NZQA Expiring unit standard
2660 version 6
Page 1 of 3
Title
Demonstrate knowledge of advanced control loop methods
Level
4
Credits
3
Purpose
People credited with this unit standard are able to:
– demonstrate knowledge of advanced control loop methods.
Classification
Industrial Measurement and Control > Industrial Measurement
and Control - Theory
Available grade
Achieved
Explanatory notes
This unit standard has been developed for learning and assessment off-job.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of advanced control loop methods.
Evidence requirements
1.1
Limitations of single loop control are described.
Range
1.2
Application and principles of cascade control are described.
Range
1.3
mixing and blending, multiplier module, feedback trim.
Application and principles of feed-forward control are described.
Range
1.5
primary loop, secondary loop 5 to 10 times faster;
inner loop types – valve positioner, flow, temperature (fast),
pressure.
Application and principles of ratio control are described.
Range
1.4
no load correction, no supply correction.
demand compensation, improved control loop response;
feed-forward element – flow, pressure, temperature.
Application and principles of split range control are described.
Range
The Skills Organisation
SSB Code 100401
two control valves, heating and cooling applications.
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
1.6
Application and principles of auto-selector control are described.
Range
1.7
select high, select low.
Application and principles of adaptive control are described.
Range
1.8
2660 version 6
Page 2 of 3
pre-programmed adaptive, self-adaptive, self-tuning.
Boiler feed-water control principles are described.
Range
single element, two element, three element, temperature and
pressure compensation, shrink-swell dynamics of the drum.
Replacement information
This unit standard and unit standard 2661 have been
replaced by unit standard 28076.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
31 October 1995
31 December 2013
Revision
2
30 October 1997
31 December 2013
Revision
3
3 April 2001
31 December 2013
Review
4
22 June 2001
31 December 2013
Review
5
19 May 2008
31 December 2017
Review
6
28 November 2013
31 December 2017
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.
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.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
2660 version 6
Page 3 of 3
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.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016