A Guide to Choosing the Best Deadweight Testers



The deadweight tester is a specific standard in calibration that relies on pressure balance to calibrate and restore instruments designed to measure pressure. These devices will apply a set pressure to a device using calibrated weights. It is one of the most efficient and economical ways of measuring pressure calibration.  

Using high quality hydraulic deadweight testers to provide rapid stabilization and assist with fine-tuning. In the following guide, a closer look at the features of deadweight testers can help you choose the best devices for your next application.  

How Does a Deadweight Tester Work?  

The deadweight tester operates by producing pressure as it compresses objects inside its pot-like design. The purpose of the application is to restore equilibrium between the device being tested and the known reference.  

The reason that deadweight testers are favored in pressure measurement is due to their mechanical functioning. This provides a higher level of accuracy and the measurements can be traced against known reference standards.  

Choosing a Deadweight Tester  

Hydraulic deadweight testers can be found in various sizes and measure different ranges. Understanding how to choose the right device can prevent inaccuracies and costly measurements. 

Onsite and Laboratory Use  

Deadweight testers can be used for various onsite applications and are often applied in maintenance or to perform quality checks in industrial settings. In this instance, you need a portable tester that is easy to use and does not rely on an external power source.  

These testers can be applied in laboratory settings where calibration is performed. If you are unsure as to which device is most suitable for your next application, speak to a professional supplier in the industry.  

Operational Range  

It’s important to choose an operating range that is compatible with that of its DUT. The most common operating range is between 10 and 100% FS.  

Accurate Operation  

Tools such as the P3100 hydraulic deadweight testers provide the highest levels of accuracy and reliable calibration. Because a deadweight tester is meant to represent a reference standard, it must be highly accurate.  

Fortunately, devices such as the P3100 deadweight testers offer a pressure range of 60000 psi and offer three types of variations including single low pressure, high pressure, and dual piston types.  

Choosing instruments with high levels of accuracy and performance capabilities such as the CFS2 cable float switch will ensure that your next application is accurate. Choosing a deadweight tester requires careful consideration of its functions, features, and capabilities.  


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