Unit of competency Outline
Date retreived
23/07/2026 1:31 AM AWST
23/07/2026 1:31 AM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Maintain, repair control instrumentation - single and multiple loop control systems
Maintain, repair control instrumentation - single and multiple loop control systems
Unit of competency
National Code
MEM18060B
MEM18060B
State Code
W5607
W5607
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
26/10/2006
Field of Education
030701 - Mechanical Engineering
Original Release Date
26/10/2006
Nominal Hours
72
Description
This unit covers determining control loop characteristics, monitoring and recording the operation of a control loop, localising the fault condition, and replacing or repairing the faulty condition.
Notes
Elements and Performance Criteria
1. Determine control loop operating characteristics
- 1.1. Engineering specifications, technical information and historical trends are examined for relevant data.
- 1.2. System specifications, operational data and other relevant data sources are examined, read, interpreted and relevant conclusions are noted.
- 1.3. Consultation with system operators and other relevant plant personnel is carried out, and relevant data is extracted and documented by appropriate means.
- 1.4. Using knowledge of all control loop device characteristics, controller mode principles and adjustment methods, operation of the system is observed.
- 1.5. Appropriate test equipment and testing procedures are used.
- 1.6. Fault finding and diagnostic techniques are utilised.
- 1.7. Relevant data is collected by appropriate means from all sources including maintenance records, fault indicators, charts, error codes operational symptoms, observation monitoring and consultation with appropriate personnel.
2. Monitor and record operation of a control loop
- 2.1. Pneumatic, electrical and electronic circuit diagrams are interpreted and understood.
- 2.2. Using knowledge of all control loop device characteristics, controller mode principles and calibration/adjustment methods, loop operation from the controller response to set point and manual output changes using correct test equipment, principles and procedures are check tested and monitored.
- 2.3. Software configuration data for digital control systems is interpreted.
- 2.4. Operational responses are monitored and recorded by appropriate means.
- 2.5. Fault finding and diagnostic techniques are utilised throughout checking and testing procedures including simple and multi-controller type control schemes.
- 2.6. Diagnostic results and conclusions are analysed against predetermined operational specifications.
3. Localise fault condition
- 3.1. Circuits are tested to the level necessary to identify and localise faults.
- 3.2. Drawings/diagrams and operational testing data are utilised in identifying and localising fault conditions.
- 3.3. Fault condition is localised and verified to major component level using appropriate test equipment, principles and procedures.
4. Replace or repair faulty condition
- 4.1. Components are dismantled for repair or replacement using appropriate tools, equipment and procedures.
- 4.2. Replaceable items are selected from manufacturers' catalogues, spare parts lists, or data sheets.
- 4.3. Serviceable items are repaired using correct principles, tools, equipment and procedures.
- 4.4. Repaired and replaceable items are reassembled using appropriate tools, equipment, techniques and procedures.
5. Calibrate and adjust control instrumentation
- 5.1. Panel mounted, split architecture single loop/multiple loop control instruments are calibrated and adjusted using correct calibration principles, equipment and methods for all devices according to manufacturers' instructions.
- 5.2. Adjust controller modes and actions are adjusted according to specifications.
- 5.3. Zero span and range checks are undertaken using correct and appropriate configuration.
- 5.4. Correct and appropriate procedures, techniques, tools and equipment are used to make final adjustments to control instrumentation to specifications.
6. Complete service reports and recommission
- 6.1. Service reports are completed to standard operating procedures.
- 6.2. Appropriate follow-up procedures are adopted.
- 6.3. Control instrumentation is recommissioned to standard operating procedures.
RANGE STATEMENT
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Historical trends
SCADA, charts, chart recorders and data loggers, equipment condition monitoring etc.
Control loop
An opened and closed loop system includes final control elements, process measuring devices, converters, controllers, process signals and the like
Major components can include
Transducers, power supplies, removable circuit boards, sensor units and other like components
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.
Historical trends
SCADA, charts, chart recorders and data loggers, equipment condition monitoring etc.
Control loop
An opened and closed loop system includes final control elements, process measuring devices, converters, controllers, process signals and the like
Major components can include
Transducers, power supplies, removable circuit boards, sensor units and other like components
EVIDENCE GUIDE
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
A person who demonstrates competency in this unit must be able to maintain, repair control instrumentation - single and multiple loop control systems. Competency in this unit cannot be claimed until all prerequisites have been satisfied.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.
Context of and specific resources for assessment
This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.
This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with maintaining, repairing control instrumentation - single and multiple loop control systems, or other units requiring the exercise of the skills and knowledge covered by this unit.
Method of assessment
Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.
Guidance information for assessment
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.
Overview of assessment
A person who demonstrates competency in this unit must be able to maintain, repair control instrumentation - single and multiple loop control systems. Competency in this unit cannot be claimed until all prerequisites have been satisfied.
Critical aspects for assessment and evidence required to demonstrate competency in this unit
Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.
Context of and specific resources for assessment
This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.
This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with maintaining, repairing control instrumentation - single and multiple loop control systems, or other units requiring the exercise of the skills and knowledge covered by this unit.
Method of assessment
Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.
Guidance information for assessment
Replaces
| State Code | National Code | Title | Type |
|---|---|---|---|
| M0467 | MEM18.60AA | Maintain, repair control instrumentation - single and multiple loop control systems | Unit of competency |
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| OAU57 | MEM18060 | Maintain, repair control instrumentation - single and multiple loop control systems | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| W245 | MEM40105 | Certificate IV in Engineering | Qualification |
| W247 | MEM50105 | Diploma of Engineering - Advanced Trade | Qualification |
| W239 | MEM30405 | Certificate III in Engineering - Electrical/Electronic Trade | Qualification |
| W237 | MEM30205 | Certificate III in Engineering - Mechanical Trade | Qualification |
| W726 | LMT31909 | Certificate III in Engineering - TCF Mechanic | Qualification |