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Reference Manual
00809-0100-4002, Rev BB
November 2012
Rosemount 1199
www.rosemount.com
Section 2
Understanding DP Level
DP Level and Remote Seal System Measurement . . . . . . . page 2-1
Terminology of System Components . . . . . . . . . . . . . . . . . . page 2-1
Understanding Seal System Performance . . . . . . . . . . . . . . page 2-2
Balanced vs. Tuned-System™ Assemblies . . . . . . . . . . . . . page 2-4
Specifying the Right Solution for Vacuum Applications . . . . page 2-6
Diaphragm Weld Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2-7
Differences between ERS and Capillary Systems . . . . . . . . page 2-8
Instrument Toolkit: Seal Ordering and Application Process . page 2-8
Thermal Optimizer: Proper Use and Applications . . . . . . . . . page 2-8
DP LEVEL AND REMOTE
SEAL SYSTEM
MEASUREMENT
DP Level is a reliable measurement solution for measuring level, density,
interface, or mass of a process media inside a tank.
Remote seal system measurement is unaffected by agitation, foam, or
internal obstacles. Remote diaphragm seals extend limitations due to process
conditions such as high and low temperatures, corrosive processes, viscous
mediums, and sanitary connections.
TERMINOLOGY OF
SYSTEM COMPONENTS
Figure 2-1 lists the basic components for seal assemblies.
Figure 2-1. Components on a
two and single seal assembly
TWO SEAL ASSEMBLY
SINGLE SEAL ASSEMBLY
Pressure, Differential Pressure, or
MultiVariable Transmitter
Process Flange
Direct Mount
Remote
Diaphragm
Flushing
Connection
Capillary
Remote
Diaphragm
Process Flange
Содержание 1199
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