Emerson Rosemount 3051 CF Series, Reference Manual

Page: 73 / 146

When fully tightened, the bolts should extend through the top of the sensor
module housing.
3. If you have replaced the PTFE sensor module O-rings, re-tighten the flange bolts
after installation to compensate for cold flow of the O-rings.
3.6.2 Install Rosemount 306 integral manifold
The Rosemount 306 Manifold is for use only with in-line pressure transmitters such as the
Rosemount 3051T and 2051T.
Assemble the Rosemount 306 manifold to the Rosemount 3051T or 2051T In-Line
Transmitters with a thread sealant.
3.6.3 Install Rosemount 304 Conventional Manifold
Procedure
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.
When fully tightened, the bolts should extend through the top of the sensor
module housing.
3. Leak-check assembly to maximum pressure range of transmitter.
3.6.4 Manifold operation
WARNING
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
Sensor trim overview .
Coplanar transmitters
Operate three and five-valve manifolds
Performing zero trim at static line pressure
In normal operation, the two isolate (block) valves between the process ports and the
transmitter will be open, and the equalize valve will be closed.
Reference Manual Hardware installation
00809-0100-4774 July 2020
Reference Manual 73