Testing Pressure Gauges: Processes of Verification Test and Functional Test
Brian Craig
May 28, 2021
Pressure gauges are the industrial equipment used for measuring pressure fluctuations. Generally, they are installed on the fluid transmission lines in industrial supply systems, fluid-operated equipment, etc. Pressure plays a crucial role in industrial process control. Hence the pressure gauges are of great significance. However, the performance of these gauges should be precise and accurate, otherwise, sudden pressure buildup, pressure drop, etc can cause damage to the industrial systems. This is why testing the pressure gauges before an application is essential. These gauges are often tested, calibrated, and validated before and during the application. The testing plays the most significant role in ensuring the performance and verification of these devices. There are multiple ways of testing gauges. Out of which functional testing and verification testing are mandatory and are performed by the manufacturers or users of these gauges. This post discusses the processes of verification and functional tests for these gauges.
Pressure gauges are devices that can sense the fluctuation in pressure. These devices feature sensing elements like diaphragms, bourbon tubes, springs, etc. These sensing elements react to pressure changes. There are different types of gauges depending on the type of sensing element used and the type of displays it possesses. Generally, analog and digital gauges are used in various industries.
No matter what type of gauge it is, the need for testing remains of great importance. Let us discuss the significance of testing gauges.
Gauges are tested for various aspects such as accuracy, performance parameters, efficiency, etc. Based on the testing results, the activities such as calibration, maintenance, troubleshooting can be performed. If the pressure gauges are not tested, there will be errors in assembly, installation, and operation. Slight errors in installation or assembly of the gauge may result in leakages, high-pressure buildup, sudden pressure drop, etc. This may eventually result in the bursting of fluid lines, which may cause potential damage to the operator. Thus, to prevent the chances of accidents, it is essential to test the gauges. Verification testing and functional testing are two methods adopted in the industries. Let us discuss both.
Verification testing is one of the steps involved in the calibration of gauges. In this step, the performance parameters of the working gauge are compared to master gauges’ parameters. This ensures that the gauge is operating to the best of its capabilities.
Pre-requisites
Procedure
The following steps are involved in verification testing.
Notes:
A functional test is performed to check for consistency in the operational capabilities of the gauges.
Pre-requisites
Procedure
The listed steps are involved in a functional test of pressure gauges.
Since testing is a crucial part of calibration and maintenance, it should be performed by experts to avoid errors. That is why you should source gauge testing and calibration services from experts like The Transmitter Shop. The company offers high-quality gauges, transmitters, etc along with reliable testing, maintenance, and calibration services.
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