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Learn how to use deadweight testers to calibrate pressure measuring instruments with precise weights. Compare different types of deadweight testers, such as hydraulic, pneumatic, oil, water, and electronic.
We provide 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.
Oct 6, 2016 · Learn what a dead weight tester is, how it works, and how to use it to calibrate pressure gauges. Find out the formula, accuracy, and applications of this primary standard instrument.
E-DWT-H is an electronic calibrator designed to replace mechanical, piston-cylinder and weight based deadweight testers. It’s a lighter, easier-to-use deadweight tester alternative that is at home in the lab or instrument shop, as well as in the field performing in-situ calibrations and tests.
Instrumart offers a variety of deadweight testers for calibrating pressure gauges, sensors, and transducers. Deadweight testers use known weights and precision machined components to measure pressure with high accuracy, stability, and repeatability.
A dead weight tester (DWT) is a calibration standard method that uses a piston cylinder on which a load is placed to make an equilibrium with an applied pressure underneath the piston. Deadweight testers are secondary standards which means that the pressure measured by a deadweight tester is defined through other quantities: length, mass and time.
This versatile instrument provides calibrations from 1-30 inHg vacuum (0.03-1 bar) and 3-500 psi (0.2-35 bar) in one extremely accurate yet easy to use primary standard. A selector valve converts the unit from pressure to vacuum mode without the need to exchange pistons.
