Table 9 Mounting Remote Diaphragm Seal Transmitter - Honeywell ST 3000 User Manual
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- User manual (338 pages) ,
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4— Installation - Mounting ST 3000 Transmitter
Remote seal mounting
ST 3000 transmitters furnished with remote diaphragm seals (models STRxxx) can be mounted using the
optional mounting brackets. (See procedure in Table 6 in this section for bracket mounting.) Follow the
guidelines below to determine the mounting position of the remote seals for the given fill fluid and then use
the procedure in Table 9 to mount the remote seals to the process connections.
Figure 12 shows a typical installation for a remote diaphragm seal transmitter for reference.
WARNING
Mount the remote seal flanges within the limits stated below for the given fill-fluid in the
capillary tubes.
IF the fill fluid is...
Silicone DC 200 Oil
Silicone DC 704 Oil
Chlorotrifluorethylene (CTFE)
NOTE: The combination of tank vacuum and high pressure capillary head effect should not exceed 9 psi
(300 mm Hg) absolute.
Step
1
Mount transmitter at a remote distance determined by length of capillary tubing.
2
To measure variable head H1, mount remote seals on tank walls as follows:
•
If Transmitter Model Number is...
•
If Transmitter Model Number is...
See Figure 12.
ATTENTION
On insulated tanks, remove enough insulation to accommodate the flange extension.
3
It is the End User's responsibility to provide a flange gasket and mounting hardware that are
suitable for the transmitter's service condition
26
Table 9 Mounting Remote Diaphragm Seal Transmitter
STR93D or STR12D, then connect remote seal on high pressure (HP) side of
transmitter to either the lower flange or the upper flange.
STR13D, the remote seal on low pressure (LP) side of transmitter must be connected
to lower flange.
ST 3000 HART Transmitter Release 300 User Manual
THEN mount the flange...
no greater than 22 feet (6.7 meters) below the transmitter.
no greater than 19 feet (5.8 meters) below the transmitter.
no greater than 11 feet (3.4 meters) below the transmitter.
Action
10/05
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