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Electrical

What is Instrument Transformers?

Instrument Transformers In heavy currents and high voltage a.c circuits, the measurement can not be...
Communication

Protocol analyzers & analysis

Communication between devices connected to computer networks is controlled by transmission and protocol standards...
Level Measurement

Direct level measuring techniques

Introduction There are several methods to measure the level.There are Direct and Indirect methods.example for...
Humidity measurement

Humidity Measuring Devices – Psychrometers & Hygrometers

Humidity can be measured using materials that absorb water vapor, giving a change in...
Pressure Measurement

BELLOW TYPE PRESSURE GAUGE

Introduction The bellow type gauges are used for the measurement of absolute pressure. They are...
How to

Calibration of Dp level transmitter at field

Introduction In this session we are gonna discuss about calibration of Dp level transmitter  in...
Calibration

HART transmitter calibration procedure – For pressure transmitter

For a conventional 4-20 mA instrument, a multi-point test that simulates the input and...
Control Valve

How to assemble a diaphragm actuator to the control valve?

Introduction The Control Valves consist of the single-seated  Angle Valve and  Pneumatic Actuator.The process medium flows...
Control Valve

Difference between Rotary-Shaft Valves & Sliding-Stem control Valves

Sliding-Stem Valves  Sliding-stem valves include globe valves, angle valves, and axial flow valves. Of all the control valve...
Electrical

PCB (Prinited Circuit Board) fabrication

 What is PCB? PCB, which means Printed Circuit Boards are assembled and compact model of...
How to

Loop checking basic Procedure

what is mean by loop checking? Loop Checking means, First we want to check the...
Control System

What is Supervisory control?

Introduction There are a lots of control sytems like cascade control ,feedback control,feedforward control,split controls...
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