Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 15)

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IM 11B08A01-01E
 Installation site and environment
The analyzer specifi cations allow it to be used in hazardous areas as defi ned by DIV1, GPS B, C
& D, T1, T2, T3, T4 (FM) or Zone 1 IIB + H2T1, T2, T3, T4 (ATEX, IECEx, TIIS). However, never
install the analyzer in an area where dense explosive gas exists for a long time.
For the class of hazardous areas:
For FM, refer to Article 500 of the National Electrical Code (NEC).
For ATEX or IECEx, see IEC 60079-10-1.
For TIIS explosion protection, refer to Article 1 (15) to (17) of the Constructional Requirements for
Electrical Equipment for Explosive Atmospheres (Japanese only).
 Wiring works
<FM>
WARNING
• All wiring shall comply with National Electric Code ANSI/NFP A 70 and Local Electric Codes.
• In a hazardous area, use conduits for wiring in the protection system or to electronics
sections.
CAUTION
• The unused electrical connection ports should be closed with an appropriate fl ameproof-
certifi ed plug.
• Analyzers have pressurized enclosures. The cable end should be sealed in order to
maintain pressure to the pressurized enclosure. Otherwise, power is not supplied to the
electronics section.
<ATEX, IECEx>
WARNING
• All wiring shall comply with Local Electric Codes and Requirements.
• In a hazardous area, use appropriate fl ameproof-certifi ed parts for connecting cables.
• All externally powered input signals into the pressurized enclosure shall be isolated by
external relays controlled by the Ex px protection system(Ex px safety device).
CAUTION
• The unused electrical connection ports should be closed with an appropriate fl ameproof-
certifi ed plug.
• Analyzers have pressurized enclosures. The cable end should be sealed in order to
maintain pressure to the pressurized enclosure. Otherwise, power is not supplied to the
electronics section.
2nd Edition : May 11, 2012-00