Version Size Beam angle
LR530 ≥ DN 25 10°
≥ DN 50, 2" 6°
≥ DN 80, 3" 3°
LR580 DN 80, 3" 3°
DN 100, 4"
DN 150, 6"
5.4.1 Nozzle mounting
F
or nozzle mounting, the nozzle should be as short as possible and its end rounded. This reduces
false re󹪞ections from the nozzle.
With threaded connection, the antenna end should protrude at least 5 mm (0.2 in) out of the
nozzle.
If the re󹪞ective properties of the medium are good, you can mount the device on nozzles
longer than the antenna. The nozzle end should be smooth, burr-free, and rounded, if
possible.
When mounting on longer nozzles, we recommend carrying out an auto false echo
suppression. Recommended values for nozzles heights are found in the following illustration
or the tables. The values come from typical applications. Deviating from the proposed
dimensions (using longer nozzles, for example) is possible. However, local conditions must
be taken into account.
LR510 LR530 LR550 LR580
LR510 threaded connection
Nozzle diameter "A" Nozzle height "B"
40 mm 1 1/2" ≤ 150î™ m ≤ 5.9"
50 mm 2" ≤ 200 mm ≤ 7.9"
80 mm 3" ≤ 300 mm ≤ 11.8"
Installing/mounting
5.4î™ Nozzle mounting
SITRANS LR500 series with mA/HART
42 Operating Instructions, 03/2024, A5E51099898-AA
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