Perceptive Instruments Ltd.

Version SpeckCheck 2 - A Powerful, Professional Analysis Tool


SpeckCheck 2 is a powerful system for the measurement of dirt, residual ink and other contaminants in pulp, paper and paperboard. It combines the latest computerised scanning technology with sophisticated software to provide a versatile paper inspection tool for research and quality control.

Though primarily designed for dirt and ink measurement, SpeckCheck 2 also quantifies fibres, shives, pin holes and stickies. Other paper characteristics that can be tested include print quality and mottle.

SpeckCheck 2 conforms to TAPPI Specifications T 213 and T 563 (EBA). SpeckCheck 2 is developed under our quality management system which has gained ISO 9001:2008 approval from a UKAS accredited certification body. We take pride in the quality of our products and the ongoing support we provide to our customers.

  • Detects dirt, ink and other contaminants in pulp and paper
  • Comprehensive measurements include area, intensity and shape
  • Conforms to TAPPI specifications T 213 and T 563 (EBA)
  • Displays detected objects and full grey-scale image
  • Scanned regions adjustable for circular and rectangular samples
  • Multiple configurations optimised for each applcation
  • Definable size classification and statistical summary
  • Direct OLE links to Excel spreadsheets

Fast, highly reproducible measurements for quality control and research applications.

Paper samples are placed face down on the desk-top scanner which links to the system computer. SpeckCheck 2 scans the sample to capture a high resolution image showing detected dirt, ink or shives highlighted in red. These objects are rapidly measured and classified into a size distribution table which is displayed on screen.

The SpeckCheck 2 program can be accessed at user level, or supervisor level which is password protected. Supervisors have un-restricted access to the program allowing them to create configurations optimised for each application or test procedure.

In routine use, a single key press or click of the mouse starts the scanning and measurement cycle. The captured image of the sample is held in the computer’s memory allowing any part to be displayed on screen. You can pan and scroll to any part of the image and zoom in to examine any detected object in detail. Furthermore, measurements for an individual object are shown by pointing to it with the cursor.

Measurements and results

SpeckCheck 2 measures area, diameter, length, width, equivalent black area, grey level intensity and many other parameters within seconds. Special image processing algorithms ensure accurate detection and measurement even where there are variations in paper brightness and formation.

SpeckCheck 2 classifies each particle into a customised size distribution table having up to 50 classes in any progression. Unwanted objects such as shives or fibres can be screened out according to their size, shape or intensity. Size distribution tables are available for standard test methods for visible dirt and you can create others to suit your procedures. SpeckCheck 2 also provides statistical analysis based upon accumulated data including, total count, parts per million, scanned area and count per sq.m.

Results may be printed directly in user-formatted tables including a Title and Headings such as Machine number, Grade, Reel etc. SpeckCheck 2 is closely integrated with Microsoft Excel allowing automatic transfer of data to the spreadsheet. This offers complete flexibility regarding tabular and graphical presentation of results. Data may also be saved in other industry standard file formats for transfer to alternative spreadsheets, statistics programs or information management systems for further analysis.

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