Rosemount 306 Integral Manifold Installation Procedure; Rosemount 304 Conventional Manifold Installation Procedure; Manifold Operation - Emerson Rosemount 3051 Reference Manual

Reference Manual
00809-0100-4001, Rev KA
3. If the PTFE sensor module O-rings have been replaced, the flange bolts should be re-tightened after
installation to compensate for cold flow of the O-rings.
Note
Always perform a zero trim on the transmitter/manifold assembly after installation to eliminate
mounting effects.
3.11.2

Rosemount 306 Integral Manifold installation procedure

The Rosemount 306 Manifold is for use only with a Rosemount 3051T In-Line Transmitter.
Assemble the Rosemount 306 Manifold to the Rosemount 3051T In-Line Transmitter with a
thread sealant.
3.11.3

Rosemount 304 Conventional Manifold installation procedure

To install a Rosemount 304 Conventional Manifold to a Rosemount 305T Transmitter:
1. Align the conventional manifold with the transmitter flange. Use the four manifold bolts for
alignment.
2. Finger tighten the bolts, then tighten the bolts incrementally in a cross pattern to final torque value.
See
fully tightened, the bolts should extend through the top of the sensor module housing.
3. Leak-check assembly to maximum pressure range of transmitter.
3.11.4

Manifold operation

Improper installation or operation of manifolds may result in process leaks, which may cause death or
serious injury.
Always perform a zero trim on the transmitter/manifold assembly after installation to eliminate any shift
due to mounting effects. See
Coplanar transmitters
3- and 5-valve manifolds
Performing zero trim at static line pressure
In normal operation the two isolate (block) valves
between the process ports and transmitter will be open
and the equalize valve will be closed.
Installation
"Flange bolts" on page 37
"Sensor trim overview" on page
for complete bolt installation information and torque values. When
71.
H
Drain/Vent
valve
Equalize
(closed)
Isolate
(open)
Process
Installation
May 2017
L
Drain/Vent
valve
Isolate
(open)
53