Pressure Transmitter

Why Some Are Long and Others Are Short?** Differential pressure (DP) flow meters measure flow by detecting the pressure drop created across a primary element—such as an orifice plate, Venturi tube or wedge flow meter.To transmit this pressure difference to the transmitter, two impulse (tapping) lines are installed between the process piping and the DP […]

Why Instrument Incidents Are Rarely Just Operator Errors In daily instrumentation maintenance, draining and inspection of differential pressure (DP) transmitters are considered routine tasks. In practice, however, improper drain operations continue to cause serious equipment damage—especially in steam service. Recently, a DP transmitter was severely damaged during a drain operation. Similar incidents have occurred before,

Double-flange capsule assemblies are widely used in various industrial applications for precise measurements under complex working conditions. However, their performance can be compromised by damage caused by several factors. This article identifies the common causes of damage and provides detailed countermeasures to ensure optimal functionality and longer service life. 1. Corrosion Cause: Corrosion occurs when

Pressure gauges are essential devices in industrial systems to monitor and manage pressure levels. Among the various types, electric contact pressure gauges and remote transmission pressure gauges stand out due to their unique features and functionalities. Despite their shared purpose of pressure measurement, they differ significantly in their principles, applications, and advantages. Below is a

Pressure is a critical parameter in industrial production processes, influencing both operational efficiency and safety. Accurate pressure measurement and control are essential to ensure smooth production, prevent equipment failure, and maintain workplace safety. This guide provides detailed insights into the significance of pressure measurement and practical recommendations for selecting the most suitable pressure instruments. Importance

In industrial measurement and control, pressure transmitters are everywhere. But in vacuum systems, environmental monitoring, and high-precision applications, you may notice that engineers prefer absolute pressure transmitters instead of the more common gauge pressure transmitters. At first glance, they look similar, but the reference point and measurement logic behind them are fundamentally different: Gauge pressure

Overview: Differential pressure flow meters are widely used in industrial applications to measure flow rates by calculating the difference in pressure across a restriction in the pipe. It is common for the original range of the flow meter to be inadequate once the system is in operation. This article discusses how to handle such situations

Pressure calibration for the double flange level transmitter is a crucial step to ensure measurement accuracy. Below are the detailed steps and precautions for the calibration process: Calibration Steps 1. Pre-calibration Preparation Tools and Equipment: Prepare a standard pressure source (such as a manual pressure pump with higher accuracy than the level transmitter), a precision

When selecting pressure transmitters, terms like “absolute pressure” and “gauge pressure” often cause confusion. A user once requested a pressure transmitter with a measurement range of 0~-90kPa absolute pressure, but was told that only a gauge pressure transmitter could be used. Why is that? 1. Absolute vs. Gauge Pressure: Understanding the Difference A user wanted

When measuring hydrogen gas with a pressure transmitter, it is common to coat the stainless-steel diaphragm with a thin layer of gold. This may seem unnecessary at first glance, but the reason lies in the unique properties of hydrogen and its interaction with stainless steel. Below, we explore the scientific and practical reasons for this