Mounting
Levelflex FMP51, FMP52, FMP54 PROFIBUS PA
14
Hauser
5.2
Mounting the device
5.2.1
Mounting devices with a threaded connection
A0012528
Screw the device with the threaded connection into a sleeve or flange and then secure it to the
process vessel via the sleeve/flange.
• When screwing into place, turn by the hex bolt only:
• Thread 3/4":
36 mm
• Thread 1-1/2":
55 mm
• Maximum permissible tightening torque:
• Thread 3/4": 45 Nm
• Thread 1-1/2": 450 Nm
• Recommended torque when using the supplied aramid fiber seal and a process
pressure of 40 bar (only FMP51, no seal is included with FMP54):
• Thread 3/4": 25 Nm
• Thread 1-1/2": 140 Nm
• When installing in metal vessels, ensure there is good metal contact between the
process connection and the vessel.
5.2.2
Mounting devices with a flange
If a seal is used to mount the device, use uncoated metal screws to ensure good electrical
contact between the process flange and the probe flange.
5.2.3
Mounting rope probes
NOTICE
Electrostatic discharge can damage the electronics.
‣
Ground the housing before lowering the rope probe into the vessel.
