- Surface roughness :
A sample is placed on the planar glass plate after starting the device. If needed, it can be flattened by a planar weight. The roughness head is placed carefully onto the sample.
The pressure is controlled by the rotating manostat weight. Values are indicated at the manometer tubes. Attention should be paid to the displayed value : only values within 20-
80 % are valid.
- Air permeability :
The operator inserts the porosity head after turning on the compressor. The porosity head is clamped manually until the end of the test. By manual switching, the range between the
individual rotameter tubes can be chosen.
- The standard measurement pressure is 1.47 ± 0.02 kPa in accordance with the Standards.
- Two other pressures can be selected by changing the weight of the manostats (0.74 ± 0.01 kPa and 2.20 ± 0.03 kPa).
- Choice of three rotameter tubes to analyze a wide range of products.
- 5 - 150 ml per minute
- 50 - 500 ml per minute
- 300 - 3000 ml per minute
- Bendtsen Type Tester Manual
- Roughness head
- Porosity head
- Glass plate
- Operating manual
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