Micropilot FMR66B HART
Hauser
V. 1, Rev. 2, 26-07-2022
17
Metal deflector plates, installed at an angle to scatter the radar signals, help prevent interference
echoes.
Vertical alignment of antenna axis
Align the antenna so that it is perpendicular to the product surface.
The maximum reach of the antenna can be reduced, or additional interference signals can
occur, if the antenna is not installed perpendicular to the product.
Radial alignment of the antenna
Based on the directional characteristic, radial alignment of the antenna is not necessary.
Installation instructions
Encapsulated antenna, PVDF 40 mm (1.57 in)
Information about the mounting nozzle
The maximum nozzle length
H
max
depends on the nozzle diameter
D
.
Maximum nozzle length H
max
as a function of the nozzle diameter D
D
H
max
øD
H
max
50 to 80 mm (2 to 3.2 in)
600 mm (24 in)
80 to 100 mm (3.2 to 4 in)
1
000 mm (24 in)
100 to 150 mm (4 to 6 in)
1
250 mm (50 in)
≥ 150 mm (6 in)
1
850 mm (74 in)
In the case of longer nozzles, reduced measuring performance must be expected.
Please note the following:
• The end of the nozzle must be smooth and free from burrs.
• The edge of the nozzle should be rounded.
• Mapping must be performed.
• Please contact the manufacturer's support department for applications with nozzles that are
higher than indicated in the table.
PTFE Drip-off antenna 50 mm (2 in)
Information about the mounting nozzle
The maximum nozzle length
H
max
depends on the nozzle diameter
D
.
Maximum nozzle length H
max
as a function of the nozzle diameter D
D
H
max
H
øD
max
50 to 80 mm (2 to 3.2 in)
750 mm (30 in)
80 to 100 mm (3.2 to 4 in)
1
150 mm (46 in)
