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 Replacement information This unit standard and unit standard 2661 have been replaced by unit standard 28076.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 Status information and last date for assessment for superseded versions Process Version Date Last Date for Assessment Registration 1 31 October 1995 31 December 2013 Revision 2 30 October 1997 31 December 2013 Revision 3 3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