Section 1: Description And Specifications; Features And Applications - Emerson Rosemount 398R Reference Manual

Reference Manual
00809-0100-3098

Section 1: Description and Specifications

1.1

Features and Applications

Rosemount 398R and 398RVP sensors feature a chemical resistant construction of Tefzel, titanium,
and a TUpH reference junction which is ideal for measuring pH in harsh process liquids. These
sensors can be used to measure pH in sour water strippers, in pulp bleaching towards that use
chlorine dioxide, and in process streams containing a variety of organic solvents. These sensors are
designed for use with a 1-1/4 inch or 1-1/2 inch ball valve.
Figure 1-1: Cross Section Diagram of the TUpH Reference Technology
All TUpH sensors are designed with a large area reference junction, helical reference pathway, and an
AccuGlass pH glass bulb. This sensor technology ensures superior performance while only requiring
minimal maintenance.
Description and Specifications
Description and Specifications
February 2019
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