What the SICK DT50-P1124 Delivers in Harsh Conditions

The SICK DT50-P1124 is a Dx50-series optical time-of-flight distance sensor built for demanding environments. It measures natural objects from 200 mm to 10,000 mm at 90% remission without a reflector. The integrated heater extends operation down to -40 °C, making it a dependable choice for cold-climate oil and gas installations.

Engineered for rugged duty, This unit combines HDDM™ measurement technology with a zinc die-cast housing. This sensor is field-proven in heavy-duty automation where repeatable distance feedback is mission-critical.

Key Specifications of the SICK unit

• Measurement Principle: HDDM™ optical time-of-flight for stable readings on natural surfaces.
• Measuring Range: 200 mm to 10,000 mm at 90% remission; 200 mm to 6,500 mm at 18% remission; 200 mm to 4,000 mm at 6% remission.
• Repeatability: ≥ 2.5 mm for consistent position feedback.
• Measurement Accuracy: Typ. ± 10 mm across the working range.
• Light Source: Visible red laser diode, 658 nm, Class 1 eye-safe per IEC 60825-1:2014.
• Response Time: Fast 20 ms / Slow 30 ms averaging setting.
• Supply Voltage: DC 24 V (18 V ... 30 V); VS > 15 V required for internal heating element; reverse-polarity protected.
• Power Consumption: ≤ 28 W with heater active, without external load.
• Outputs: 1x PNP digital output (≤ 100 mA); 1x voltage output (0 V ... 10 V, ≥ 5 kΩ, 16-bit); multifunctional input.
• Electrical Connection: M12 8-pin male connector.
• Ambient Temperature, Operation: -40 °C ... +65 °C with integrated heating; -40 °C ... +80 °C with 2 cooling plates; -40 °C ... +140 °C with 2 cooling plates and protection filter.
• Ambient Temperature, Storage: -40 °C ... +75 °C.
• Enclosure Rating: IP65 per EN 60529.
• Housing Material: Zinc die-cast (ZNAL4CU1) with acrylic glass (PMMA) optical window.
• Dimensions (W x H x D): 36.1 mm x 62.7 mm x 57.7 mm.
• Weight: Approx. 200 g.

How This unit Handles Oil and Gas Environments

Oil and gas sites expose sensors to temperature swings, moisture, and vibration. This unit addresses these conditions with a sealed IP65 zinc die-cast housing. Its integrated heater keeps the optical window clear in cold-storage and deep-freeze areas. As a result, the sensor maintains reliable distance readings where standard sensors may fog or fail.

The HDDM™ measurement principle provides ambient light stability. This matters on outdoor wellheads and tank farms where sunlight varies throughout the day. Meanwhile, the Class 1 laser is eye-safe, so no additional guarding is required for normal operation.

Installation and Electrical Integration

Mount This unit using its compact 36.1 mm x 62.7 mm x 57.7 mm body. The M12 8-pin connector simplifies wiring to control cabinets. Supply the sensor with DC 24 V within the 18 V ... 30 V range. Note that the internal heating element requires VS > 15 V to activate. For cold-weather reliability, ensure the supply remains above this threshold.

The voltage output (0 V ... 10 V) and PNP digital output connect directly to PLC analog and digital inputs. The multifunctional input allows additional configuration. Always follow local electrical codes and the manufacturer's wiring diagram.

Maintenance Practices for Long Service Life

Inspect the PMMA optical window periodically for dust, oil mist, or ice buildup. Clean with a soft, lint-free cloth and a mild cleaning solution suitable for acrylic glass. Check the M12 connector for tightness and corrosion. In high-temperature installations using cooling plates, verify that airflow remains unobstructed.

This unit has no moving parts, which reduces wear. However, extreme temperature cycling can stress seals. Therefore, schedule visual inspections during routine maintenance rounds. Addressing minor issues early protects the sensor's reliability you can depend on.

Frequently Asked Questions

What is the operating temperature range of This unit?

The SICK unit operates from -40 °C to +65 °C with integrated heating. With two cooling plates, the upper limit extends to +80 °C. Adding a protection filter allows operation up to +140 °C.

Can This unit measure without a reflector?

Yes. This unit uses HDDM™ optical time-of-flight technology to measure natural objects directly. It requires no reflector and achieves a range of 200 mm to 10,000 mm at 90% remission.

What supply voltage does This unit require?

The sensor requires DC 24 V within an 18 V ... 30 V range. The internal heating element needs VS > 15 V to operate. The input is reverse-polarity protected.

How does the heater improve cold-weather performance?

The factory-integrated heater prevents condensation and ice on the optical window. This allows reliable distance measurement in cold-storage and deep-freeze environments down to -40 °C.

What is the laser class of This unit?

This unit uses a Class 1 laser per IEC 60825-1:2014 and EN 60825-1:2014. It is eye-safe under normal operating conditions.

For parts suited to your application's requirements, contact PetroPartsOnline. Our team provides application-specific selection guidance for critical operations.

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