YOKOGAWA digitalYEWFLO Series

<10. EXPLOSION PROTECTED TYPE INSTRUMENT>
10-12
IM 01F06F00-01EN
(2) Wiring
•Explosionproof
WARNING
• All wiring shall comply with Canadian
Electrical Code Part I and Local Electrical
Codes.
• In Hazardous locations, wiring shall be in
conduit as shown in the gure.
• A SEAL SHALL BE INSTALLED WITHIN
50cm OF THE ENCLOSURE.
• When the equipment is installed in Division
2, “FACTORY SEALED, CONDUIT SEAL
NOT REQUIRED”.
(3) Operation
•Explosionproof
WARNING
• Note a warning label worded as follows.
Warning: OPEN CIRCUIT BEFORE
REMOVING COVER.
• Take care not to generate mechanical
spark when access to the instrument and
peripheral devices in hazardous locations.
(4) Maintenance and Repair
WARNING
The instrument modication or part replacements
by other than authorized representatives of
Yokogawa Electric Corporation are prohibited
and will void CSA Certication.
(5) Dual Seal (Option /CF11)
Dual Seal:
Certied by CSA to the requirement of ANSI/ISA
12.27.01
No additional sealing required.
Primary seal failure annunciation: at the O-ring
seal portion between shedder bar and amplier
housing.