ATS 4747.2-2008

1 - ATS 4747.2-2008 METERS FOR NON-URBAN WATER SUPPLY - SPECIFICATION FOR CLOSED CONDUIT METERS FULLY CHARGED
4 - PREFACE
5 - CONTENTS
7 - SECTION 1 SCOPE AND GENERAL
7 - 1.1 SCOPE
7 - 1.2 APPLICATION
8 - 1.3 NORMATIVE REFERENCES
9 - 1.4 DEFINITIONS
9 - 1.5 PREFERRED UNITS
10 - SECTION 2 MATERIALS
10 - 2.1 s GENERAL
10 - 2.2 RESISTANCE TO CORROSION
10 - 2.2.1 General
10 - 2.2.2 Corrosion-resistant materials
11 - SECTION 3 DESIGN
11 - 3.1 DIMENSIONS AND CONNECTIONS
11 - 3.1.1 Dimensions
11 - 3.1.2 Threaded end connections
11 - 3.1.3 Flanged end connections
11 - 3.1.4 Other end connections
11 - 3.1.5 Other connections
11 - 3.2 SELF-CONTAINED METERS
11 - 3.3 FLOW COMPUTER
12 - 3.4 ZERO FLOW CONDITIONS
12 - 3.5 METER DISPLAY
12 - 3.5.1 General
12 - 3.5.2 Unit of measurement, symbol and placement
12 - 3.5.3 Indicating range
13 - 3.5.4 Colour coding of indicating devices
13 - 3.5.5 Clarity of displays
13 - 3.5.6 Types of display
14 - 3.5.7 Supplementary devices
14 - 3.5.8 Verification devices-First element of a display-Verification scale interval
15 - 3.6 CALIBRATION ADJUSTMENT DEVICE
15 - 3.7 OUTPUT
15 - 3.7.1 General
15 - 3.7.2 Flow rate
16 - 3.7.3 Flow volume
17 - 3.7.4 Data output
18 - 3.8 ELECTRONIC STORAGE
18 - 3.9 FREQUENCY OF MEASUREMENT
18 - 3.10 WATER METERS EQUIPPED WITH ELECTRONIC DEVICES
18 - 3.10.1 General
18 - 3.10.2 Power supply
19 - 3.11 PROTECTIVE DEVICES
19 - 3.12 FROST PROTECTION
19 - 3.13 ELECTRONIC SEALING DEVICES
19 - 3.13.1 Access
20 - 3.13.2 Exchangeable parts
20 - 3.13.3 Disconnection of parts
20 - 3.14 ENVIRONMENTAL REQUIREMENTS
20 - 3.14.1 General
20 - 3.14.2 Environmental Class B
20 - 3.14.3 Environmental Class C
20 - 3.14.4 Environmental Class I
21 - 3.15 ENCLOSURE
21 - 3.15.1 Ingress protection
21 - 3.15.2 Marking of submersible electrical sensor
22 - SECTION 4 PERFORMANCE REQUIREMENTS
22 - 4.1 GENERAL
22 - 4.2 MEASUREMENT PERFORMANCE
22 - 4.2.1 General
22 - 4.2.2 Values of Q1, Q3 and Q4
23 - 4.2.3 Maximum permissible error
23 - 4.2.4 Maximum permissible uncertainty
24 - 4.2.5 Meters field certification
24 - 4.2.6 Insertion or clamp-on measurement devices
24 - 4.2.7 Meters with separable calculator and measurement transducer
24 - 4.2.8 Connection between electronic parts
24 - 4.3 PRESSURE LOSS
25 - 4.4 OPERATING TEMPERATURE
25 - 4.5 ULTRAVIOLET LIGHT EXPOSURE
25 - 4.6 ELECTROMAGNETIC SUSCEPTIBILITY
25 - 4.7 TORQUE RESISTANCE OF THREADED END CONNECTIONS
25 - 4.8 WATERTIGHTNESS
25 - 4.9 REVERSE FLOW
26 - 4.10 LEAKAGE
26 - 4.11 ENDURANCE
26 - 4.12 PERFORMANCE TESTS FOR WATER METERS WITH ELECTRONIC DEVICES
26 - 4.12.1 General
26 - 4.12.2 Severity levels
26 - 4.12.3 Reference conditions
26 - 4.12.4 Type test of an electronic calculator
27 - 4.12.5 Performance tests
28 - SECTION 5 MARKING AND PRODUCT DOCUMENTATION
28 - 5.1 IDENTIFICATION MARKS
28 - 5.2 VERIFICATION MARKS
29 - 5.3 PRODUCT DOCUMENTATION
29 - 5.4 INSTALLATION INSTRUCTIONS
29 - 5.5 COMMISSIONING INSTRUCTIONS
30 - APPENDIX A - PURCHASING GUIDELINES
30 - A1 GENERAL
30 - A2 INFORMATION TO BE SUPPLIED BY THE PURCHASER
30 - A3 INFORMATION TO BE PROVIDED BY THE MANUFACTURER
31 - A4 CERTIFICATES OF COMPLIANCE
32 - APPENDIX B - MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS AUSTRALIAN TECHNICAL SPECIFICATION
32 - B1 SCOPE
32 - B2 RELEVANCE
32 - B3 PRODUCT CERTIFICATION
32 - B4 TESTING
32 - B4.1 General
32 - B4.2 Apparatus for test rigs
33 - B4.3 Retesting
33 - B4.4 Pattern approval
33 - B4.5 Acceptability of tests
35 - APPENDIX C - METER SIZE AND OVERALL DIMENSIONS
37 - APPENDIX D - ERROR OF MEASUREMENT TEST
37 - D1 SCOPE
37 - D2 PRINCIPLE
37 - D3 APPARATUS
37 - D4 SAMPLING
38 - D5 ERRORS (OF INDICATION)
38 - D6 PROCEDURE
38 - D7 REPORT
40 - APPENDIX E - EXAMPLE OF UNCERTAINTY MEASUREMENT
40 - E1 NATURE OF ERRORS
40 - E2 EXPLANATION OF TERMS
40 - E2.1 Uncertainty of measurement
