Yokogawa MLX Manuel d'utilisateur télécharger pdf (Page 12)

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IM 60A02S01-01E-A

• In hazardous location, wiring shall be in conduit.

WARNING: A SEAL SHALL BE INSTALLED WITHIN 50 cm OF THE

ENCLOSURE.

• When installed in Division 2,“FACTORY SEALED, CONDUIT SEAL NOT

REQUIRED”.

• All wiring shall comply with National Electrical Code ANSI/NEPA70 and Local

Electrical Codes.

Note 3. Installation

• Installation should be in accordance with ANSI/ISA RP12.6 “Installation of

Intrinsically Safe Systems for Hazardous (Classified) Locations” and the

National Electric Code (ANSI/NFPA 70).

• Strictly observe the “WARNING” on the attached nameplate.

WARNING: OPEN CIRCUIT BEFORE REMOVING COVER. INSTALL IN

ACCORDANCE WITH THE INSTRUCTION MANUAL.

Note 4. Maintenance and Repair

• The instrument modification or parts replacement by other than authorized

representative of Yokogawa Corporation of America is prohibited and will void

Factory Mutual Explosionproof Approval.

Note 5. Special Conditions for Safe Use

• In the case where the enclosure of the MLX is made of aluminum, it must be

installed such, that, even in the event of rare incidents, ignition sources due to

impact and friction sparks are excluded.

b. FM Intrinsically Safe/FM Explosionproof/Dust-Ignition-Proof Type

Caution for FM Intrinsically Safe/FM Explosionproof/Dust-Ignition-Proof type.

Note 1. Model MLX Loop Process Indicators with optional code /FU1 applicable for use in

potentially hazardous locations:

• Certificate No. 4000798

• Conforms to: FM 3600, FM 3610, FMRC 3611, FM 3615, FM 3616, UL 913, UL

1203, UL 60079-0, UL 60079-11

• Explosionproof/Dust-Ignition-Proof for:

- Class I, II, III; Groups A -G; Divisions 1 & 2.

- Class I, Zone 1, Group IIC T4.

- Tamb. –40°C to 80°C

• Intrinsically Safe for:

- Class I, Division 1, II, III; Groups A -G; Divisions 1 & 2.

- Zone 20, Class I, Zone 0

- AEx ia IIC T4

- Tamb. –40°C to 80°C

• Non-Incendive for:

- Class I, II, III; Groups A - D, F, G; Divisions 2.

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Yokogawa MLX Manuel d'utilisateur Page 12