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Instrumentation is defined as the art and science of

measurement and control of process variables within a

production, or manufacturing area.[1]

An instrument is a device that measures and/or

regulates physical quantity/process variables such as

flow, temperature, level, or pressure. Instruments

include many varied contrivances that can be as simple

asvalvesandtransmitters, and as complex

asanalyzers. Instruments often comprise control

systems of varied processes such as refineries,

factories, and vehicles. The control of processes is one

of the main branches of applied instrumentation.

Instrumentation can also refer to handheld devices that

measure some desired variable. Diverse handheld

instrumentation is common in laboratories, but can be

found in the household as well. For example, asmoke

detectoris a common instrument found in most western

homes.

Output instrumentation includes devices such

assolenoids,valves,regulators,circuit breakers,

andrelays. These devices control a desired output

variable, and provide either remote or automated control

capabilities. These are often referred to as final control

elements when controlled remotely or by acontrol

system.

Transmittersare devices that produce an output signal,

often in the form of a 420mAelectricalcurrentsignal,

although many other options

usingvoltage,frequency,pressure, orethernetare

possible. This signal can be used for informational

purposes, or it can be sent to

aPLC,DCS,SCADAsystem,LabViewor other type of

computerized controller, where it can be interpreted into

readable values and used to control other devices and

processes in the system.

Control Instrumentation plays a significant role in both

gathering information from the field and changing the

field parameters, and as such are a key part ofcontrol

loops.

Instrumentation engineering is the engineering

specialization focused on the principle and operation of

measuring instruments that are used in design and

configuration of automated systems in electrical,

pneumatic domains etc. They typically work for

industries withautomatedprocesses, such

aschemicalormanufacturingplants, with the goal of

improving systemproductivity, reliability, safety,

optimization, and stability. To control the parameters in

a process or in a particular system, devices such as

microprocessors, microcontrollers or PLCs are used,

but their ultimate aim is to control the parameters of a

system.

Instrumentation engineering is loosely defined because

the required tasks are very domain dependent. An

expert in the biomedical instrumentation of laboratory

rats has very different concerns than the expert in

rocket instrumentation. Common concerns of both are

the selection of appropriate sensors based on size,

weight, cost, reliability, accuracy, longevity,

environmental robustness and frequency response.

Some sensors are literally fired in artillery shells. Others

sense thermonuclear explosions until destroyed.

Invariably sensor data must be recorded, transmitted ordisplayed. Recording rates and capacities vary

enormously. Transmission can be trivial or can be

clandestine, encrypted and low-power in the presence

of jamming. Displays can be trivially simple or can

require consultation withhuman factorsexperts. Control

system design varies from trivial to a separate specialty.

Instrumentation engineers are commonly responsible

for integrating the sensors with the recorders,

transmitters, displays or control systems. They may

design or specify installation, wiring and signalconditioning. They may be responsible for calibration,

testing and maintenance of the system.

In a research environment it is common for subject

matter experts to have substantial instrumentation

system expertise. An astronomer knows the structure of

the universe and a great deal about telescopes - optics,

pointing and cameras (or other sensing elements). That

often includes the hard-won knowledge of the

operational procedures that provide the best results. For

example, an astronomer is often knowledgeable of

techniques to minimize temperature gradients that

cause air turbulence within the telescope.

