SICK LMS511-20190 Laser Flow Sensor

SICK LMS511-20190 Bulkscan Flow Sensor

Product Introduction

The SICK LMS511-20190 is a flow sensor from the LMS511 Bulkscan series. It measures bulk solids using laser run time technology. This device uses a 905 nm infrared light source. Moreover, it complies with laser class 1 eye-safe standards. The sensor supports serial and Ethernet communication. Its design suits conveyor and bulk handling applications. Additionally, the LMS511-20190 delivers flexible scanning frequencies and multiple evaluated echoes.

Technical Specifications

The SICK LMS511-20190 offers a horizontal aperture angle of 190°. Scanning frequency options include 35 Hz, 50 Hz, and 75 Hz. The bandwidth has no limit. Meanwhile, the working range spans from 0.5 m to 20 m. Measurement accuracy is ±3% at reference conditions. The response time options are 13 ms, 20 ms, and 28 ms. The average filter ranges from 0 s to 3,600 s. The maximum conveyor speed is ≤30 m/s. The device evaluates 5 echoes.

Mechanical and Environmental Parameters

The LMS511-20190 uses an M12 round connector. Its supply voltage ranges from 19.2 V to 28.8 V. Power consumption is 22 W, plus 55 W for heating. Residual ripple is ±5%. The switch-on peak current is 2 A. The operating current for the scanner is ≤1.3 A. The switch-on time is ≤60 s. The housing color is gray (RAL 7032). The enclosure rating is IP67. The weight is 3.7 kg. Dimensions are 160 mm x 155 mm x 185 mm. MTTF exceeds 100 years.

For ambient conditions, the operating temperature is –40 °C to +60 °C. The storage temperature is –40 °C to +70 °C. Ambient light immunity is 70,000 lx. EMC meets IEC and EN industrial standards. The sensor must stay at least 0.5 m from the bulk solid. This distance ensures accurate measurement.

Interfaces and Communication

The LMS511-20190 provides an auxiliary interface, a serial host interface, and Ethernet. Each interface has one port. Protocols include USB 2.0, RS-232, RS-422, and TCP/IP. The data transmission rate is 500 kBaud for serial and 100 Mbit/s for Ethernet. Switching inputs are 2 plus an encoder. Switching outputs are 6. Analog signals are available with the separate BAM100 accessory. Optical indicators include 5 LEDs and a 7-segment display.

Installation Guide

First, mount the LMS511-20190 above the conveyor using its 160 mm x 155 mm x 185 mm housing. Next, keep the sensor at least 0.5 m from the bulk solid. Then, connect the M12 round connector to a 19.2 V to 28.8 V DC supply. Ensure the residual ripple stays within ±5%. After that, configure the Ethernet or serial interface for data transmission. Use the USB port for auxiliary access. Additionally, set the scanning frequency and average filter to match your process. Finally, verify the IP67 enclosure rating is maintained after installation.

Packaging List

• 1 x SICK LMS511-20190 Bulkscan Flow Sensor

• 1 x M12 round connector set

• 1 x USB auxiliary cable

• 1 x Mounting hardware kit

• 1 x Quick start guide

FAQ

Q1: What is the working range of the LMS511-20190?
A1: The working range is 0.5 m to 20 m. The sensor must stay at least 0.5 m from the bulk solid.

Q2: What measurement principle does this sensor use?
A2: It uses laser run time technology. The light source is infrared at 905 nm.

Q3: What is the measurement accuracy of this device?
A3: The measurement accuracy is ±3% at reference conditions. It evaluates 5 echoes.

Q4: Which interfaces does the LMS511-20190 support?
A4: It supports USB 2.0, RS-232, RS-422, and TCP/IP. Ethernet runs at 100 Mbit/s.

Q5: How is the LMS511-20190 shipped?
A5: We ship via Fedex, UPS, or DHL. The gross weight is 4.2 kg.