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Reference Manual
00809-0100-4002, Rev BB
November 2012
2-5
Rosemount 1199
Figure 2-4. Balanced System
NOTE
Temperature effects were calculated in Instrument Toolkit using a 2-in. (DN
50) FFW seal, Silicone 200, 10 ft. (3 m) between the taps, over a 50 °F (28
°C) temperature change.
Tuned-Systems Assemblies are asymmetrical systems with one seal directly
mounted and another seal connected via capillary. Another possible
Tuned-System Assembly is any remote seal system with unequal lengths of
capillary or two different remote seals on the high and low pressure
connections. Due to the unequal lengths of capillary, there are seal
temperature effects. However, this seal temperature effect counters the head
pressure from the oil-filled capillary and reduces total temperature effects on
the entire system.
Figure 2-5. Tuned-System
Assembly
(Cancels out)
Содержание 1199
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