45
Reference Manual
00809-0100-4107, Rev BA
Section 3: Hardware Installation
April 2013
Whenever you remove flanges or adapters, visually inspect the PTFE o-rings. Replace with o-ring
designed for Rosemount transmitter if there are any signs of damage, such as nicks or cuts.
Undamaged o-rings may be reused. If you replace the o-rings, retorque the flange bolts after
installation to compensate for cold flow. Refer to the process sensor body reassembly procedure
in
Note
PTFE O-rings should be replaced if the flange adapter is removed.
3.4.4
Inline process connection
Inline gage transmitter orientation
The low side pressure port on the inline gage transmitter is located in the neck of the
transmitter, behind the housing. The vent path is 360 degrees around the transmitter between
the housing and sensor (See
Keep the vent path free of any obstruction, such as paint, dust, and lubrication by mounting the
transmitter so that the process can drain away.
Figure 3-11. Inline gage low side pressure port
A. Low side pressure port (atmospheric reference)
Interfering or blocking the atmospheric reference port will cause the transmitter to output
erroneous pressure values.
A