DL100-21HA2112: A Field-Proven Laser Sensor for Demanding Environments

The SICK DL100-21HA2112 is a phase-shift optical time-of-flight laser distance sensor that measures up to 100 m on Diamond Grade reflective tape. Its integrated heating system enables dependable operation down to -40 °C, making it a rugged choice for cold-storage and outdoor applications.

From a maintenance engineer's perspective, This unit reduces service complexity. The integrated heating system eliminates the need for external enclosures in freezer aisles. Meanwhile, PROFINET IO with dual-port 100 Mbit/s and MRP support simplifies network integration and diagnostics. This sensor is built for demanding environments where reliability you can depend on is non-negotiable.

Key Specifications of the SICK unit

• Measurement range: 0.15 m to 100 m on Diamond Grade reflective tape.
• Repeatability: 0.5 mm to 1 mm (typical 0.5 mm at 1 σ).
• Measurement accuracy: typically ± 2 mm to ± 3 mm.
• Maximum tracking velocity: 15 m/s.
• Maximum acceleration: 15 m/s².
• Light source: visible red laser diode, 658 nm, Class 2 per IEC 60825-1:2014, average optical power < 1 mW.
• Supply voltage: DC 18 V to 30 V, reverse-polarity protected.
• Power consumption: typically 25 W to 35 W with internal heating element active.
• Operating ambient temperature: -40 °C to +55 °C with integrated heating system active.
• Storage ambient temperature: -40 °C to +75 °C.
• Enclosure protection rating: IP65 per EN 60529.
• Housing material: aluminum die-cast with acrylic glass (PMMA) optical window.
• Dimensions (W x H x D): 69.4 mm x 82.5 mm x 100.2 mm.
• Weight: approximately 1,000 g.
• Electrical connection: power via male M12 4-pin; PROFINET via 2x female M12 4-pin (D-coded, SPEEDCON™).
• Communication interface: PROFINET IO, dual-port 100 Mbit/s, RT/IRT, LLDP, MRP supported.
• Auxiliary outputs: 2x push-pull (PNP/NPN, configurable B/Q, ≤ 100 mA).
• Multifunctional input: MF input available.

The combination of 15 m/s tracking velocity and 15 m/s² acceleration suits high-speed automated storage and retrieval systems (ASRS). In addition, the 1 ms internal measurement rate supports fast fieldbus cycles. For engineers evaluating a bently nevada probe replacement, This unit offers a non-contact alternative with PROFINET connectivity.

Installation and Commissioning Guidance

Mount the sensor using the integrated optical 3-axis alignment bracket compatibility. This feature simplifies precise alignment with the reflective tape. Connect power to the male M12 4-pin connector and PROFINET to the two female M12 4-pin D-coded ports. The dual-port design supports daisy-chain topologies and MRP ring redundancy. During commissioning, verify the supply voltage stays within DC 18 V to 30 V. Also confirm the ambient temperature range matches the application; the integrated heating system activates automatically in cold conditions.

The integrated LC display with intuitive menu navigation allows parameter checks without a laptop. This speeds up troubleshooting and reduces downtime. Always follow SICK's official documentation for wiring and configuration details.

Reliability and Maintenance in Harsh Conditions

The IP65 rating and die-cast aluminum housing protect against dust and water jets. The PMMA optical window resists scratches but should be inspected periodically for contamination. In cold-storage facilities, the internal heating system prevents condensation and frost on the optics. This reduces manual defrosting interventions and supports continuous operation.

From a maintenance standpoint, This unit requires minimal scheduled service. Check the optical window monthly or as site conditions dictate. Verify connector integrity and cable strain relief during routine inspections. Because the sensor has no moving parts, wear is limited to the optical interface. The PROFINET interface with LLDP and MRP provides network diagnostics that help identify communication issues early.

For a proximity probe alternative, this laser sensor avoids target contact and therefore eliminates mechanical wear. However, it requires a reflective tape target and a clear line of sight. Ensure the tape remains clean and undamaged for accurate measurements.

Integration with PROFINET Networks

This unit communicates via PROFINET IO with RT/IRT support, making it suitable for real-time automation tasks. The dual-port 100 Mbit/s interface with MRP allows ring redundancy, which enhances network reliability. Integration Note: Wiring into PROFINET networks may require an external gateway or connection module. Confirm cables and gateways with PetroPartsOnline for your specific application.

The auxiliary push-pull outputs can be configured as PNP or NPN, providing flexibility for interfacing with other control components. The multifunctional input (MF) can be used for application-specific functions as defined in the SICK documentation.

Frequently Asked Questions

Q: What is the operating temperature range of the SICK unit?

A: The SICK unit operates from -40 °C to +55 °C with the integrated heating system active. Storage temperature ranges from -40 °C to +75 °C.

Q: What supply voltage does This unit require?

A: The sensor requires a DC supply voltage of 18 V to 30 V and is reverse-polarity protected. Power consumption is typically 25 W to 35 W when the heating element is active.

Q: Can This unit serve as a bently nevada probe replacement?

A: This unit is a non-contact laser distance sensor with PROFINET IO. It can serve as a bently nevada probe replacement in applications where a reflective tape target and PROFINET connectivity are acceptable. Consult PetroPartsOnline for application-specific selection guidance.

Q: What is the maximum measurement range on Diamond Grade reflective tape?

A: The SICK unit measures up to 100 m on Diamond Grade reflective tape, with a minimum range of 0.15 m.

Q: How is the sensor connected to power and network?

A: Power connects via a male M12 4-pin connector. PROFINET uses two female M12 4-pin D-coded connectors with SPEEDCON™ technology.

Availability and Support

Contact PetroPartsOnline for current availability and lead times of the SICK unit. Our team provides application-specific selection guidance for oil & gas and industrial automation projects. Please verify current lifecycle status and availability with PetroPartsOnline before ordering.

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