Deadweight Testers

Deadweight testers are primary pressure calibration standards used to generate highly accurate and repeatable pressure based on known mass, gravity, and piston area. Because they do not rely on electronic sensors, deadweight testers provide exceptional long‑term stability and serve as the foundation for pressure traceability in calibration systems. These instruments are critical wherever the lowest measurement uncertainty and primary pressure realization are required.

Key applications include:
 

• Calibration laboratories: establishing traceability and calibrating pressure standards, controllers, and gauges
• Aerospace & defense: high‑accuracy hydraulic and pneumatic system verification
• Oil & gas: calibration of high‑pressure mechanical gauges and transmitters
• Manufacturing & R&D: reference pressure generation for validation and testing

ATEC offers pneumatic and hydraulic deadweight testers from leading manufacturers such as Fluke Calibration, DH Instruments, AMETEK, Mensor, WIKA, Additel, and Druck, supporting low‑pressure through ultra‑high‑pressure laboratory calibration requirements.