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Compact Ultrasonic Level Sensor LU-150/180

Compact Ultrasonic Level Sensor LU-150/180

Compact Ultrasonic Level Sensor LU-150/180

Product catalog summary
System Details
The Compact Ultrasonic Level Sensor LU-180 (Ex) offers contactless measurement suitable for liquids, sludges, or bulk materials. It is maintenance-free and wear-resistant due to the absence of mechanical parts. The sensor is temperature-compensated and allows for easy calibration, with a measuring span of 0.25 to 5 meters.

Operating Principle
The sensor transmits ultrasonic pulses that reflect off the medium's surface. The time taken for the signal to return is measured to determine the distance between the sensor and the medium surface. A microprocessor evaluates these signals to measure the filling level, compensating for temperature-induced changes in sound speed. The integrated software filters and evaluates useful echoes even under challenging conditions, allowing reliable measurements from 250mm before the sensor.

Technical Specifications
- Protection: IP 68
- Voltage Supply: 12...30 V DC / 0.1A peak
- Power Consumption: Max. 0.75 W (25 mA at 24 V DC)
- Measuring Range: 0.25...5.0 m
- Frequency: 54 kHz
- Output: 4...20 mA
- Max. Burden: 600 W at 24 V DC
- Measuring Accuracy: ± 0.25% of measuring range in air
- Resolution: 3 mm
- Operating Temperature: –20...+60 °C
- Aperture Angle: 12°
- Display: 3-digit LCD
- Process Connection: G 2" (BSPP) EN 10226 PVDF
- Materials: Polybutylenterephthalat PBT, PVDF-Copolymers
- Weight: 1.3 kg
- Cable Inlet: M 20 x 1.5

Installation Guidelines
The sensor should be installed to allow unhindered sound travel perpendicular to the material surface. A minimum free space of 250 mm must be maintained between the sensor's lower edge and the maximum expected filling level. It should be positioned away from obstructions like ladders, pipes, or thick weld seams.

System Components
The system includes the ultrasonic level sensor and a display unit (AD-310 or AD-313).
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Catalog excerpts

Compact Ultrasonic Level Sensor LU-150/180-1

TECHNIK FÜR SICHERHEIT UND UMWELT SAFETY AND ENVIRONMENTAL TECHNOLOGY Compact Ultrasonic Level Sensor Der Ultraschall- Füllstandssensor sendet in schneller Folge Ultraschallimpulse aus, die vom Medium reflektiert werden. Die Zeitspanne vom Aussenden bis zum Empfang des reflektierten Signals wird exakt erfasst. Die Impulslaufzeit ist direkt proportional zu der Distanz zwischen Füllstandssensor und Medienoberfläche. Ein Mikroprozessor wertet die Echosignale aus und ermittelt den Füllstand. Temperatur bedingte Ä n d e r u n g e n d e r Schallgeschwindigkeit werden kompensiert. Die integrierte Software ermöglicht selbst unter ungünstigen Bedingungen das Nutzecho heraus zu filtern und auszuwerten. Im Nahbereich kann daher ab 250mm vor dem Sensor sicher gemessen werden. The ultrasonic level sensor transmits ultrasonic pulses in quick succession which are reflected from the medium's surface. The time interval from transmission to reception of the reflected signal is measured exactly. The impulse running time is directly proportional to the distance between the level sensor and the med i u m surface. A microprocessor evaluates the echo signals and measures the filling level. Changes in the ultrasonic speed caused by changing temperatures are compensated. The integrated software enables the useful echo to be filtered out and evaluated, even under unfavourable conditions. Thus it is possible to make reliable measurements in the vicinity, up to a point just 250mm before the sensor. Die Elektronik ist in einem w a s s e r g eschützen Kunststoffgehäuse. Das Gehäuse ist resistent gegen korrosive Stoffe und verträgt starke Temperaturschwankungen. E-Mail: [email protected] Web: www.fluidio.de The electronics are accomodated in a waterproof plastic casing. The casing is resistant to corrosive materials and can tolerate high temperature fluctuations.  Für Flüssigkeiten, Schlämme oder Schüttgut  For liquids, sludges or bulk materieal  Wartungsfrei- und verschleißfrei (keine Mechanik)  Maintenance-free and wearresistant (no mechanical parts)  Measuring span 0,25 to 5 meters System Details Das Messsystem besteht aus einem Ultraschall- Füllstandssensor und einem Anzeigegerät AD-310 oder AD-313 (siehe Rubrik 13). The measuring system consists of the ultrasonic level sensor and a display AD-310 or AD-313 (see section 13). ULTRASCHALL • ULTRASONIC SENSING FLUID EXCELLENCE.

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Compact Ultrasonic Level Sensor LU-150/180-2

Technical Data Technische Daten Schutzart EN 60529 Spannungsversorgung Leistungsaufnahme Eingang Messbereich Frequenz Ausgang Max. Bürde Messspanne IP 68 12...30 V DC / 0.1A Spitze Max. 0,75 W (25 mA bei 24 V DC) 0,25...5,0 m 54 kHz 4...20 mA 600 W bei 24 V DC Proportional oder umgekehrt proportional Messbare Materialien Flüssigkeiten, Schlämme, Schuttgüter Messgenauigkeit Messabweichung Auflösung Temperaturkompensation Echoverarbeitung Arbeitstemperatur Öffnungswinkel Arbeitsdruck Anzeige Prozessanschluss Gehäusematerialien Elektronik Sensor / Gewinde Gewicht Kabeleinführung ± 0,25 % vom Messbereich...

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