Emerson Rosemount 3051 Reference Manual page 47

Reference Manual
00809-0100-4007
vibration and mechanical shock and does not have external contact with corrosive
materials.
3.3.3 Mechanical considerations
Steam service
For steam service or for applications with process temperatures greater than the limits of
the transmitter, do not blow down impulse piping through the transmitter. Flush lines
with the blocking valves closed and refill lines with water before resuming measurement.
Refer to
Side mounted
When the transmitter is mounted on its side, position the coplanar flange to ensure proper
venting or draining. Mount the flange as shown in
connections on the bottom for gas service and on the top for liquid service.
3.3.4 Draft range considerations
Installation
For the Rosemount
transmitter with the isolators parallel to the ground.
See Figure 3-1
Installing the transmitter in this way reduces oil head effect.
Tilting of the transmitter may cause a zero shift in the transmitter output, but you can
eliminate this by performing a trim procedure.
Figure 3-1: Draft Range Installation Example
A. Isolators
Reducing process noise
Rosemount
Increasing the damping will decrease output noise, but will further reduce response time.
Reference Manual
Figure 3-9 for correct mounting orientation.
™
3051CD0 draft range pressure transmitter, it is best to mount the
for a draft range installation example on a Rosemount 304 manifold.
™
3051CD0 draft transmitters are sensitive to small pressure changes.
Figure 3-9, keeping drain/vent
A
Hardware installation
August 2019
47