DL50-N2225 Long-Range Retro-Reflective Sensor
The SICK DL50-N2225 is a high-precision distance sensor from the Dx50 DL50 Hi family. It uses HDDM™ optical time-of-flight measurement. This model reaches up to 50,000 mm on Diamond Grade reflective tape. It delivers ± 3 mm accuracy and ≥ 1 mm repeatability. The RS-422 serial interface enables fast data output. A rugged zinc die-cast housing protects the unit in heavy-duty automation. The Class 1 laser is eye-safe. An LC display and menu buttons simplify setup. Operating range is -30 °C to +65 °C, extendable to +140 °C with cooling plates and filter.
Technical Data
- Brand: SICK
- Model: DL50-N2225
- Series: Dx50 / DL50 Hi
- Part Number: 1048419
- Principle: HDDM™ Optical Time-of-Flight
- Range: 200 mm … 50,000 mm (Diamond Grade tape)
- Light Source: Red laser 658 nm, Class 1
- Response Time: 15 ms / 30 ms / 80 ms (selectable)
- Repeatability: ≥ 1 mm
- Accuracy: ± 3 mm
- Digital Output: 1x NPN (≤ 100 mA)
- Serial Interface: RS-422
- Input: Multifunctional (MF)
- Supply Voltage: DC 10 V … 30 V
- Power Consumption: ≤ 2.1 W
- Connection: M12, 5-pin male
- Operating Temp: -30 °C … +65 °C (standard)
- Extended Temp: Up to +140 °C with cooling plates and filter
- Storage Temp: -40 °C … +75 °C
- Protection: IP65 (EN 60529)
- Dimensions: 36.1 x 62.7 x 57.7 mm
- Housing: Zinc die-cast (ZNAL4CU1), PMMA window
- Weight: Approx. 200 g
Oiltech Controls’s Insight
- The DL50-N2225 suits long-range positioning on reflective tape.
- RS-422 gives noise-immune serial data for PLC and motion controllers.
- HDDM™ maintains stability under changing ambient light.
- Zinc die-cast body resists vibration and impact in factory floors.
- Cooling plate option allows use near furnaces or hot processes.
- Ideal for replacing older Dx50 DL50 models with NPN wiring.
Compatible Equipment
- Automated storage and retrieval systems (AS/RS)
- Overhead cranes and monorails
- Steel coil handling and shears
- Port container cranes
- Paper roll and film winders
- AGVs with reflective tape guidance
- Press brake and bending machines
Why Buy From Oiltech Controls?
- Over 15 years in industrial automation spare parts.
- Worldwide shipping via FedEx, UPS, and DHL.
- Tested surplus and refurbished units available.
- Every order includes a 12-month warranty.
- Technical check before dispatch.
- We support legacy and obsolete control systems.
Contact: info@oiltechcontrols.com or +86 158 8020 0923 (WhatsApp).
Shipping and Warranty
- Orders ship in 24–28 hours after payment.
- Carriers: FedEx, UPS, DHL.
- 12-month warranty covers defects.
- Tracking number provided.
Professional FAQ
Q: Can the DL50-N2225 measure without reflective tape?
A: No. It needs Diamond Grade reflective tape for the 50 m range. For natural objects, choose a diffuse model like DT50.
Q: How do I connect RS-422 to a PLC?
A: Use a shielded twisted-pair cable. Match A/A’ and B/B’ terminals. Keep cable length under 1200 m. Set the PLC to RS-422 mode.
Q: What is the real benefit of HDDM™ over standard time-of-flight?
A: HDDM™ uses high-definition signal processing. It reduces noise from ambient light. It keeps repeatability at ≥ 1 mm even on long distances.
Q: When should I add cooling plates?
A: Use one pair for up to +80 °C. Use two pairs plus the protection filter for up to +140 °C. This suits steel mills and glass lines.
Q: How do I choose between DL50-N2225 and DL50-P2225?
A: DL50-N2225 has NPN output. DL50-P2225 has PNP. Match the sensor to your PLC input type. Both share the same RS-422 interface.
Q: What is the typical lead time for obsolete Dx50 parts?
A: Oiltech Controls stocks tested surplus. Most orders ship in 24–28 hours. Contact us for current availability.
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