The QUV Accelerated Weathering Tester simulates the damaging effects caused on surfaces of products, by sunlight, rain and dew. Materials are exposed to alternating cycles of light and moisture at controlled elevated temperatures. The effect of sunlight with fluorescent ultraviolet lamps. It simulates dew and rain with condensing humidity and water sprays. Exposure conditions can be varied to simulate various end-use environments.

The QUV series of fluorescent testers are the most widely used in the world.

QUV can quickly reproduce the damage that occurs to exposed surfaces. These could comprise : fading, color change, gloss loss, chalking, cracking, crazing, hazing, blistering, strength loss, embrittlement, oxidation, etc.

QUV test data can help designers in the selection of new materials, the improvement of existing materials, or the determination of how the changes in formulation affect product durability.

The QUV helps to determine the longevity of products in harsh environments.

QUV Benefits

Conforms to ISO, ASTM, national and international standards and many industrial specifications. Economical and saves operating costs. Easy maintenance and calibration. Easy to use, install, and programme. Complete self-diagnostic error checking to monitor the performance of all systems. Timely alerts and warning messages.

QUV Features

• Totally Automated
• Menu driven diagnostics
• 24/7 operation
• Unlimited cycles
• Completely user serviceable with easy access to all parts
• Easy to use specimen holders and retaining rings
• Requires little floor space
• Test Duration Timer settable for: stop test, sound alarm, display message, all of the above or do nothing
• Digital display of test conditions and times; allows fast, easy, flexible programming
• Uses ordinary water, because the water is automatically distilled in the vaporizing - condensing process
• Long Heater life and easy cleaning facility
• Water level control : easy, visible and external
• Extremely simple, rugged machine with very few potential failure

Sunlight Simulation

The QUV uses fluorescent ultraviolet lamps to simulate the damaging effects of sunlight. Different types of lamps are available and these lamps produce mainly ultraviolet rather than visible or infrared light. The lamps differ in the total amount of UV energy emitted and in their wavelength spectrum, and they give different test results. The choice of the lamp depends on the type of test that is to be run, the standard and the damage sought to be simulated. The lamps available are : QFS-40, UVA-340, UVA-351, UVB-313.