YOKOGAWA EJX Series User Manual Download Page 10

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<2. Handling Cautions>

IM 01C25A01-01E

F0205.ai

Pressure Transmitters

Supply

Hazardous Location

Nonhazardous Location

+
–

Class I, II, Division 2,

Groups A, B, C, D, F, G

Class 1, Zone 2, Group IIC,

in Hazardous (Classified)

Locations

Not Use

Safety Barrier

[Nonincendive]

General

Purpose

Equipment

b. FM Explosionproof Type

Caution for FM explosionproof type.

Note 1. Model EJX/EJA-E Series pressure transmitters

with optional code /FF1 are applicable for use in
hazardous locations.

• Applicable Standard: FM3600, FM3615, FM3810,

ANSI/NEMA 250

• Explosionproof for Class I, Division 1, Groups B, C

and D.

• Dust-ignitionproof for Class II/III, Division 1,

Groups E, F and G.

•  Enclosure rating: NEMA TYPE 4X
•  Temperature Class: T6
•  Ambient Temperature: –40 to 60°C
•  Supply Voltage: 42 V dc max.
•  Output signal: 4 to 20 mA

Note 2. Wiring

• All wiring shall comply with National Electrical

Code ANSI/NFPA70 and Local Electrical Codes.

• When installed in Division 1, “FACTORY SEALED,

CONDUIT SEAL NOT REQUIRED.”

Note 3. Operation

• Keep the “WARNING” nameplate attached to the

transmitter.

WARNING: OPEN CIRCUIT BEFORE

REMOVING COVER. FACTORY SEALED,
CONDUIT SEAL NOT REQUIRED. INSTALL IN
ACCORDANCE WITH THE USERS MANUAL IM
01C25.

• Take care not to generate mechanical sparking

when accessing to the instrument and peripheral
devices in a hazardous location.

Note 4. Maintenance and Repair

• The instrument modification or parts replacement

by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void Factory Mutual Explosionproof Approval.

c. FM Intrinsically Safe Type/FM

Explosionproof Type

Model EJX/EJA-E Series pressure transmitters
with optional code /FU1 or /V1U1 can be selected
the type of protection (FM Intrinsically Safe or FM
Explosionproof) for use in hazardous locations.

Note 1. For the installation of this transmitter, once a

particular type of protection is selected, any
other type of protection cannot be used. The
installation must be in accordance with the
description about the type of protection in this
instruction manual.

Note 2. In order to avoid confusion, unnecessary

marking is crossed out on the label other
than the selected type of protection when the
transmitter is installed.

2.4.2 CSA Certification

a. CSA Intrinsically Safe Type

Caution for CSA Intrinsically safe and nonincendive
type. (Following contents refer to “DOC No. ICS013-
A13”)

Note 1. Model EJX/EJA-E Series differential, gauge,

and absolute pressure transmitters with optional
code /CS1 are applicable for use in hazardous
locations

Certificate: 1606623
[For CSA C22.2]
• Applicable Standard: C22.2 No.0, C22.2 No.0.4,

C22.2 No.25, C22.2 No.94, C22.2 No.157,
C22.2 No.213, C22.2 No.61010-1,
C22.2 No.60079-0

• Intrinsically Safe for Class I, Division 1, Groups

A, B, C & D, Class II, Division 1, Groups E, F & G,
Class III, Division 1

• Nonincendive for Class I, Division 2, Groups A, B,