Emerson Rosemount 5408 Reference Manual page 30

Mechanical installation
March 2023
3.4.3 Replace the transmitter head nut
When mounting on a legacy Rosemount 5402 antenna, the transmitter head nut must be
changed from size M50 to M52.
Prerequisites
Applies only to transmitters ordered with the option code A1.
Procedure
1. Remove the stop ring using a flat head screwdriver.
2. Replace the transmitter head nut.
3. Mount the stop ring.
Postrequisites
Ensure to set the Antenna Type to Legacy (Rosemount 5402), and then set the User Defined
Antenna Options parameters.
30
Tip
Wear gloves to increase grip when using the tool!
M50
Use the new stop ring supplied with the kit.
M52
Reference Manual
00809-0100-4408
Reference Manual