Mounting The Device - Endress+Hauser HART Levelflex FMP56 Brief Operating Instructions

Mounting
NOTICE
Welding can damage the main electronics module.
‣
Before welding: Ground the probe rod and remove the electronics.
4.1.3 Shortening the probe
See Operating Instructions.
4.2

Mounting the device

4.2.1 Mounting devices with a threaded connection
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":
• Thread 1-1/2":
• 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.
4.2.2 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.
12
36 mm
55 mm
Levelflex FMP56, FMP57 HART
Endress+Hauser
A0012528