Bekk Roughness 1 Head Tester PTA - OpTest

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Bekk Roughness 1 Head Tester PTA

For measuring the smoothness of the papers according to Bekk method. The sturdy, stable instrument is equipped with a built-in industrial Electronics and a touchscreen. It is available in one version: 1-head (underside).

Product Name Bekk Roughness 1 Head Tester PTA
Product Code PTA-170307
Standards/Methods TAPPI T 479, ISO 5267, DIN 53107
Test Material Paper
Manufacturer The PTA Group (PTA)
Availability from OpTest Exclusive to Canada, USA, and Mexico

• Fully automated measuring cycle, sample is not influenced manually.
• Adjustable feet for the equipment leveling.
• Big Color Touch Screen.
• Full Statistics, with graphs, average, deviation, min and max value, etc.
• 3 volume selectable (1/1, 1/10 and 1/20)
• 3 volume selectable (380, 38 and 19 ml)
• Built in weight of 10 kilos.
• Selectable measuring ranges: – 50.7-48.0 kPa & 50.7-29.3 kPa
• Measuring Area of 10 cm2.
• Preview calculation already after 10 sec
• Measuring mode : Underside
• Photocell for automatic test when positioning the sample, or manual test.
• RS-232 interface for connection to management and control programs.
• USB connection for maintenance works and for connection with USB printer.
• CE mark.
• Electrical Connection: 110/230V 50/60Hz
• Compressed Air: 400-600 kPa
• Weight (equipment only / with packaging): 23 kg / 38 kg
• Dimensions (W x L x H - equipment only): 27 x 68 x 60 cm


Test Description:
The sample is placed below the measuring head. On pushing the start button, the 10 kg weight lowers onto the sample and helps to hold it tight to the glass plate. The built-in vacuum pump evacuates the selected tank to a vacuum of -50.7 kPa. Dependent on the surface roughness of the sample, atmospheric air is drawn in between the glass plate and the sample. The time taken for the vacuum to reach -48.0 kPa (res. 29.3 kPa) is displayed in BEKK seconds. Ten seconds after the test has started a preview is displayed to give an estimation of the result in advance.


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