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ULTRAVIOLET WorkStar 224 Penlight
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| Click to enlarge image(s) |
The new WorkStar 224 UV ultraviolet penlight is up to 10 times brighter than ordinary UV pen lights thanks to a unique high performance UV LED. With this LED's intense ultraviolet light you can clearly see refrigerant and coolant dye leaks, fluorescent strips imbedded in currency, fluorescent hand stamps, body fluids, any fluorescent material intended for "blacklights" and even scorpions.
| Quantity | Price |
| 1 - 1 |
$41.99 $38.97
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| 2 - 4 |
$41.99 $35.97
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| 5+ |
$41.99 $32.97
|
High Output Professional Ultraviolet Inspection Light - This high output UV inspection light is a state-of-the-art tool designed for professionals who demand performance in UV lighting tools
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| Click to enlarge image(s) |
Do you need a high performance UV tool? This new WorkStar ultraviolet light from Maxxeon offers exceptional UV output in a lightweight, compact package and an UNBREAKABLE LED bulb!
• This tool is designed for daily use by technicians demanding shop, manufacturing or maintenance environments.
• Completely self-contained, the MXN00524 is not tethered to a 12v or 110v external power supply
• This light produces a large volume of UV light in a very compact and lightweight package.
• This compact, 6" inspection light weighs only four ounces, and clips easily and comfortably into any pocket - always at the ready!
• The tough T6 aluminum body has Type II anodizing and is virtually indestructible.
• The anodizing is a bright shade of violet, so it is easily identified.
• Knurled surfaces provide good grip and look great.
• Threaded joints have rubber O-ring seals, so it is water resistant.
• The rugged tailcap switch is rated at 100,000 cycles and is sealed to avoid contamination by dirt and grit.
• Includes on/off switch at front of body to allow a “second look” at potential leak areas
• Includes two CR123 lithium batteries
Perfect for:
• A/C refrigerant dye leak detection
• Fluorescent hand stamp verification
• Dog, cat & rodent urine stain detection
• Restroom cleanliness inspection
• Document and lab analysis
• Crime scene investigation
• Hairline crack detection
• Paint authentication
• Currency verification
• Bacteria detection
• Gem inspection
• UV curing
• Scorpion hunting
We guarantee - no disapointments! If you are not blown away by the performance of this UV inspection light, return it to us for a complete refund!
| Quantity | Price |
| 1 - 1 |
$189.00 $139.97
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| 2 - 4 |
$189.00 $129.97
|
| 5+ |
$189.00 $119.97
|
UV - USES FOR ULTRAVIOLET LIGHT
Leak detection: By adding a UV powder or liquid to a system with a leak and using a UV light source, leaks can be quickly found. Automotive repairmen often use UV leak detection systems for the repair of air conditioner leaks, oil leaks, sunroof leaks, cooling system leaks and oil leaks.
Document and forgery analysis: UV light can sometimes show alterations and erasures to documents. Alterations or changes will sometimes become directly visible when illuminated by UV light. UV light can also be used as an exciter source. Alterations sometimes emit IR light in response to a UV exciter source.
Crowd and access control: Often access to events is controlled using an invisible mark on a hand or card that when illuminated with UV becomes visible (fluoresces). Instead of carrying around heavy and hot black lights, this UV LED penlight can be slipped into a pocket. Alkaline battery life is 70 hours. Readmission and beverage control codes can be quickly viewed with the UV light at nightclubs, amusement parks and controlled events.
Currency and Bill verification: Many currencies contain a UV fluorescing strip.
Rodent detection: The urine of many animals, including cats and rodents will fluoresce under UV. Ultraviolet light itself is invisible to the human eye, but can cause materials such as rodent urine and hair to visibly fluoresce. For sanitation purposes, it is necessary to identify rodent presence in all areas of the food industry, from the large industrial plant to the small retail outlet. This is especially true in older establishments where construction and location make it more difficult to monitor rodent activity. To determine rodent presence, simply illuminate the area in question with a UV light. Dry rodent urine glows a blue-white if fresh to a yellow-white if old. Rodent hair glows blue-white and is easily identified on sacks or intermixed with food grains.
