Emerson Rosemount 5408 Reference Manual page 133

6.
7.
Rosemount 5408 and 5408:SIS Level Transmitters
Loosen the nut that connects the transmitter head to the process seal.
Carefully lift the transmitter head.
Do not attempt to loosen it by rotating the transmitter head. If it is stuck, then it
may need to be replaced with a new process connection and transmitter head, by
following all plant safety rules and procedures.
60 mm
Service and Troubleshooting
123