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SOUTH AFRICAN QUALIFICATIONS AUTHORITY 
REGISTERED UNIT STANDARD: 

Demonstrate an understanding of the Principles of Process Control Loops 
SAQA US ID UNIT STANDARD TITLE
116084  Demonstrate an understanding of the Principles of Process Control Loops 
ORIGINATOR
SGB Measurement, Control and Instrumentation 
PRIMARY OR DELEGATED QUALITY ASSURANCE FUNCTIONARY
-  
FIELD SUBFIELD
Field 06 - Manufacturing, Engineering and Technology Engineering and Related Design 
ABET BAND UNIT STANDARD TYPE PRE-2009 NQF LEVEL NQF LEVEL CREDITS
Undefined  Regular  Level 4  NQF Level 04  10 
REGISTRATION STATUS REGISTRATION START DATE REGISTRATION END DATE SAQA DECISION NUMBER
Reregistered  2018-07-01  2023-06-30  SAQA 06120/18 
LAST DATE FOR ENROLMENT LAST DATE FOR ACHIEVEMENT
2024-06-30   2027-06-30  

In all of the tables in this document, both the pre-2009 NQF Level and the NQF Level is shown. In the text (purpose statements, qualification rules, etc), any references to NQF Levels are to the pre-2009 levels unless specifically stated otherwise.  

This unit standard does not replace any other unit standard and is not replaced by any other unit standard. 

PURPOSE OF THE UNIT STANDARD 
This unit standard is for persons in the Manufacturing Engineering and Technology field.

A person credited with this unit standard will be able to:
  • Explain the principles and procedures (techniques) to be applied in order to identify the different types of process control loops.
  • Explain the principles and procedures (techniques) to be applied in order to identify the different methods of process control i.e. PID Control.
  • Identify and connect various equipment in a process control loop.
  • Interpret and Analyse Control Loop Response.

    This unit standard will contribute to the full development of the learner within the Measurement Control and Instrumentation environment by providing recognition, further mobility and transportability within the field of Manufacturing Engineering and Technology. The skills, knowledge and understanding demonstrated within this unit standard are essential for social and economic transformation and development within the Measurement Control and Instrumentation environment. 

  • LEARNING ASSUMED TO BE IN PLACE AND RECOGNITION OF PRIOR LEARNING 
    The following knowledge, skills attitude and / or equivalent:
  • Safety procedures according to statutory and manufacturer requirements.
  • Knowledge of procedures according to range statement.
  • Interpret Instrumentation and Process drawings and sketches.
  • Basic electrical safety.
  • Use and care of relevant testing, measuring equipment and hand tools. 

  • UNIT STANDARD RANGE 
    This unit standard applies to persons demonstrating an understanding of Process Control Loops
  • Procedures may include but are not limited to:
    (a) Safety procedures as given in Safety manuals.
    (b) Policy and procedures as given in manuals.
    (c) Installation procedures as given in Manufacturers' and Company maintenance manuals.
    (d) Maintenance procedures as given in Manufacturers' and Company maintenance manuals.
  • This unit standard applies to the following but not limited to open loops; closed loops; cascade loops; PID control and On/Off control.

    Requirements include but are not limited to Statutory requirements, National Standards and manufacturers specifications. 

  • Specific Outcomes and Assessment Criteria: 

    SPECIFIC OUTCOME 1 
    Understand process control loops. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Identify the different types of process control loops. 

    ASSESSMENT CRITERION 2 
    Explain the operation of the different types of process control loops. 

    ASSESSMENT CRITERION 3 
    Connect up the loops in accordance with loop drawings. 

    SPECIFIC OUTCOME 2 
    Understand the control concepts within a loop. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Identify the different types of loop control. 

    ASSESSMENT CRITERION 2 
    Explain the operation of the different types of loop control with the aid of graphs or diagrams. 

    ASSESSMENT CRITERION 3 
    Use the relevant calculations/methods to obtain the correct PID parameters. 

    SPECIFIC OUTCOME 3 
    Interpret and Analyse Process Control Loop Response. 

    ASSESSMENT CRITERIA
     

    ASSESSMENT CRITERION 1 
    Use relevant trends to explain the response from the various types of control. 

    ASSESSMENT CRITERION 2 
    Apply the appropriate type of control in order to achieve a stable response. 

    ASSESSMENT CRITERION 3 
    Ensure documentation is updated with latest parameters. 


