ATS 4747.3-2008

1 - ATS 4747.3-2008 METERS FOR NON-URBAN WATER SUPPLY - SPECIFICATIONS FOR OPEN CHANNEL METERS
4 - PREFACE
5 - CONTENTS
7 - SECTION 1 SCOPE AND GENERAL
7 - 1.1 SCOPE
7 - 1.2 APPLICATION
8 - 1.3 NORMATIVE REFERENCES
10 - 1.4 DEFINITIONS
10 - 1.5 PREFERRED UNITS
11 - SECTION 2 MATERIALS
11 - 2.1 GENERAL
11 - 2.2 RESISTANCE TO CORROSION
11 - 2.2.1 General
11 - 2.2.2 Corrosion-resistant materials
12 - SECTION 3 METHODOLOGY
12 - 3.1 GENERAL
12 - 3.2 METHODS
13 - SECTION 4 PRINCIPLES OF MEASUREMENT-MODULAR METERING SYSTEMS
13 - 4.1 REQUIREMENTS RELATED TO SPECIFIC TECHNOLOGIES
14 - 4.2 METERING OF PARTIALLY FILLED PIPES
14 - 4.3 MODULAR OPEN CHANNEL METERING SYSTEMS
14 - 4.4 VELOCITY AREA METHODS
14 - 4.5 FLOW COMPUTER
16 - SECTION 5 PRINCIPLES OF MEASUREMENT-SELF-CONTAINED UNITS
16 - 5.1 GENERAL
16 - 5.2 INSTALLATION CONDITIONS
17 - SECTION 6 DESIGN
17 - 6.1 DISPLAY
17 - 6.1.1 General
17 - 6.1.2 Unit of measurement, symbol and placement
17 - 6.1.3 Indicating range
18 - 6.1.4 Types of display
18 - 6.1.5 Verification scale interval
18 - 6.2 OUTPUT
18 - 6.2.1 General
18 - 6.2.2 Flow rate
19 - 6.2.3 Flow volume
20 - 6.2.4 Data output
21 - 6.3 ELECTRONIC STORAGE
21 - 6.4 FREQUENCY OF MEASUREMENT
21 - 6.5 WATER METERS EQUIPPED WITH ELECTRONIC DEVICES
21 - 6.5.1 General
22 - 6.5.2 Power supply
23 - 6.6 PROTECTIVE DEVICES
23 - 6.7 FROST PROTECTION
23 - 6.8 REVERSE FLOW
23 - 6.9 OPERATING RANGE
23 - 6.10 ADJUSTMENT OF WATER METERS
24 - 6.11 ELECTRONIC SEALING DEVICES
24 - 6.11.1 Access
24 - 6.11.2 Exchangeable parts
24 - 6.11.3 Disconnection of parts
25 - 6.12 ENVIRONMENTAL REQUIREMENTS
25 - 6.12.1 General
25 - 6.12.2 Environmental Class B
25 - 6.12.3 Environmental Class C
25 - 6.13 ENCLOSURE
25 - 6.13.1 Ingress protection
25 - 6.13.2 Marking of submersible electrical sensor
26 - SECTION 7 PERFORMANCE REQUIREMENTS
26 - 7.1 GENERAL
26 - 7.2 MEASUREMENT PERFORMANCE
26 - 7.2.1 General
26 - 7.2.2 Values of Q1, Q3 and Q4
27 - 7.2.3 Maximum permissible error
27 - 7.2.4 Maximum permissible uncertainty
28 - 7.2.5 Meters field certification
28 - 7.2.6 Meters with separable calculator and measurement transducer
28 - 7.3 HEAD LOSS
28 - 7.4 OPERATING TEMPERATURE
28 - 7.5 ULTRAVIOLET LIGHT EXPOSURE
29 - 7.6 ELECTROMAGNETIC SUSCEPTIBILITY
29 - 7.7 LEAKAGE
29 - 7.8 ENDURANCE
29 - 7.9 PERFORMANCE TESTS FOR WATER METERS WITH ELECTRONIC DEVICES
29 - 7.9.1 General
29 - 7.9.2 Severity levels
29 - 7.9.3 Reference conditions
30 - 7.9.4 Type test of an electronic calculator
30 - 7.9.5 Performance tests
31 - SECTION 8 MARKING
31 - 8.1 PRODUCT MARKING
31 - 8.1.1 Identification marks
31 - 8.1.2 Verification marks
31 - 8.2 PRODUCT DOCUMENTATION
32 - 8.3 INSTALLATION
32 - 8.3.1 Installation instructions
32 - 8.3.2 Commissioning instructions
33 - APPENDIX A - PURCHASING GUIDELINES
33 - A1 GENERAL
33 - A2 INFORMATION TO BE SUPPLIED BY THE PURCHASER
33 - A3 INFORMATION TO BE PROVIDED BY THE MANUFACTURER
33 - A4 CERTIFICATES OF COMPLIANCE
34 - APPENDIX B - MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS AUSTRALIAN TECHNICAL SPECIFICATION
34 - B1 SCOPE
34 - B2 RELEVANCE
34 - B3 PRODUCT CERTIFICATION
34 - B4 TESTING
34 - B4.1 General
34 - B4.2 Type testing sampling
35 - B4.3 Retesting
35 - B4.4 Pattern approval
35 - B4.5 Acceptability of tests
36 - APPENDIX C - METROLOGICAL REQUIREMENTS
36 - C1 SCOPE
36 - C2 METROLOGICAL CHARACTERISTICS
36 - C2.1 Reference conditions
36 - C3 RATED OPERATING CONDITIONS (ROC)
36 - C3.1 Ambient temperature working range
36 - C3.2 Ambient humidity working range
37 - C3.3 Power source working range
38 - APPENDIX D - ERROR OF MEASUREMENT TEST (Self-contained meters volumetric test)
38 - D1 SCOPE
38 - D2 PRINCIPLE
38 - D3 APPARATUS
38 - D4 SAMPLING
39 - D5 ERRORS (OF INDICATION)
39 - D6 PROCEDURE
39 - D7 REPORT
41 - APPENDIX E - EXAMPLE OF UNCERTAINTY MEASUREMENT
41 - E1 NATURE OF ERRORS
41 - E2 EXPLANATION OF TERMS
41 - E2.1 Uncertainty of measurement
41 - E2.2 What is uncertainty of measurement?
41 - E2.3 Error versus uncertainty
41 - E2.4 True value and conventional true value
42 - E2.5 Error and uncertainty in non-urban water metering
44 - APPENDIX F - EVALUATION OF A FAMILY OF WATER METERS
44 - F1 FAMILIES OF WATER METERS
44 - F2 DEFINITION
44 - F3 METER SELECTION
46 - APPENDIX G - TESTS INVOLVING THE ELECTRONIC PART OF THE METER OR ITS DEVICES
46 - G1 SCOPE
46 - G2 DRY HEAT TEST
46 - G2.1 Objective
46 - G2.2 Preparation
46 - G2.3 Test conditions
46 - G2.4 Procedure
46 - G2.5 Severities
47 - G3 COLD TEST
47 - G3.1 Objective
47 - G3.2 Preparation
47 - G3.3 Test conditions
47 - G3.4 Procedure
47 - G3.5 Severities
47 - G4 DAMP HEAT TEST-CYCLIC
47 - G4.1 Objective
47 - G4.2 Preparation
48 - G4.3 Test conditions
48 - G4.4 Procedure
48 - G4.5 Severities
48 - G5 POWER VOLTAGE VARIATION TEST-METERS POWERED BY DIRECT A.C./D.C. CONVERTERS
48 - G5.1 Objective
48 - G5.2 Preparation
48 - G5.3 Test conditions
48 - G5.4 Procedure
49 - G5.5 Severities
49 - G6 POWER VOLTAGE VARIATION TEST-METERS POWERED BY PRIMARY BATTERIES
49 - G6.1 Objective
49 - G6.2 Preparation
49 - G6.3 Test conditions
49 - G6.4 Procedure
49 - G6.5 Severities
49 - G7 SHORT TIME POWER REDUCTIONS TEST
49 - G7.1 Objective
49 - G7.2 Test method
49 - G7.3 Preparation
50 - G7.4 Test conditions
50 - G7.5 Procedure
50 - G7.6 Severities
50 - G8 BURSTS TEST
50 - G8.1 Objective
50 - G8.2 Preparation
50 - G8.3 Test conditions
51 - G8.4 Procedure
51 - G8.5 Severities
51 - G9 ELECTROSTATIC DISCHARGE TEST
51 - G9.1 Objective
51 - G9.2 Preparation
51 - G9.3 Test conditions
51 - G9.4 Procedure
52 - G9.5 Severities
52 - G10 ELECTROMAGNETIC SUSCEPTIBILITY TEST
52 - G10.1 Objective
52 - G10.2 Preparation
52 - G10.3 Test conditions
52 - G10.4 Procedure
53 - G10.5 Severities
54 - APPENDIX H - CROSS-REFERENCE TO NMI DOCUMENTS
54 - H1 SCOPE
57 - APPENDIX I - BIBLIOGRAPHY

