Mounting
Micropilot M FMR 240 with PROFIBUS PA
14
E Hauser
3.3.2
Engineering hints
Orientation
•
Recommended distance (1) wall –
outer
edge
of nozzle: ~1/6 of tank diameter.
Nevertheless the device should not be
installed closer than 15 cm (6“) to the
tankwall.
•
Not in the centre (3), interference can
cause signal loss.
•
Not above the fill stream (4).
•
It is recommended to use a weather
protection cover (2) in order to protect
the transmitter from direct sun or rain.
Assembly and disassembly is simply
done by means of a tension clamp
(
→
Chap. 8 on Page 79).
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Tank installations
•
Avoid any installations (1), like limit
switches, temperature sensors, etc.,
inside the signal beam (refer to beam
angle see "Beam angle" on Page 15).
•
Symmetrical installations (2), i.e.
vacuum rings, heating coils, baffles,
etc., can also interfere with the
measurement.
Optimization options
•
Antenna size: the bigger the antenna,
the smaller the beam angle, the less
interference echoes.
•
Mapping: the measurement can be
optimized by means of electronic
suppression of interference echoes.
•
Antenna alignment: refer to "optimum
mounting position" (see Page 19/21/23/
25).
•
Stilling well: a stilling well respectively a
Wave Guide antenna can always be
used to avoid interference.
Please contact Hauser for
further information.
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