Table 11 Mounting Remote Diaphragm Seal Transmitter - Honeywell ST 3000 User Manual

4.2 Mounting ST 3000 Transmitter,
Remote seal
mounting
WARNING
36 ST 3000 Release 300 and SFC Model STS103 User's Manual
Use the procedure in Table 11 to mount a remote diaphragm seal
transmitter model. Figure 13 shows a typical installation for a remote
diaphragm seal transmitter for reference.
Mount the transmitter flanges within the limits stated here for the given
fill-fluid in the capillary tubes with a tank at one atmosphere.
IF the fill fluid is...
Silicone DC 200 Oil
Silicone DC 704 Oil
Chlorotrifluorethylene
NOTE: The combination of tank vacuum and high pressure capillary
head effect should not exceed 9 psi (300 mm Hg) absolute.
Table 11 Mounting Remote Diaphragm Seal Transmitter
Step
1 Mount transmitter at a remote distance determined by length of
capillary tubing.
2
If Transmitter Model
Number is...
STR93D or STR12D
STR13D
ATTENTION
accommodate the flange extension.
Continued
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
Then Connect Remote
Seal on...
high pressure (HP) side of
transmitter to lower flange
mounting on tank wall for
variable head H1.
low pressure (LP) side of
transmitter to lower flange
mounting on tank wall for
variable head H1.
On insulated tanks, remove enough insulation to
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