9467
17-Feb-16
1 of 6
MARITIME ENGINEERING
Diagnose unacceptable or unscheduled
variation in marine instrumentation and
control systems
level:
4
credit:
17
planned review date:
January 1998
sub-field:
Maritime
purpose:
This unit standard is for people in the maritime engineering
industry. People credited with this unit standard are able to:
identify marine instrumentation and control system variation
from the norm; establish the cause of variation in marine
instrumentation and control systems; and set up, adjust, and
operate testing equipment.
entry information:
Open.
accreditation option:
Evaluation of documentation and visit by NZQA and industry.
moderation option:
A centrally established and directed moderation system has
been established by Maritime Qualifications New Zealand
Inc.
special notes:
1
Testing equipment includes:
Electronic;
Pneumatic;
Electrical;
Hydraulic
Combinations of the above.
 New Zealand Qualifications Authority 2016
9467
17-Feb-16
2 of 6
MARITIME ENGINEERING
Diagnose unacceptable or unscheduled
variation in marine instrumentation and
control systems
2
Instrumentation and control systems include:
Electronic;
Pneumatic;
Electrical;
Hydraulic;
Combinations of the above including fire, smoke
and gas detectors.
3
Safety rules, regulations, legislation, and their
subsequent amendments include:
Safety of Life at Sea (SOLAS);
Marine Pollution (MARPOL);
Resource Management Act (RMA) 1994;
Maritime Transport Act 1994;
Company or Organisational rules and regulations.
4
Organisational technical engineering practices and
instructions are defined by:
Company specific operating procedures;
Manufacturer’s instructions;
Chief Engineer’s instructions.
5
Variances include:
Continuous;
Intermittent;
Reduced performance;
Malfunction;
Adverse trends which could lead to reduced
performance or malfunction.
 New Zealand Qualifications Authority 2016
9467
17-Feb-16
3 of 6
MARITIME ENGINEERING
Diagnose unacceptable or unscheduled
variation in marine instrumentation and
control systems
6
Alterations include:
Immediate shut down/change over;
Immediate replacement or repair;
Deferred replacement of or repair
Adjustment of presets;
Routine servicing, adjustment of operational
controls.
7
Procedures and specifications for working on
instrumentation and control systems are described in:
Technical instructions and manuals;
Manuals produced by manufacturers;
Industry codes of practice;
Company specific procedures;
Chief Engineer’s instructions.
8
Diagnostic procedures include:
Electrical and electronic;
Pneumatic;
Hydraulic;
Mechanical;
Combinations of the above.
Elements and Performance Criteria
element 1
Identify marine instrumentation and control system variation from the norm.
performance criteria
1.1
Operations to identify variance are planned and carried out in accordance with
established safety rules and regulations.
 New Zealand Qualifications Authority 2016
9467
17-Feb-16
4 of 6
MARITIME ENGINEERING
Diagnose unacceptable or unscheduled
variation in marine instrumentation and
control systems
1.2
Systems and procedures selected for identifying the extent and nature of the
variance comply with organisational engineering practices.
1.3
Alterations made to quantify the limits of the variance support the maintenance
of the ship’s operations.
1.4
Identification of the extent and nature of the variance is completed within stated
time scales.
Range:
1.5
stated by engineering supervisor.
The effect of the variance on associated plant and interfaced systems is
identified and recorded for future reference.
Range:
engine room log book, equipment log book.
element 2
Establish the cause of variation in marine instrumentation and control systems.
performance criteria
2.1
Investigations are planned and carried out in accordance with established
safety rules and regulations.
2.2
Isolation, dismantling, and reassembly of plant and equipment are consistent
with the planned investigation.
2.3
Specialist tools and equipment are used in accordance with technical and
manufacturer’s instructions.
Range:
specialist equipment - measuring and recording equipment,
system testing and monitoring equipment.
 New Zealand Qualifications Authority 2016
9467
17-Feb-16
5 of 6
MARITIME ENGINEERING
Diagnose unacceptable or unscheduled
variation in marine instrumentation and
control systems
2.4
Sequence of diagnostic actions supports the maintenance of the ship’s
operations and is agreed with operational and engineering supervisory
personnel.
2.5
Fault finding techniques are undertaken in accordance with instrumentation and
control systems engineering diagnostic procedures.
2.6
The cause of the identified variance is identified, recorded, and communicated
to the supervising engineer within stated time scales.
Range:
time scales are set by the supervising engineer;
recording - engine room log book, equipment log book.
element 3
Set up, adjust, and operate testing equipment.
performance criteria
3.1
The work sequence is in accordance with the ship’s maintenance plan
specification.
Range:
3.2
Testing equipment activities are performed in accordance with technical, safety,
and procedural specifications.
Range:
3.3
specifications - master schedule, breakdown procedures.
testing equipment activities operation.
setting up, adjustment and
The sequence and scope of planned work are completed within agreed time
frames.
Range:
as agreed between the engineering supervisor, trainee, and
operational supervising officer.
 New Zealand Qualifications Authority 2016
9467
17-Feb-16
6 of 6
MARITIME ENGINEERING
Diagnose unacceptable or unscheduled
variation in marine instrumentation and
control systems
3.4
Testing equipment is calibrated in accordance with specification.
Range:
3.5
Checks and tests are undertaken and completed in accordance with technical
procedures and specifications.
Range:
3.6
checks and tests - operational, static.
Detected faults and errors are responded to in accordance with organisational
technical engineering practices and instructions.
Range:
3.7
specification - manufacturer’s specifications, historical data and
records, test bed specifications.
errors and faults - operator error, component fault.
Maintenance records are updated and maintained in accordance with recording
criteria.
Range:
recording criteria - specified by company, law, as required to
maintain certification.
Comments to:
Maritime Qualifications New Zealand Inc
Unit Standard Revision
PO Box 160
WELLINGTON
by January 1998.
Please Note:
Providers must be accredited by the Qualifications Authority
before they can offer programmes of education and training
assessed against unit standards.
Accredited providers assessing against unit standards must
engage with the moderation system that applies to those unit
standards. [Please refer to relevant Plan ref: 0054].
 New Zealand Qualifications Authority 2016