ABB LM80 Level Measurement System

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                                                                                                                              • ABB LM80 Level Measurement System

                                                                                                                                Product Overview

                                                                                                                                The ABB LM80 is a Laser Level Measurement System (Laser Level Transmitter) designed for continuous, non-contact measurement of level, distance, and position in industrial processes. It uses advanced pulsed laser technology to accurately measure materials without physical contact, making it suitable for harsh environments involving dust, solids, and opaque liquids.

                                                                                                                                The LM80 is commonly used for measuring the level of bulk solids, powders, granules, and opaque liquids in silos, tanks, crushers, and process equipment. It provides accurate measurement over long distances with minimal maintenance requirements.

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                                                                                                                                Main Specifications

                                                                                                                                • Manufacturer: ABB
                                                                                                                                • Model: LM80
                                                                                                                                • Product Type:
                                                                                                                                  • Laser Level Transmitter
                                                                                                                                  • Non-contact Level Measurement System
                                                                                                                                • Measurement Technology:
                                                                                                                                  • Pulsed laser time-of-flight measurement

                                                                                                                                Measurement Performance

                                                                                                                                • Level Measurement Range:
                                                                                                                                  • Up to 100 m (330 ft)
                                                                                                                                • Position Measurement Range:
                                                                                                                                  • Up to 150 m (500 ft)
                                                                                                                                • Measurement Accuracy:
                                                                                                                                  • ±30 mm
                                                                                                                                • Resolution:
                                                                                                                                  • ±10 mm
                                                                                                                                • Measurement Principle:
                                                                                                                                  • Laser pulse reflection / time-of-flight calculation
                                                                                                                                • Measurement Speed:
                                                                                                                                  • Up to 3 readings per second

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                                                                                                                                Electrical Specifications

                                                                                                                                • Output Signal:
                                                                                                                                  • 4–20 mA analog output
                                                                                                                                • Communication:
                                                                                                                                  • HART compatible (depending on configuration)
                                                                                                                                • Power Supply:
                                                                                                                                  • 24 VDC typical
                                                                                                                                • Protection:
                                                                                                                                  • Industrial aluminum housing
                                                                                                                                • Installation:
                                                                                                                                  • Flange or bracket mounting

                                                                                                                                 

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                                                                                                                                Features & Advantages

                                                                                                                                • Non-contact measurement — no mechanical wear or contamination
                                                                                                                                • Long measuring distance — suitable for tall silos and large vessels
                                                                                                                                • High accuracy — reliable level monitoring in demanding applications
                                                                                                                                • Narrow laser beam — reduces false echoes caused by internal structures
                                                                                                                                • No calibration required — easy installation and setup
                                                                                                                                • Built-in laser pointer — simplifies alignment
                                                                                                                                • Dust-resistant measurement technology
                                                                                                                                • Maintenance-free operation
                                                                                                                                • Supports hazardous area versions with CSA, ATEX, and IECEx certifications (depending on configuration)

                                                                                                                                 

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                                                                                                                                Applications

                                                                                                                                • Cement and mining industries
                                                                                                                                • Bulk material storage silos
                                                                                                                                • Grain and food processing
                                                                                                                                • Chemical processing plants
                                                                                                                                • Power generation facilities
                                                                                                                                • Crusher and hopper level monitoring
                                                                                                                                • Powder and pellet measurement
                                                                                                                                • Tank and vessel level monitoring

                                                                                                                                 

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                                                                                                                                Suitable Measuring Media

                                                                                                                                • Powder materials
                                                                                                                                • Granular materials
                                                                                                                                • Coal
                                                                                                                                • Cement
                                                                                                                                • Limestone
                                                                                                                                • Plastic pellets
                                                                                                                                • Minerals
                                                                                                                                • Opaque liquids

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                                                                                                                                Important Notes

                                                                                                                                • Ensure the laser beam has a clear path to the measuring surface.
                                                                                                                                • Heavy dust, steam, or condensation may affect measurement performance.
                                                                                                                                • Verify the required hazardous area certification before installation.
                                                                                                                                • Confirm output configuration (4–20 mA / communication options) before replacement.
                                                                                                                                • Proper alignment is required for maximum accuracy. 

The structure and details of the product：