Endress+Hauser Micropilot FMR53 - Page 24

Installation Micropilot FMR53, FMR54 HART
24 Endress+Hauser
Nozzle mounting
H
H
2
2
1
1
A0016821
 5 Nozzle height an diameter for the rod antenna (FMR53)
1 Inactive lengthof the antenna
2 Beam launched here
Antenna length 390 mm (15.4 in) 540 mm (21.3 in)
Nozzle height H < 100 mm (3.94 in) < 250 mm (9.84 in)
The inactive part (1) of the rod antenna must extend below the nozzle.
• For flanges with PTFE cladding: Observe the notes on the mounting of cladded flanges
→  22.
• Usually, the PTFE flange cladding also serves as a seal between the nozzle and the
device flange.
Threaded connection
• Tighten with the hexagonal nut only.
• Tool : 55 mm hexagonal wrench
• Maximum permissible torque:
– Thread PVDF: 35 Nm (26 lbf ft)
– Thread 316L: 60 Nm (44 lbf ft)