Figure 3-16: Bolt Tightening Pattern
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.
3.5.2
Install Rosemount
™
304 Conventional Manifold
To install a Rosemount 304 Conventional Manifold to a Rosemount 3051 Transmitter:
About this task
See Safety messages for complete warning information.
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.
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.
3. Leak-check assembly to maximum pressure range of transmitter.
3.5.3
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.
Reference Manual
Installation
00809-0100-4803 October 2018
Emerson.com/Rosemount 93
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