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Micropilot FMR53, FMR54 FOUNDATION Fieldbus
Mounting
Hauser
15
H
1
øD
A0016822
3
Nozzle height and diameter for horn antenna
1
Mounting nozzle
Antenna
Ø
D
Maximum nozzle height
H
max
(Antenna without antenna extension)
150mm/6"
146 mm (5.75 in)
185 mm (7.28 in)
200mm/8"
191 mm (7.52 in)
268 mm (10.6 in)
250mm/10"
241 mm (9.49 in)
360 mm (14.2 in)
Antenna versions < 150mm/6" are not suitable for free-space installation in the tank.
They should only be used in bypasses or stilling wells.
Measurement from the outside through plastic walls
• Dielectric constant of the medium: ε
r
> 10
• Use an antenna 250 mm (10 in) if possible.
• The distance from the tip of the antenna to the tank should be approx. 100 mm (4 in).
• If possible, avoid installation positions in which condensate or buildup can form between
the antenna and the vessel.
• In the case of outdoor installations, ensure that the area between the antenna and the tank
is protected from the weather.
• Do not install any fittings or attachments between the antenna and the tank that could
reflect the signal.
Suitable thickness of the tank ceiling:
Penetrated material
PE
PTFE
PP
Plexiglass
ε
r
2.3
2.1
2.3
3.1
Optimum thickness
16 mm (0.65 in)
17 mm (0.68 in)
16 mm (0.65 in)
14 mm (0.56 in)
Содержание FOUNDATION Fieldbus Micropilot FMR53
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