![]() ![]() The instrument accommodates the widest variety of sample shapes, sizes, textures and opacity. The instrument comes with various types of specialized holders.Ī sphere-based laboratory spectrophotometer from Gretag Macbeth, the Color i 5, offers unprecedented ease and flexibility for accurate measurement, setting a new standard in the mid-range instrument class. Caps can be tested using the reflective mode. The final product can be tested using the instrument’s transmission mode to test for color, yellowness and haze. ![]() The colorimeter can measure any degree of yellowness or the transparency of colorless preforms. Preform color can also be evaluated prior to re-heat blow molding. Testing preforms during a product changeover can reveal any batch-to-batch variation in color, as well as determine the thermal history of the equipment and effect of temperature on the resin. Because of non-uniform shape and translucence, pellets must be measured in a transmission cell with a 50 mm path length. Raw material inspection can be done on color pigments, raw resin or compounded materials. Additional filters provide spectral energy distribution that can be adjusted to meet specific applications. The exposure system consists of an air-cooled xenon lamp and a coated quartz glass segment. In addition to controlling the spectral energy distribution and irradiance levels, the enhanced Suntest CPS+ and XLS+ models precisely control other important test parameters such as temperature and wetting which have additional influences on the degradation of materials. The basic manual control model offers high-quality, affordable light testing, while the enhanced versions (designated by a +), come with microprocessor control, facilitating test condition pre-setting for up to six programmed tests and hands-off operation. Two different models, the Suntest CPS, and the Suntest XLS, each come with a basic and enhanced version. The Suntest design supplies uniform irradiance to an exposure area with proven xenon lamp technology that ensures long lamp life and close simulation to sunlight. State-of-the-art benchtop light testing is provided by the Suntest line of accelerated light/heat exposure systems. The multi-point sensor calibration also improves the instrument’s performance by removing sample size dependency. The analyzer comes with expanded linearity and includes a NIST traceable multi-point sensor calibration across the entire range of the sensor (100 micro-grams to 20,000 micro-grams) as part of its software. The Vapor Pro is the latest addition to the company’s line of Computrac moisture-specific analyzers. ![]()
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