Technical information

Ultrasonic Level Sensor LUC-M**

Installation conditions

DOCT-0805F 01/2010 185414

Blocking distance,

nozzle installation

Install the LUC-M** at a height so that the blocking distance BD is not undershot, even at maximum

fill level. Use a pipe nozzle if you cannot maintain the blocking distance in any other way. The

interior of the nozzle must be smooth and may not contain any edges or welded joints. In particular,

there should be no burr on the inside of the tank side nozzle end. Note the specified limits for nozzle

diameter and length. To minimise disturbing factors, we recommend an angled socket edge

(ideally 45°).

BD: blocking distance; SD: safety distance; E: empty calibration; F: full calibration (span);

D: nozzle diameter; L: nozzle length

Caution!

If the blocking distance is undershot, it may cause device malfunction.

Note!

In order to prevent the level from entering the blocking distance, you can specify a safety distance

(SD). If the level is within this safety distance, the LUC-M** outputs a warning or alarm message.

Maximum nozzle length L

Nozzle diameter D LUC-M10 LUC-M20 LUC-M30 LUC-M40

DN50/2" 80 mm

DN80/3" 240 mm 240 mm 250 mm

DN100/4" 300 mm 300 mm 300 mm 300 mm

DN150/6" 400 mm 400 mm 300 mm 400 mm

DN200/8" 400 mm 400 mm 300 mm 400 mm

DN250/10" 400 mm 400 mm 300 mm 400 mm

DN300/12" 400 mm 400 mm 300 mm 400 mm

Emitting angle α 11° 11° 6° 9°

Blocking distance 0.25 m 0.35 m 0.6 m 0.4 m

Max. range in liquids 5 m 8 m 15 m 10 m

Max. range in solids 2 m 3,5 m 7 m 5 m

LUC-M10/20

LUC-M30

LUC-M40