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Pre-Historic Era:

During this period, people useinstrumented functions for mereexistence and survival

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Industrial Revolution:

During this period, people apply theconcept of instrumented functions notonly for existence and survival but also

to increase the quality of life.

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Modern Era:

During this period, people apply the fullconcept of instrumented functions not only forexistence, survival, increasing the quality oflife but rather to use as much as possible

100% machines for their day to day work,which unknowingly leads to tight competitionamong people.

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Instrumentation and Instrument

What is Instrumentation?

MusicalInstruments

ResearchInstruments

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General Definition ofInstrumentation:

Instrumentation can be defined as theart and science of measurement and/orcontrol.

or simply,

Instrumentation is achieved by using anInstrument.

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Definition of Instrumentation basedon Industrial Application Concept:

It is the application ofinstruments forthe purposes of measuring, observing,transmitting, indicating, recording,

monitoring and controlling of anyindustrial process variable. (such as:

pressure, level, flow, temperature,

quality and etc.)

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What is an Instrument?

An Instrument is any device useddirectly or indirectly in order toaccomplish an objective or task.

In instrumentation, an instrument is anysensing, measuring, transmitting,

indicating, or controlling deviceassociated with a process or system.

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Responsibilities of InstrumentationPersonnel:

The person responsible for theapplication & design is calledInstrument Engineer.

The one responsible for maintenance &troubleshooting of instrumentationsystem is called Instrument Technician.

Instrument Fitters are responsible for

direct installation of instruments duringplant construction and major turn-around.

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Instrumentation Functional Divisions

Instrumentation

Analysis Division

Plant Safety Division

EnvironmentalProtection Division

Factory Automation

Division

Process ControlDivision

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How is InstrumentationImplemented?

1. Simple or stand alone system.

2. Complex system.

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Simple or Stand Alone

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Complex System

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Instrumentation System

Instrumentation system is an arrangement of twoor more instruments connected together toperform a unified task.

Each instrument operates independentlyaccording to its specific task. Failure of onemember instrument, means failure of the entireinstrumentation system.

The simplest form of instrumentation system is aControl Loop.

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What is Automation?

Automation is a system concept thatutilizes instrumentation system toperform certain task or sequences of

operations in an automatic manner orwithout human intervention.

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