The Tamson Vacuum System (TVS) is a digital vacuum controller designed to offer a precise preselected negative pressure, i.e. – 300 mm Hg for ASTM D2171. This makes the TVS in combination with the Tamson Manifold and TV4000 a very suitable option when testing the viscosity of bitumen by vacuum capillary viscometer according to ASTM D2171, IP 222, EN 12596 and AASHTOT 202. The TVS offers a range from 20 .. 320 mm Hg [30 .. 430 mBar]. The pump keeps the vacuum within 0.5 mm Hg of its set point.
Tamson Vacuum System (TVS) 85~250V
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