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Basler r2L4096-84cm machine vision camera
BaslerLine scan cameras
  • Rosepetal compatible
  • Recommended by AIS Vision

Basler racer 2 S r2L4096-84cm

r2L4096-84cm

The r2L4096-84cm is part of the Basler racer 2 S family and uses a Gpixel GL3504 monochrome linear CMOS sensor with 4096 pixels at 3.5 x 3.5 um pixel size (14.34 mm line). It reaches a maximum line rate of 84.4 kHz in free-run mode with selectable 8, 10, or 12-bit output and a single CXP-12 CoaXPress link (2.5-12.5 Gbps). The compact C-mount housing is powered via Power over CoaXPress (PoCXP) at 24 VDC, typically consuming about 3.3 W, and supports GenICam and CoaXPress 2.0. It is rated IP30 and operates from -10 to 50 degrees C.

Brand
Basler
Camera type
Line scan
Interface
CoaXPress CXP-12 (1x, 2.5-12.5 Gbps)
Horizontal resolution
4096 px (4k)
Mono / color
Mono
Sensor manufacturer
Gpixel
Sensor model
Gpixel GL3504
Shutter
Global shutter
Line rate
84.4 kHz (free run)
Mount
C-mount
Sensor size
14.34 mm line length
Pixel size
3.5 x 3.5 um
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Technical overview

The Basler racer 2 S r2L4096-84cm is a monochrome line scan camera, meaning it captures one 4096-pixel line at a time and builds a continuous image as the object passes beneath it. That single linear row sits on a Gpixel GL3504 CMOS sensor with 3.5 x 3.5 um pixels across a 14.34 mm line length. In practice this geometry is what makes line scan the tool of choice for web and roll goods, rotating cylinders, and anything moving on a conveyor: there is no frame boundary and no fixed field height, so you image a continuously moving surface at uniform resolution without the seams or motion smear you would get stitching area-scan frames. The 4k width gives you 4096 pixels to spread across your scan width, so cross-web resolution is simply your field width divided by 4096 (for example, a 200 mm web yields roughly 49 um per pixel).

The defining performance number is the 84.4 kHz maximum line rate in free-run mode. That is how many lines per second the camera can expose and read out, and together with your encoder-driven web speed it sets the achievable down-web resolution: faster line rates let you keep square pixels at higher material speeds, or hold a given speed while increasing resolution. The sensor uses a global shutter, so every pixel in the line integrates over the same exposure window, which keeps edges crisp on fast-moving product. Output is selectable at 8, 10, or 12 bits, letting you trade bandwidth for grayscale depth: 8-bit for high-throughput defect and presence checks, 10 or 12-bit when subtle contrast in surface or print inspection needs the extra tonal range. Being monochrome, the sensor uses its full pixel area for luminance, which favors sensitivity and fine-detail edge contrast over color discrimination, the usual trade for surface, code, and OCR work.

Connectivity is a single CXP-12 CoaXPress link running at 2.5 to 12.5 Gbps, which is what allows a 4k line at 84.4 kHz to leave the camera over one coax cable at full rate. CoaXPress also carries Power over CoaXPress (PoCXP) at 24 VDC down the same cable, so the camera needs only one connection for data, power, trigger, and control, simplifying cabling on a moving gantry or scanner head. The camera follows GenICam and CoaXPress 2.0, so it drops into standard frame grabbers and SDKs that speak those standards. Physically it is a compact C-mount housing at 55.5 x 29 x 29 mm and 85 g, drawing about 3.3 W. The C-mount accepts standard line scan optics, but note that a 14.34 mm line is larger than typical C-mount area-scan formats, so the lens must cover that line length without vignetting or fall-off at the edges. IP30 rating and a -10 to 50 C operating range place it in a clean factory enclosure rather than a washdown environment.

Best for

  • Continuous web and surface inspection of printed media, film, foil, paper, or coated metal where seamless, uniform-resolution imaging of moving material is required
  • High-throughput defect inspection on fast conveyors and roll-to-roll lines, using the 84.4 kHz line rate to hold square pixels at production speed
  • Print quality and OCR/OCV verification where 10 or 12-bit grayscale depth resolves subtle contrast in characters and graphics
  • Traceability and code reading on continuously moving product, where line scan avoids the frame seams of stitched area-scan capture
  • Dimensional measurement across a web or sheet, using the 4096-pixel line for consistent cross-web resolution

Selection notes

  • Cross-web resolution is fixed by field width divided by 4096 pixels; size your scan width and lens magnification so the smallest defect spans at least a few pixels
  • Down-web resolution depends on matching line rate to material speed, normally via an encoder; verify your line speed stays within the 84.4 kHz ceiling at the resolution you need
  • This is a CoaXPress CXP-12 camera, so it requires a compatible CXP frame grabber; PoCXP support means the same coax delivers the 24 VDC power, but confirm your grabber supplies it
  • Specify a line scan lens that covers the full 14.34 mm line length on C-mount without edge fall-off; standard area-scan C-mount lenses may not illuminate the whole line
  • Line scan needs strong, uniform illumination concentrated on the scan line because each line gets only a short exposure at high line rates; plan a high-intensity line light accordingly
  • IP30 rating and -10 to 50 C range suit a controlled enclosure, not direct washdown or harsh outdoor exposure; budget for housing if the environment is dusty or wet

Specifications: General
BrandBasler
Camera typeLine scan

Specifications: Sensor
Horizontal resolution4096 px (4k)
Mono / colorMono
Sensor manufacturerGpixel
Sensor modelGpixel GL3504
ShutterGlobal shutter
Sensor size14.34 mm line length
Pixel size3.5 x 3.5 um

Specifications: Performance
Line rate84.4 kHz (free run)

Specifications: Interface
InterfaceCoaXPress CXP-12 (1x, 2.5-12.5 Gbps)
ProtocolsGenICam, CoaXPress 2.0

Specifications: Optics
MountC-mount

Specifications: Electrical
PowerPower over CoaXPress (PoCXP), 24 VDC
Power consumption3.3 W

Specifications: Environment
IP ratingIP30
Operating temperature-10 to 50 °C

Specifications: Mechanical
Dimensions55.5 x 29 x 29 mm
Weight85 g

Frequently asked questions

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