Endress+Hauser Micropilot FMR53 - Installation in Bypass

Installation Micropilot FMR53, FMR54 HART
26 Endress+Hauser
H
1
øD
A0016822
 6 Nozzle height and diameter for the horn antenna (FMR54)
1 Mounting nozzle
Antenna
1)
Nozzle diameter D Maximum nozzle height H
max
2)
BE: 150mm/6" 146 mm (5.75 in) 185 mm (7.28 in)
BF: 200mm/8" 191 mm (7.52 in) 268 mm (10.6 in)
BG: 250mm/10" 241 mm (9.49 in) 360 mm (14.2 in)
1) Feature 070 of the product structure; the antenna versions BC (Horn 80mm/3") and BD (Horn 100mm/4") should
not be mounted directly into the tank. They are only suited for bypass and stilling well applications.
2) valid for antennas without antenna extension
Measurement from the outside through plastic walls
• Dielectric constant of the medium: ε
r
> 10
• If possible use the 250 mm (10 in) antenna.
• The distance between the lower edge of the antenna and the tank should be about
100 mm (4 in).
• If possible, avoid mounting location where condensation or build-up might occur.
• In case of outdoor mounting, the space between antenna and vessel has to be protected
from the elements.
• Do not mount any potential reflectors (e.g. pipes) outside the tank in the signal beam.
Suitable thickness of the tank ceiling
Penetrated material PE PTFE PP Plexiglas
DK / 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)