ASTM F2070-00(2017)

Standard Specification for Transducers, Pressure and Differential, Pressure, Electrical and Fiber-Optic

ABSTRACT
This specification covers the requirements for pressure and differential pressure transducers for general applications. Pressure transducers typically consist of a sensing element that is in contact with the process medium and a transduction element that modifies the signal from the sensing element to produce an electrical or optical output. Some parts of the transducer may be hermetically sealed if those parts are sensitive to and may be exposed to moisture. Pressure connections must be threaded with appropriate fittings to connect the transducer to standard pipe fittings or to other appropriate leak-proof fittings. The output cable must be securely fastened to the body of the transducer. Most common sensing elements are diaphragms, bellows, capsules, Bourdon tubes, and piezoelectric crystals. The function of the sensing element is to produce a measurable response to applied pressure or vacuum. The response may be sensed directly on the element or a separate sensor may be used to detect element response. The following are the different types of electrical pressure transducers: differential transformed transducer, potentiometric transducer, strain gage transducer, variable reluctance transducer, and piezoelectric transducer. Different kinds of fiber-optic pressure transducers shall be discussed: Fabry-Perot interferometer, Bragg grating interferometer, quartz resonator, and micromachined membrane/diaphragm deflection. The following physical properties of transducers shall be determined: enclosure, transducer mounting, external configuration, standard electrical connection, pressure connections, damping, size, and weight. Different tests shall be conducted in order to determine the service life and overall performance of the transducers.
SCOPE
1.1 This specification covers the requirements for pressure and differential pressure transducers for general applications.  
1.2 Special requirements for naval shipboard applications are included in Supplementary Requirements S1, S2, and S3.  
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard. Where information is to be specified, it shall be stated in SI units.  
1.4 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.  
1.5 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.

General Information

• Status: Historical
• Publication Date: 31-Jul-2017
• ICS: 17.100 - Measurement of force, weight and pressure
• Technical Committee: F25 - Ships and Marine Technology
• Drafting Committee: F25.10 - Electrical

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F2070 −00 (Reapproved 2017) AnAmerican National Standard
Standard Specification for
Transducers, Pressure and Differential, Pressure, Electrical
1
and Fiber-Optic
This standard is issued under the fixed designation F2070; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
4
1. Scope 2.3 ISO Standards:
ISO 9001Quality System—Model for QualityAssurance in
1.1 This specification covers the requirements for pressure
Design/Development, Production, Installation, and Ser-
and differential pressure transducers for general applications.
vicing
1.2 Special requirements for naval shipboard applications
3. Terminology
are included in Supplementary Requirements S1, S2, and S3.
3.1 Terms marked with “ANSI/ISA S37.1” are taken di-
1.3 The values stated in SI units are to be regarded as
rectly fromANSI/ISAS37.1 (R-1982) and are included for the
standard. The values given in parentheses are mathematical
convenience of the user.
conversions to inch-pound units that are provided for informa-
3.2 Definitions:
tion only and are not considered standard. Where information
3.2.1 Terminology consistent with ANSI/ISA S37.1 shall
is to be specified, it shall be stated in SI units.
apply, except as modified by the definitions listed as follows:
1.4 This standard does not purport to address all of the
3.2.2 absolute pressure, n—pressure measured relative to
safety concerns, if any, associated with its use. It is the
zero pressure (vacuum). ANSI/ISA S37.1
responsibility of the user of this standard to establish appro-
3.2.3 ambient conditions, n—conditions such as pressure
priate safety, health and environmental practices and deter-
and temperature of the medium surrounding the case of the
mine the applicability of regulatory limitations prior to use.
transducer. ANSI/ISA S37.1
1.5 This international standard was developed in accor-
3.2.4 burst pressure, n—the maximum pressure applied to
dance with internationally recognized principles on standard-
the transducer sensing element without rupture of the sensing
ization established in the Decision on Principles for the
element or transducer case as specified.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
3.2.5 calibration, n—the test during which known values of
Barriers to Trade (TBT) Committee. measurands are applied to the transducer and corresponding
output readings are recorded under specified conditions.
2. Referenced Documents ANSI/ISA S37.1
2
3.2.6 common mode pressure, n—the common mode pres-
2.1 ASTM Standards:
sure is static line pressure applied simultaneously to both
D3951Practice for Commercial Packaging
pressure sides of the transducer for the differential pressure
3
2.2 ANSI/ISA Standards:
transducer only.
ANSI/ISA S37.1Electrical Transducer Nomenclature and
3.2.7 differential pressure, n—the difference in pressure
Terminology
between two points of measurement. ANSI/ISA S37.1
3.2.8 environmental conditions, n—specified external
conditions,suchasshock,vibration,andtemperature,towhich
1
This specification is under the jurisdiction ofASTM Committee F25 on Ships
a transducer may be exposed during shipping, storage,
and Marine Technology and is the direct responsibility of Subcommittee F25.10 on
Electrical. handling, and operation. ANSI/ISA S37.1
Current edition approved Aug. 1, 2017. Published August 2017. Originally
3.2.9 error, n—the algebraic difference between the indi-
approved in 2000. Last previous edition approved in 2011 as F2070–00 (2011).
cated value and the true value of the measurand.
DOI: 10.1520/F2070-00R17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
ANSI/ISA S37.1
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
4
the ASTM website. Available from International Organization for Standardization (ISO), ISO
3
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St., Central Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier,
4th Floor, New York, NY 10036, http://www.ansi.org. Geneva, Switzerland, http://www.iso.org.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959. United States
1

