Reference Manual
00809-0100-4026, Rev FA
July 2009
Rosemount 5400 Series
3-14
Process Seal Antenna
Figure 3-14. Mounting the 5400
with Process Seal.
Table 3-9. Tightening torque for
Process Seal flanges.
1. Place the O-ring in the groove on the
underside of the antenna process
window. See page A-8 for information on
temperature ranges for the O-ring.
2. Place the antenna on top of the nozzle.
3. Mount the flange and tighten the bolts
cross-wise. For torque information, see
Tabl e 3-9 .
4. Mount the transmitter head and tighten
the nut to 60 Nm (44 Lbft).
5. Re-tighten the flange bolts after 24 hours.
O-ring (no
gasket required)
Process Seal window
Bolt
O-rings (one customer mounted,
and one integrated)
Flange
Transmitter
housing
Nut,
60 Nm
(44 Lbft)
Locking
screw
(ATEX)
Process Seal
antenna
Nozzle
Tank flange
Nut
Flange Torque (Nm) Torque (Lbft)
2 in. (50 mm), 150lbs 80 59
2 in. (50 mm), 300lbs 80 59
3 in. (75 mm), 150lbs 80 59
3 in. (75 mm), 300lbs 125 92
4 in. (100 mm), 150 lbs 80 59
4 in. (100 mm), 300 lbs 125 92
DN 50 PN 40 109 80
DN 80 PN 40 109 80
DN 100 PN 16 109 80
DN 100 PN 40 135 100
50A 10K 109 80
80A 10K 109 80
100A 10K 109 80
150A 10K 135 100
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