Pressure Transmitter

Introduction Pressure gauges are among the most widely used instruments in industrial applications. Like any measurement device, they require periodic calibration to maintain accuracy and ensure safe, reliable operation. At its core, pressure gauge calibration involves applying a known reference pressure and comparing it with the gauge’s reading. The difference between the applied and indicated […]

Differential pressure transmitters with small measuring ranges are highly sensitive to environmental interference. When installed in wind-exposed areas, strong airflow can create pressure on the negative-pressure port, resulting in inaccurate readings and compromising measurement accuracy. To mitigate the influence of external airflow and environmental fluctuations, it is recommended to install a downward-facing impulse line and

Although their names differ by only one word, capsule pressure gauges and diaphragm pressure gauges are fundamentally different in structure, working principle, applicable media, and usage scenarios. Understanding their distinctions is essential for proper selection and application. ⚙️ 1. Working Principle ● Capsule Pressure Gauge A capsule pressure gauge uses a pressure-sensitive element called a

🛠 Scope of Application This procedure applies to the safe operation of differential or pressure transmitters equipped with a 3-valve manifold (comprising a High-Pressure Valve [H], Low-Pressure Valve [L], and Balance Valve [B]). Correct sequencing is essential to prevent diaphragm damage and ensure accurate pressure readings. ⚙️ Fundamental Principle Always protect the transmitter by using

Have you ever underestimated the seemingly simple yet profoundly significant instrument, the pressure gauge? In the chemical industry, selecting and installing pressure gauges is an intricate science. A suitable pressure gauge not only ensures accurate measurements but also impacts the safety and efficiency of the entire production process. Today, we’ll discuss some details you can’t

Absolute pressure transmitters and vacuum (or negative gauge) pressure transmitters are widely used in industrial applications. The key differences lie in their reference baseline, measurement principle, and application scenarios. Below is a detailed comparison. 1. Definitions and Measurement Principles Type Definition Reference Baseline Measurement Range Absolute Pressure Transmitter Measures the pressure relative to a perfect

Differential pressure (DP) flow meters are widely used in industrial process control. When a DP flow meter shows no indication despite other equipment operating normally, it often signals either a measurement system issue or a process anomaly. This article analyzes two real-world cases and provides a structured troubleshooting guide. ✅ Case Study 1: No Flow

Are you experiencing erratic readings, unexpected zero drift, or sluggish response in your differential pressure transmitters with remote diaphragm seals? These issues often occur when large ambient temperature variations affect the capillaries and their fill fluid. In low temperatures, the fill fluid may thicken or even solidify; in high temperatures, expansion slows down response times

The selection of the pressure tapping point is a critical factor that directly affects the accuracy and reliability of pressure measurement in industrial processes. Proper tapping location varies depending on the process medium (gas, liquid, or steam), flow characteristics, and installation conditions. This document outlines key technical principles to ensure correct tapping point selection and

4 Engineering Purposes Behind This Design In industrial piping systems, it is common to see a curved pipe section—often referred to as a siphon tube, gauge bend, or pigtail—installed below a pressure gauge. While it may seem like a minor detail, this bend serves several critical engineering purposes that protect the gauge and improve system