48 Royal Street
Quincy, MA 02170















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Surface Inspector - DRLSI Series
Darkfield Ring Light with Large Diameter Magnifying Lens
3" Field of View. Embedded electronics. Adjustable light intensity
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Surface Inspector Features:
Low angle led light from the ring light enhances nicks, scratches, edges, indented or embossed features on flat surfaces and creates
contrast between reflective and non reflective areas of the surface. Magnifying power of the lens lets you detect even minute
imperfections of the inspected surface. High intensity, diffuse, uniform low angle illumination. Washable led lights, suitable
for industrial environment. Embedded electronics (no external controller required). Adjustable intensity. Extremely low heat
dissipation. 12 volt models come with "banana plug" socket and 110 VAC to 12 VDC converter. 24 volt models come with
"piggy tail" shielded cable and strain relief or with sealed receptacle and detachable cordset.
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Darkfield Illumination:
In darkfield illumination, low angle led light rays are almost parallel to the inspected surface or object. When the surface is uniform
and flat, there is nothing to diffract, refract or reflect the light rays toward the observer, so the surface appears dark or uniformly
illuminated. Any imperfection, defect or aberration of this otherwise flat and smooth surface will result in forming brighter or darker
images superimposed onto this uniform background.
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Environmental:
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Electrical:
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Operating Temperature:
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-10 deg C to +45 deg C
(14 to 113 deg F)
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I [mA] @ 24 VDC
I [mA] @ 12 VDC
Number of LEDs
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200
380
36
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Color Codes and Wavelengths
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Ordering :
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Color
Red
Green
Blue
White
UV
IR
Non-Standard
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Code
660
530
470
WHT
395
850
Specify Wavelength
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Wavelength
660 nm
530 nm
470 nm
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395 nm
850 nm
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Series - Color Code - Supply Voltage - Power Connection
Example: DRLSI-660-24-PT
Power Connection Options:
PT - "piggy tail" (6 ft shielded cable with strain relief)
CS - sealed connector and cordset with 6 ft shielded cable
BP - "banana plug" with AC/DC converter (12 volt models only)
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