Item # 4340

The Model 4340 Automatic Densometer & Smoothness Tester measures the porosity, air-permeability or air resistance of sheet-like materials. It combines the abilities of a low, standard and high pressure tester with a digital timer that provides a reading in seconds.

An auto-drive mechanism, enables you to program the number of tests as well as the span they are tested over. Therefore, a sheet or strip of paper can be analyzed automatically.

• Porosity and smoothness of paper, textiles, paperboard, films, membranes, filter media, packaging, perforated metals and others.
• Quality control — Air permeability can be a direct representation of the uniformity of material.
• Analyze effects of treatments such as coatings, sizing agents, inks, resins or other additives.

• Porosity:
  • Standard Gurley
  • Low Pressure Gurley
  • High Pressure Gurley
  • Sheffield units
  • Bendtsen units
• Smoothness:
  • Standard Gurley smoothness
  • Sheffield units
  • Bendtsen units
  • Bekk units

• Porosity & smoothness tests
• Automatic & manual test modes
• Output in seconds - improves efficiency
• Programmable auto-drive mechanism
• Interchangeable orifices (1.0 sq.in. standard, 0.25 & 0.1 sq.in. optional)
• RS-232 computer output