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F2070−00 (2017)
3.2.10 fiber-optic pressure transducer, n—a device that 3.2.26 ripple, n—the peak-to-peak ac component of the dc
converts fluid pressure, by means of changes in fiber-optic output.
properties, to an output that is a function of
...

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: F2070 − 00 (Reapproved 2011) F2070 − 00 (Reapproved 2017)An American National Standard
Standard Specification for
Transducers, Pressure and Differential, Pressure, Electrical
1
and Fiber-Optic
This standard is issued under the fixed designation F2070; 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 covers the requirements for pressure and differential pressure transducers for general applications.
1.2 Special requirements for naval shipboard applications are included in Supplementary Requirements S1, S2, and S3.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
mathematical conversions to inch-pound units that are provided for information only and are not considered standard. Where
information is to be specified, it shall be stated in SI units.
1.4 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 and health practices,safety, health and environmental practices and
determine the applicability of regulatory limitations prior to use.
1.4 Special requirements for naval shipboard applications are included in Supplementary Requirements S1, S2, and S3.
1.5 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
2
2.1 ASTM Standards:
D3951 Practice for Commercial Packaging
3
2.2 ANSI/ISA Standards:
ANSI/ISA S37.1 Electrical Transducer Nomenclature and Terminology
4
2.3 ISO Standard:Standards:
ISO 9001 Quality System—Model for Quality Assurance in Design/Development, Production, Installation, and Servicing
3. Terminology
3.1 Terms marked with (ANSI/ISA S37.1)“ANSI/ISA S37.1” are taken directly from ANSI/ISA S37.1 (R-1982) and are
included for the convenience of the user.
3.2 Definitions:
3.2.1 Terminology consistent with ANSI/ISA S37.1 shall apply, except as modified by the definitions listed as follows:
3.2.2 absolute pressure—pressure, n—pressure measured relative to zero pressure (vacuum). (ANSI/ISA S37.1)ANSI/ISA
S37.1
3.2.3 ambient conditions—conditions, n—conditions such as pressure and temperature of the medium surrounding the case of
the transducer. (ANSI/ISA S37.1)ANSI/ISA S37.1
1
This specification is under the jurisdiction of ASTM Committee F25 on Ships and Marine Technology and is the direct responsibility of Subcommittee F25.10 on
Electrical.
Current edition approved April 1, 2011Aug. 1, 2017. Published April 2011August 2017. Originally approved in 2000. Last previous edition approved in 20062011 as
F2070F2070 – 00 (2011). — 00 (2006). DOI: 10.1520/F2070-00R11.10.1520/F2070-00R17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.10036, http://www.ansi.org.
4
Available from International Organization for Standardization (ISO), 1 rue de Varembé, Case postale 56, CH-1211, Geneva 20, Switzerland. ISO Central Secretariat,
BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier, Geneva, Switzerland, http://www.iso.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2070 − 00 (2017)
3.2.4 burst pressure—pressure, n—the maximum pressure applied to the transducer sensing element without rupture of the
sensing element or transducer case as specified.
3.2.5 calibration—calibration, n—the test during which known values of measurands are applied to the transducer and
corresponding output readings are recorded under specified conditions. (ANSI/ISA S37.1)ANSI/ISA S37.1
3.2.6 common mode pressure—pressure, n—the common mode pressure is static line pressure applied simultaneously to
...