ASTM E3137/E3137M-18
(Specification)Standard Specification for Heat Meter Instrumentation
Standard Specification for Heat Meter Instrumentation
ABSTRACT
This specification applies to heat meters used to measure heat in heat exchange circuits in which energy is absorbed (cooling) or given up (heating) by a flowing liquid. For this specification, the necessary elements of a heat meter consist of a sensor to measure flow of the heat-conveying liquid, a pair of temperature sensors that measure the temperature differential across the heat exchange circuit, and a device that receives input from the flow and temperature sensors and calculates energy. This specification does not cover electrical safety or mechanical safety (including pressure safety).
This specification defines heat meters as complete or combined instruments. A complete instrument refers to a heat meter that does not have separable subassemblies, while a combined meter is a heat meter that has separable subassemblies. It specifies the allowable flow rate maximum permissible error (MPE) by accuracy class and turndown; the combined allowable error percentages for the temperature sensor pair and the heat calculator for measured difference temperatures in –17°C [2°F] increments; maximum lead cross section and length requirements; types of instruments; metrological characteristics of flow sensors of heat meters and complete instruments; data exchange and communications protocols; heat meter testing methods; operating conditions during testing; type approval tests and measurements; surge transients for signal and dc lines; surge transients for ac power lines; carrier frequencies; field strength; initial verification tests; test temperature ranges; product marking and inscriptions; and installation and operation instructions.
SCOPE
1.1 This specification defines general specifications for heat meters. Heat meters are instruments that measure heat in heat exchange circuits in which energy is absorbed (cooling) or given up (heating) by a flowing liquid.
1.2 For this specification, the necessary elements of a heat meter consist of a sensor to measure flow of the heat-conveying liquid, a pair of temperature sensors that measure the temperature differential across the heat exchange circuit, and a device that receives input from the flow and temperature sensors and calculates energy.
1.3 Electrical safety is not a part of this specification.
1.4 Mechanical safety (including pressure safety) is not a part of this specification.
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:E3137/E3137M −18
Standard Specification for
1,2
Heat Meter Instrumentation
ThisstandardisissuedunderthefixeddesignationE3137/E3137M;thenumberimmediatelyfollowingthedesignationindicatestheyear
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
3
1.1 This specification defines general specifications for heat 2.1 CCT Standard:
meters. Heat meters are instruments that measure heat in heat ITS-90 International Temperature Scale of 1990
4
exchange circuits in which energy is absorbed (cooling) or 2.2 IAPWS Standard:
given up (heating) by a flowing liquid. IAPWS-IF97 Industrial Formulation 1997 for the Thermo-
dynamic Properties of Water and Steam
1.2 For this specification, the necessary elements of a heat
5
2.3 IEC Standards:
meterconsistofasensortomeasureflowoftheheat-conveying
IEC 61000 Part 4-2 Electrostatic Discharge Immunity Test
liquid, a pair of temperature sensors that measure the tempera-
IEC 61000 Part 4-3 Radiated, Radio-Frequency, Electro-
ture differential across the heat exchange circuit, and a device
magnetic Field Immunity Test
that receives input from the flow and temperature sensors and
IEC61000Part4-4 ElectricalFastTransient/BurstImmunity
calculates energy.
Test
1.3 Electrical safety is not a part of this specification.
IEC 61000 Part 4-5 Surge Immunity Test
1.4 Mechanical safety (including pressure safety) is not a IEC 60068: Environmental Testing Part 2.1 Test A: Cold
IEC 60068: Environmental Testing Part 2.2 Tests B: Dry
part of this specification.
Heat
1.5 The values stated in either SI units or inch-pound units
IEC 60068: Environmental Testing Part 2-30 Tests Db:
are to be regarded separately as standard. The values stated in
Damp Heat, cyclic
each system may not be exact equivalents; therefore, each
IEC 60529 Degrees of protection provided by enclosures (IP
system shall be used independently of the other. Combining
Code)
values from the two systems may result in nonconformance
IEC 60751 Industrial platinum resistance thermometer and
with the standard.
platinum temperature sensors
1.6 This standard does not purport to address all of the
IEC 60870 Part 5-1 Telecontrol equipment and systems
safety concerns, if any, associated with its use. It is the
IEC 61107 Data exchange for meter reading, tariff and load
responsibility of the user of this standard to establish appro-
control—Direct local data exchange
priate safety, health, and environmental practices and deter-
IEC TR 61000 Electromagnetic compatibility—Part 2:
mine the applicability of regulatory limitations prior to use.
Environment—Section 7: Low frequency magnetic fields
1.7 This international standard was developed in accor-
in various environments
6
dance with internationally recognized principles on standard-
2.4 NEMA Standards:
ization established in the Decision on Principles for the
NEMA250 Enclosures for Electrical Equipment (1000Volts
Development of International Standards, Guides and Recom-
Maximum)
mendations issued by the World Trade Organization Technical 7
2.5 OIML Standards:
Barriers to Trade (TBT) Committee.
