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QUV - 12 Pages

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Catalogue excerpts

QUV® Accelerated Weathering Testers www.q-lab.com The Most Trusted Name in Weathering

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About Q-Lab Meet Specifications Established in 1956, Q-Lab Corporation is a global provider of products and services to help manufacturers test the weatherability, light stability, or corrosion resistance of their products for industrial, commercial, government, and consumer markets. Our headquarters and manufacturing facility is in Cleveland, Ohio (USA). Q-Lab offices and technology centers are located in Saarbrücken, Germany; Bolton, England; and Shanghai, China. Q-Lab also is supported by a worldwide network of highly technical sales representatives. ✴ Meet customer requirements ✴ Stay ahead...

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Will Your Product Last Outdoors? Find Out Fast With the QUV Weathering Tester Sunlight and moisture cause millions of dollars of material damage every year. The QUV Accelerated Weathering Tester reproduces the damage caused by sunlight, rain and dew. In a few days or weeks, the QUV can reproduce the damage that occurs over months or years outdoors. Don’t Guess When You Can Test The QUV tests materials by exposing them to alternating cycles of UV light and moisture at controlled, elevated temperatures. The QUV simulates the effects of sunlight with fluorescent ultraviolet (UV) lamps, and it simulates...

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Lamp Spectra UV light is responsible for almost all photodegradation of durable materials exposed outdoors. The QUV’s fluorescent lamps simulate the critical short-wave UV and reproduce the physical property damage caused by sunlight. Several different types of UV lamps are available for different applications. See Q-Lab Bulletin LU-8160, Choice of Lamps for application guidelines. Direct Sunlight The UVA-340 spectrum is the best available simulation of sunlight in the UV region, where most of the damage to durable materials occurs. 1.2 Q-Lab supplies the highest quality UV fluorescent lamps available....

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SOLAR EYE® Irradiance Control Changes in light intensity may affect the speed of material degradation. Changes in spectrum may affect both speed and type of degradation. Therefore, a weathering tester must control irradiance to achieve reproducible test results. Controls Irradiance ✴ Monitors light intensity ✴ Maintains preprogrammed intensity ✴ Maximizes repeatability & reproducibility Extends Lamp Life Most QUV models are equipped with SOLAR EYE Irradiance Control. The SOLAR EYE is a precision control system that automatically maintains light intensity through a feedback loop. The controller...

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Irradiance Calibration The CR-10 is an essential accessory to the QUV’s SOLAR EYE system because it ensures the accuracy of the SOLAR EYE and, ultimately, the QUV test results. One CR-10 radiometer can calibrate any number of QUVs. AUTOCAL™ Calibration Calibrating the SOLAR EYE system takes only seconds and is so easy to perform that there is little chance for operator error. A warning light shows when it is time to calibrate. The patented AUTOCAL system automatically transfers the calibration information from the radiometer to the QUV’s SOLAR EYE controller. CR-10 Recalibration The CR-10 should...

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Moisture Simulation The QUV allows two approaches to moisture simulation. For most applications, condensing humidity is the best way to simulate outdoor moisture attack. All QUV models allow a programmed condensation cycle. Because certain applications also require water spray to achieve realistic results, some QUV models can produce both condensation and water spray. Condensation In many outdoor environments, materials are wet more than 12 hours each day. Research indicates that the main cause of this outdoor wetness is dew, not rain. The QUV simulates this using a unique condensation mechanism....

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The QUV Controller Designed to be both functional and easy to use, the QUV controller includes complete self-diagnostic error checking. The controller constantly monitors the status and performance of all systems. It also displays simple warning messages, routine service reminders or performs safety shutdown, as needed. Now every QUV allows the convenient storage of 10 preprogrammed test cycles, including ISO and ASTM exposure cycles. Built-in computerized data logging ensures a quick and easy connection between your QUV and PC or LAN. New automatic lab temperature sensing records the temperature...

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Common QUV Test Cycles Specimen Mounting The QUV conforms to a large number of national, international and industry specifications, including but not limited to: Specimen Holders ASTM D4799 ASTM D6662 ASTM G154 ASTM D4587 EN 927-6 2 flat panels per holder Standard size 3" x 6" (75 mm x 150 mm) Mount 3-D parts with special holders 4"x 6" (100 mm x 150 mm) also available Specimen Capacity ✴ 48 standard size specimens for QUV/se, QUV/spray and QUV/cw ✴ 50 standard size specimens for QUV/basic The QUV can accommodate a variety of 3-D specimens, including automotive parts, lenses, bottles and CDs....

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QUV Models The QUV comes in several models. See the LU-0819 specification sheet for comparative capabilities. Model QUV/se The most popular QUV model features the SOLAR EYE Irradiance Control for precise maintenance of UV light intensity. The QUV/se uses a proven condensation mechanism to simulate outdoor moisture attack. It allows faster, more reproducible testing, longer lamp life, and ISO calibration. With the QUV/se, state-ofthe-art accelerated weathering is available in an affordable tester that is easy to use. Direct Sunlight Model QUV/spray The SOLAR EYE Irradiance Control enables users...

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Model QUV/basic This is a simplified version of the QUV for the lab where economy is critical. Irradiance is controlled by periodic lamp replacement and repositioning. The QUV/basic has a condensation system for moisture simulation. It does not have water spray. ✴ SOLAR EYE Irradiance Control ✴ Condensation ✴ ISO calibration The QUV/basic does not have the SOLAR EYE Irradiance Control system. Consequently, the light intensity cannot be adjusted or calibrated. This means the QUV/basic cannot be used for high irradiance testing. We recommend the QUV/basic for comparative exposures where the test...

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All Q-LAB catalogues and technical brochures

  1. Q-PANEL

    4 Pages

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  2. Q-RACK

    4 Pages

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  3. QUV Summary

    2 Pages

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