Yokogawa FVX110 - Manual (Page 13)

<2. Handling Cautions>
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IM 01S01C01-01EN
2.8 Installation of an Explosion-
Protected Instrument
If a customer makes a repair or modification to
an intrinsically safe or explosionproof instrument
and the instrument is not restored to its original
condition, its intrinsically safe or explosionproof
construction may be compromised and the
instrument may be hazardous to operate. Please
contact Yokogawa before making any repair or
modification to an instrument.
CAUTION
This instrument has been tested and certified
as being intrinsically safe or explosionproof.
Please note that severe restrictions apply to this
instrument’s construction, installation, external
wiring, maintenance and repair. A failure to abide
by these restrictions could make the instrument a
hazard to operate.
WARNING
Maintaining the safety of explosionproof
equipment requires great care during mounting,
wiring, and piping. Safety requirements also
place restrictions on maintenance and repair.
Please read the following sections very carefully.
2.8.1 FM approval
a. FM Explosionproof Type
Caution for FM Explosionproof type
Note 1. FVX110 Fieldbus Segment Indicator with
optional code /FF1 is 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 4X.
• Temperature Class: T6
• Ambient Temperature: –40* to 60ºC
* –15ºC when O-ring material is Fluoro-rubber.
• Supply Voltage: 32V dc max.
• Current Draw: 15 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 indicator.
WARNING: OPEN CIRCUIT BEFORE
REMOVING COVER. FACTORY SEALED,
CONDUIT SEAL NOT REQUIRED. INSTALL
IN ACCORDANCE WITH THE USERS
MANUAL IM 01S01C01.
• Take care not to generate mechanical
sparking when accessing 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.