EchoSonic® is an ultrasonic liquid level transmitter produced by Flowline. It has a non-contact detection function and can detect liquid levels within a range of 9.8 feet (3 meters). It can be powered by a 4-20 mA loop.
This document provides a quick start overview for the Flowline EchoSonic LU27 Series ultrasonic sensor. It explains how to install the required WebCal software on a PC and connect the USB Key Fob (LI99-2001) to configure the device before mounting.
The sensor provides non-contact detection up to 9.8 feet, which is equivalent to 3 meters.
The supply voltage should never exceed 28 VDC.
Do not use a cable connecting the sensor to the Fob any longer than 15 feet.