DT20-P254B Displacement Measurement Sensors – SICK Sensor

Name: DT20-P254B Displacement Measurement Sensors - SICK Sensor - INOSAKI
SKU: SICK-1041278
Price: 1143.75 USD
Availability: InStock

$ 1,143.75

High-performance SICK 1041278 (DT20-P254B) laser distance sensor. Accurate 50–150mm range, ±0.5mm linearity, and analog output for precise industrial automation.

SKU SICK-1041278 Category Laser Distance Sensors - SICK DT20 Hi

Product Overview

Product Family: DT20 Hi (High Precision Displacement)
Model Name: DT20-P254B
Part Number: 1041278
Measuring Range: 50 mm to 150 mm
Output Type: 1 x Analog (4 mA … 20 mA) and 1 x PNP (Switching)
Housing Material: Rugged zinc die-cast with PMMA lens
Interface: Integrated LC display with intuitive setup keys
Connection: M12, 5-pin male connector (swivel unit)
Enclosure Rating: IP65

Product Description

The SICK DT20-P254B (Part No. 1041278) is a premium laser distance sensor designed for high-precision displacement measurement in demanding industrial environments. As part of the DT20 Hi series, it utilizes advanced CMOS triangulation technology to provide reliable distance measurements regardless of object color or surface texture. This sensor features a measuring range of 50 mm to 150 mm with a remarkable linearity of ±0.5 mm, ensuring exceptional accuracy for quality control and positioning tasks.

Its robust metal housing and IP65 rating make it suitable for harsh conditions, while the integrated LC display allows for immediate visual feedback and effortless parameterization. The DT20-P254B offers a versatile 4 mA to 20 mA analog output and a programmable PNP switching output, both of which are freely scalable to meet specific application needs. With features like adjustable moving averages and a high-visibility red laser (Class 2), it simplifies alignment and provides consistent performance across various industries. Whether used for thickness measurement or precise component detection, the DT20-P254B delivers the high-speed, non-contact performance required for modern automated systems.

Key Performance Features

High Linearity: Accuracy of up to ±0.5 mm for critical displacement measurements.
Color Independence: CMOS receiving element ensures precision on dark, shiny, or multi-colored surfaces.
Red Laser Precision: Class 2 visible red light for easy alignment and detection of very small objects.
Scalable Outputs: Freely adjustable 4–20 mA analog range and programmable PNP switching threshold.
Advanced Settings: Customizable moving average (fast/medium/slow) to optimize response time versus stability.
User-Friendly Commissioning: Fast setup via on-device buttons, numerical teach-in, or remote functionality.
Industrial Durability: Tough zinc die-cast housing provides long-term reliability in vibrating or dusty environments.

Ideal Applications

Quality Control: Checking part dimensions and manufacturing tolerances on assembly lines.
Thickness Measurement: Real-time monitoring of sheet metal, plastic plates, or paper thickness.
Robotic Positioning: High-accuracy distance feedback for robotic grippers and pick-and-place units.
Winding/Unwinding Control: Precise monitoring of roll diameter for label film or packaging materials.
Deformation Testing: Detecting warping, bending, or structural deviations in components.
Level Sensing: Non-contact monitoring of fill levels in small containers or feeder bowls.

Mechanics/electronics

Supply voltage V_s	DC 10 V … 30 V ¹⁾
Ripple	≤ 5 V_pp ²⁾
Power consumption	≤ 1.8 W ³⁾
Warm-up time	≤ 10 min
Housing material	Metal (zinc diecast)
Window material	Plastic (PMMA)
Connection type	Male connector, M12, 5-pin, swivel connector unit
Indication	LC display, 2 x LED
Weight	135 g
Dimensions (W x H x D)	24.3 mm x 72.4 mm x 54.1 mm
Enclosure rating	IP65 (EN 60529)
Protection class	II

¹⁾ Limit values, reverse-polarity protected, operation in short-circuit protected network: max. 8 A.
²⁾ May not fall short of or exceed V_S tolerances.
³⁾ Without load.

Performance

Measuring range	50 mm … 150 mm ¹⁾
Target	Natural objects
Repeatability	≥ 0.125 mm ¹⁾ ²⁾ ³⁾
Linearity	± 0.5 mm ³⁾ ⁴⁾
Response time	≥ 2.5 ms ²⁾
Measuring frequency	≤ 400 Hz ¹⁾
Output time	≥ 2.5 ms
Light source	Laser, red visible red light
Laser class	2 (IEC 60825-1:2014, EN 60825-1:2014)
Typ. light spot size (distance)	2 mm x 4 mm (150 mm)
Additional function	Set moving average fast/medium/slow, switching mode: distance to object (DtO), teach-in of digital output, invertable digital output, teach-in of analog output, Invertable analog output, Multifunctional input: laser off / external teach-in / deactivated, switch-off display, lock user interface

¹⁾ 6 % … 90 % remission.
²⁾ Dependent on the set average or sensitivity.
³⁾ When calibrated in the application regularly.
⁴⁾ 90 % remission.

Interfaces

Digital output
Number	1 ¹⁾
Type	PNP
Maximum output current I_A	≤ 100 mA

Analog output
Number	1
Type	Current output
Current	4 mA … 20 mA, ≤ 300 Ω
Resolution	12 bit

Multifunctional input (MF)

1 x MF ²⁾

¹⁾ PNP: HIGH = V_S – (< 2 V) / LOW = < 2 V; NPN: HIGH = < 2 V / LOW = V_S.
²⁾ MF can be used as laser-off, external teach-in or deactivated.

Ambient data

Ambient temperature, operation	–20 °C … +55 °C, Operating temperature at V_S = 24 V
Ambient temperature, storage	–40 °C … +60 °C
Temperature drift	0.25 mm/K ¹⁾
Typ. Ambient light immunity	Artificial light: ≤ 3,000 lx Sunlight: ≤ 10,000 lx
Vibration resistance	EN 60068-2-6, EN 60068-2-64
Shock resistance	EN 60068-2-27

¹⁾ 0,5 mm/K: for distances > 600 mm.