Pressure Transmitter

Transmitters are widely used in industrial automation systems for measuring process variables such as pressure, temperature, and flow. However, during operation, transmitter failures can occur due to various reasons, posing challenges to maintenance personnel. Quickly and accurately identifying the root cause is critical for minimizing downtime. Based on years of field experience, engineers at Xingyi […]

A glycerin-filled pressure gauge—also referred to as an oil-filled pressure gauge—is a type of mechanical pressure measuring device that enhances performance by filling the casing with damping liquid such as glycerin or silicone oil. It is widely used in industrial applications where vibration, pulsation, or corrosive conditions may affect the accuracy and lifespan of standard

1. Fundamental Principle Differential pressure (DP) flow meters operate on the throttling principle, derived from the Bernoulli equation. They calculate flow rate by measuring the static pressure difference generated as the fluid passes through a restriction (such as an orifice plate or venturi tube), and combining it with known physical parameters. 1.1 Working Principle When

Bourdon tube pressure gauges are widely used in industrial processes for pressure monitoring. Due to their mechanical structure and on-site usage conditions, various issues may occur over time. This guide summarizes typical failures, causes, troubleshooting methods, and calibration techniques for Bourdon tube pressure gauges. 1. Typical On-Site Failures and Causes 1.1 No Indication or Pointer

Pressure transmitters are essential instruments in modern industrial automation, responsible for converting pressure signals into standardized electrical outputs that can be used for process control and monitoring. However, they often operate in complex and dynamic environments, where pressure spikes can pose serious threats to sensor integrity. This article explores the structural design of pressure transmitters,

Pressure transmitters are among the most widely used instruments in industrial applications. Proper usage and handling are critical to ensure their long-term stability, measurement accuracy, and operational safety. Based on extensive industry experience, the following key precautions are recommended when using pressure transmitters: 1. Ensure Correct Power Supply Voltage It is essential to supply the

Differential pressure transmitters (DPTs) are essential instruments in industrial applications for measuring pressure, liquid level, and flow rate. They convert differential pressure into standardized output signals (e.g., 4–20 mA) for integration with display systems, controllers, and recorders, enabling continuous monitoring and automatic control. 1. Overview of Differential Pressure Transmitters A DPT measures the pressure difference

Pressure sensors are critical components in industrial automation and various monitoring systems. Their accuracy and reliability directly affect the efficiency and safety of entire systems. Therefore, conducting accurate testing to evaluate their performance and condition is an essential step in ensuring system stability. This article will provide a detailed guide on testing pressure sensors, including

In pressure and level transmitter selection, diaphragm material plays a critical role, especially under extreme working conditions such as strong corrosion, high temperature, and cryogenic environments. Proper material selection ensures the reliability, accuracy, and longevity of the transmitter. 1. Diaphragm Material Selection for Strong Acid and Strong Alkali Environments 1.1 Strong Acid Environments (e.g., Sulfuric

In industrial applications, differential pressure transmitters are widely used for liquid level measurement in tanks and containers. During installation and configuration, terms like “negative migration” and “positive migration” often come up. These adjustments are crucial for ensuring accurate measurement. This article explores why negative and positive migration are necessary, how to calculate the migration amount,