- Control System
BASIC CONTROL PRINCIPLES
INTRODUCTION Control of the processes in the plant is an essential part of the plant operation.The level of the boiler…
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Basics of Hart Communicator
Introduction HART is a master-slave communication protocol , which means that during normal operation, each slave (field device) communication is initiated by a master communication device.…
Read More » - Control Valve
VALVE STEM PACKING REPLACEMENT METHOD
VALVE STEM PACKING The purpose of valve packing is to prevent leakage. In a typical valve, the gland follower is…
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Working of control valve
Introduction The control valve is a controlled device that regulates the flow of a liquid or gas in a system.…
Read More » - Flow Measurement
Flow Measurement Errors
Introduction While measuring flow, errors can be obtained some of the errors are due to flow transmitters that can be…
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BASIC CONTROL SYSTEM INTERVIEW QUESTIONS
Define System. A system is a combination or an arrangement of different physical components which act together as an entire…
Read More » - Pressure Measurement
Pressure Detectors
Introduction There are different kinds of pressure sensing elements that are used in the industries.we are going to discuss about…
Read More » - Calibration
Calibration of Pressure Switch
Introduction The device contains a micro switch, connected to a mechanical lever and set pressure spring. The contacts get actuated when process pressure reaches the…
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P&ID legends
INTRODUCTION As an Instrument Technician trainee you will use Piping and Instrument Diagrams or P&ID’s in your job. You must…
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P&ID and Common Abbreviation
INTRODUCTION A piping and instrumentation diagram (P&ID) is a diagram in the process industry which shows the piping of the…
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