
LevelMaster 7100 User manual 2105835 Rev AA
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2 System
description
Overview
The Totalflow
®
LevelMaster is an Intelligent Digital Level Sensor and is designed for custody transfer accuracy in demanding
level measurement applications, including, but not limited to, oil, gas, water, wastewater, flood warning and chemical
applications. Figure 1 displays a typical LevelMaster installation.
The LevelMaster uses simple ASCII protocol for communications and, therefore, can be interfaced to nearly any host system.
When used in conjunction with ABB Totalflow host controllers (remote controllers or flow computers), a wide range of data
gathering and site automation applications are available.
Figure 1: Typical LevelMaster oil and water tank installation
The LevelMaster consists of a sensor that sits on the bottom and extends through the top of a vessel. A reducer bushing and
compression fitting can be provided for tanks with standard 3 inch or 4 inch diameter tank top ports. The LevelMaster can be
adapted to nearly any type of vessel. The sensor tube can be any length from 2 to 25 feet. A small junction box with a screw-on
cover sits atop the sensor tube. The junction box houses a small electronics board and is the termination point for the power and
communication wiring.
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