Endress+Hauser Micropilot FMR20, Руководство по эксплуатации, Страница: 18 / 102

Installation Micropilot FMR20 HART
18 Hauser
80 mm (3 in) antenna with or without a flooding protection tube, α 12 °
W = D × 0.21
5.1.6 Measurement in plastic vessels
3
1
2
A0029540
 9 Measurement in a plastic vessel with a metallic, interfering installation outside of the vessel
1 Pipe, tubing
2 Ladder
3 Grate, railing
If the outer wall of the vessel is made of a non-conductive material (e.g. GFR),
microwaves can also be reflected by interfering installations outside of the vessel.
Optimization options
• Adjustable flange seal: The device can be aligned with the product surface using the
adjustable flange seal.
• Alignment unit:
In the case of devices with an alignment unit, the sensor can be optimally aligned with
the conditions at the vessel. The maximum angle β is ± 15 °.
The purpose of sensor alignment is primarily to:
• Prevent interference reflections
• Increase the maximum possible measuring range in conical outlets
• Please ensure there are no interfering installations made of a conductive material in the
signal beam (see the beam angle section for information on calculating the beamwidth
diameter).
For more information: contact the Hauser sales organization.
5.1.7 Weather protection cover
A weather protection cover is recommended for outdoor use.
The weather protection cover can be ordered as an accessory or together with the device
via the product structure "Accessory enclosed".