An Instrument Engineer makes sure that project or asset

discipline engineering procedures are performed within

schedule and budget, and preserving technical integrity. He or

she estimates and executes various instrument engineering

http://en.wikipedia.org/wiki/Instrumentation#cite_note-0http://en.wikipedia.org/wiki/Instrumentation#cite_note-0http://en.wikipedia.org/wiki/Instrumentation#cite_note-0http://en.wikipedia.org/wiki/Valveshttp://en.wikipedia.org/wiki/Valveshttp://en.wikipedia.org/wiki/Valveshttp://en.wikipedia.org/wiki/Transducerhttp://en.wikipedia.org/wiki/Transducerhttp://en.wikipedia.org/wiki/Transducerhttp://en.wikipedia.org/wiki/Analyserhttp://en.wikipedia.org/wiki/Analyserhttp://en.wikipedia.org/wiki/Analyserhttp://en.wikipedia.org/wiki/Smoke_detectorhttp://en.wikipedia.org/wiki/Smoke_detectorhttp://en.wikipedia.org/wiki/Smoke_detectorhttp://en.wikipedia.org/wiki/Smoke_detectorhttp://en.wikipedia.org/wiki/Solenoidhttp://en.wikipedia.org/wiki/Solenoidhttp://en.wikipedia.org/wiki/Solenoidhttp://en.wikipedia.org/wiki/Valvehttp://en.wikipedia.org/wiki/Valvehttp://en.wikipedia.org/wiki/Valvehttp://en.wikipedia.org/wiki/Regulator_(automatic_control)http://en.wikipedia.org/wiki/Regulator_(automatic_control)http://en.wikipedia.org/wiki/Regulator_(automatic_control)http://en.wikipedia.org/wiki/Circuit_breakerhttp://en.wikipedia.org/wiki/Circuit_breakerhttp://en.wikipedia.org/wiki/Circuit_breakerhttp://en.wikipedia.org/wiki/Relayhttp://en.wikipedia.org/wiki/Relayhttp://en.wikipedia.org/wiki/Relayhttp://en.wikipedia.org/wiki/Control_systemhttp://en.wikipedia.org/wiki/Control_systemhttp://en.wikipedia.org/wiki/Control_systemhttp://en.wikipedia.org/wiki/Control_systemhttp://en.wikipedia.org/wiki/Transducerhttp://en.wikipedia.org/wiki/Transducerhttp://en.wikipedia.org/wiki/Amperehttp://en.wikipedia.org/wiki/Amperehttp://en.wikipedia.org/wiki/Amperehttp://en.wikipedia.org/wiki/Current_(electrical)http://en.wikipedia.org/wiki/Current_(electrical)http://en.wikipedia.org/wiki/Current_(electrical)http://en.wikipedia.org/wiki/Voltagehttp://en.wikipedia.org/wiki/Voltagehttp://en.wikipedia.org/wiki/Voltagehttp://en.wikipedia.org/wiki/Frequencyhttp://en.wikipedia.org/wiki/Frequencyhttp://en.wikipedia.org/wiki/Frequencyhttp://en.wikipedia.org/wiki/Pressurehttp://en.wikipedia.org/wiki/Pressurehttp://en.wikipedia.org/wiki/Pressurehttp://en.wikipedia.org/wiki/Ethernethttp://en.wikipedia.org/wiki/Ethernethttp://en.wikipedia.org/wiki/Ethernethttp://en.wikipedia.org/wiki/Programmable_logic_controllerhttp://en.wikipedia.org/wiki/Programmable_logic_controllerhttp://en.wikipedia.org/wiki/Programmable_logic_controllerhttp://en.wikipedia.org/wiki/Distributed_Control_Systemhttp://en.wikipedia.org/wiki/Distributed_Control_Systemhttp://en.wikipedia.org/wiki/Distributed_Control_Systemhttp://en.wikipedia.org/wiki/SCADAhttp://en.wikipedia.org/wiki/SCADAhttp://en.wikipedia.org/wiki/SCADAhttp://en.wikipedia.org/wiki/LabViewhttp://en.wikipedia.org/wiki/LabViewhttp://en.wikipedia.org/wiki/LabViewhttp://en.wikipedia.org/wiki/Control_loophttp://en.wikipedia.org/wiki/Control_loophttp://en.wikipedia.org/wiki/Control_loophttp://en.wikipedia.org/wiki/Control_loophttp://en.wikipedia.org/wiki/Automatedhttp://en.wikipedia.org/wiki/Automatedhttp://en.wikipedia.org/wiki/Automatedhttp://en.wikipedia.org/wiki/Chemical_planthttp://en.wikipedia.org/wiki/Chemical_planthttp://en.wikipedia.org/wiki/Chemical_planthttp://en.wikipedia.org/wiki/Manufacturinghttp://en.wikipedia.org/wiki/Manufacturinghttp://en.wikipedia.org/wiki/Manufacturinghttp://en.wikipedia.org/wiki/Productivityhttp://en.wikipedia.org/wiki/Productivityhttp://en.wikipedia.org/wiki/Productivityhttp://en.wikipedia.org/wiki/Human_factorshttp://en.wikipedia.org/wiki/Human_factorshttp://en.wikipedia.org/wiki/Human_factorshttp://en.wikipedia.org/wiki/Human_factorshttp://en.wikipedia.org/wiki/Productivityhttp://en.wikipedia.org/wiki/Manufacturinghttp://en.wikipedia.org/wiki/Chemical_planthttp://en.wikipedia.org/wiki/Automatedhttp://en.wikipedia.org/wiki/Control_loophttp://en.wikipedia.org/wiki/Control_loophttp://en.wikipedia.org/wiki/LabViewhttp://en.wikipedia.org/wiki/SCADAhttp://en.wikipedia.org/wiki/Distributed_Control_Systemhttp://en.wikipedia.org/wiki/Programmable_logic_controllerhttp://en.wikipedia.org/wiki/Ethernethttp://en.wikipedia.org/wiki/Pressurehttp://en.wikipedia.org/wiki/Frequencyhttp://en.wikipedia.org/wiki/Voltagehttp://en.wikipedia.org/wiki/Current_(electrical)http://en.wikipedia.org/wiki/Amperehttp://en.wikipedia.org/wiki/Transducerhttp://en.wikipedia.org/wiki/Control_systemhttp://en.wikipedia.org/wiki/Control_systemhttp://en.wikipedia.org/wiki/Relayhttp://en.wikipedia.org/wiki/Circuit_breakerhttp://en.wikipedia.org/wiki/Regulator_(automatic_control)http://en.wikipedia.org/wiki/Valvehttp://en.wikipedia.org/wiki/Solenoidhttp://en.wikipedia.org/wiki/Smoke_detectorhttp://en.wikipedia.org/wiki/Smoke_detectorhttp://en.wikipedia.org/wiki/Analyserhttp://en.wikipedia.org/wiki/Transducerhttp://en.wikipedia.org/wiki/Valveshttp://en.wikipedia.org/wiki/Instrumentation#cite_note-0

