The SICK DT500-A111 is a Sensor for industrial control and automation applications.

The SICK DT500-A111 is a pulsed optical laser time-of-flight distance sensor from the Dx500 Standard family, measuring up to 30 m on natural surfaces. Its visible red laser diode operates at 650 nm with Class 2 classification per IEC 60825-1:2014.

What should you verify before specifying the DT500-A111?

Begin with the measurement task. This unit covers 0.2 m ... 30 m on 90% white remission targets and 0.8 m ... 15 m on 6% black remission targets. Therefore, dark or uncooperative surfaces reduce the usable range. Confirm your target remission and required span before selection.

Next, review the electrical envelope. The sensor accepts a supply voltage of DC 10 V ... 30 V with reverse-polarity protection. Power consumption is ≤ 3.5 W ... 4 W without load. The analog current output of 4 mA ... 20 mA (≤ 500 Ω) suits legacy control loops, while the RS-422 serial interface supports configuration and diagnostics. A 5-pin M12 male connector provides the electrical connection.

Finally, match the environment. The operating ambient temperature is -10 °C ... +45 °C, and storage temperature is -25 °C ... +75 °C. The IP65 enclosure rating (EN 60529) and heavy-duty aluminum die-cast housing resist dust and water jets. The device weighs approximately 1,000 g and measures 69 mm x 50 mm x 153 mm.

Key features and technical specifications

• Measurement principle: Pulsed optical laser time-of-flight distance measurement.
• Measuring range: 0.2 m ... 30 m (90% white remission), 0.8 m ... 15 m (6% black remission).
• Light source: Visible red laser diode, 650 nm, Class 2 per IEC 60825-1:2014, average optical power < 1 mW.
• Repeatability: 3 mm ... 5 mm.
• Measurement accuracy: Typ. ± 3 mm ... ± 10 mm.
• Response time: 250 ms (Fast mode) / 1,000 ms (Standard mode).
• Supply voltage: DC 10 V ... 30 V, reverse-polarity protected.
• Power consumption: ≤ 3.5 W ... 4 W (without load).
• Output and communication: 1x current output (4 mA ... 20 mA, ≤ 500 Ω); RS-422 serial interface; 1x PNP multifunctional input (MF).
• Electrical connection: Male connector M12, 5-pin.
• Ambient temperature, operation: -10 °C ... +45 °C.
• Ambient temperature, storage: -25 °C ... +75 °C.
• Enclosure protection rating: IP65 (EN 60529).
• Housing material: Heavy-duty aluminum die-cast housing.
• Physical dimensions (W x H x D): 69 mm x 50 mm x 153 mm.
• Device weight: Approx. 1,000 g.

How does This unit handle harsh oil and gas environments?

The heavy-duty aluminum die-cast housing and IP65 rating make the sensor suitable for dusty and wet industrial areas. The operating temperature range of -10 °C ... +45 °C covers many indoor and sheltered outdoor installations. However, verify that the actual ambient temperature at the mounting point stays within this band, especially near hot slabs or metal coils. The Class 2 laser requires standard precautions; avoid direct eye exposure and follow the manufacturer's safety manual.

Where does this sensor fit in oil and gas operations?

Typical applications include position monitoring of coal, paper rolls, and metal coils on conveyors or processing lines. The reflectorless measurement up to 30 m on natural surfaces simplifies installation where mounting a reflector is impractical. In tank farms or loading areas, the 4 mA ... 20 mA output can feed existing control systems. For dark or low-reflectivity targets, expect reduced range per the 6% black remission specification. The front panel display and keypad enable on-site setup without a laptop.

Integration and installation notes

Wire the 5-pin M12 connector according to the pinout in the official datasheet. The RS-422 serial interface supports configuration and data retrieval; however, wiring into a fieldbus network may require an external gateway or connection module. Confirm cable and gateway compatibility with PetroPartsOnline before commissioning. Mount the sensor rigidly to avoid vibration-induced measurement errors, and respect the 1,000 g weight during installation.

Reliability and maintenance

Inspect the front window periodically for dust and debris, which can attenuate the laser beam and reduce accuracy. Clean with a soft, lint-free cloth; avoid abrasive cleaners. Check the M12 connector for tightness and corrosion. The solid-state design has no moving parts, so wear is minimal. Store spare units within the -25 °C ... +75 °C storage range. For mission-critical loops, keep a spare sensor on hand to minimize downtime.

Frequently asked questions

What is the measuring range of the SICK unit?

The SICK unit measures 0.2 m ... 30 m on 90% white remission surfaces and 0.8 m ... 15 m on 6% black remission surfaces.

What supply voltage does This unit require?

The SICK unit operates on DC 10 V ... 30 V and includes reverse-polarity protection.

What is the operating temperature range of This unit?

The SICK unit operates from -10 °C ... +45 °C and can be stored from -25 °C ... +75 °C.

What output signals are available on This unit?

The SICK unit provides a 4 mA ... 20 mA current output (≤ 500 Ω), an RS-422 serial interface, and a PNP multifunctional input.

Is This unit protected against dust and water?

The SICK unit carries an IP65 rating per EN 60529, supported by its heavy-duty aluminum die-cast housing.

Contact PetroPartsOnline for parts suited to your application's requirements.

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