Beam Spreading; Correct Installation In Mounting Nozzle; Installation Using Easy Aimer Lr - Siemens sitrans LR 400 Instruction Manual And Users Manual

Beam Spreading

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.

Installation using Easy Aimer LR

0.38"
(10 mm)
long horn 9.3"(235 mm)
short horn 7.4"(188 mm)
Graphic
labels to be
updated
7ML19985FH04
S I T R A N S L R 4 0 0
Keep the emission cone
(9° or 13° depending on
configuration), free of
obstructions.
short horn antenna
13°
long horn antenna
9°
SITRANS LR 400 – INSTRUCTION MANUAL
Updated graphic
required showing 2",
3" and 4" horn
top clamping plate (upper socket)
bottom clamping plate (lower socket)
customer gasket [recommended
thickness 1.5 to 1.8 mm (0.06 to
0.07")], as required
customer mounting plate with at
least ø 4" (102 mm) central
opening, as required
30°
max.
SITRANS LR 400
10 mm
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