Pressure Transmitter

In industrial settings, it is often necessary to measure various non-electrical physical quantities, such as pressure, liquid level, temperature, differential pressure, humidity, soil moisture, and more. To transmit these physical quantities to a control room or display device, which could be hundreds of meters away, they need to be converted into standard analog electrical signals. […]

A pressure transmitter is an instrument that converts pressure into a 20-100 kPa pneumatic signal or a 4-20 mA current signal. Pressure transmitters are categorized into pneumatic and electric types and are widely used in industries such as refining, chemical processing, metallurgy, and pharmaceuticals. On-site calibration of pressure transmitters is a common practice. 1. Tools

Differential pressure transmitters are categorized into pneumatic and electric types. They are widely used in industries such as refining, chemical processing, and metallurgy. These transmitters are often paired with throttling devices to measure flow, and sometimes are used to measure liquid levels or other parameters. Many differential pressure transmitters operate directly on-site, where most calibrations

Introduction In industrial applications, selecting the right pressure transmitter requires careful consideration of multiple critical specifications and parameters. Choosing the appropriate device ensures accurate measurements, long-term reliability, and compatibility with the operating environment. This article provides a detailed guide on the general specifications and selection criteria for pressure transmitters, along with application scenarios and selection

In the process of selecting and using transmitters, the signal output and wiring method are crucial considerations. The terms “two-wire,” “three-wire,” and “four-wire” refer to transmitters with various direct current (DC) signal outputs. The issue of how many wires a transmitter uses fundamentally stems from differences in working principles and structure, not merely the form

Introduction A pressure sensor is a measuring device that detects pressure and converts the sensed information into an electrical signal or another required output format. This allows for data transmission, processing, storage, display, recording, and control. However, during operation, pressure sensors may encounter malfunctions that affect their performance. This article discusses common issues and their

When selecting a pressure sensor, several important questions are often raised regarding its operating environment. Questions such as: “What is the working environment for your pressure sensor?” “What is the temperature range of the measured medium?” and “What is the environmental humidity where the pressure sensor will operate?” These questions are essentially asking about the

Pressure sensors play a crucial role in various engineering applications, directly impacting measurement accuracy and project timelines. With a wide variety of pressure sensors available on the market today, choosing the right one based on the specific measurement purpose, the medium being measured, and the environmental conditions is essential for any engineering project. Understanding the

  Do not use voltage higher than 36V on the transmitter, as it may cause damage. Avoid touching the transmitter’s diaphragm with hard objects, as this could damage the isolation diaphragm. The measured medium should not freeze, as the freezing may damage the isolation diaphragm of the sensor, leading to transmitter failure. When measuring steam

When dealing with pressure gauge disassembly and installation, one common question arises: Does this process involve instrument piping or process piping? The answer depends on the specific application and installation method of the pressure gauge. To clarify this, let’s break down the differences between instrument piping and process piping and determine which category pressure gauge