NZQA registered unit standard
24777 version 2
Page 1 of 4
Title
Operate scanning and optimising systems for a machine centre
Level
3
Credits
10
Purpose
People credited with this unit standard are able to: demonstrate
knowledge of the operation and operating principles of
scanning and optimising systems; operate the scanning and
optimising system; and monitor and control the performance of
the scanning and optimising system for a machine centre.
Classification
Solid Wood Manufacturing > Sawmilling
Available grade
Achieved
Explanatory notes
1
Range
Machine centres include but are not limited to – bucking and log merchandisers,
carriages, quads, twins, end dog, edgers, trimmers, dry mill rip lines;
evidence of one machine is required.
2
The following apply to the performance of outcomes 2 and 3 of this unit standard:
a All work practices must meet recognised codes of practice and documented
worksite health and safety and environmental procedures (where these exceed
the code) for personal, product and worksite health and safety, and must meet the
obligations required under current legislation, including the Health and Safety in
Employment Act 1992, the Resource Management Act 1991, and their
subsequent amendments.
b All work practices must meet documented worksite operating procedures. This
includes the recording (by electronic or non-electronic means) of activities,
events, and decisions.
c All evidence of communications gathered in relation to this unit standard must be
in accordance with worksite procedures for content, recipient, timing and method.
3
Definitions
Corrective action referred to in outcome 3 may include communication to
management, communication to on-site technical person, communication to off-site
technical support person, cleaning, communication with maintenance staff,
recalibration, or changes made to the operating system in accordance with worksite
documentation.
Worksite policies and procedures refer to documented policies and to documented or
other directions provided to staff. These include, but are not limited to, ways of
managing health and safety, environmental considerations, quality, and production,
and must conform to legislation. Examples include standard operating procedures,
company health and safety plans, on-site briefings, and supervisor’s instructions.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
24777 version 2
Page 2 of 4
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of the operation and operating principles of scanning and
optimising systems for machine centres.
Evidence requirements
1.1
Scanning and optimising systems are described in terms of their role in the
timber conversion process.
1.2
Types of scanning and optimising systems used in conjunction with machine
centres are identified and their purpose is described in accordance with
worksite policies and procedures.
1.3
The scanning process, and the optimising process used by the scanning and
optimising system, are described in accordance with worksite policies and
procedures.
1.4
Operating parameters and capability of the scanning and optimising system are
explained in accordance with worksite policies and procedures.
Range
1.5
Operating components of the scanning and optimising system are identified and
their purpose is explained in accordance with worksite policies and procedures.
Range
1.6
operating parameters may include but are not limited to – what the
scanner can ‘see’, what is hidden from view;
capability may include but is not limited to – characteristics of the
wood the scanner can detect (thickness, shape, wane, knots, grain
angle, colour, checks, stain), accuracy of items detected.
components may include but are not limited to – photo eye,
proximity, limit switch, encoder, light curtain, laser triangulation
system, laser range sensors, closed circuit digital (CCD) cameras,
basic optical system, X-ray system, grain angle detection system,
ultrasound system, software package.
Operation of the user display is described, and graphical and numerical
information displayed is identified and explained, in accordance with worksite
policies and procedures.
Range
Competenz
SSB Code 101571
graphical and numerical information may include but is not limited
to – set position, solution, saw position, defect locations, products
fitted, log or board surface.
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
24777 version 2
Page 3 of 4
Outcome 2
Operate the scanning and optimising system for a machine centre.
Evidence requirements
2.1
Hazards associated with operating the scanning and optimising system are
identified and actions to be taken to isolate, minimise or eliminate the hazards
are described in accordance with worksite policies and procedures.
Range
2.2
hazards may include but are not limited to – moving equipment,
radiation sources, saw dust, mobile plant, noise.
Safe work practices associated with operating the scanning and optimising
system are used in accordance with worksite policies and procedures and
legislative requirements.
Range
practices may include but are not limited to – isolation procedures,
lock-outs, emergency stops, machine guarding, wearing
appropriate safety equipment.
2.3
The scanning and optimising system is started, operated, and shut down in
accordance with manufacturer’s specifications and worksite policies and
procedures.
2.4
Operator level changes are made to the scanning and optimising system using
the software interface in accordance with worksite policies and procedures.
Range
changes may include but are not limited to – changing cut, putting
a product on, taking a product off.
Outcome 3
Monitor and control the performance of the scanning and optimising system for a machine
centre.
Evidence requirements
3.1
Scanning and optimising equipment output data are monitored and interpreted
in accordance with worksite policies and procedures.
Range
3.2
output data may include but is not limited to – error messages,
actual against predicted recovery data, image matching the timber
or log scanned.
Variances in the output timber from the scanning and optimising system are
identified and corrective action is taken in accordance with worksite policies and
procedures.
Range
Competenz
SSB Code 101571
variances may include but are not limited to – poor set–up of
optimisation parameters, products on the image not produced,
recovery calculated is not reflected in the products.
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
3.3
24777 version 2
Page 4 of 4
Equipment faults and malfunctions are identified and corrective action is taken,
in accordance with worksite policies and procedures.
equipment malfunctions may include but are not limited to –
sensor malfunctions, sensor failures, software malfunctions.
Range
3.4
Operator level calibration checks are completed and corrective action is taken,
in accordance with worksite policies and procedures.
3.5
Preventative maintenance and cleaning schedules for the scanning and
optimising system are carried out in accordance with worksite policies and
procedures.
Planned review date
31 December 2015
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
22 August 2008
31 December 2012
Review
2
15 April 2011
N/A
Consent and Moderation Requirements (CMR) reference
0173
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.
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 (CMRs). 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 Competenz info@competenz.org.nz if you wish to suggest changes to
the content of this unit standard.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016