The Powder Testing System PT2C, equipped with a 3-CCD-chip colour camera, counts and classifies contaminations. Colour classes can be defined with the "teaching" tool to detect discolorations and foreign bodies which are different in colour from the bulk material, such as PVC, PP, PE etc.

The system is capable of detecting contamination and discoloured powder particles (pink, yellow, brown, black etc.). These irregularities are sorted into different class sizes which are completely user definable. Furthermore, it is possible to define alarm limits. If these are exceeded, a potential-free contact is activated.

The PT2C can be used for laboratory purposes as well as for on-line inspection. The powder can be submitted as a sample or it can be withdrawn from the production line by creating a bypass. Using a bypass system gives the user the advantage of direct inspection of the material during the production process. This allows faster response in order to prevent offspec production.

The software offers a multitude of configuration possibilities, enabling the user to adapt the system exactly to individual requirements.

The inspection can be observed on a monitor and visible defects marked and indexed. Images of special importance can be stored and the data presented in a variety of graphs and tables. A colour printer documents the results. Configuration data, software settings and duration of the inspection can be easily accessed. This facilitates later or long-term evaluation.

The Powder Testing System PT2C has a rated capability of inspecting up to 1 kg/hour. The actual throughput is dependent on the physical characteristics of the powder.

The system can be integrated in any internal data processing system using an existing software interface, e.g. Ethernet.

The unit is robust and maintenance-friendly.

Performance Characteristics

• Controls
  Menu-controlled Windows interface and easy customisation
• Optimum lighting technology
  Use of special lighting technology, therefore independent of the material.
• Real-time colour image analysis
  Fast evaluation and representation of the measurement results in various forms.
  Table with size classifications, time evolution, mosaic view, histogram, distribution.
• Inspection synchronisation
  Transport and inspection are co-ordinated exactly to one another.
• Tables
  Tabular display according to size, shape and colour
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  Mosaic display
  Continuous display of the detected deviations as real images.
• Features graphics
  Graph of the distribution over sizes, shapes and colours.
• Time characteristic
  Graph of the distribution of the characteristics according to time evolution
• Process synchronisation
  Coupling the inspection system with external appliances, e.g. BDE or SAP interface.
• Interfaces for external appliances
  Alarm interface
• Open database
  The record data can be converted into all standard file formats.

Scope of application

• Granular (non-sticky) powder and granules