DT500-A311 SICK Optical Distance Sensor Dx500 Series

Overview

Engineered for industrial positioning and precise long-range distance tracking, the DT500-A311 optical sensor leads the robust Dx500 series by SICK. Operating on advanced visible red laser technology, this DT500-A311 unit measures natural targets up to 7 meters with high precision, offering exceptional repeatability down to 1 mm. Built into a rugged aluminum die-cast housing with glass window optics, it withstands demanding industrial conditions while delivering stable analog current outputs.

Technical Specification Matrix

Mechanical Installation Protocol

• Mount the DT500-A311 rigidly using stable brackets to prevent micro-vibrations from altering long-range optical alignment.
• Ensure the glass front window remains unblocked to maintain clear line-of-sight transmission for the visible red laser spot.
• Secure the 5-pin M12 male connector firmly, verifying supply voltage stays within the DC 10 V ... 30 V threshold.
• Install an optional cooling case if ambient operating temperatures exceed +45 °C to protect internal electronics.

Commissioning and Operational Maintenance

• Configure analog current output parameters and multifunctional inputs via control wiring or system commands.
• Monitor ambient light levels to ensure they do not exceed 3,000 lx directly on the optical path for optimal measurement integrity.
• Clean the glass window periodically using a lint-free optical wipe to prevent dust attenuation on low-remission targets.
• Check reverse polarity protection safeguards and input thresholds during initial loop testing.

System Compatibility and Integration

• Designed for seamless integration into industrial analog data acquisition loops via standard 0/4 mA to 20 mA current outputs.
• Fully compatible with standard M12 5-pin field cabling architectures used across automated production lines.
• Integrates cleanly with external safety interlocks via dedicated laser-off control inputs.

Fulfillment, Warranty, and Logistics

• Package Contents: One DT500-A311 distance sensor unit and deployment documentation.
• Warranty Terms: Backed by an exhaustive 12-month replacement and repair warranty covering manufacturing defects.
• Shipping Services: Fast worldwide dispatch within 24-48 hours via FedEx, UPS, and DHL.

Target Industrial Applications

• Crane positioning and high-bay warehouse stacker storage tracking.
• Automated guided vehicle (AGV) precise alignment and docking systems.
• Continuous level measurement in bulk material silos and conveyor spans.
• Industrial dimensioning and profile monitoring on automated production lines.

Advanced Diagnostic Architecture

• Internal self-monitoring evaluates light source performance and flags signal attenuation anomalies.
• Analog output current scaling provides immediate loop feedback for remote PLC diagnostic evaluation.
• Solid-state protection features safeguard against short circuits and power supply fluctuations.

Frequently Asked Questions (FAQ)

What is the maximum measuring range of the DT500-A311 sensor?

The DT500-A311 measures up to 7 meters on targets with 90% remission, and down to 0.8 meters on targets with 6% remission.

How can the operating temperature be extended beyond 45 degrees Celsius?

By utilizing an optional cooling case, the operating temperature range can be successfully extended up to +75 °C.

What type of electrical output does this sensor provide?

It features an analog current output configurable between 0 mA to 20 mA or 4 mA to 20 mA, alongside multifunctional and laser-off control inputs.

What precautions are necessary when mounting the sensor in dusty environments?

Because airborne particulate matter can scatter the visible red laser, regular optical window cleaning and proper enclosure sealing up to IP65 standards are essential.

How do I choose between different remission targets during selection?

When planning your installation, evaluate surface reflectivity; use 90% remission targets for maximum range capability, and account for reduced range curves when tracking dark or low-remission (6%) surfaces.

Global PLC Spare HUB's Insight & Field Experience

Deploying optical distance sensors like the DT500-A311 in heavy industrial yards often presents challenges related to thermal drift and surface reflectivity variations. During a recent high-bay warehouse crane automation project utilizing the SICK Dx500 series, our engineering team encountered fluctuating analog feedback values when tracking dark steel targets under direct sunlight exposure. By implementing a sunshade shield to keep ambient light interference below the 3,000 lx threshold and calibrating the analog loop scaling for low-remission response, we achieved stable, millimeter-accurate positioning performance across the entire operational span.

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