24151 version 1
Page 1 of 4
Demonstrate knowledge of automotive oscilloscopes
Level
4
Credits
2
Purpose
This theory-based unit standard is for people in the automotive electrical
repair industry. People credited with this unit standard are able to
demonstrate knowledge of: oscilloscope types, operation, and terminology;
automotive oscilloscope features; and automotive oscilloscope display
interpretations.
Subfield
Motor Industry
Domain
Automotive Electrical and Electronics
Status
Registered
Status date
25 January 2008
Date version published
25 January 2008
Planned review date
31 December 2012
Entry information
Recommended: Unit 21676, Select test equipment and
test an automotive electrical circuit, or demonstrate
equivalent knowledge and skills.
Accreditation
Evaluation of documentation and visit by NZQA and
industry.
Standard setting body (SSB)
NZ Motor Industry Training Organisation (Incorporated)
Accreditation and Moderation Action Plan (AMAP) reference
0014
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
None.
 New Zealand Qualifications Authority 2016
24151 version 1
Page 2 of 4
Elements and performance criteria
Element 1
Demonstrate knowledge of oscilloscope types, operation, and terminology.
Performance criteria
1.1
The oscilloscope as a graph-displaying device is described in accordance with
oscilloscope manufacturer specifications.
Range
1.2
The uses of the screen grid and display controls to control and measure
waveforms are described in accordance with oscilloscope manufacturer
specifications.
Range
1.3
vertical, horizontal, and trigger settings.
Types of equipment and their set-up procedures are described in accordance
with oscilloscope manufacturer specifications.
Range
1.4
vertical (Y) axis representing voltage, horizontal (X) axis
representing time, intensity (Z) axis representing display
brightness.
analogue, digital;
set-up procedures – grounding, controls, probes.
Oscilloscope terminology is described in terms of measurement and
performance.
Range
waveform types – sine waves, square and rectangular waves,
triangle and sawtooth waves, step and pulse shapes;
waveform measurements – frequency and period, voltage, phase
and phase shift;
performance – bandwidth, rise time, vertical sensitivity, sweep
speed, gain accuracy, time base or horizontal accuracy, sample
rate, resolution, record length.
 New Zealand Qualifications Authority 2016
24151 version 1
Page 3 of 4
Element 2
Demonstrate knowledge of automotive oscilloscope features.
Performance criteria
2.1
Features of automotive oscilloscopes are described in accordance with
oscilloscope manufacturer specifications.
Range
includes but is not limited to – automotive software and updates,
universal serial bus (USB) compatible port connection, protection
against overloads and short circuits, high resolution, large
memory, ability to capture multiple waveforms from various
sensors at once, ease of operation, workshop-based and mobile,
ability to test and measure wide range of electrical and electronic
automotive components and circuits.
Element 3
Demonstrate knowledge of automotive oscilloscope display interpretations.
Performance criteria
3.1
An oscilloscope graticule is interpreted in terms of major and minor divisions.
3.2
Voltage measurements are interpreted in terms of voltage peak and peak-topeak voltage.
3.3
Time and frequency measurements are interpreted in accordance with the
oscilloscope scale and screen area.
3.4
Rise time and pulse width measurement points are interpreted in terms of
voltage percentages.
3.5
Phase shift measurements are interpreted in terms of cycle time or XY mode.
Please note
Providers must be accredited by NZQA, or an inter-institutional body with delegated
authority for quality assurance, before they can report credits from assessment against
unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be accredited by NZQA before they can register
credits from assessment against unit standards.
Accredited providers and Industry Training Organisations assessing against unit standards
must engage with the moderation system that applies to those standards.
 New Zealand Qualifications Authority 2016
24151 version 1
Page 4 of 4
Accreditation requirements and an outline of the moderation system that applies to this
standard are outlined in the Accreditation and Moderation Action Plan (AMAP). The
AMAP 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 NZ Motor Industry Training Organisation (Incorporated)
info@mito.org.nz if you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016