40 - E2.2 What is uncertainty of measurement?
40 - E2.3 Error versus uncertainty
40 - E2.4 True value and conventional true value
41 - E2.5 Error and uncertainty in non-urban water metering
43 - APPENDIX F - METROLOGICAL REQUIREMENTS
43 - F1 SCOPE
43 - F2 METROLOGICAL CHARACTERISTICS
43 - F2.1 Reference conditions
43 - F3 RATED OPERATING CONDITIONS (ROC)
43 - F3.1 Meter pressure classes
44 - F3.2 Working pressure range
44 - F3.3 Ambient temperature working range
44 - F3.4 Ambient humidity working range
44 - F3.5 Power source working range
45 - APPENDIX G - TEST FOR TORQUE RESISTANCE OF THREADED END CONNECTIONS
45 - G1 SCOPE
45 - G2 PRINCIPLE
45 - G3 APPARATUS
45 - G4 PROCEDURE
46 - G5 REPORT
47 - APPENDIX H - EVALUATION OF A FAMILY OF WATER METERS
47 - H1 FAMILIES OF WATER METERS
47 - H2 DEFINITION
47 - H3 METER SELECTION
49 - APPENDIX I - TESTS INVOLVING THE ELECTRONIC PART OF THE METER OR ITS DEVICES
49 - I1 SCOPE
49 - I2 DRY HEAT TEST
49 - I2.1 Objective
49 - I2.2 Preparation
49 - I2.3 Test conditions
49 - I2.4 Procedure
49 - I2.5 Severities
50 - I3 COLD TEST
50 - I3.1 Objective
50 - I3.2 Preparation
50 - I3.3 Test conditions
50 - I3.4 Procedure
50 - I3.5 Severities
50 - I4 DAMP HEAT TEST-CYCLIC
50 - I4.1 Objective
50 - I4.2 Preparation
51 - I4.3 Test conditions
51 - I4.4 Procedure
51 - I4.5 Severities
51 - I5 POWER VOLTAGE VARIATION TEST-METERS POWERED BY DIRECT A.C./D.C. CONVERTERS
51 - I5.1 Objective
51 - I5.2 Preparation
51 - I5.3 Test conditions
51 - I5.4 Procedure
52 - I5.5 Severities
52 - I6 POWER VOLTAGE VARIATION TEST-METERS POWERED BY PRIMARY BATTERIES
52 - I6.1 Objective
52 - I6.2 Test conditions
52 - I6.3 Procedure
52 - I6.4 Severities
52 - I7 VIBRATION (RANDOM) TEST
52 - I7.1 Objective
52 - I7.2 Preparation
52 - I7.3 Test conditions
53 - I7.4 Procedure
53 - I7.5 Severities
53 - I8 MECHANICAL SHOCK TEST
53 - I8.1 Objective
53 - I8.2 Preparation
53 - I8.3 Test conditions
53 - I8.4 Procedure
54 - I8.5 Severities
54 - I9 SHORT TIME POWER REDUCTIONS TEST
54 - I9.1 Objective
54 - I9.2 Preparation
54 - I9.3 Test conditions
54 - I9.4 Procedure
54 - I9.5 Severities
54 - I10 BURSTS TEST
54 - I10.1 Objective
55 - I10.2 Preparation
55 - I10.3 Test conditions
55 - I10.4 Procedure
55 - I10.5 Severities
55 - I11 ELECTROSTATIC DISCHARGE TEST
55 - I11.1 Objective
55 - I11.2 Preparation
55 - I11.3 Test conditions
56 - I11.4 Procedure
56 - I11.5 Severities
56 - I12 ELECTROMAGNETIC SUSCEPTIBILITY TEST
56 - I12.1 Objective
56 - I12.2 Preparation
56 - I12.3 Test conditions
57 - I12.4 Procedure
57 - I12.5 Severities
58 - APPENDIX J - CROSS-REFERENCE TO NMI DOCUMENTS
58 - J1 SCOPE
61 - APPENDIX K - BIBLIOGRAPHY

Sets out requirements for water meters for use in non-urban 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.

This Australian Technical Specification sets out requirements for water meters for use in non-urban 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.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.(b) A meter that is a device or a group of instruments that, as supplied, are individually pattern-approved, do not define the geometry and require calibration after installation. Purchasing guidelines are given in Appendix A.The Australian Technical Specification applies to meters that operate under the following conditions:(i) Closed conduit under full flow.(ii) Pressure ranges minimum 0.03 MPa to a value specified by the manufacturer. As a minimum, insertion or clamp-on meters will need to have the same working pressure range as the pipes they are designed to operate in.(iii) 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.(iv) Ambient air temperature range of (5°C to 55°C.(v) 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 self-contained 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.

First published as ATS 4747.2-2008.