Pulsed Laser Technology: Employs high-speed laser pulses to measure distance with precision, even in challenging environments with moderate dust or debris.
No Beam Divergence: Eliminates false echoes from vessel walls or structures, ensuring accurate targeting of the material surface.
Reliability & Durability:
Wide Temperature Range: Operates from -40°C to +60°C, suitable for outdoor and extreme industrial settings.
Explosion-Proof Design: CSA, ATEX, and IECEx certifications enable use in hazardous areas.
User-Friendly Operation:
HART Protocol Support: Allows remote configuration and diagnostics via handheld devices or control systems.
Built-in Laser Pointer: Facilitates easy alignment in narrow or tall vessels.
Low Maintenance:
Self-Correcting Signal Processing: Adapts to changing conditions, reducing manual calibration needs.
Heated Optics (Optional): Prevents condensation in humid environments.
In Stock
Manufacturer: Modules Part number: LM80
Our extensive Modules catalogue, including
: LM80
, is available now for dispatch to the worldwide.
Brand: ABB
The ABB LM80 is a high-performance laser level transmitter designed for non-contact measurement of granular solids and opaque liquids in industrial and utility applications. Built on pulsed laser technology, the LM80 delivers accurate level, distance, and position measurements up to 100 meters (330 ft) for level applications and 150 meters (500 ft) for positioning. Its robust design and advanced signal processing make it ideal for extreme environments, including dusty, high-temperature, or corrosive conditions. The LM80 supports seamless integration with process control systems via 4-20 mA analog output and HART protocol, ensuring compatibility with legacy and modern automation setups.
2. Technical Specifications
Parameter
Specification
Measurement Range
100 m (level) / 150 m (positioning)
Resolution
10 mm (0.4″)
Accuracy
±25 mm (1″)
Beam Divergence
<0.3°
Communication
4-20 mA + HART protocol
Power Supply
24 V DC (±10%) or 110/220 V AC
Operating Temperature
-40°C to +60°C (-40°F to 140°F)
Enclosure Rating
IP67
Certifications
CSA, ATEX, IECEx (explosive atmospheres)
Mounting Options
ANSI/DIN flanges, tri-clover fittings
Material
Aluminum or stainless steel
ABB LM80
3. Key Advantages & Features
Non-Contact Measurement:
Pulsed Laser Technology: Employs high-speed laser pulses to measure distance with precision, even in challenging environments with moderate dust or debris.
No Beam Divergence: Eliminates false echoes from vessel walls or structures, ensuring accurate targeting of the material surface.
Reliability & Durability:
Wide Temperature Range: Operates from -40°C to +60°C, suitable for outdoor and extreme industrial settings.
Explosion-Proof Design: CSA, ATEX, and IECEx certifications enable use in hazardous areas.
User-Friendly Operation:
HART Protocol Support: Allows remote configuration and diagnostics via handheld devices or control systems.
Built-in Laser Pointer: Facilitates easy alignment in narrow or tall vessels.
Low Maintenance:
Self-Correcting Signal Processing: Adapts to changing conditions, reducing manual calibration needs.
Heated Optics (Optional): Prevents condensation in humid environments.
4. Applications & Case Studies
The ABB LM80 excels in:
Power Generation: Monitoring coal silos and ash bunkers.
Mining & Minerals: Measuring ore stockpiles and conveyor belts.
Food & Beverage: Tracking grain, flour, or sugar in silos.
Chemical & Petrochemical: Monitoring bulk solids and opaque liquids.
Case Study: A European cement plant deployed the LM80 to measure limestone in a 50-meter silo with moderate dust. The HART protocol enabled real-time data integration with the plant’s DCS, while the heated optics prevented condensation during temperature fluctuations. The system reduced manual inspections by 80% and improved inventory accuracy by 95%.
5. Competitive Comparison
Feature
ABB LM80
Competitor Models
Beam Divergence
<0.3°
0.5°–1.0°
HART Protocol Support
Built-in
Optional add-on
Temperature Range
-40°C to +60°C
0°C to +50°C
Explosion-Proof Rating
ATEX/IECEx
Limited or none
Measurement Range
100 m (level)
50–80 m
The LM80 outperforms competitors with its narrow beam divergence and extreme temperature resilience, making it suitable for complex industrial applications.
ABB LM80
6. Selection Recommendations
Environment: Choose the LM80 for dusty, humid, or high-temperature environments.
Integration: Opt for the HART version if compatibility with existing automation systems is critical.
Safety: Select models with ATEX/IECEx certifications for hazardous areas.
7. Installation & Maintenance Tips
Mounting: Use ANSI/DIN flanges or tri-clover fittings for secure installation.
Alignment: Use the built-in laser pointer to aim the sensor directly at the material surface.
Calibration: Perform periodic checks using the HART protocol or ABB’s LCD2 handheld configurator.
Safety: Power off the system before cleaning or replacing components.
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