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Sick

Sick DT35-B15251 Mid-Range Distance Sensor

SKU CH-B2GJ-N0PDZ

Mid-range laser distance sensor measuring 50 mm to 12,000 mm with 0.1 mm resolution and ±10 mm accuracy

  • Measures up to 12 000 mm on bright targets
  • Resolves 0,1 mm for fine positioning tasks
  • Laser class 2 ensures safe operation
  • Switching frequency up to 333 Hz for fast response
  • Operates on 12 V to 30 V DC supply

SICK DT35-B15251 Mid-Range Distance Sensor

The SICK DT35-B15251 is a laser-based distance sensor designed for industrial automation and electrician applications requiring precise position detection. It measures distances from 50 mm up to 12,000 mm on targets with 90 % remission and down to 3,100 mm at 6 % remission. The red laser operates at Class 2 per IEC 60825-1:2014 with a typical spot size of 15 mm by 15 mm at two metres.

Integration Requirements and Output Flexibility

The sensor requires a DC supply voltage between 12 V and 30 V with ripple below 5 Vpp and consumes up to 1.7 W. Output Q2 is selectable between 4 mA to 20 mA, 0 V to 10 V or a switching output, while switching modes include Distance to Object, window and object between sensor and background. A multifunctional input accepts laser off, external teach or deactivated signals, and initialization takes up to 32 ms depending on configuration.

Measurement Headroom and Speed Limits

Resolution reaches 0.1 mm with repeatability of 0.5 mm and typical accuracy of ±10 mm. Response times range from 2.5 ms to 96.5 ms, yielding switching frequencies from 333 Hz down to 6 Hz, and output times span 1 ms to 32 ms. The laser diode is rated for 100,000 hours at 25 °C, so very high-speed or sub-millimetre applications beyond these figures will need a different sensor class.

Highlights

  • Measures up to 12 000 mm on bright targets
  • Resolves 0,1 mm for fine positioning tasks
  • Laser class 2 ensures safe operation
  • Switching frequency up to 333 Hz for fast response
  • Operates on 12 V to 30 V DC supply

Specifications

BrandSICK
ModelSICK DT35-B15251

Questions about this item

At what distance does the 15 mm × 15 mm light spot limit reliable detection?

The typical light spot is 15 mm × 15 mm at 2 m; at longer ranges the spot grows and may exceed small targets, reducing reliable detection.

How much heat does the sensor add to an enclosure during continuous operation?

Power consumption is 1.7 W at 12 V–30 V DC, so the sensor dissipates roughly 1.7 W of heat inside the cabinet.

Which supply voltage must the installer provide for the sensor to operate?

The sensor requires a DC supply of 12 V to 30 V with ripple below 5 Vpp.

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