instrumentation
- Instrumentation
BASICS OF ON/OFF CONTROLLER
Introduction In control theory, an on/off controller, also known as a hysteresis controller, is a feedback controller that switches abruptly…
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The pneumatic recorder
Introduction The pneumatically operated recorder is still used today, particularly in remote locations. It does not use electricity so it…
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PROGRAMMING LOGIC DEVICES (PLC)
Introduction A digitally operating electronic apparatus which uses a programming memory for the internal storage of instructions for implementing specific…
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Level Measurement Errors
INTRODUCTION There are many methods to measure level of a system or a tank (Direct and indirect). Let us discuss…
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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.…
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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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Different components of a control loop
What is control loop? A Control loop is the fundamental building block of the industrial control system or industrial automation.…
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