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Sick DT20-P254B Overview



DT20-P254B DT20 Hi: Distance sensor with display Measuring range 50...150 mm, analog output 4...20 mA, PNP switching output Q/Q cross- wise; outputs individually scalable via teach-in/manual adjustment

Sick DT20-P254B Description



  • Four measuring ranges from 50 mm through 1,000 mm
  • Very high accuracy of up to 0.5 mm
  • CMOS receiving element enables accurate distance measurement independent of color or shininess
  • Red laser
  • Freely scalable analog and switching output
  • Display with easy to use setup menu
  • Advanced settings (e.g., averaging, external laser-off, etc.)
  • Your benefits

  • Reliable, precise measurement, independent of surface, increases production quality
  • Reliable and consistent measurements, regardless of color, reduce changeover time
  • Advanced settings provide increased application flexibility to easily solve customer-specific applications
  • Fast commissioning via button, remote or numerical teach
  • Easy, precise alignment and verification based on red laser light and LC display, decreasing commissioning time
  • Tough metal housing permits operation in harsh environments

Performance
Output rate:< 2.8 ms
Light source:Laser, red 1)
Typ. light spot size (distance):3 mm x 3 mm (at 100 ... 600 mm)
Additional features:Switch off display, Invertable analog output, Teach-in of analog output, Teach in of switching outputs, Set moving averaging: Fast/Medium/Slow, Multi functional input: laser off, external teach, inactive, Scaling of analog outputs, Set levels of switching outputs, Switching output invertable, Switching mode: Distance to object (DtO), Lock user interface, Reset to factory default
Response time:2.5 ms / 10 ms / 40 ms 2) 3)
Laser protection class:2 (EN 60 825-1)
Resolution 6 % ... 90 %:0.1 mm
Accuracy 6 % ... 90 % remission: 0.5 mm
Repeatability 6 % ... 90% remission:0.5 mm
0.25 mm
0.13 mm 4)
Measuring range 6 % ... 90 % remission:50 mm ... 150 mm
1) Wave length: 655 nm, max. output: 1 mW, pulse length: 1 ms 2) 4) Dependent on the set averaging: fast/medium/slow 3) For continuous change of distance, for lateral entry of object into measuring range response time ? 22 ms
Interfaces
Analog current outputs (max. load):1x 4 mA ... 20 mA (≤ 300 Ω)
Resolution analog outputs:12 bit
Switching outputs (max. output current):1 x PNP (100 mA) 1)
Multi functional inputs:1 x PNP 2)
1) PNP: HIGH = Vs - (< 2 V), LOW = 0 V 2) PNP: HIGH = Vs, LOW = ? 2 V
Mechanics/electronics
Supply voltage Vs:DC 10 V ... 30 V
Power consumption:≤ 1.8 W 1)
Warm up time:≤ 10 min
Housing material:Metal
Connection type:Connector M12, 5-pin
Indication:2 x LED, LC Display
Initialization time:≤ 650 ms
Typ. weightwithout cable:135 g
Residual ripple:≤ 5 Vpp 2)
1) Without load 2) May notfall or exceed short of VS tolerances Limit values, reverse-polarity protected, operation in short circuit protected network, max. 8 A
Ambient data
Enclosure rating:IP 65
Ambient temperature:Operation: -20 ... 55 C
Storage: -40 ... 60 C 1)
Vibration resistance:EN 60068-2-6 / -2-64
Protection class:

II

Shock resistance:EN 60068-2-27
Average service life laser (MTTF at 25 C):50,000 h
Typ. temperature drift:0.25 mm/K
1) Operating temperature atVS = 24 V


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