<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 figure.
• 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 modification or part replacements
by other than authorized representatives of
Yokogawa Electric Corporation are prohibited
and will void CSA Certification.
(5) Dual Seal (Option /CF11)
Dual Seal:
Certified 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 amplifier
housing.