YOKOGAWA ProSafe-RS Technical Information

1. Explosion Protection Instrumentation
1-7
TI 32S01J30-01E
Dec 3, 2021-00
 Overview of Connecting N-IO Components
 Overview of Connecting S2BN1D base plate for ATEX, IECEx, and UKEX
S2BN1D Base plate can be connected to the intrinsic safety device installed in Zone 0, Zone 1,
and Zone 2 using a barrier and explosion-proof wiring as shown in the following gures.
They can be connected to Intrinsic safety device installed in Zone 0, 1, and 2 using Explosion-
proof wiring that is dened in IEC/EN 60079-14 and the rules/standards of each country or
region.
S2BN1D base plate can be connected to the Ex “ec”/Type “n” devices installed in Zone 2 with
explosion-proof wiring that is dened in IEC/EN 60079-14 and the rules/standards of each
country or region.
S2BN1D base plate can be connected to the ameproof devices installed in Zone 1 / Zone 2
with explosion-proof wiring that is dened in IEC/EN 60079-14 and the rules/standards of each
country or region. (*1)
N-IO node unit including S2BN1D and SCU or node unit (24 V DC feeding type) can be installed
in Zone 2 by mounting in a keyed metal cabinet with protection rating of IP54 or higher.
N-IO eld enclosure S2NN70D is equipped with S2BN1D inside the enclosure, thus the following
gure is also applicable to S2NN70D. In the case of S2NN70D, replace S2BN1D with S2NN70D.
*1: SCB100 / SCB110 shall not be installed in Zone 1.
When using SCB100/SCB110 to perform eld wiring diagnosis to the eld device installed in Zone 1, it is necessary to prepare
an element that has the same characteristics as SCB100/SCB110 and is compatible with Zone 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 specication of SCB100/SCB110.
S2BN1D Base plate
F010305E.ai
Zone1 Zone2 Non-Hazardous AreaZone0
Safety
Barrier
Safety
Barrier
Safety
Barrier
Flameproof
device
Intrinsic safety
device
Ex "ec"
Type “n”
device
Intrinsic safety
device
Intrinsic safety
device
*1
*1
*1
*1
*1
*1: Explosion-proof wiring that is dened in IEC/EN 60079-14 or the rules/standards of each country or region.
Figure Connection of S2BN1D for ATEX, IECEx, and UKEX (1)

YOKOGAWA ProSafe-RS Specifications

General

Brand	YOKOGAWA
Model	ProSafe-RS
Category	Industrial Equipment
Language	English