Yokogawa EJA110E Bedienungsanleitung PDF herunterladen (Seite 13)

<2. Handling Cautions>

2-5

IM 01C25B01-01E

Note 4. Maintenance and Repair

• The instrument modication or parts

replacement by other than authorized

representative of Yokogawa Electric

Corporation is prohibited and will void

Factory Mutual Intrinsically safe and

Nonincendive Approval.

F0203-1.ai

Class I, II, III, Division 1,

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

Class 1, Zone 0 in

Hazardous (Classified)

Locations AEx ia IIC

Pressure Transmitters

Safety Barrier

Supply

Hazardous Location Nonhazardous Location

General

Purpose

Equipment

+

–

+

–

+

–

+

–

[Intrinsically Safe]

F0203-2.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 modication 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.

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