LMS511-20190 Conveyor Sensor – 75Hz, Heating, Ethernet | SICK

Product at a Glance

• LMS511-20190 – bulk flow sensor from SICK BulkScan series
• Measures bulk solids on conveyors
• Working range: 0.5 m to 20 m
• Scanning angle: 190°
• Laser class 1 – eye‑safe (905 nm infrared)
• IP67 rated – dust and water resistant
• Heating included – works in cold environments
• Weight: 3.7 kg

Key Features

• Bulk solid measurement – specially designed for flow monitoring
• 190° aperture angle – wide coverage of conveyor belts
• Up to 75 Hz scan frequency – fast for high‑speed conveyors
• 5 evaluated echoes – reliable measurement
• IP67 protection – dust‑tight and water‑resistant
• Heating – operates at -40 °C to +60 °C
• Multiple interfaces – Ethernet, RS‑232, RS‑422, USB
• Encoder input – sync with conveyor speed

Technical Specifications

• Brand – SICK
• Model – LMS511-20190
• Series – BulkScan
• Type – Flow sensor for bulk solids
• Measurement principle – Laser run time technology
• Medium – Bulk solids
• Light source – Infrared 905 nm, laser class 1
• Aperture angle – 190°
• Scanning frequency – 35, 50, or 75 Hz (configurable)
• Working range – 0.5 m to 20 m
• Evaluated echoes – 5
• Measurement accuracy – ±3% (reference conditions)
• Response time – 13, 20, or 28 ms
• Average filter – 0 to 3,600 s
• Max conveyor speed – ≤ 30 m/s
• Supply voltage – 19.2 to 28.8 V DC
• Power consumption – 22 W + 55 W (heating)
• Heating – Yes
• Connection – M12 round connector
• Interfaces – Ethernet, RS‑232, RS‑422, USB
• Digital inputs – 2 + Encoder
• Digital outputs – 6
• Analog signals – via BAM100 accessory (sold separately)
• Indicators – 5 LEDs + 7‑segment display
• IP rating – IP67
• Dimensions – 160 × 155 × 185 mm
• Weight – 3.7 kg
• Housing color – Gray (RAL 7032)
• MTTF – > 100 years

Environmental Data

• Operating temp – -40…+60 °C
• Storage temp – -40…+70 °C
• Ambient light immunity – 70,000 lx
• EMC – IEC/EN 61000‑6‑2 / ‑6‑3

Installation & Setup

• Mount – above conveyor belt, ≥0.5 m from material
• Alignment – aim at bulk solid flow for best measurement
• Wiring – use M12 connector for power and signals
• Heating – automatically activates in cold conditions
• Configuration – via SOPAS software over Ethernet or USB
• Encoder connection – sync with conveyor speed for accuracy
• Testing – verify with known flow rate
• Grounding – connect housing to earth

Maintenance & Diagnostics

• Display – 7‑segment shows status and errors
• LEDs – 5 LEDs for quick status checks
• Cleaning – wipe front window with soft cloth
• Average filter – adjust to smooth readings
• Inspection – check window cleanliness monthly
• No calibration needed – factory set

Compatibility

• Controllers – works with PLCs via Ethernet, RS‑232, RS‑422
• Software – SICK SOPAS, other TCP/IP tools
• Analog output – use BAM100 accessory for 4‑20 mA
• Mounting – standard bracket compatible

Package Contents

• 1× LMS511-20190 BulkScan flow sensor
• 1× M12 connector
• Quick start guide (paper)
• Warranty card

Warranty & Delivery

• 12‑month warranty – covers defects in materials and workmanship
• 12‑24 hour dispatch – orders ship within one business day
• Carriers – FedEx, UPS, DHL (tracking number provided)
• Free technical support via phone/email

Expert Review

• Specialized for bulk solids – perfect for conveyor monitoring
• Wide temperature range – -40…+60 °C with heating
• Fast measurement – up to 75 Hz for high‑speed conveyors
• Accurate – ±3% measurement accuracy
• IP67 rugged – dust‑tight and water‑resistant
• Encoder input – sync for speed‑compensated readings

Manager’s Insight

• Best for – mining, cement, aggregates, and bulk material handling
• Reduces downtime – non‑contact measurement, no wear parts
• Improves efficiency – real‑time flow monitoring
• Heavy‑duty design – built for harsh industrial environments
• Long lifespan – MTTF > 100 years

Typical Applications

• Conveyor belt flow monitoring
• Mining and aggregates
• Cement and building materials
• Food and feed processing
• Bulk solids handling
• Recycling and waste management

Frequently Asked Questions

• What does LMS511‑20190 measure?
• It measures the flow of bulk solids on conveyor belts.
• What is the maximum conveyor speed?
• Up to 30 m/s.
• Does it work in cold environments?
• Yes. It has built‑in heating and operates from -40 to +60 °C.
• What interfaces does it have?
• Ethernet, RS‑232, RS‑422, and USB.
• How accurate is the measurement?
• ±3% under reference conditions.
• Do I need an encoder?
• Recommended for speed‑compensated flow measurement.
• Does it come with analog output?
• No. Analog output requires the BAM100 accessory (sold separately).
• Is it IP67 rated?
• Yes. It is dust‑tight and protected against water.

Selection Guide

• Material type – choose this sensor for bulk solids only.
• Conveyor speed – up to 30 m/s; select scan frequency accordingly.
• Environment – IP67 and -40…+60 °C for harsh conditions.
• Interface – Ethernet for most applications; RS‑232/422 for legacy systems.
• Analog output – add BAM100 accessory if 4‑20 mA is needed.
• Encoder – recommended for speed‑compensated measurement.

Comparison with Similar Models

• LMS511-20190 – BulkScan, 190°, 20 m, with heating (this model)
• LMS511-10190 – similar but without heating
• LMS511-20190 Pro – higher accuracy version
• LMS531-20190 – longer range (30 m) version

Contact & Support

• Email: sales@powergearx.com
• WhatsApp: +86 18030005825
• Technical support available 24/5

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