Mounting
Micropilot S FMR533 4 to 20 mA HART
10
Hauser
• Tank diameter and height should be at least dimensioned such that a reflection of the radar
signal on both sides of the tank can be ruled out ("Beam angle",
• In case of media with a low dielectric constant (media groups A and B), the tank bottom can
be visible through the medium at low levels (low height
C
). Reduced accuracy has to be
expected in this range. If this is not acceptable, we recommend positioning the zero point at
a distance
C
(see Fig.) above the tank bottom in these applications.
• In applications with
parabolic
antenna, especially for media with low dielectric constants
(see BA00209F/00/EN, Chapter "Measuring range") the end of the measuring range should
not be closer than 1 m (3.3 ft) to the flange (see
BD
in figure).
• The safety distance (
SD
) is set to 0,5 m (20") by default and generating an alarm.
L00-FMR533-17-00-00-xx-001
Behaviour if measuringrange is exceeded
The behaviour in case of the measuring range being exceeded can be freely set:
The default setting is a current of 22 mA and the generation of a digital warning (E681).
reference: flange / BD (see picture)
reference: antenna tip (see picture)
Blocking distance
Safety distance
recommended additional settings
BD [m (ft)]
SD [m (ft)]
A [mm (in)]
B [m (ft)]
C [mm (in)]
1 (3.3)
0,5 (1.6)
1000 (40)
0,5 (1.64)
150 to 300
(6 to 12)
BD
SD
A
B
C
100%
0%
