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Reference Manual
00809-0100-4514, Rev BA
January 2008
Rosemount 1154
2-8
Conduit
1. Seal the conduit threads with thread sealant. (The transmitter conduit
seal interface was qualified using Grafoil
™
tape.) Conduit threads
mate with a standard
1
/2–14 NPT male fitting.
2. Starting at zero thread engagement, install the conduit into the
transmitter between 4 and 7 turns, or a minimum of 12.5 ft-lb (16.9
N-m). Hold the electronics housing securely to avoid damaging the
threaded neck seal between the sensor module and the electronics
housing during conduit installation.
3. Provide separate support for the conduit if necessary.
Figure 2-6. Transmitter Installation Configuration.
Electrical 1. Remove the cover from the terminal side of the transmitter
(see Figure 2-5 on page 2-7).
2. Connect the power leads to the “SIGNAL” terminals on the transmitter
terminal block (see Figure 2-7 on page 2-9). Torque the terminal
screws to 5 in-lb (0.6 N-m), or hand-tight.
NOTE
Do not connect signal leads to the “TEST” terminals.
3. Recheck connections for proper polarity.
4. Check the cover O-ring grooves for cleanliness. If chips or dirt are
present, clean the seat and mating portion of the cover with alcohol.
Lubricate replacement O-ring with O-ring grease (RMT P/N
01153-0248-0001 or P/N 01153-0053-0001). The transmitter was
qualified using Dow Corning
®
55 Silicone O-ring Grease.
5. Spray the inside threads of the electronics covers with cover lubricant
(Rosemount P/N 01153-0333-0001 or equivalent) if necessary; if
covers are already sufficiently lubricated, do
not spray.
6. Carefully replace cover and tighten to 16.5 ft-lb (22.4 N-m).
Blocking Valves
Flow
3-Valve Manifold
Plugged Tees for
Steam Service or
Sealing Fluid
Drain/Vent
Valves
Sufficient
Length
for Cooling
ROSEMOUNT 1154DP, HP
Plugged Tee for
Steam Service or
Sealing Fluid
Blocking
Valve
Drain/Vent
Valve
ROSEMOUNT 1154GP
Drain/Vent
Valves
Drain/Vent
Valve
3-Valve
Manifold
Flow
ROSEMOUNT 1154DP, HP
ROSEMOUNT 1154 GP
LIQUID SERVICE
GAS SERVICE
L
H
Sufficient
Length
for Cooling
H
L
Sufficient
Length
for Cooling