03/07/2007 Appendix A of CI-2808B Page 1 of 1
Series 2808 Transmitters - Models 2808-15B, 16B & 35B
Special Instructions for Class I, Division 2 Hazardous Locations
1. The Bristol Series 2808 Pressure Transmitters, Models 2808-15B, 28-0-16B & 2808-35B
are listed by Underwriters Laboratories (UL) as nonincendive and are suitable for use
in Class I, Division 2, Groups A, B, C and D hazardous locations or non-hazardous
locations. Read this document carefully before installing a nonincendive Bristol Series
2808 Pressure Transmitter. In the event of a conflict between the Series 2808
Instruction Manual (CI-2808B) and this document, always follow the instructions in
this document.
2. Wiring must be performed in accordance with Class I, Division 2 wiring methods as
defined in Article 501-4 (b) of the National Electrical Code, NFPA 70 for installations
within the United States, or as specified in Section 18-152 of the Canadian Electrical
Code for installation in Canada.
3. Models equipped with the Loop Powered Indicator Option (Appendix B) are approved for
use in Class I, Division 2, Groups A, B, C and D hazardous locations.
4. WARNING: EXPLOSION HAZARD - Substitution of components may impair
suitability for use in Class I, Division 2 environments.
5. WARNING: EXPLOSION HAZARD - When situated in a hazardous location,
turn off power before servicing/replacing the unit and before installing or
removing I/O wiring.
6. WARNING: EXPLOSION HAZARD - Do Not disconnect equipment unless the
power has been switched off or the area is known to be nonhazardous.
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