The wide range of barnet deadweight testers offers a high quality, economical, precision pressure calibration source for almost every application. This barnet range includes pneumatic testers for pressures up to 2,000 bar with main features like, ease of use and high priming capability. These deadweight testers come with single and double-piston, motorised or non-motorised variants. The testers have a standard accuracy of ±0.03% and improved accuracy up to 0.015% is also optionally available. They are generally supplied after applying corrections for value of gravity and temperature at the place of use. This particular range of deadweight testers comes with calibration certificates traceable to npl or namas standards via a bs en iso 9002 quality assured laboratory.