Deadweight tester (DWT) is a calibration standard which uses a piston cylinder on which a load is placed to make an equilibrium with an applied pressure underneath the piston. Deadweight testers are so called primary standards which means that the pressure measured by a deadweight tester is defined through other quantities; Length, mass and time. Typically deadweight testers are used in calibration laboratories to calibrate pressure transfer standards like electronic pressure measuring devices.
Purpose: In 1980, Model: YS-6; YS-60; YS-600 Dead Weight Tester Pressure Tester were awarded the state silver medal. And in 1987, after re-examination, we still hold the state silver medal. These testers are used in laboratory and measuring department for calibrating the precision pressure gauges or standard pressure gauges.