Emerson Rosemount 6888A, Reference Manual

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Snubber diffusion assembly
The standard snubber diffusion assembly ( Figure 1-4 ) is satisfactory for most applications;
however, the snubber diffuser should not be used in flue gas temperatures above 400 °C
(752 °F).
Snubber Diffusion Assembly Figure 1-4:
Ceramic diffusion assembly
The ceramic diffusion assembly ( Figure 1-5 ) is the traditional design for the probe. Used for
over 25 years, the ceramic diffusion assembly provides a greater filter surface area.
Ceramic Diffusion Assembly Figure 1-5:
Cup-type diffusion assembly
The cup-type diffusion assembly ( Figure 1-6 ) is typically used in high temperature
applications where frequent diffusion element plugging is a problem. The cup-type
difusion assembly is available with a 40 micron, sintered, Hastelloy element.
Description and specifications
Reference Manual 9