Differential pressure (DP) flow meters are widely used to measure the flow rate of fluids, including gases, liquids, and steam, in pipelines. The basic operating principle behind these devices is that as a fluid flows through a constriction, the pressure drops in proportion to the square of the flow velocity. This pressure difference is then […]
Working Principle of Differential Pressure Flow Meters Read More »
To effectively prevent and significantly reduce the risk of hazardous chemical accidents, safety instrumented systems (SIS) equipped with lifecycle management functions are required for new projects and operational facilities, such as installations, tanks, and more. These systems undergo a professional evaluation of their Safety Integrity Level (SIL). The interlock control logic, being the core component
Introduction The application of differential pressure transmitters in flow measurement not only reflects their technical maturity and reliability but also demonstrates their indispensable role across various industries. This article delves into the working principles, calculation methods, structural components, and diverse applications of differential pressure transmitters, offering a comprehensive understanding of their utility in industrial processes.
Application of Differential Pressure Transmitters in Flow Measurement Read More »
Pressure sensors are generally composed of metal structural components and electrical circuits. Some transmitters are also equipped with display panels or are used in conjunction with digital indicators. Users typically perform basic maintenance on these transmitters, such as checking electrical connections, cleaning the transmitter, replacing seals, changing terminal blocks, and adjusting zero points and ranges.
How to Maintain Pressure Sensors and Troubleshoot Common Issues Read More »
Introduction In industrial measurement and automation, pressure transmitters play a crucial role in ensuring accurate and reliable readings. However, noise interference is one of the primary factors that can degrade their measurement accuracy. Noise in pressure transmitters can be broadly categorized into internal noise and external noise. Internal noise is further classified into thermal noise
Understanding and Reducing Noise in Pressure Transmitters Read More »
Pressure transmitters play a crucial role in monitoring and controlling pressure in industries such as chemicals, power generation, and oil and gas. However, in outdoor or humid environments, water ingress can damage the equipment and even lead to safety incidents. In line with chemical instrumentation standards, the rain and waterproofing measures for pressure transmitters must
Causes and Solutions Pressure measurement is a crucial parameter in petrochemical production, with various measurement methods available. Among them, pressure transmitters are widely used for direct pressure measurement, while differential pressure transmitters are employed for measuring pressure differences. However, in real-world applications, incorrect readings or abnormal fluctuations in pressure and differential pressure transmitters are common
Common Faults in Pressure and Differential Pressure Transmitters Read More »
Dual flange capillary tubes play a crucial role in pressure measurement, temperature monitoring, and other process automation systems across industries such as petrochemical, chemical, metallurgy, and more. Proper selection, installation, and maintenance are essential to ensuring the stability of instrument performance, measurement accuracy, and the longevity of the equipment. This article provides a detailed discussion
Selection, Installation, and Maintenance Considerations for Dual Flange Capillary Tubes Read More »
1. Grounding of the Pressure TransmitterGrounding of a pressure transmitter refers to the connection of its metal housing to the earth via a conductor. This ensures that the transmitter’s metal housing and components are at the same electrical potential as the earth. The primary purpose of grounding is to safely redirect leakage currents caused by
The Importance of Grounding Pressure Transmitters and Shielded Wiring Read More »
Pressure transmitters are commonly used in various industrial applications, and understanding the migration phenomenon in these devices is crucial for accurate measurements. Migration in pressure transmitters can occur in three main forms: positive migration, negative migration, and no migration. This article explains the concept of each migration type and provides detailed guidelines on how to
Understanding Positive, Negative, and No Migration in Pressure Transmitters Read More »