Painting and Rug Repair Detection: Many modern inks, paints and dyes may look identical to old colorings under visible light. However, under UV, differences can be seen because the chemical composition of newer substances usually includes synthetic materials.
Crime scene inspection: Some bodily fluids will fluoresce under UV light. Some people even inspect their hotel sheets before use to see if the beds have been changed. Arson investigators use UV to search for the presence of accelerants.
Scientific, laboratory and educational analysis: UV light can be used in a wide variety of scientific experiments. This UV light is the most portable and rugged small source available. A few examples are: Gel Electrophoresis Photography, Transilluminators for Visualization of Stained DNA, Bacterial Destruction, DNA/RNA Crosslinking to Nylon Membranes, Hybridization Ovens for the Laboratory, Photodocumentation, TLC Thin Layer Chromatography, Ultraviolet Shadowing of Nucleic Acids on Acrilyamide and Agrarose Gels,
UV Curing: UV light is used to cure many special epoxies and glues. Special adhesives require UV light to set up. This is usually accomplished using expensive, plug-in sources.
Gemstone and Mineral Inspection: UV lights are often used to reveal fluorescent activity in gem materials aiding in indentification. For example, To separate the two simulants, determine optic character and birefringence. YAG is singly refractive and tends to have more dispersion than tanzanite or synthetic corundum. Tanzanite can be separated easily from the two simulants by determining specific gravity or by close microscopic evaluation to detect natural or synthetic inclusions. One of the easiest tests to separate the YAG simulant from tanzanite is by looking at the stones under UV fluorescence. YAG glows yellow to red, while the natural tanzanite remains blue. By passing a UV lamp over a lot of stones, you can tell instantaneously if any of the material is YAGAnother example is the identification of natural versus synthetic blue diamonds. Although the UCD synthetic blue diamonds are visually identical to natural type IIb blue diamonds, they may be separated by the careful observation with a loupe or microscope, of inclusion features, color zoning characteristics, as well as graining and strain patterns, which are different between the two.
Dye Penetrant Inspection Using Ultraviolet (UV) Light
Dye penetrant inspection (DPI), also called liquid penetrant inspection (LPI), is a widely applied and low-cost inspection method used to locate surface-breaking defects in all non-porous materials (metals, plastics, or ceramics). Penetrant may be applied to all non-ferrous materials, but for inspection of ferrous components magnetic-particle inspection is preferred for its subsurface detection capability. LPI is used to detect casting and forging defects, cracks, and leaks in new products, and fatigue cracks on in-service components.
Principles
DPI is based upon capillary action, where low surface tension fluid penetrates into clean and dry surface-breaking discontinuities. Penetrant may be applied to the test component by dipping, spraying, or brushing. After adequate penetration time has been allowed, the excess penetrant is removed, a developer is applied. The developer helps to draw penetrant out of the flaw where a visible indication becomes visible to the inspector. Inspection is performed under ultraviolet or white light, depending upon the type of dye used - fluorescent or nonfluorescent (visible).
Materials
Penetrants are classified into sensitivity levels. Visible penetrants are typically red in color, and represent the lowest sensitivity. Fluorescent penetrants contain two or more dyes that fluoresce when excited by ultraviolet (UV-A) radiation (also known as black light). Since Fluorescent penetrant inspection is performed in a darkened environment, and the excited dyes emit brilliant yellow-green light that contrasts strongly against the dark background, this material is more sensitive to small defects.When selecting a sensitivity level one must consider many factors, including the environment under which the test will be performed, the surface finish of the specimen, and the size of defects sought. One must also assure that the test chemicals are compatible with the sample so that the examination will not cause permanent staining, or degradation. This technique can be quite portable, because in its simplest form the inspection requires only 3 aerosol spray cans, some paper towels, and adequate visible light. Stationary systems with dedicated application, wash, and development stations, are more costly and complicated, but result in better sensitivity and higher sample through-put.
