OD2-N250W150A2
SICK OD2-N250W150A2 is a compact optical distance sensor from the OD2 series, designed for precise measurement of object distance and positioning. It operates on the principle of triangulation with advanced CMOS receiver technology, providing high accuracy and repeatability even on difficult surfaces. The sensor offers a measuring range up to 250 mm, with a 150 mm reference point, ensuring reliable detection for automation, quality control, and positioning tasks.
DESCRIBE
Technical Specifications
Measuring range: 100 mm … 400 mm (with reflectivity 6 % … 90 %)
Repeatability: ≈ 75 µm (measured on white ceramic, 90 % reflectivity, averaging mode)
Linearity: ± 750 µm
Response time: ≥ 1 ms, communication frequency ≈ 0.75 kHz
Measuring frequency: approx. 1.3 kHz
Light source: Visible red laser, wavelength 655 nm, max. output power 1 mW, Class 2 laser
Typical light spot size: approx. 1.8 mm × 3.5 mm at 250 mm
Interfaces and Control
Communication interface: RS-422 serial interface
Digital outputs: 1 × NPN output, max. load current ≤ 100 mA
Multi-function input (MF): 1 input for laser off, trigger, external teach-in, etc. (response time ≤ 3 ms)
Additional functions:
Averaging (1 … 64×)
Automatic sensitivity adjustment
Teach-in of switching output
Switch output polarity inversion
Switching modes: Distance-to-Object (DtO) or Window (Wnd)
Electrical and Display
Supply voltage: DC 12 V … 24 V
Power consumption: ≤ 2.88 W (with idle current output)
Warm-up time: ≤ 30 minutes
Status display: Distance bar graph with up to 8 LEDs
Mechanical and Environmental Characteristics
Enclosure rating: IP67 (dust-tight and waterproof)
Protection class: III (protective low voltage)
Dimensions: approx. 20.4 mm × 60 mm × 50 mm (W × H × D)
Weight: approx. 70 g
Housing material: Plastic (PBT); optical window: PMMA
Connection type: 2 m cable outlet (M12 connector versions available)
Environmental and Reliability
Operating temperature: –10 °C … +40 °C
Storage temperature: –20 °C … +60 °C
Humidity: 35 % … 95 % RH, non-condensing
Temperature drift: ± 0.08 % FS / K
Vibration resistance: 10 Hz … 55 Hz, amplitude 1.5 mm, 2 hours per axis (x, y, z)
Shock resistance: 50 g, 3 shocks per axis (x, y, z)
Ambient light immunity: ≤ 3,000 lx (artificial light); ≤ 10,000 lx (sunlight)
MTTF: 101 years, DCavg 0 %
Certifications and Classification
Conforms to EU, UK, ACMA, Moroccan directives; China RoHS compliant
Classified under ECLASS, ETIM, UNSPSC industrial standards
Summary Table
Category Specification
Measuring range 100 … 400 mm
Accuracy Repeatability 75 µm; Linearity ± 750 µm
Performance ≥ 1 ms response time, ~0.75–1.3 kHz measuring frequency
Light source Red laser, 655 nm, Class 2, 1 mW max.
Interfaces RS-422; 1 × NPN output; 1 × multi-function input
Power 12–24 V DC; ≤ 2.88 W; warm-up ≤ 30 min
Indicators LED distance bar graph (up to 8 LEDs)
Mechanics IP67 housing, 20.4 × 60 × 50 mm, 70 g
Environment –10 °C … +40 °C; high immunity to ambient light; vibration/shock resistant
Certification EU/UK/ACMA/China RoHS; MTTF up to 101 years