dh budenberg 580 I dh budenberg dead weight tester vietnam

CPB5000 Deadweight Tester

DH-Budenberg deadweight testers also referred to as pressure balances are primary pressure standards. This means that they measure pressure directly by applying a force over an area. The force comes from precisely machined masses that are stacked on a precision piston that has a specific cross sectional area. The piston rotates within a cylinder and floats atop a hydraulic (oil) or pneumatic (air) fluid under pressure. This generates a stable pressure that can be applied to a pressure device being tested.