What is a pressure switch used for? A pressure switch is a device that is commonly used to monitor pressure levels in various systems and applications. It can be found in many different kinds of equipment, such as air compressors, refrigeration systems, hydraulic systems, and many more. Its primary function is to ensure that the …
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What is Servo Motor? How does servo motor work? Types of Servo Motor Advantages of servo motor Disadvantages of servo motor What Does Stepper Motor mean? Explains Stepper motor principle How does a stepper motor work? Types of stepper motor Advantages & Disadvantages of stepper motor. Disadvantages of Stepper motor Comparison of stepper motor & …
What is 3 Element Control? Boilers in power plants that encounter quick and wide-ranging load variations need three-element control. Control with three elements is quite similar to control with two elements, with the exception that the water flow loop is closed rather than open. In order to determine the feedwater flow’s index or set point, …
Terminology What is the purpose of controller tuning? Tuning of control system The response produced by the process to a load or S.P change after the optimum controller parameters have been set, is known as the “optimum response”. The optimum response differs from process to process. However, the most common criteria is to adjust the …
Thermocouples A thermocouple is a junction made of two distinct metals that generates a voltage in response to a change in temperature. Thermocouples are a form of temperature sensor that is frequently used for measurement and control, as well as for converting heat into electric power. Thermoelectric effect Three effects of Thermocouple 1. The …
What is the principle of capacitance type level transmitter? Principle of capacitance type level measurement: A capacitance type level transmitter is a device used for measuring the level of liquids or solids in a tank, vessel or container. It works by utilizing the principle of capacitance, which is the ability of a system to store …
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One of the fundamental roles of an instrumentation engineer is the creation and upkeep of instrumentation documentation. This article will expose you to the various terms and forms of instrumentation documentation used in a process plant, from project design to plant maintenance. For more information on each document, please click the links provided below. Process …
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How does DP transmitter measure interface level? How do you measure interface level? Example: A vessel needs an interface measurement with a 240 inch level. Two liquids with specific gravities of 1.1(SG2) and 1.3(SG1) are present in the container. In order to calculate the calibrated range of the transmitter, four assumptions need to be made, …
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What is a Control Loop? The control loops used in the process control industry all function in the same manner, which necessitates the completion of the following three tasks: What are different types of control loops? In industrial operations, two types of control loop systems are often utilised. They are the closed loop system and …
Calibration principle: Calibration Setup Safety Link: Basic Safety and General Consideration While Executing Calibration Process in process industries Method of calibration Range selection: Zero calibration: Span Calibration: Calibration verification: Expected current (mA) = ((Actual liquid level / Full scale level) * 16) + 4 EC = {(AL/FL) X16} +4 EC = Expected current signal in …
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