OIML D11 General Requirements for measuring
instruments—Environmental conditions
OIMLR 49 Part 2 Water meters intended for the metering of
1
This specification is under the jurisdiction of ASTM Committee E44 on Solar, cold potable water and hot water
Geothermal and OtherAlternative Energy Sources and is the direct responsibility of
Subcommittee E44.25 on Heat Metering.
3
Current edition approved April 1, 2018. Published August 2018. Originally AvailablefromtheConsultativeCommitteeforThermometry,www.its-90.com.
4
approved in 2017. Last previous edition approved in 2017 as E3137/E3137M-17. Available from the International Association for the Properties of Water and
DOI: 10.1520/E3137_E3137M–18. Steam, www.iapws.org.
2 5
Through a mutual agreement with ASTM International (ASTM), the Interna- Available from the International Electrotechnical Commission, www.iec.ch.
6
tional Association of Plumbing and Mechanical Officials (IAPMO) contributed its Available from National Electrical Manufacturers Association (NEMA), 1300
technical expertise to ASTM, leading to the development of this ASTM Stan- N. 17th St., Suite 900, Arlington, VA 22209, http://www.nema.org.
7
dard. IAPMO and its membership continue to play an active role in providing Available from the International Organization of Legal Metrology,
technical guidance to the ASTM standards development process. www.oiml.org/en.
Copyright © ASTM
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E3137/E3137M − 17 E3137/E3137M − 18
Standard Specification for
1,2
Heat Meter Instrumentation
This standard is issued under the fixed designation E3137/E3137M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification defines general specifications for heat meters. Heat meters are instruments that measure heat in heat
exchange circuits in which energy is absorbed (cooling) or given up (heating) by a flowing liquid.
1.2 For this specification, the necessary elements of a heat meter consist of a sensor to measure flow of the heat-conveying
liquid, a pair of temperature sensors that measure the temperature differential across the heat exchange circuit, and a device that
receives input from the flow and temperature sensors and calculates energy.
1.3 Electrical safety is not a part of this specification.
1.4 Mechanical safety (including pressure safety) is not a part of this specification.
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in nonconformance with the standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
3
2.1 CCT Standard:
ITS-90 International Temperature Scale of 1990
4
2.2 IAPWS Standard:
IAPWS-IF97 Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam
5
2.3 IEC Standards:
IEC 61000 Part 4-2 Electrostatic Discharge Immunity Test
IEC 61000 Part 4-3 Radiated, Radio-Frequency, Electromagnetic Field Immunity Test
IEC 61000 Part 4-4 Electrical Fast Transient/Burst Immunity Test
IEC 61000 Part 4-5 Surge Immunity Test
IEC 60068: Environmental Testing Part 2.1 Test A: Cold
IEC 60068: Environmental Testing Part 2.2 Tests B: Dry Heat
IEC 60068: Environmental Testing Part 2-30 Tests Db: Damp Heat, cyclic
IEC 60529 Degrees of protection provided by enclosures (IP Code)
IEC 60751 Industrial platinum resistance thermometer and platinum temperature sensors
1
This specification is under the jurisdiction of ASTM Committee E44 on Solar, Geothermal and Other Alternative Energy Sources and is the direct responsibility of
Subcommittee E44.25 on Heat Metering.
Current edition approved Nov. 1, 2017April 1, 2018. Published December 2017August 2018. Originally approved in 2017. Last previous edition approved in 2017 as
E3137/E3137M-17. DOI: 10.1520/E3137_E3137M–17.10.1520/E3137_E3137M–18.
2
Through a mutual agreement with ASTM International (ASTM), the International Association of Plumbing and Mechanical Officials (IAPMO) contributed its technical
expertise to ASTM, leading to the development of this ASTM Standard. IAPMO and its membership continue to play an active role in providing technical guidance to the
ASTM standards development process.
3
Available from the Consultative Committee for Thermometry, www.its-90.com.
4
Available from the International Association for the Properties of Water and Steam, www.iapws.org.
5
Available from the International Electrotechnical Commission, www.iec.ch.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E3137/E3137M − 18
IEC 60870 Part 5-1 Telecontrol equipment and systems
IEC 61107 Data exchange for meter reading, tariff and load control—Direct local data exchange
IEC TR 61000 Electromagnetic compatibility—Part 2: Environment—Section 7: Low frequency magnetic fields in various
environments
6
2.4 NEMA Standards:
NEMA 250 Enclosures for Electrical Equipment (1000 Volts Maximum)
7
2.5 OIML Standards:
OIML D11
...
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