Omega-vehicle-security LVUN-600 Manuel d'utilisateur télécharger pdf (Page 5)

SYSTEM DESCRIPTIONS

PRINCIPLES OF OPERATION

The LVUN-600 Series operates using ultrasonic sound wave propagation. Ultrasonic

sound waves are greatly attenuated when transmitted through air. Conversely,

when liquid is present, transmission of the sound waves is greatly enhanced. The

electronic control unit, either integral or remote to the sensor, generates electrical

signals that are converted to bursts of ultrasonic energy at the sensor. The ultra-

sonic bursts are transmitted across the liquid sensing gap of the sensor. Upon

receipt of a valid signal at the receiver, the solid state electronics generate a “data

enable” condition indicating liquid is present. This signal energizes a relay and

provides an output condition.

PRINCIPLES OF OPERATION

GENERAL DESCRIPTION

The LVUN-600 Series Liquid Level Detection system is an ideal, low cost ultrasonic

liquid level detection system for many applications. It operates in a broad spec-

trum of viscous to light liquids.

For Ultrasonic Point Level Switches LVUN-600 Series

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Omega-vehicle-security LVUN-600 Manuel d'utilisateur Page 5