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Description and specifications
April 2022
Cup type diffusion assembly
Use the cup type diffusion assembly in high temperature applications where frequent
diffusion element plugging is an option.
Figure 1-4: Cup Type Diffusion Assembly
The assembly is available with either a 5 micron or 40 micron sintered Hastelloy element.
This diffusion element offers the greater surface area of the ceramic element, but is much
more rugged. This element is also available with a dust seal for use with an abrasive shield.
Abrasive shield assembly
The abrasive shield assembly is a stainless steel tube that surrounds the probe assembly.
The shield protects against particle abrasion and condensations, provides a guide for ease
of insertion, and acts as a positive support, especially for longer probes. The abrasive
shield assembly uses a modified diffusor and vee deflector assembly, fitted with dual dust
seal packing.
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Reference Manual
00809-0100-4884
Emerson.com/Rosemount
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