DCM Sistemes DKL1813A Darkfield Light

Electrically the light is simple to design in. It runs from a 24 VDC supply (+/-3%) and draws up to about 5 W in continuous Type C mode, with the exact figure colour-dependent (roughly 2.9-5 W across the wavelength options). The standard connection is a 2-pole flying-lead cable (180 mm, brown = +24 V, blue = 0 V), so in its continuous form it needs no controller at all, just a regulated 24 V rail. The same optical head is offered in four operating variants: Continuous (C), Powered (P), Strobe (S), and Intelligent iBlueDrive (i). The strobe variant requires an external strobe controller, while the iBlueDrive variant integrates intelligent strobe/overdrive driving and switches to a 3-pole aerial male inline connector. That spread lets the same geometry serve a steady continuous setup or a high-brightness, motion-freezing pulsed setup on a moving line.

Wavelength is selectable independently of the darkfield geometry: the part can be ordered in White, Blue 470 nm, Green 525 nm, Red 630 nm, IR 850 nm or UV 400 nm. Because darkfield already converts surface relief into contrast through angle, the wavelength choice is mainly used to fine-tune contrast against a specific material or to drive fluorescence (UV) or penetrate certain coatings (IR), rather than to create the defect contrast itself. The housing is rated IP40, which is suited to clean, enclosed inspection stations rather than washdown or heavy-spray environments, and the unit is rated for 0-40 C ambient. At 340 g it is light enough to mount on a simple bracket or a compact gantry directly over the inspection point.