1. Explosion Protection Instrumentation
1-6
TI 32S01J30-01E
Connection of FIO equipment for US (FM) and Canada (FM)
ProSafe-RS/ProSafe-RS Lite NI-compliant equipment 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/
ProSafe-RS Lite I/O module and evaluate whether connection is possible or not.
ProSafe-RS/ProSafe-RS Lite equipment can be connected to the ameproof devices installed
in Division 1 / Division 2 with explosion-proof wiring that is dened in NEC (National Electrical
Code), CEC (Canadian Electrical Code) or the rules/standards of each country or region. (*1)
*1: SCB100 / SCB110 shall not be installed in Division 1.
When using SCB100/SCB110 to perform eld wiring diagnosis to the eld 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 1 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 specication of SCB100/SCB110.
Division 1 Division 2 Non-Hazardous Area
Flameproof
device
SNU
NI-compliant
device
*1
*1: Explosion-proof wiring that is dened in NEC, CEC or the rules/standards of each country or region.
Figure NI (Installation in Non-Hazardous Area)
ProSafe-RS/ProSafe-RS Lite NI-compliant equipment can be installed in Division 2 by mounting
in a keyed metal cabinet approved by approval authorities.
Division 1 Division 2
Flameproof
device
SNU
NI-compliant
device
F010304E.ai
*1
*1: Explosion-proof wiring that is dened in NEC, CEC or the rules/standards of each country or region
Figure NI (Installation in Division 2)
Dec 3, 2021-00
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