Yokogawa EJA110E Manual de usuario descargar pdf (Pagina 12)

<2. Handling Cautions>

2-4

IM 01C25B01-01E

IMPORTANT

For combined approval types

Once a device of multiple approval type is

installed, it should not be re-installed using any

other approval types. Apply a permanent mark

in the check box of the selected approval type

on the certication label on the transmitter to

distinguish it from unused approval types.

IMPORTANT

All the blind plugs which accompany the EJX/

EJA-E transmitters upon shipment from the

factory are certied by the applicable agency in

combination with those transmitters. The plugs

which are marked with the symbols “◊ Ex” on

their surfaces are certied only in combination

with the EJX/EJA-E series transmitters.

2.9.1 FM Approval

a. FM Intrinsically Safe Type

Caution for FM intrinsically safe type. (Following

contents refer “DOC. No. IFM022-A12”)

Note 1. Model EJX/EJA-E Series Differential,

gauge and absolute pressure transmitters

with optional code /FS1 are applicable for

use in hazardous locations.

• Applicable Standard: FM3600, FM3610,

FM3611, FM3810

• Intrinsically Safe for Class I, Division 1,

Groups A, B, C & D. Class II, Division 1,

Groups E, F & G and Class III, Division 1,

Class I, Zone 0 in Hazardous Locations, AEx

ia IIC

• Nonincendive for Class I, Division 2, Groups

A, B, C & D. Class II, Division 2, Groups F &

G, Class I, Zone 2, Groups IIC, in Hazardous

Locations.

• Outdoor hazardous locations, NEMA TYPE

4X.

• Temperature Class: T4

• Ambient temperature: –60 to 60°C

Note 2. Entity Parameters

• Intrinsically Safe Apparatus Parameters

[Groups A, B, C, D, E, F and G]

Vmax = 30 V Ci = 6 nF

Imax = 200 mA Li = 0 µH

Pmax = 1 W

* Associated Apparatus Parameters

(FM approved barriers)

Voc ≤ 30 V Ca > 6 nF

Isc ≤ 200 mA La > 0 µH

Pmax ≤ 1W

• Intrinsically Safe Apparatus Parameters

[Groups C, D, E, F and G]

Vmax = 30 V Ci = 6 nF

Imax = 225 mA Li = 0 µH

Pmax = 1 W

* Associated Apparatus Parameters

(FM approved barriers)

Voc ≤ 30 V Ca > 6 nF

Isc ≤ 225 mA La > 0 µH

Pmax ≤ 1 W

• Entity Installation Requirements

Vmax ≥ Voc or Uo or Vt, Imax ≥ Isc or Io or It,

Pmax (or Po) ≤ Pi, Ca or Co ≥ Ci + Ccable,

La or Lo ≥ Li + Lcable

Note 3. Installation

• Barrier must be installed in an enclosure that

meets the requirements of ANSI/ISA S82.01.

• Control equipment connected to barrier must

not use or generate more than 250 V rms or

V dc.

• Installation should be in accordance with

ANSI/ISA RP12.6 “Installation of Intrinsically

Safe Systems for Hazardous (Classied)

Locations” and the National Electric Code

(ANSI/NFPA 70).

• The conguration of associated apparatus

must be FMRC Approved.

• Dust-tight conduit seal must be used when

installed in a Class II, III, Group E, F and G

environments.

• Associated apparatus manufacturer’s

installation drawing must be followed when

installing this apparatus.

• The maximum power delivered from the

barrier must not exceed 1 W.

• Note a warning label worded

“SUBSTITUTION OF COMPONENTS MAY

IMPAIR INTRINSIC SAFETY,” and “INSTALL

IN ACCORDANCE WITH DOC. No. IFM022-

A12”

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