    UNIT STANDARD ACCREDITATION AND MODERATION OPTIONS 
  • Anyone assessing a learner against this unit standard must be registered as an assessor with the relevant ETQA.
  • Any institution offering learning that will enable achievement of this unit standard must be accredited as a provider through the relevant ETQA by SAQA.
  • Moderation of assessment will be overseen by the relevant ETQA according to the moderation guidelines in the relevant qualification and the agreed ETQA procedures. 

  • UNIT STANDARD ESSENTIAL EMBEDDED KNOWLEDGE 
  • Workshop procedures including house keeping practices according to statutory requirements.
  • Specific work site safety practices relating to the Process Control Loop including the use of personal protective equipment, electrical and fire protection.
  • A basic understanding of:
    (a) The effects of fault finding, repairing and maintaining on production.
    (b) Applicable manufactures specifications.
    (c) Documentation required for activity.
    (d) Characteristics and procedures of equipment.
  • A comprehensive understanding of:
    (a) Applicable work site procedures.
    (b) Reporting systems.
    (c) Identification, location and function of appropriate tools, measuring instruments, materials, personal protective equipment.
    (d) Names and functions of equipment .
    (e) Maintenance principles and procedures (techniques).
    (f) Interpret and draw schematic diagrams.
    (g) Potential faults on Process Control Loops.
    (h) Characteristics and properties of system operations.
    (i) Working principles associated with Process Control Loops.
  • Names, locations and functions of Process Control Loops and their accessories.
  • Hazards and preventive precautions associated with Process Control Loops.
  • Company standards. 

  • UNIT STANDARD DEVELOPMENTAL OUTCOME 
    N/A 

    UNIT STANDARD LINKAGES 
    N/A 


    Critical Cross-field Outcomes (CCFO): 

    UNIT STANDARD CCFO IDENTIFYING 
    Identification and problem solving skills - faulty equipment identified and reported. 

    UNIT STANDARD CCFO WORKING 
    Work effectively with others - working under supervision. 

    UNIT STANDARD CCFO COMMUNICATING 
    Communication skills - reporting faulty Process Control Loops and interpreting job requirements. 

    UNIT STANDARD ASSESSOR CRITERIA 
    N/A 

    REREGISTRATION HISTORY 
    As per the SAQA Board decision/s at that time, this unit standard was Reregistered in 2012; 2015. 

    UNIT STANDARD NOTES 
    N/A 

    QUALIFICATIONS UTILISING THIS UNIT STANDARD: 
      ID QUALIFICATION TITLE PRE-2009 NQF LEVEL NQF LEVEL STATUS END DATE PRIMARY OR DELEGATED QA FUNCTIONARY
    Core  74532   National Certificate: Measurement, Control and Instrumentation  Level 3  NQF Level 03  Reregistered  2021-06-30  As per Learning Programmes recorded against this Qual 
    Core  48919   Further Education and Training Certificate: Measurement, Control and Instrumentation  Level 4  NQF Level 04  Passed the End Date -
    Status was "Reregistered" 
    2009-04-08  Was EWSETA until Last Date for Achievement 
    Core  61570   National Diploma: Power Plant Process Control Operations  Level 5  NQF Level 05  Reregistered  2023-06-30  EWSETA 


    PROVIDERS CURRENTLY ACCREDITED TO OFFER THIS UNIT STANDARD: 
    This information shows the current accreditations (i.e. those not past their accreditation end dates), and is the most complete record available to SAQA as of today. Some Primary or Delegated Quality Assurance Functionaries have a lag in their recording systems for provider accreditation, in turn leading to a lag in notifying SAQA of all the providers that they have accredited to offer qualifications and unit standards, as well as any extensions to accreditation end dates. The relevant Primary or Delegated Quality Assurance Functionary should be notified if a record appears to be missing from here.
     
    1. ESKOM DRANKENSBURG PUMP STORAGE (PEAKING) 
    2. ESKOM DUVHA POWER STATION - OPERATIONS 
    3. ESKOM INGULA PUMP STORAGE SCHEME (PEAKING) 
    4. ESKOM KOEBERG - RADIATION PROTECTION 
    5. ESKOM KRIEL POWER STATION OPERATIONS TRAINING 
    6. Kelvin Power (Pty) Ltd 
    7. KNOWLEDGE PELE PTY LTD 



    All qualifications and part qualifications registered on the National Qualifications Framework are public property. Thus the only payment that can be made for them is for service and reproduction. It is illegal to sell this material for profit. If the material is reproduced or quoted, the South African Qualifications Authority (SAQA) should be acknowledged as the source.