In process control, the four fundamental parameters are flow rate, liquid level, pressure, and temperature. Among these, temperature control is widely regarded as the most challenging. This difficulty arises primarily from the mismatch between the high performance requirements of temperature control and the inherent characteristics of the controlled object. Flow Rate Control: The Simplest of […]
Why Is Temperature Control So Difficult? Read More »
Process instrumentation is an integral part of industrial automation and process control systems. This guide explains key terminology in process instrumentation, complete with detailed explanations and practical examples. The goal is to help engineers, technicians, and professionals understand and apply these concepts effectively. 1. Range The algebraic difference between the upper and lower limits of
Common Terminology in Process Instrumentation: A Detailed Guide Read More »
I. Temperature transmitter amplification effect Sensors and transmitters play a pivotal role in the field of instrumentation and industrial automation. Unlike sensors, transmitters can not only convert non-electrical quantities into measurable electrical quantities, but also generally have a certain amplification effect. Thermocouple temperature transmitters are generally composed of reference source, cold end compensation, amplifier unit,
Analysis of the causes of no transmission in temperature transmitter Read More »
Installation method of pressure measuring point on horizontal or inclined pipeline: For gas medium, a small amount of condensate in the gas should be able to flow back to the pipeline smoothly, so as not to cause measurement error due to entering the measuring pipeline and instrument, so the pressure tapping port should be in
Flanges are essential components used to connect pipes, valves, pumps, and other equipment in a piping system. Two common types are slip-on flanges (commonly referred to as SO flanges) and weld-neck flanges (WN flanges). They differ significantly in terms of structure, welding methods, mechanical properties, and applications. This article provides a detailed analysis of these
Detailed Comparison Between Slip-On Flanges and Weld-Neck Flanges Read More »
Solenoid valves are essential components in many industrial systems, including chemical plants. These valves are controlled by electric current, which powers a coil (known as a solenoid) to generate a magnetic field. This magnetic field moves a plunger that opens or closes the valve, controlling the flow of liquids or gases. In chemical plants, solenoid
How to Choose the Right Solenoid Valve for a Chemical Plant Read More »
Introduction Industrial automation is a cornerstone of a company’s competitive advantage, directly influencing safety and efficiency. Among the critical aspects of automation management is the self-control utilization rate, which measures the degree to which automated systems are deployed effectively in production processes. While management tools such as inspections, rankings, and performance evaluations are commonly applied,
The Management of Self-Control Rates in Industrial Automation Read More »
Pressure measurement is an essential part of many industrial and scientific processes. Depending on the type of pressure gauge, measurements are made relative to different reference points: absolute vacuum, atmospheric pressure, or a sealed reference chamber. The question arises: can an absolute pressure gauge with a range of 0–100 kPa be used to measure negative
Can an Absolute Pressure Gauge (0–100 kPa) Measure Negative Pressure? Read More »
With the advancement of Industry 4.0 and the rise of smart manufacturing, Manufacturing Execution Systems (MES) have become a focal point for enterprises seeking to optimize operations and improve efficiency. Despite their growing importance, MES systems are often misunderstood, leading to challenges during deployment. This article aims to clarify some common misconceptions about MES and
Most transmitters have two types: with display and without display. Transmitters with display can display the measured value of the measured medium in real time at the site of use, which is convenient for observation and value detection. The types of transmitters with display will be slightly different in terms of appearance size, power supply
The reason why the transmitter does not display Read More »
