Emerson Rosemount 5408 Reference Manual page 65

5.
6.
7.
Rosemount 5408 and 5408:SIS Level Transmitters
Gradually tighten the M8 screws.
Remove the circular level.
Mount the transmitter head.
Align the marking on the sensor module with the air purge connection.
Torque 65 in-lb (7 N-m)
H6 mm
Mechanical Installation
55