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actions, including technical study and detailed design, concept

and front end engineering development.

Employers

Instrument engineers usually work within industries thatinvolve automated processes, including manufacturing orchemical plants, with the objective of enhancing systemreliability, optimization, stability, productivity and safety.

Tasks and responsibilities

The Instrument Engineer performs the design of due

instrument alteration associated to LNG manufacture facilities

and related offsites. He or she makes sure that the design

meets all recognized industrial codes and standards. The

Instrument Engineer is responsible for reviewing

specifications, drawings, and other documentation from

contractors and consultants. The Instrument Engineer is

directly responsible for ordering and reserving stock materialsfor any modifications. He or she must also make sure that all

materials are in compliance with the company's standards and

specifications. The Instrument Engineer communicates on a

regular basis with the electrical, civil, mechanical and

structural engineers within the department in order to take

care of any interdisciplinary obligation for the modifications. It

is the Instrument Engineer's responsibility to act as a core to

make sure the entire integral package is assembled correctly

prior to distributing. The Instrument Engineer has the

responsibility of collecting, talking about and responding to

any queries or comments that may come from the approval of

a modification package. In addition, the Instrument Engineer

oversees and leads the construction, engineering and pre-commissioning contract staff throughout the execution of the

modification.

Requirements

Typically, an Instrument Engineer has a BS in

Electronics/Control Engineering or equivalent. He or she has

at least ten years experience in the instrument engineering

industry, including a minimum six years working in

development/project work in the industry of petrochemical, oil

refining or gas processing. Instrument Engineers generally

speak and write English fluently, and are usually computer

literate.

The Automation Engineering Department within

WorleyParsons provides Automation (instrumentation,

controls, and telecommunications) expertise related to

the design and construction of oil and gas production

and processing facilities.

Responsibilities

Provide Instrumentation design support to

multidisciplinary teams on a large project

Produce specifications and detailed design ofInstrumentation systems and materials, including

technical selection, calculations, and sizing following

project standards.

Creating material requisitions c/w specifications and

data sheets for plant instrumentation including PSV,

control valves, flow elements and transmitters.

Vendor document review and approval.

Evaluate Vendor quotations for technical content and

perform bid tabs where required.

Create Construction Work Packages including scope

of work and drawings, such as loop drawings,

installation details, datasheets, location drawings and

perform interdisciplinary reviews.

Work with Client in project meetings and HAZOP.

Participate in project planning and execution.