Endress+Hauser Micropilot FMR53 - Page 41

Micropilot FMR53, FMR54
Endress+Hauser 41
Information concerning nozzles
H
H
2
2
1
1
A0016821
 19 Nozzle height for rod antenna (FMR53)
1 Antenna inactive length
2 Beam exit from here
Length of antenna 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 project out of the nozzle.
• For flanges with PTFE cladding: Observe the instructions for mounting cladded flanges
• The PTFE flange cladding normally acts simultaneously as a seal between the nozzle and the
device flange
Information concerning threaded connections
• When screwing in, turn by the hex bolt only.
• Tool: open-ended wrench 55 mm
• Maximum permissible torque:
• PVDF thread: 35 Nm (26 lbf ft)
• 316L thread: 60 Nm (44 lbf ft)
Horn antenna (FMR54)
Alignment
• Align the antenna so that it is perpendicular to the product surface.
• A marking is provided on the flange (at a point between the flange holes) to aid the alignment.
This marking must be aligned towards the tank wall as much as possible.