NZQA registered unit standard
24888 version 2
Page 1 of 3
Title
Prepare and interpret diagrams for instrumentation and control
systems
Level
3
Purpose
Credits
3
This unit standard covers drawing and interpreting diagrams
used to document the operation and connection of
instrumentation and control systems.
People credited with this unit standard are able to:
 prepare diagrams of industrial measurement and control
systems; and;
 interpret diagrams of industrial measurement and control
systems.
Classification
Industrial Measurement and Control > Industrial Measurement
and Control - Theory
Available grade
Achieved
Explanatory notes
1
Definition
IEC – International Electrotechnical Commission
Industry requirements – includes all asset owner requirements; manufacturers’
specifications; enterprise requirements which cover the documented workplace
policies, procedures, specifications, and business requirements; and quality
management requirements relevant to the workplace in which the assessment is
carried out.
ISA – International Society for Automation
ISO – International Organisation for Standardisation
2
Range
a
Diagrams may include but are not limited to – piping and instrumentation
diagrams (P & ID); process flow diagrams; single-line diagrams; loop diagrams.
b
Diagrams must include all relevant details and principal elements appropriate to
the type of drawing.
c
All diagrams must comply with industry or site standards.
d
Neat sketches will be adequate to demonstrate competence.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
24888 version 2
Page 2 of 3
Outcomes and evidence requirements
Outcome 1
Prepare diagrams of industrial measurement and control systems.
Range
evidence of a minimum of four diagrams is required, which may all relate to the
same part of a system.
Evidence requirements
1.1
Draw diagrams relating to the process operation using standard symbols and
formats.
1.2
Draw diagrams with layouts that aid interpretation of measurement and control
systems.
Outcome 2
Interpret diagrams of industrial measurement and control systems.
Range
evidence of at least four diagrams of different types is required.
Evidence requirements
2.1
Interpret a diagram to explain system operation.
2.2
Explain system functions and items included in a diagram in accordance with
industry requirements.
Planned review date
31 December 2017
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
19 May 2008
31 December 2019
Review
2
28 November 2013
N/A
Consent and Moderation Requirements (CMR) reference
0003
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
24888 version 2
Page 3 of 3
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Comments on this unit standard
Please contact The Skills Organisation reviewcomments@skills.org.nz if you wish to
suggest changes to the content of this unit standard.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016