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ABB LM80.A — Laser Level Transmitter
he LM80.A is a non-contact, time-of-flight laser level transmitter engineered for continuous level, distance or positioning measurement of solids, opaque liquids and slurries. The instrument emits a narrow-beam laser pulse, measures the reflection time and calculates the exact distance to the material surface without physical contact .
Detailed content
Technical Specifications
• Measuring range: 0.1 – 100 m for level applications, up to 150 m for positioning
• Accuracy: ±25 mm (±1 in) within the whole range, resolution 10 mm
• Beam divergence: <0.3°; no false echoes from structures or falling material
• Output: 4–20 mA (HART optional), two programmable single-pole relays
• Supply voltage: 24 VDC standard, 110/220 VAC optional
• Ambient temperature: –40 °C to +60 °C (electronics), optional heated lens for condensation protection
• Enclosure: rugged aluminium housing, IP66/IP67, NEMA 4X; stainless-steel version on request
• Process connection: universal 4 in or 6 in ANSI / DIN flanges, Triclover tri-clamp, 1¼ in NPT thread
• Hazardous-area approvals: CSA, ATEX, IECEx Ex d IIC T6…T4
• Measuring range: 0.1 – 100 m for level applications, up to 150 m for positioning
• Accuracy: ±25 mm (±1 in) within the whole range, resolution 10 mm
• Beam divergence: <0.3°; no false echoes from structures or falling material
• Output: 4–20 mA (HART optional), two programmable single-pole relays
• Supply voltage: 24 VDC standard, 110/220 VAC optional
• Ambient temperature: –40 °C to +60 °C (electronics), optional heated lens for condensation protection
• Enclosure: rugged aluminium housing, IP66/IP67, NEMA 4X; stainless-steel version on request
• Process connection: universal 4 in or 6 in ANSI / DIN flanges, Triclover tri-clamp, 1¼ in NPT thread
• Hazardous-area approvals: CSA, ATEX, IECEx Ex d IIC T6…T4
Functional Features
• Non-contact measurement: eliminates wear, contamination and risk of product damage
• Narrow laser beam: allows installation through small nozzle openings and in confined spaces
• Built-in purge port: ¼ in NPT for air/nitrogen cleaning to prevent dust build-up on optics
• One-button setup: no calibration required; guided commissioning via optional LCD2 handheld configurator
• Remote configuration: HART handheld or PC with PuTTY terminal over 4–20 mA loop
• Maintenance-free: no moving parts, long-life semiconductor laser (>50 000 h MTBF)
• Non-contact measurement: eliminates wear, contamination and risk of product damage
• Narrow laser beam: allows installation through small nozzle openings and in confined spaces
• Built-in purge port: ¼ in NPT for air/nitrogen cleaning to prevent dust build-up on optics
• One-button setup: no calibration required; guided commissioning via optional LCD2 handheld configurator
• Remote configuration: HART handheld or PC with PuTTY terminal over 4–20 mA loop
• Maintenance-free: no moving parts, long-life semiconductor laser (>50 000 h MTBF)
Typical Applications
• Chemical: reactor vessels, storage tanks, aggressive liquids
• Mining: crushed-ore bins, coal bunkers, stockpile monitoring
• Grain & feed: silos, grain elevators, solid pellet storage
• Power & cement: fly-ash hoppers, clinker silos, high-dust environments
• Water & wastewater: settling tanks, open-channel flow measurement
• Chemical: reactor vessels, storage tanks, aggressive liquids
• Mining: crushed-ore bins, coal bunkers, stockpile monitoring
• Grain & feed: silos, grain elevators, solid pellet storage
• Power & cement: fly-ash hoppers, clinker silos, high-dust environments
• Water & wastewater: settling tanks, open-channel flow measurement
Ordering Highlights
• Standard model: LM80.A (aluminium housing, 24 VDC, 4–20 mA)
• Accessories: stainless-steel dust tube P801, cooling jacket, sun shade, heated lens kit, LCD2 handheld configurator
• Certificates: CE, CSA, ATEX, IECEx test reports and calibration sheet included
• Standard model: LM80.A (aluminium housing, 24 VDC, 4–20 mA)
• Accessories: stainless-steel dust tube P801, cooling jacket, sun shade, heated lens kit, LCD2 handheld configurator
• Certificates: CE, CSA, ATEX, IECEx test reports and calibration sheet included
