Emerson Rosemount 3051S Reference Manual page 18

Rosemount 3051S ERS System
Process Connections
Figure 2-6. Sensor Module
Isolator Plate
2-10
The process connection size on a 3051S ERS Sensor flange is
Flange adapters with a
1
the D2 option. Use a plant-approved lubricant or sealant when making the
process connections.
Install and tighten all four flange bolts before applying pressure to avoid
leakage. When properly installed, the flange bolts will protrude through the top
of the sensor module Isolator Plate. See Figure 2-6. Do not attempt to loosen
or remove the flange bolts while the transmitter is in service.
To install adapters to a Coplanar flange, perform the following procedure:
1. Remove the flange bolts.
2. Leaving the flange in place, move the adapters into position with the
o-rings installed.
3. Attach the adapters and the Coplanar flange to the transmitter sensor
module assembly using the longer of the bolts supplied.
4. Tighten the bolts. Refer to Table 2-2 on page 2-9 for torque
specifications.
Refer to "Spare Parts" on page A-37 for the correct part number of the flange
adapter and o-rings designed for a Coplanar 3051S ERS sensor.
Use only the o-rings included with the flange adapter for the 3051S ERS sensor. Failure
to install proper fitting flange adapter o-rings may cause process leaks, which can result
in death or serious injury.
When removing flanges or adapters, visually inspect the PTFE o-rings.
Replace them if there are any signs of damage such as nicks or cuts. If
replacing o-rings, re-torque the flange bolts after installation to compensate
for seating of the PTFE o-ring.
/ -18 NPT to / -14 NPT connection are available with
1
4 2
Bolt
Sensor Module
Isolator Plate
Reference Manual
00809-0100-4804, Rev AA
January 2011
/ -18 NPT.
1
4
Coplanar Flange
Flange Adapters