Pressure calibrators

M&G deadweight testers (primary standards) 

In 1966, Mansfield & Green introduced the deadweight tester based on the “floating ball” principle. This deadweight tester is an extremely easy-to-use, reliable and accurate primary standard and is now earning its reputation as the “standard of standards”.

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