How Can You Measure Distance Reliably in Harsh Oil & Gas Environments?

The SICK DL50-2B215552 distance sensor answers that question with HDDM™ optical time-of-flight technology. It measures up to 50,000 mm on Diamond Grade reflective tape and operates from -40 °C to +65 °C. This Dx50-2 Next Generation sensor is built for demanding environments.

The DL50-2B215552 combines a visible red laser diode with a rugged zinc die-cast housing. Its dual interface supports both digital push-pull switching and IO-Link V1.1, plus an analog output. Therefore, it adapts to many mission-critical control systems.

Key Features and Technical Specifications

• Measurement Principle: HDDM™ optical time-of-flight for precise distance readings.
• Measuring Range: 200 mm to 50,000 mm on Diamond Grade reflective tape.
• Light Source: Visible red laser diode at 658 nm, Class 1 eye-safe per IEC 60825-1:2014.
• Response Time: Configurable from 0.83 ms to 75 ms via speed settings.
• Repeatability: ≥ 0.5 mm to 5 mm; measurement accuracy typically ± 7 mm.
• Supply Voltage: DC 10 V to 30 V, reverse-polarity protected.
• Power Consumption: ≤ 2.1 W.
• Output Interface: Digital push-pull (PNP/NPN) / IO-Link V1.1; analog 4-20 mA or 0-10 V, 16-bit.
• Electrical Connection: M12 5-pin male connector.
• Enclosure Protection: IP65 and IP67 per EN 60529.
• Operating Temperature: -40 °C to +65 °C; storage -40 °C to +75 °C.
• Housing Material: Zinc die-cast (ZNAL4CU1) with acrylic glass (PMMA) window.
• Dimensions: 36.2 mm x 67.3 mm x 58 mm; weight approximately 235 g.

The extended temperature range of -40 °C to +65 °C works without an internal heater. Consequently, This unit remains dependable in cold outdoor installations and hot process areas. The dual IP65/IP67 rating further protects against dust and water ingress.

Applications and Use Cases in Oil & Gas Operations

Distance measurement is critical for level monitoring, positioning, and collision avoidance. This unit excels in these areas because of its long range and fast response time.

For example, on offshore platforms, the sensor can monitor the position of crane hooks or pipe handling equipment. Its 50 m range on reflective tape allows safe standoff distances. In tank farms, it can detect the presence of floating roof levels when paired with a reflector. Additionally, the IO-Link interface enables easy parameter changes during setup or maintenance.

Because the sensor operates from -40 °C to +65 °C, it suits both arctic and desert installations. The rugged zinc die-cast housing resists vibration and impact. Therefore, This unit is field-proven for mission-critical applications.

Installation and Setup Guidance

Proper installation ensures reliable performance. Mount the sensor rigidly to avoid vibration-induced errors. Align the laser beam perpendicular to the target reflector. The visible red laser spot simplifies alignment during commissioning.

Connect the M12 5-pin connector to a suitable power supply within 10 V to 30 V DC. The reverse-polarity protection prevents damage from incorrect wiring. For IO-Link operation, use a standard IO-Link master and cable. The analog output can be configured for 4-20 mA or 0-10 V; select the mode that matches your control system.

Response time is configurable from 0.83 ms to 75 ms. Faster settings suit dynamic applications, while slower settings improve repeatability. Adjust these parameters via IO-Link or the multifunctional input.

Reliability and Maintenance

This unit is designed for long service life with minimal maintenance. The PMMA optical window should be inspected periodically for dust or debris. Clean it with a soft, damp cloth to maintain measurement accuracy.

Because the sensor has no moving parts, wear is minimal. The zinc die-cast housing withstands harsh conditions. However, check the mounting hardware for tightness after exposure to vibration. The IP65/IP67 rating allows washdown without damage, but avoid high-pressure jets directly on the window.

Operating within the specified temperature range prevents condensation and thermal stress. Therefore, reliability you can depend on is achieved through proper installation and routine inspection.

Frequently Asked Questions

What is the measurement range of This unit?

The SICK unit measures from 200 mm to 50,000 mm when using Diamond Grade reflective tape.

Can This unit operate in cold environments?

Yes, the operating temperature range is -40 °C to +65 °C. No internal heater is required.

What interface options does This unit offer?

It provides a digital push-pull output (PNP/NPN) with IO-Link V1.1 and a configurable analog output (4-20 mA or 0-10 V).

Is This unit eye-safe?

Yes, it uses a Class 1 laser per IEC 60825-1:2014 at 658 nm, which is eye-safe under normal operating conditions.

What is the supply voltage requirement?

The sensor operates on DC 10 V to 30 V and consumes ≤ 2.1 W.

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

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