to compare parameters between the device
installed in a hazardous area and ProSafe-RS I/O module and evaluate whether connection is
possible or not.
S2BN1D base plate can be connected to the flameproof devices installed in Division 1 / Division
2 with explosion-proof wiring that is defined in NEC (National Electrical Code), CEC (Canadian
Electrical Code) or the rules/standards of each country or region. (*1)
N-IO node unit including S2BN1D can be installed in Division 2 by mounting in a keyed metal
cabinet approved by approval authorities.
N-IO field enclosure S2NN70D is equipped with S2BN1D inside the enclosure, so the figure
below is also applicable for S2NN70D. In that case, replace S2BN1D with S2NN70D in the figure
below.
*1:
SCB100 / SCB110 shall not be installed in Division 1.
When using SCB100/SCB110 to perform field wiring diagnosis to the field device installed in Division 1, it is necessary to prepare
an element that has the same characteristics as SCB100/SCB110 and is compatible with Division installation. When using these
elements to realize the wiring diagnosis of the DI function, check the behavior with the actual connection environment before
using. Please contact with Yokogawa about the specification of SCB100/SCB110.
Non-Hazardous Area
Flameproof
device
NI-compliant
device
F010307E.ai
Division 1
Division 2
S2BN1D Base plate
*1
*1:
Explosion-proof wiring that is defined in NEC, CEC or the rules/standards of each country or region.
Figure Connection of S2BN1D for US (FM) and Canada (FM) (1)
Division 1
Division 2
Non-Hazardous Area
Flameproof
NI-compliant
device
F010308E.ai
S2BN1D
Base plate
device
*1
*1:
Explosion-proof wiring that is defined in NEC, CEC or the rules/standards of each country or region.
Figure Connection of S2BN1D for US (FM) and Canada (FM)
Dec 3, 2021-00
