NZQA Expiring unit standard
2665 version 6
Page 1 of 4
Title
Demonstrate knowledge of instrumentation calibration terminology
and standards
Level
3
Credits
3
Purpose
People credited with this unit standard are able to:
– explain terms used in instrument calibration;
– define and explain calibration standards; and
– define and explain requirements for calibration equipment
and records.
Classification
Industrial Measurement and Control > Industrial Measurement
and Control - Theory
Available grade
Achieved
Explanatory notes
1
This unit standard has been developed for learning and assessment off-job.
2
Details of standards relating to primary and secondary measurement can be obtained
from the Crown Research Institute (CRI) Measurement Standards Laboratory,
previously the Department of Scientific and Industrial Research (DSIR).
3
Reference
ANSI/ISA-51.1-1979 (R1993) Process Instrumentation Terminology;
and all subsequent amendments and replacements.
4
Definitions
Industry requirements – includes all asset owner requirements; manufacturers’
specifications; enterprise requirements which cover the documented workplace
policies, procedures, specifications, and business requirements; and quality
management requirements relevant to the workplace in which the assessment is
carried out.
IANZ – International Accreditation New Zealand.
Total reliability in test results and inspection reports is vital. Accreditation by IANZ
ensures that the laboratory, radiology service or inspection service that carries out
these tests or inspections is technically competent.
IRL – Industrial Research Limited - Measures Standards Laboratories (MSL).
Outcomes and evidence requirements
Outcome 1
Explain terms used in instrument calibration.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
2665 version 6
Page 2 of 4
Evidence requirements
1.1
'Range' is explained and applied to examples.
Range
1.2
'Span' is explained and applied to examples.
Range
1.3
4-20mA, 20-100kPa, 3-15psi.
'Linearity' is explained and applied to examples.
Range
1.6
273C to 100C, -10 to 50C.
'Zero suppression' is explained and applied to examples.
Range
1.5
upper range value, lower range value.
'Zero elevation' is explained and applied to examples.
Range
1.4
lower range value, upper range value.
independent, terminal based, zero based.
Calibration terms are explained and applied to examples.
Range
error, accuracy, hysteresis, dead band, repeatability,
reproducibility.
Outcome 2
Define and explain calibration standards.
Evidence requirements
2.1
Primary measurement standards are defined.
Range
2.2
Secondary measurement standards are defined.
Range
2.3
Measurement Standard Laboratory (MSL), standards traceable
internationally, melting point of tin, triple point of water.
dead weight tester, digital pressure gauge or calibrator, precision
traceable resistance temperature detector and indicator,
International Accreditation NZ (IANZ).
The requirements and documentation of calibration instruments in terms of
certification and regular calibration against National Standards are defined.
Outcome 3
Define and explain requirements for calibration equipment and records.
Evidence requirements
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
2665 version 6
Page 3 of 4
3.1
Accuracy ratio of calibration standard compared to unit under test (UUT) is
defined.
3.2
Calculations and examples regarding calibration accuracy ratio are performed.
3.3
Examples of digital sampling and their implications in terms of transient
(instrument) accuracy are given.
3.4
Relevance of smart configurable instrument accuracy and calibration standards
is identified.
3.5
Ideal requirements for an instrument calibration laboratory are identified in
accordance with industry requirements.
Range
3.6
temperature and humidity controlled environment.
Procedures for recording instrument calibration data are described in
accordance with industry requirements.
Replacement information
This unit standard has been replaced by unit standard
28078.
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.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
2665 version 6
Page 4 of 4
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 (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