Emerson Rosemount 2051 Reference Manual page 51

Reference Manual
00809-0100-4107
3. If you have replaced the PTFE sensor module O-rings, re-tighten the flange bolts
3.5.2 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.
3.5.3 Install Rosemount 304 Conventional Manifold
Procedure
1. Align the conventional manifold with the transmitter flange. Use the four manifold
2. Finger tighten the bolts; then tighten the bolts incrementally in a cross pattern to
3. Leak-check assembly to maximum pressure range of transmitter.
3.5.4 Integral manifold operation
Three-valve configuration shown.
In normal operation the two isolate valves between the process and instrument ports will
be open and the equalizing valve(s) will be closed.
To zero the 2051, close the isolate valve to the low pressure (downstream side) of the
transmitter first.
Reference Manual
See Flange bolts for complete bolt installation information and torque values. When
fully tightened, the bolts should extend through the top of the sensor
module housing.
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.
bolts for alignment.
final torque value.
See Flange bolts for complete bolt installation information and torque values.When
fully tightened, the bolts should extend through the top of the sensor module
housing.
Drain/Vent
valve
Isolate
(open)
H L
Drain/Vent
valve
Equalize
(closed)
Isolate
(open)
Process
Hardware Installation
September 2020
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