Fisher-Rosemount 3095FT, Manual

Page: 108 / 184

Rosemount Model 3095FT HART Flow Transmitter
5-10
DISASSEMBLY
PROCEDURE 1. Read the following information carefully before disassembling a
transmitter. General information concerning the process sensor
body and electrical housing follow. Figure 2-3 on Page 2-3 shows
an exploded view of the transmitter.
NOTE
Transmitters should not be left in service once they have been
determined to be inoperable.
Be aware of the following:
• The process flange can be detached by removing the four flange
bolts and the two alignment screws that secure it.
• Isolating diaphragms may be cleaned with a soft rag, mild
cleaning solution, and clear water rinse.
• The flange adapters and process flange may be rotated or
reversed for mounting convenience.
• Whenever removing the process flange or flange adapters,
visually inspect the Teflon O-rings. Replace the O-rings if they
show any signs of damage, such as nicks or cuts. If they are
undamaged, they may be reused.
• If the teflon sensor module O-rings have been replaced, the flange
bolts should be re-torqued after installation to compensate for
cold flow.
Explosions can result in death or serious injury.
Do not remove the instrument cover in explosive
environments.
Process Sensor Body
Process should be isolated from the transmitter and vented
before the transmitter is removed from service for
disassembly.
To prevent damage which may lead to inaccurate
measurements, do not scratch, puncture, or depress the
isolating diaphragms.
To prevent damage which may lead to inaccurate
measurements, do not use any chlorine or acid solutions to
clean the diaphragms.