Yokogawa GD40 Gas Density Detector - Manual (Page 30)

<2. Installation, Wiring and Piping>
2-7
IM 11T3E1-01E
2.2.3 GD402V (CSA Explosion-proof Approval)
Sealing Fitting
Conduit
500 mm (20") Max.
NON-HAZARDOUS
LOCATIONS
HAZARDOUS
LOCATIONS
GD402V
F0204.ai
Figure 2.5
1. GD402V Gas density converter for use in hazardous (classified) locations:
• Explosion-proof for Class I, Division 1, Groups B, C and D;
Dust Ignition-proof for Class II, III, Division 1, Groups E, F and G
• Enclosure Rating: Type 4X
• Temperature Code: T6
• Ambient Temperature: -10 to 55°C
2. Wiring
• All wiring shall comply with Canadian Electrical Code and Local Electrical Codes.
• Seal all conduits within 500 mm of the enclosure. Refer to Figure 2.5.
• Note a warning label worded as follows.
WARNING
A seal shall be installed within 500 mm (20 inches) of the enclosure.
3. Operation
• 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
• The instrument modification or parts replacement by other than authorized representative
of Yokogawa Electric Corporation is prohibited and will void the certification of CSA Inter-
national.