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Reference Manual
00809-0100-4002, Rev BB
November 2012
Rosemount 1199
3-2
The protective cover should remain on the seal until the moment before
installation. Try to avoid touching the diaphragm with fingers or objects and
refrain from setting the diaphragm side of the seal down on a hard surface.
Even minor dents or scratches in the diaphragm material may impair the
performance of the seal system assembly.
When installing remote seal systems which employ a gasket or a gasket and
flushing connection ring, make sure the gasket is aligned properly on the
gasket sealing surface. The user is responsible to ensure the gasket used
does not exceed the temperature limits of the process. Failure to properly
install the gasket may cause process leaks, which can result in death or
serious injury.
In addition, make sure the gasket does not press down upon the diaphragm
face. Anything pressing on the diaphragm will be read by the transmitter as
pressure. A misaligned gasket may cause a false reading.
Failing to recognize incorrect materials during installation may cause process
leaks, which can result in damage to the diaphragm seal system or death
and/or serious injury to personnel. Proper wetted material is required for
specific process materials. Please contact your Emerson Process
Management representative on questions regarding proper process-wetted
materials.
GASKETS
The diaphragm gasket is supplied when the lower housing or flushing
connection is provided. The default gaskets are listed below, based on seal
type. The process gasket must be supplied by the end user. Tantalum
diaphragms are not supplied with default gasket, so a gasket option must be
selected when applicable.
Table 3-1. Gasket Materials
Seal Type
Gaskets
FFW
ThermoTork TN-9000
FCW
No gasket is supplied
FUW
No gasket is supplied
FVW
No gasket is supplied
RCW
C-4401
RFW
C-4401
FTW
C-4401
PFW
ThermoTork TN-9000
PCW
No gasket is supplied
WSP
C-4401
Summary of Contents for 1199
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