EchoSonic® II LU23/27/28/29 Ultrasonic Level Transmitter Application The general purpose ultrasonic level transmitter provides continuous level measurement up to 32.8’ (10m) with a 4-20 mA signal output, and is configured via our free Webcal software. This non-contact liquid level sensor is ideally suited for corrosive, ultrapure, sticky or dirty liquids, and is broadly selected for bulk storage, day tank, lift station and process tank level applications. Offered in 4 measurement ranges from 9.8’ (3m) to 32.8’ (10m) DSP auto adaptive filters enable plug and play operation optimizing signal output filtering and obstacle recognition measure open chan- Configuration is fast and easy via WebCal software and USB adapter discharged from rivers, Narrow 2” or 3” beam width for applications with limited measurement space Short 4” or 8” dead band maximizes the measureable filling capacity of the tank PVDF transducer and NEMA 4X polycarbonate enclosure for corrosive liquids Automatic temperature compensation for accurate measurement sors are often used to nel water flow thats streams, creeks, lakes EchoSonic II level sensor is installed on the upstream side of a weir. The non-contact sensor measures the gravity-fed, liquid surface height as it passes through the V-notch, and provides a continuous 4-20 mA signal output. The PLC converts level height into flow volume with rate, totalization and data-logging functions for wastewater treatment and environmental reporting. Compatible Products DataLoop™ Level Indicator Level Controller Multi-Tank Level Controller Level Controller © 2010 Flowline Inc. • 10500 Humbolt Street Los Alamitos, CA 90720 • 562.598.3015

EchoSonic® II LU23/27/28/29 Ultrasonic Level Transmitter Dead band: Beam width: Configuration: Memory: Supply voltage: Consumption: Loop resistance: Signal output: Signal invert: Signal fail-safe: Non-volatile 24 VDC (loop) 0.5W 500 ohms @ 24 VDC 4-20 mA, two-wire 4-20 mA or 20-4 mA 4 mA, 20 mA, 21 mA, 22 mA or hold last The level sensor is configurable via our free WebCal PC software and Fob USB adapter. The sensors are offered with and without Fobs. Fobs are universal and can be used to configure any WebCal compatible product. Download your free copy of WebCal in English or Chinese at www.flowline.com/webcal.php....