Deadweight Testers (Primary Standards)


Ametek-Mansfield & Green provides the world’s only ball-type deadweight testers, where the ball and weights float on a thin film of air, which is virtually frictionless.  This design eliminates the necessity to rotate the weights during testing, and allows the user to concentrate on the instrument itself.  The testers are engineered to offer user-friendly, safe operation, in the field, or in a lab.  Both pneumatic and hydraulic testers are available.

Typical deadweight tester applications are:

  • laboratory or field use
  • hazardous locations
  • critical process control loops extending the time between calibrations due to better accuracy and uncertainty
  • calibrating instruments on custody transfer stations thereby reducing the uncertainty of the measurement
  • calibrating portable digital calibrators to achieve the highest possible accuracy and reducing maintenance costs
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