Screening solutions supplier W.S. Tyler says its Computerized Particle Analysis (CPA) System offers more precise particle measurement than traditional sieve analysis, and is ideal for operations that perform 15-20 or more sieves per day. CPA technology uses a digital line camera to measure particles up to 10 times faster than conventional sieve methods.

With up to 20,000 scans per second, the CPA’s high-resolution line camera analyzes particles as small as 10 microns, capturing particle shape and size and recording the quantity. This eliminates manual calculations and operator error, while reducing quality assurance costs. The result is more production of higher dollar value material and less waste.

CPA equipment is available in multiple sizes, the largest of which can accurately measure material up to 15.5 in. (400 mm) in size. Operations can use it on-site or in traveling labs, as well as online and inline. Using an automatic belt sampler, CPA can be used online and automated to run operator-free with scheduled or continuous sampling. One test sample takes just three to five minutes. If material is found to be out of spec, the CPA can be programmed to sound an alarm, stop the process or even change parameters on the processing equipment.

Inline analysis is used in applications where quality control of the complete material stream is required and sample testing is not sufficient. All material gets analyzed so the inline unit is more commonly used at low production rates. All CPA models use Microsoft Windows-friendly software for reading, recording, calculating, analysis and display of the sample results.