Sets out requirements for water meters for use in non-urban applications in open channel and part-filled pipe applications. It primarily covers metering for irrigation water.

This Australian Technical Specification specifies requirements for water meters for use in non-urban applications in open channel and part-filled pipe applications. It primarily covers metering for irrigation water; however, it is intended that it be used for non-urban water applications other than applications covered by AS 3565.1 or ATS 4747.2.Two types of meters are covered in this Australian Technical Specification, as follows:(a) A meter that defines its own geometry and is pattern-approved by a single supplier, referred to as ‘self-contained unit’.(b) A meter that is a device or a group of instruments that, as supplied, are individually pattern-approved, do not define geometry and require calibration after installation, referred to as ‘modular metering systems’.NOTE: Purchasing guidelines are given in Appendix A.The Australian Technical Specification covers meters that operate under the following conditions:(i) Open channels.(ii) Working water temperature range of 0.1°C to 30°C. The maximum admissible temperature is 50°C, which is the limiting condition for the meter.(iii) Ambient temperatures range of (5°C to 55°C.(iv) Ambient humidity range of 0% to 100% except for remote indicating devices where the range is 0% to 93%.This Australian Technical Specification is applicable to meters that are provided with their own geometry and meters calibrated in the field to defined geometry and capable of continuously determining, within the accuracy limits, the volume of water that has flowed through them, and that are continuously indicating the volume on a cumulative basis.NOTE: Meters with undefined or variable profile channel will be included in a separate part.

First published as ATS 4747.6-2008.