Dead weight testers are used as the basic primary standard and its principle is accepted worldwide for the most accurate pressure measurements.
The gas operated deadweight tester DGS001 has an accuracy of 0.01% of reading. The piston cylinder assembly is made of tungsten carbide which is extremely hard and wear-resistant.
The weight column is mounted on a stainless steel base plate. A triangle frame is used to make a steady and firm base for the weight column and can be leveled out by a spirit level.
The weight carrier is of a hanging type and therefore insensible for any negative influences like friction of a support piston. An EA RVA certificate by an accredited third party is standard. The certificate shows the effective area as well as the weight of each mass.