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World Class 3000
Figure A-8. Ceramic Diffusion/Dust Seal Assembly
These modified diffusion and vee deflector
assemblies are available in standard, Figure
A-8, and flame arrestor version, Figure A-9.
b. Ceramic Diffusion Assembly
The ceramic diffusion assembly, Figure
A-10, is the traditional design for the probe.
Used for over 25 years, the ceramic diffu-
sion assembly provides a greater filter sur-
face area for the probe.
Figure A-9. Flame Arrestor Diffusion/Dust
Seal Assembly
Rosemount Analytical Inc.
A Division of Emerson Process Management
P0010
Figure A-10. Ceramic Diffusion Assembly
c. Flame Arrestor Diffusion Assembly
Where a high concentration of unburned
fuel is present in the exhaust gases, a flame
arrestor diffusion assembly, Figure A-9 and
Figure A-11 is recommended.
The flame diffusion assembly includes a set
of baffles between the cell and the stack
gases. This keeps 1500°F (816°C) cell tem-
peratures from igniting unburned fuel in the
stack.
P0011
Figure A-11. Flame Arrestor Diffusion Assembly
Instruction Manual
Appendix A Rev. 3.6
July 1998
19280010
P0012
Appendices
A-7
A
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