What Is the SICK DT50-2B415552 Distance Sensor?

The SICK DT50-2B415552 is a Dx50-2 Next Generation distance sensor that uses HDDM™ optical time-of-flight measurement to detect natural objects from 200 mm to 20,000 mm. Its dual interface combines a push-pull digital output and IO-Link V1.1 with a configurable analog output, making it a versatile choice for oil and gas automation projects.

Engineers specify This unit when a mission-critical application needs dependable, non-contact distance feedback. The sensor operates on a supply voltage of DC 10 V to 30 V and draws no more than 2.1 W, so it integrates easily into existing control cabinets. Its zinc die-cast housing and PMMA optical window are built for demanding environments, and the IP65/IP67 rating supports washdown and outdoor installations.

Key Features and Technical Specifications

• Measurement principle: HDDM™ optical time-of-flight for direct diffuse measurement on natural objects.
• Measuring range: 200 mm to 20,000 mm at 90% remission; 200 mm to 8,000 mm at 18%; 200 mm to 4,000 mm at 6%.
• Light source: Visible red laser diode at 658 nm, Class 1 eye-safe per IEC 60825-1:2014.
• Supply voltage: DC 10 V to 30 V with reverse-polarity protection.
• Power consumption: ≤ 2.1 W.
• Outputs: Digital push-pull (PNP/NPN) / IO-Link V1.1; analog 4 mA to 20 mA (≤ 450 Ω) or 0 V to 10 V (≥ 50 kΩ), 16-bit.
• Response time: 0.83 ms to 75 ms, configurable via speed settings.
• Repeatability: ≥ 0.5 mm to 5 mm; measurement accuracy typically ± 7 mm.
• Operating temperature: -40 °C to +65 °C; storage -40 °C to +75 °C.
• Enclosure rating: IP65 and IP67 per EN 60529.
• Electrical connection: M12 5-pin male connector.
• Dimensions and weight: 36.2 mm x 67.3 mm x 58 mm; approximately 235 g.

The extended -40 °C to +65 °C operating range works without an internal heater, which simplifies deployment in cold climates and reduces power demand. Because This unit delivers both switching and analog signals simultaneously, one device can serve position feedback and limit detection in the same installation.

How to Evaluate This unit for Your Application

Start by confirming the required measuring range against the target surface. The sensor reaches 20,000 mm on 90% remission targets, 8,000 mm on 18% remission surfaces, and 4,000 mm on 6% remission surfaces. For dark or matte materials, verify that the working distance stays within the reduced range.

Next, check the electrical environment. The DC 10 V to 30 V supply voltage with reverse-polarity protection suits most industrial control systems, and the ≤ 2.1 W power consumption keeps cabinet heat low. The M12 5-pin connector provides a secure, field-proven connection that technicians can service quickly.

Then consider the output strategy. The push-pull digital output and IO-Link V1.1 interface allow configuration and diagnostics over the network, while the analog output offers a direct 4 mA to 20 mA or 0 V to 10 V signal for legacy controllers. This dual-interface design reduces the need for separate sensor variants across a plant.

Finally, review the environmental ratings. The IP65/IP67 enclosure and zinc die-cast housing are built for demanding environments, including dust, washdown, and outdoor installations. The Class 1 laser is eye-safe under IEC 60825-1:2014, which simplifies risk assessments for personnel working near the beam path.

Typical Applications in Oil and Gas Automation

In tank farms and loading terminals, This unit can monitor product levels or detect vehicle presence without contacting the medium. Its long range and HDDM™ measurement principle handle dark, uneven surfaces that challenge simpler sensors.

On drilling rigs and wellheads, the sensor supports position feedback for gates, valves, and pipe handling equipment. The wide operating temperature range and IP67 rating suit exposed locations where temperature swings and moisture are routine.

Pipeline inspection and pigging systems benefit from the configurable response time, which can be tuned from 0.83 ms to 75 ms to match the speed of moving objects. Meanwhile, the analog output provides a continuous distance signal for trend monitoring.

Refinery packaging and palletizing lines use the digital output for presence detection and the IO-Link interface for parameter changes during product changeovers. In all these cases, This unit delivers reliability you can depend on.

Installation and Integration Guidance

Mount the sensor using the M12 5-pin connector and secure the housing to a stable bracket; the 36.2 mm x 67.3 mm x 58 mm body fits into tight spaces. Aim the laser beam perpendicular to the target surface to maintain accuracy, and avoid direct sunlight or strong ambient light on the receiver.

For IO-Link V1.1 integration, connect the sensor to an IO-Link master and configure parameters such as response time and output mode. The push-pull digital output can drive PNP or NPN inputs, so it adapts to existing PLC cards. When using the analog output, select the 4 mA to 20 mA mode for long cable runs or the 0 V to 10 V mode for high-impedance inputs.

Note that wiring into fieldbus networks may require an external gateway or connection module. Confirm cables and gateways with PetroPartsOnline before commissioning.

Maintenance and Reliability

This unit has no moving parts, so wear is minimal. Inspect the PMMA optical window periodically for dust, oil, or condensation, and clean it according to plant procedures. Because the sensor is rated IP65/IP67, it can be washed down without internal damage, but avoid high-pressure jets aimed directly at the window.

Check the M12 connector for tightness and corrosion during scheduled maintenance. The zinc die-cast housing resists mechanical impact, but mounting bolts should be verified for torque after vibration-heavy operations. With its -40 °C to +65 °C operating range, the sensor remains stable in cold start-ups and hot process areas without additional heating.

Frequently Asked Questions

What is the measuring range of This unit?

The SICK unit measures from 200 mm to 20,000 mm on 90% remission targets, 200 mm to 8,000 mm on 18% remission surfaces, and 200 mm to 4,000 mm on 6% remission surfaces.

What supply voltage does This unit require?

The sensor operates on DC 10 V to 30 V with reverse-polarity protection and consumes ≤ 2.1 W.

Does This unit support IO-Link?

Yes, it provides IO-Link V1.1 communication alongside a push-pull digital output and a configurable analog output.

What is the operating temperature range of This unit?

The ambient operating temperature range is -40 °C to +65 °C, and the storage range is -40 °C to +75 °C.

What is the enclosure rating of This unit?

The SICK unit is rated IP65 and IP67 per EN 60529, making it suitable for harsh industrial environments.

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

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