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EchoSpan Ultrasonic Liquid Level Transmitter User Manual

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This document is the user manual for the Flowline EchoSpan® series of general-purpose ultrasonic liquid level transmitters, covering models LU80, LU81, LU83, and LU84. It provides specifications, configuration instructions, wiring diagrams, installation guidelines, and troubleshooting for the loop-powered 4-20 mA output devices.

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