This unit involves the skills and knowledge required to set up pressure measuring components and systems and provide solutions to a pressure measurement problem as it applies to a process and control work function.

It includes working safely, setting up and calibrating pressure measuring components and system, using problem-solving techniques, using measuring devices, and providing solutions derived from measurements and calculations to predictable problems in pressure measurement components and systems.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare to work on pressure measurement components and system

1.1

Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are obtained and applied

1.2

Hazards are identified, risks assessed and control measures implemented

1.3

Nature of the pressure measurement problem is identified from documentation or appropriate person/s to determine the scope of work to be undertaken

1.4

Appropriate person/s is consulted to ensure work is coordinated effectively with others

1.5

Materials required for the work are determined in accordance with workplace procedures

1.6

Tools, equipment and testing devices needed to carry out the work are obtained and checked for correct operation and safety in accordance with workplace procedures

2

Solve a pressure measurement problem

2.1

WHS/OHS risk control work measures and workplace procedures are followed

2.2

Need to inspect, test or measure electrical components of live work is determined in accordance with job requirements and workplace safety procedures

2.3

Pressure measurement apparatus is checked and isolated in accordance with WHS/OHS requirements and workplace procedures

2.4

Relevant methods are used to solve measurement problem from tests and calculated values, as they apply to pressure measurement components and systems

2.5

Unplanned situations are responded to in accordance with workplace procedures and with the approval of an authorised person/s

2.6

Problems are resolved using sustainable energy principles and without damage to apparatus, the surrounding environment or services in accordance with workplace procedures

3

Complete work and document work activities

3.1

WHS/OHS work completion risk control measures and workplace procedures are followed

3.2

Worksite is cleaned and made safe in accordance with workplace procedures

3.3

Justification for solutions used to resolve pressure measurement problem is documented

3.4

Work completion is documented and appropriate person/s notified in accordance with workplace procedures

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least two separate occasions and include:

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including applying risk control measures

applying sustainable energy principles and practices

completing work and documenting work activities

dealing with unplanned events/situations in accordance with workplace procedures in a manner that minimises risk to personnel and equipment

documenting completed work

identifying pressure measurement components and systems

solving problems in pressure measurement components and systems.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

pressure transmitters and converters

pressure measurement terms and transducers, including:

applications and common relationships

pressure and the relationship between applied pressure, density, mass, force, area and the height of liquid columns

transducer types, applications, connections and input/outputs (I/O) - measurement and evaluation

manometers ,including:

types of manometers

operating principles of manometers

gauge pressure measurement

wet leg

manometer applications

manometer limitations

absolute, gauge and atmospheric pressure measurement, including:

absolute and gauge pressure

absolute zero pressure

atmospheric pressure

barometers

absolute pressure gauges

mechanical pressure measuring devices, including:

gauges: bourdon tube, spiral and helical

other mechanical pressure elements: bellows, capsule and slack/stiff diaphragms

pressure measurement using elastic deformation gauges

term: flexibility spring rate

electrical pressure measuring devices, including:

electrical sensors for pressure measurements, including capacitive, piezo, inductive and strain gauge

testing elements and electrical signal transmission devices

dead weight testers, including:

law of hydraulics

dead weight tester operating principles

dead weight tester operating procedures

terms: backlash, hysterics and repeatability

calibration of gauges

precautions

bourdon tube gauges calibration

testing and installation of pressure measurement devices, including:

testing

calibration

installation of pressure measurement devices within pressure vessel systems

isolation, seal, vent, drain and bypass valves location and operation sequence

pressure transmitters and converters, including:

principle of operation of moment, motion and forced balanced transmitters for pneumatic, electrical, and electronic transmitter

applications of transmitters, converters and connections

calibration of transmitters

principle of operation of signal converters

applications of pressure converters

calibration of pressure converters

problem solutions in pressure measurement systems

relevant job safety assessments or risk mitigation processes, including risk control measures

relevant manufacturer specifications

relevant materials, tools and equipment

relevant WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace policies and procedures

sustainable energy principles and practices

testing and installation of pressure measurement devices, including device calibration

live electrical components.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or other simulations

relevant and appropriate materials, tools, equipment and personal protective equipment (PPE) currently used in industry

applicable documentation, including workplace procedures, equipment specifications, regulations, codes of practice and operation manuals.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.

Pressure measurement apparatus and system fault finding, maintenance or development work functions must include at least three of the following:

determining the operating parameters of a pressure measuring system

setting up and calibrating a pressure measuring system

developing a pressure measuring system to comply with a specified function and operating parameters

Electrotechnology

Instrumentation & Control