A method, design and operation principle of new devices for analysis of dust-like materials are presented. The concept of integrated models and designs is based on a combination of complementary methods and approaches for analysis of dust-like materials. This work is devoted to problems of evaluation of various logical models and device operation principles. Application of devices proposed in this research can significantly reduce an analysis duration in comparison with other well-known methods. One of the proposed devices utilizes sedimentometry method for size-based particle separation, while the other device implements particle separation according to their velocities in the air. It is demonstrated that equation of parameters relationship properly developed for a new device leads to non-zero estimation errors. Thus, problems of size evaluation for particles and fractions, problems of control and diagnostics can be solved within a framework that goes beyond traditional approach.