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Instrumentation

What is superheater?

The superheater is one component in the boiler that serves to further heat the...
Control Valve

Solenoid Valve Functional Testing

Table of ContentsEquipment and preparationTypical test setup see attached imageStep by step functional testTest...
Electrical

What is contactor?

The contactor is an electrical component that serves to connect or disconnect AC power....
Communication

Cable screen, Grounding cable screen

What is cable screen? A protected cable or screened cable is an electrical cable connected...
Level Measurement

Displacer level switches working, Displacer V/S Float

Displacer controls provide float-operated control with additional characteristics. The detector is a spring-suspended weight...
Commissioning

Basic Pre-Commissioning Inspection

General Procedure: Before starting the plant operation, the plant should be commissioned. Before beginning a...
Control Valve

How a Valve is controlled using a 4-20mA loop

Table of ContentsSignal conversionControl Valve Connection 4-20 mA Current LoopParts of 4-20 mA Current...
Automation

4-20mA Analog Inputs from Transmitters measuring

A DCS, PLC, single-loop controller or other device analog input accepts an electronic signal,...
whatis

Welding Quality control check

The Quality Assurance Plan should include a list of all required welding inspections and...
Instrumentation

What are the tasks of a welding Inspector?

Welding inspector are personals who verify the work produced by welders meets specification and...
Communication

What are Armoured cables & Steel Wire Armoured cables (SWA)?

What are Armoured cables? Armoured cable is the name given to any electrical cable built...
Temperature Measurement

Errors in Resistance type temperature measurement

The errors in resistance thermometry fall naturally into four main groups, all of the...
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