Principle Of Operation - Vega FiberFlex LFXG-H Operating Instructions Manual

Detector with gen2000 electronics for level measurement

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Introduction

Pulp and Paper

• Liquors

• Bleach plant chemicals

• Coating chemical storage

• Lime mud

• Wastewater treatment tanks

Chemical

• Low pressure/low vapor chemical storage

• Settlers

• Surge tanks

Food and beverage

• Food slurries

• Pastes

• Syrups

• Dough level

• Intermediate batch storage

Water and wastewater

• Settling/aeration tanks

• Clarifiers

• Sludge holding tanks

• Wet wells

Principle of operation

The gauge receives a shaped or collimated beam of radiation from the

source holder through the process material. The material in the vessel

shields part of the detector from exposure to the radiation field. As the

process material level decreases, the detector senses more radiation, and

vice versa.

Calibrating the gauge associates the detector readings (or counts) with the

level of the material in engineering units. The output range of the gauge is a

4 ... 20 mA current loop signal, in proportion to the level of the process.

LFXG-H Installation and Operation Guide

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