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Overview

The SICK DT500-A311 is a laser distance sensor designed for industrial automation. It operates with a red laser source at 650 nm wavelength, classified as Laser Class 1. The device provides a measuring range from 0.05 m to 400 m, with a resolution of 1 mm. It features an analog output signal of 4-20 mA and supports digital communication via RS485 using the PROFIBUS DP protocol. The housing is constructed from aluminum alloy, offering IP67 protection against dust and water ingress. The unit weighs approximately 0.9 kg and functions within an ambient temperature range of -20 °C to +50 °C.

Feature Summary

• High-precision long-range measurement capability utilizing red laser technology
• Robust metal housing design ensuring durability in harsh industrial environments
• Integrated dual-interface support combining analog current output with digital fieldbus connectivity

Applications

• Level monitoring in bulk material storage silos and hoppers
• Distance measurement for automated guided vehicles (AGVs)
• Position detection in high-speed conveyor systems
• Volume calculation in logistics and warehousing applications

Procurement Notes

Verify that the specific order number matches the required interface configuration, as the A311 suffix denotes PROFIBUS DP compatibility alongside analog outputs. Confirm environmental ratings align with installation site conditions, specifically regarding the IP67 enclosure rating and operating temperature limits. Ensure power supply specifications meet the device requirements before integration into existing control architectures.

Selection Notes

Select this model when long-range precision is critical for stationary or mobile platform positioning. The combination of analog and digital outputs allows flexible integration into legacy and modern control systems simultaneously. Consider the beam divergence and spot size characteristics relative to target reflectivity and surface texture to ensure reliable signal acquisition over the full specified measuring range.

Part Context

This component belongs to the DT500 series of laser distance sensors manufactured by SICK. The series is engineered for demanding factory automation tasks requiring accurate non-contact distance determination. The DT500-A311 variant specifically addresses applications needing robust communication protocols alongside standard process signals for seamless PLC integration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing mounting brackets and cabling assemblies if replacing older generations within the same product family.