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Instrumentation

Impulse line Blockages

Introduction Blockage of an impulse line will cause flowrate information to be lost, with potentially...
Pressure Measurement

Difference between metal thin film & ceramic thick film sensor

Metal thin-film sensor The main body and the diaphragm of a metal thin-film sensor are...
Pressure Measurement

Electronic pressure measurement

Introduction For electronic pressure measurement a sensor is required to detect the pressure and/or its...
Instrumentation

What is impulse lines?

Table of ContentsWhat is  impulse piping?What are the things to remember before designing a...
Pressure Measurement

Difference between Pilot-operated & Self-compensating pressure regulators

Introduction Gases used in industrial processing, such as oxygen, nitrogen, hydrogen, and propane, are stored...
Communication

HART ( Highway Addressable Remote Transducer) Communication Protocol

What is HART protocol? HART (Highway Addressable Remote Transducer) Protocol is the global standard for...
Instrumentation

Proximity detection using capacitance & inductive sensors

Introduction There are two basic ways to detect object presence; contact and proximity. Contact implies...
Interview Questions

Instrumentation interview questions

What is Process control? A process control is continuous changing of a process variable to...
SCADA

Introduction to SCADA

What is SCADA? SCADA stands for Supervisory Control and Data Acquisition. SCADA is a control...
Instrumentation

Basics of Pneumatic instruments

Introduction A pneumatic system is a system that uses compressed air to transmit and control...
PLC

Introduction to PLC hardware- part 2

Introduction Earlier we discussed about the basics of PLC hardware .This is the continuation of...
Communication

RS-232 C interface and modems

RS-232 C is a standard connection between a modem and the devices, electrical specifications, data exchange...
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