Inspection steps
This article may need to be wikified to meet Wikipedia's quality standards. Please help by adding relevant internal links, or by improving the article's layout. (October 2008) Below are the main steps of Liquid Penetrant Inspection:
1. Pre-cleaning:
The test surface is cleaned to remove any dirt, paint, oil, grease or any loose scale that could either keep penetrant out of a defect, or cause irrelevant or false indications. Cleaning methods may include solvents, alkaline cleaning steps, vapor degreasing, or media blasting. The end goal of this step is a clean surface where any defects present are open to the surface, dry, and free of contamination. Note that if media blasting is used, it may "work over" small discontinuities in the part, and an etching bath is recommended as a post-bath treatment.
2. Application of Penetrant:
The penetrant is then applied to the surface of the item being tested. The penetrant is allowed time to soak into any flaws (generally 5 to 30 minutes). The dwell time mainly depends upon the penetrant being used, material being testing and the size of flaws sought. As expected, smaller flaws require a longer penetration time. Due to their incompatible nature one must be careful not to apply solvent-based penetrant to a surface which is to be inspected with a water-washable penetrant.
3. Excess Penetrant Removal:
The excess penetrant is then removed from the surface. Removal method is controlled by the type of penetrant used. Water-washable, solvent-removable, lipophilic post-emulsifiable, or hydrophilic post-emulsifiable are the common choices. Emulsifiers represent the highest sensitivity level, and chemically interact with the oily penetrant to make it removable with a water spray. When using solvent remover and lint-free cloth it is important to not spray the solvent on the test surface directly, because this can the remove the penetrant from the flaws. This process must be performed under controlled conditions so that all penetrant on the surface is removed (background noise), but penetrant trapped in real defects remains in place.
4. Application of Developer:
After excess penetrant has been removed a white developer is applied to the sample. Several developer types are available, including: non-aqueous wet developer, dry powder, water suspendible, and water soluble. Choice of developer is governed by penetrant compatibility (one can't use water-soluble or suspedible developer with water-washable penetrant), and by inspection conditions. When using non-aqueous wet developer (NAWD) or dry powder the sample must be dried prior to application, while soluble and suspendible developers are applied with the part still wet from the previous step. NAWD is commercially available in aerosol spray cans, and may employ acetone, isopropyl alcohol, or a propellant that is a combination of the two. Developer should form a semi-transparent, even coating on the surface.The developer draws penetrant from defects out onto the surface to form a visible indication, a process similar to the action of blotting paper. Any colored stains indicate the positions and types of defects on the surface under inspection.
5. Inspection:
The inspector will use visible light with adequate intensity (100 foot-candles is typical) for visible dye penetrant. Ultraviolet (UV-A) radiation of adequate intensity (1,000 micro-watts per centimeter squared is common), along with low ambient light levels (less than 2 foot-candles) for fluorescent penetrant examinations. Inspection of the test surface should take place after a 10 minute development time. This time delay allows the blotting action to occur. The inspector may observe the sample for indication formation when using visible dye. Also of concern, if one waits too long after development the indications may "bleed out" such that interpretation is hindered.
6. Post Cleaning:
The test surface is often cleaned after inspection and recording of defects,especially if post-inspection coating processes are scheduled.
Features
The flaws are more visible, because:
The defect indication has a high visual contrast (e.g. red dye against a white developer background, or a bright fluorescent indication against a dark background).
The developer draws the penetrant out of the flaw over a wider area than the real flaw, so it looks wider.
Limited training is required for the operator — although experience is quite valuable.
Low testing costs.
Proper cleaning is necessary to assure that surface contaminants have been removed and any defects present are clean and dry. Some cleaning methods have been shown to be detrimental to test sensitivity, so acid etching to remove metal smearing and re-open the defect may be necessary.
Penetrant dyes stain cloth, skin and other porous surfaces brought into contact. One should verify compatibility on the test material, especially when considering the testing of plastic components.
Further information on inspection steps may be found in industry standards (e.g. the American Welding Society, American Society for Testing and Materials, the British Standards Institute, and the Society for Automotive Engineers).
"Dye penetrant inspection." Wikipedia, The Free Encyclopedia. 4 Feb 2009, 05:33 UTC. 14 May 2009
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