A dead weight tester apparatus uses weights to apply pressure to a fluid for checking the accuracy of readings from a pressure gauge. 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.

In this post, we learn the principle of the dead weight pressure tester and the types of pressure gauge calibration methods.

Dead Weight Tester (DWT) is a pressure measurement instrument that calibrates pressure based on the weight of force divided by the area the force is applied. DWT provides high accuracy in pressure gauge calibration and prevents the occurrence of an error in pressure reading.

Oct 6, 2016 · Dead weight testers are a piston-cylinder type measuring device. As primary standards, they are the most accurate instruments for the calibration of electronic or mechanical pressure measuring instruments.

Deadweight Testers (DWT) are the primary standard for pressure measurement. There are three main components of this device: a fluid (oil) that transmits the pressure, a weight and piston used to apply the pressure, and a connection port for the gauge to be calibrated.

A dead weight tester is a precision instrument designed to calibrate pressure gauges by applying known weights to generate precise pressure values. It operates based on the fundamental principle of Pascal’s law, which states that pressure is …

A dead weight tester is a very handy piece of instrument for calibrating a pressure gauge or other pressure transducers in an industrial plant. But how does this device work? Lets find out:

A dead weight tester is commonly used as a source of standard pressure for calibration purposes. It is basically a pressure producing and pressure measuring device. A typical dead weight or piston gauge is schematically shown in the following figure 1, Figure 1: Dead Weight Tester. It consists of a chamber in which fluid is filled.