25136 version 1
Page 1 of 3
Describe water metering and soil moisture devices and their selection,
for measuring performance of irrigation systems
Level
4
Credits
8
Purpose
This unit standard is for people who design irrigation systems.
People credited with this unit standard are able to describe water metering
and soil moisture devices for irrigation systems and their installation, and
selection and critical point locations of devices to assess performance of an
irrigation system.
Subfield
Water Industry
Domain
Irrigation
Status
Registered
Status date
17 October 2008
Date version published
17 October 2008
Planned review date
31 December 2011
Entry information
Open.
Accreditation
Evaluation of documentation and visit by NZQA, industry
and teaching professional in the same field from another
provider.
Standard setting body (SSB)
Primary Industry Training Organisation
Accreditation and Moderation Action Plan (AMAP) reference
0179
This AMAP can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Special notes
1
Legislation, regulations, and guidelines relevant to this unit standard include but are
not limited to the Health Act 1956, Health and Safety in Employment Act 1992,
Building Act 2004, Resource Management Act 1991, national policy statements,
regional resource management plans, and local bylaws.
 New Zealand Qualifications Authority 2016
25136 version 1
Page 2 of 3
2
Reference
The INZ Irrigation Design Code of Practice and Irrigation Design Standards, referred
to as the Irrigation Design Code of Practice is available from Irrigation New Zealand,
http://www.irrigationnz.co.nz/media/CoP.pdf.
3
Credit for this unit standard does not qualify the candidate to work in a drainlaying
situation that comes under the drainlayers licence requirements issued under the
Plumber, Gasfitters, and Drainlayers Act 2006 and any subsequent amendments.
Elements and performance criteria
Element 1
Describe water metering devices for irrigation systems and their installation.
Range
includes but is not limited to – flowrate, volumetric.
Performance criteria
1.1
The use of water metering devices is described in accordance with regulatory
compliance requirements, and their suitability for water quality and irrigation
system design.
Range
1.2
water level, water flow, quality.
Installation of water metering devices is described in accordance with
manufacturer’s instructions and regulatory requirements.
Element 2
Describe soil moisture devices for irrigation systems and their installation.
Range
fixed, movable, micro-irrigation.
Performance criteria
2.1
Soil moisture devices are described in terms of their operation, strengths and
weaknesses, suitability for different soil types, and applications in irrigation
systems.
2.2
Soil moisture devices are described in terms of the manufacturer’s
recommended placement in irrigation systems.
 New Zealand Qualifications Authority 2016
25136 version 1
Page 3 of 3
Element 3
Describe the selection and critical point locations for devices to assess performance of an
irrigation system.
Performance criteria
3.1
The selection criteria for pressure test points for an irrigation system are
described, and critical point locations are identified, in accordance with
manufacturer’s instructions.
3.2
Flow measurement test points for an irrigation system are described, and critical
point locations are identified in accordance with manufacturer’s instructions.
3.3
Energy measurement test points for an irrigation system are described, and
critical point locations are identified in accordance with manufacturer’s
instructions.
3.4
Running time measurement devices for an irrigation system are described, and
critical point locations are identified in accordance with manufacturer’s
instructions.
Range
includes but is not limited to – hour clock.
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.
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 Primary Industry Training Organisation standards@primaryito.ac.nz if
you wish to suggest changes to the content of this unit standard.
 New Zealand Qualifications Authority 2016