Beam Width; Correct Installation In Mounting Nozzle - Siemens Sitrans LR400 Instruction Manual
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Also See for Sitrans LR400:
- Quick start manual (114 pages) ,
- Instruction manual (109 pages) ,
- Instruction manual and users manual (106 pages)
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WARNING: For vessels with conical or parabolic tops, avoid
mounting the unit at the center.
echoes into the centre, giving false readings.
Parabolic or Conical
P
Beam Width
Correct Installation in Mounting Nozzle
The bottom edge of the antenna must project
into the vessel to avoid reflective interference
at the wall of the nozzle. Above flange size
DN 150/6", the antenna need not project beyond
the nozzle unless the radiation cone (the
extension of the antenna's angle) touches the
nozzle wall.
Page 16
SITRANS LR400 (7ML5421) – INSTRUCTION MANUAL
Flat
a
r a
b
o
l i c
is acceptable
is preferred
location
location
Keep the emission cone
(9° or 13° depending on
configuration), free of
obstructions.
short horn antenna
13°
long horn antenna
9°
The concavity of the top can focus
l
F
t
a
S I T RA N S L R 40 0
SITR AN S L R 4 0 0
SITRANS LR 400
10 mm
7ML19985FH06
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