Endress+Hauser FOUNDATION Fieldbus Micropilot FMR56 Brief Operating Instructions page 16

Mounting
Information concerning threaded connections
For devices with a threaded connection, it may be necessary - depending on the antenna
size - to first disassemble the horn and then mount it again after screwing in the device.
• Tighten by the hexagonal nut only.
• Tool: open-ended wrench 60 mm
• Maximum permissible torque: 60 Nm (44 lbf ft)
5.6.4 Parabolic antenna (FMR57)
Alignment
Ideally, the parabolic antenna should be installed vertically. To avoid interference reflections
or for optimum alignment in the vessel, the Micropilot can be swiveled by 15 °° in all directions
using the optional alignment unit.
Information concerning nozzles
• Case 1: Ideally, the parabolic antenna should project fully out of the nozzle (1). Particularly
when using the alignment device, it is important to ensure that the parabolic reflector is
projecting out of the nozzle/ceiling so as not to inhibit alignment.
• Case 2: For applications with higher nozzles, it may be necessary to install the parabolic
antenna completely in the nozzle (2).
The maximum height of the nozzle ( H
not be greater than 500 mm (19.7 in). Interfering edges within the nozzle should be
avoided.
1
 5 Nozzle mounting of Micropilot FMR57 with parabolic antenna
1 Antenna completely projects out of the nozzle
2 Antenna completely inside the nozzle
16
max
øD
Micropilot FMR56, FMR57 FOUNDATION Fieldbus
) to the surface of the parabolic antenna should
2
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Endress+Hauser