Preparing Granular and Powdery Samples | Arizona MAX-5000XL manual

6.2. Preparing Granular and Powdery Samples

The MAX 5000XL can be used to test a wide range of products from finely ground, low-moisture powders to high-moisture slurries. For best results, the sample should be of a uniform particle size distributed evenly over the sample pan. If sample material is collected into a jar or sampling bag, shake the jar or bag to produce a uniform mixture. Liquid samples should also be mixed or shaken to ensure a more homogeneous mixture. Large chunk samples, such as charcoal or cookies, should be crushed or ground to smaller pieces approximately 1/4" or less in diameter. For best results, take care not to over-grind the sample, causing it to heat up and causing moisture loss.

Some samples, such as dried vegetables, may also need to be ground. The smaller pieces will easily release moisture during testing, leading to shorter test times and more repeatable results. Solid, granular sample material should be shaken onto the pan from a spoon; shaking sample directly from the collection jar will usually deposit only the larger granules, not a representative mixture. Liquid samples or slurries can be spooned or poured onto the sample pan; however, a pipette or sampling straw will collect a uniform mixture of the sample. All samples should be evenly distributed over the sample pan.

6.3. Preparing and Testing Liquid Samples

Some liquid samples will dry slowly, even at high temperatures. Drops or puddles may form on the pan and dry slowly as the sample concentrates. A skin may form which limits evaporation from the interior. Long test times (greater than 25 minutes) and low percent moisture (or high percent solids values) suggest incomplete drying. Pre-dried glass-fiber filter paper and flat-bottomed pans are recommended to successfully test samples such as these.

The glass-fiber filter paper, AZI P/N 990-0003, serves as a support for the liquid sample. The sample is absorbed through the paper for more even and rapid evaporation to reduce test times. Waffle-bottomed sample pans are not recommended for use with filter paper. The liquid sample may soak through the filter paper and collect in puddles in the pan's depressions. Flat-bottom pans are available from AZI as P/N 990-0010. Call AZI parts sales at 800-528-7411 or 602-470-1414 to order.

Occasionally, some samples cannot be absorbed into the filter paper. At the end of the test, examination of the sample pan shows the sample sitting high above the filter paper with a thick crust. The crust may be singed from the heat or even show bubbling where vapor has been trapped beneath the surface. %SOLIDS results will be high or %MOISTURE results will be low. Samples such as these are treated differently: After the sample has been added to the sample pan, remove the pan from the test chamber and place it onto a flat surface. Grasp part of the filter paper (tweezers are suggested) and flip it over so that the sample lies between the pan and the paper. Squash the sample with a flat-bottom glass or jar to a uniform layer. Return the sample pan to the test chamber and close the lid. The upper filter paper surface absorbs moisture from the sample and minimizes bubbling and spattering to produce more accurate, reproducible results.

AZI Customer Service 800-528-7411 or 602-470-1414

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MAX-5000XL specifications

The Arizona MAX-5000XL is a premier flatbed printer designed for high-volume printing applications, renowned for its versatility and cutting-edge technology. This remarkable machine is part of the Arizona series from Océ, a brand recognized for its innovation in digital printing solutions. The MAX-5000XL is specifically engineered to deliver high-quality graphics across various substrates, making it a favorite among businesses in signage, graphics, and packaging industries.

One of the standout features of the MAX-5000XL is its expansive printing capacity. With a maximum bed size of 126 x 98 inches, it can accommodate large sheets, enabling the production of oversized prints without the need for cumbersome tiling or trimming. This feature not only saves time but also enhances operational efficiency, allowing businesses to streamline their workflow.

The MAX-5000XL employs advanced UV printing technology, which uses ultraviolet light to cure the ink instantly as it is printed. This results in vibrant colors, sharp details, and improved durability, making prints resistant to scratches, chemicals, and UV exposure. The printer’s ink system features highly pigmented inks that produce stunning images, offering a wide color gamut that is perfect for demanding graphical applications.

Moreover, the printer is equipped with a sophisticated high-resolution imaging system that delivers outstanding print quality at resolutions up to 1440 dpi. This level of detail ensures that even the finest elements of a design are replicated with precision. The machine also incorporates a variable dot technology that optimizes ink droplet size based on the image content, further enhancing the overall image quality.

Another notable characteristic of the Arizona MAX-5000XL is its user-friendly interface. The printer features intuitive software that simplifies setup, operation, and maintenance, enabling operators to focus more on production rather than troubleshooting. The machine also supports automated printing features, reducing manual intervention and helping to improve turnaround times.

In addition, the MAX-5000XL is designed with sustainability in mind. Its low-energy LED UV curing technology not only reduces energy consumption but also minimizes the environmental impact of the printing process. The ability to print on a wide range of substrates, including rigid and flexible materials, also expands the creative possibilities for designers while offering greater options for businesses looking to cater to diverse markets.

In summary, the Arizona MAX-5000XL is a state-of-the-art flatbed printer that combines large-format capabilities, exceptional print quality, and advanced technology. Its user-friendly features and emphasis on sustainability make it an ideal choice for businesses seeking to elevate their printing operations to new heights.