ASTM F2046-00(2017)

Standard Specification for Tachometers, Various

ABSTRACT
This specification covers various tachometers capable of measuring rotational shaft speed. Special requirements for tachometer types used in naval shipboard applications. The materials for all parts shall be selected for long-term compatibility with the environment in which the tachometer will be installed or used. Qualification testing and quality conformance testing shall be performed.
SCOPE
1.1 This specification covers various tachometers capable of measuring rotational shaft speed.  
1.2 Special requirements for tachometer types used in naval shipboard applications are included in Supplement S1.  
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.  
1.4 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: 47.020.70 - Navigation and control equipment
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:F2046 −00 (Reapproved 2017) An American National Standard
Standard Specification for
1
Tachometers, Various
This standard is issued under the fixed designation F2046; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope (1)Centrifugal;
(2)Centrifugal, flexible drive;
1.1 Thisspecificationcoversvarioustachometerscapableof
(3)Chonometric;
measuring rotational shaft speed.
(4)Electrical, alternating current (ac) voltage responsive,
1.2 Specialrequirementsfortachometertypesusedinnaval
direct drive;
shipboard applications are included in Supplement S1.
(5)Electrical reactance;
1.3 The values stated in SI units are to be regarded as (6)Electrical, magnetovoltmeter, direct drive;
(7)Electrical, magnetovoltmeter;
standard. The values given in parentheses are mathematical
conversions to inch-pound units that are provided for informa- (8) Frequency responsive, electrical control box and
voltmeter, direct drive;
tion only and are not considered standard.
(9)Frequency sensitive, electrical, nonrotating magnetic
1.4 This international standard was developed in accor-
pickup, direct drive, consists of a magnetic pickup, transducer,
dance with internationally recognized principles on standard-
and indicator;
ization established in the Decision on Principles for the
(10)Photoelectric;
Development of International Standards, Guides and Recom-
(11)Digital contact;
mendations issued by the World Trade Organization Technical
(12)Centrifugal, flexible drive; and
Barriers to Trade (TBT) Committee.
(13)Vibrating resonant reed.
2. Referenced Documents
5. Ordering Information
2
2.1 ASTM Standards:
5.1 Thebuyershallprovidethemanufacturerwithallofthe
D3951Practice for Commercial Packaging
pertinent application data in accordance with the acquisition
requirements, 5.2.
3. Terminology
5.2 Acquisition Requirements—Acquisitiondocumentsshall
3.1 Definitions:
specify the following:
3.1.1 SI (Le Systeme International d’Unites) Units, n—units
(1)Title, number, and date of this specification;
of measurement recognized by the Comite’ International des
(2)Quantity of tachometers required;
Poids et Mesures (CIPM).
(3)Range;
3.1.2 tachometer, n—an instrument capable of generating,
(4)Manufacturer’s part number;
transmitting, and indicating information or signal that can be
(5)When qualification inspection is required;
convened into a function of rotational speed.
(6)Final disposition of qualification test samples;
(7)Type of electrical connection;
4. Classification
(8)Mounting method;
4.1 Design Types—The following are among the types of
(9)Environmental requirements;
tachometers available:
(10)Materials;
(11)Size and weight restrictions;
1
This specification is under the jurisdiction ofASTM Committee F25 on Ships
(12)Critical service life requirements;
and Marine Technology and is the direct responsibility of Subcommittee F25.10 on
(13)Performance requirements;
Electrical.
(14)Surface finish requirements;
Current edition approved Aug. 1, 2017. Published August 2017. Originally
(15)Cleaning requirements;
approved in 2000. Last previous edition approved in 2011 as F2046–00 (2011).
DOI: 10.1520/F2046-00R17.
(16)When certification is required;
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
(17)Marking requirements;
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
(18)Packaging requirements; and
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. (19)Preservation requirements.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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F2046−00 (2017)
6. Materials and Manufacture 11. Number of Tests and Retests
11.1 Test Specimens—The number of test specimens to be
6.1 Material Selection—The materials for all parts shall be
subjected to qualification testing shall depend on the tachom-
selected for long-term compatibility with the environment in
eter design. If each range is covered by a separate and distinct
which the tachometer will be installed or used.
design, a test specimen for each range will require testing. In
6.2 Material Inspection—Themanufacturershallberespon-
instances in which a singular design series may cover multiple
sible for ensuring that materials used are manufactured,
ranges and types, it is recommended that three test specimens
examined, and tested in accordance with the specifications and
betestedprovidedtheelectricalandmec
...

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: F2046 − 00 (Reapproved 2011) F2046 − 00 (Reapproved 2017)An American National Standard
Standard Specification for
1
Tachometers, Various
This standard is issued under the fixed designation F2046; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
1.1 This specification covers various tachometers capable of measuring rotational shaft speed.
1.2 Special requirements for tachometer types used in naval shipboard applications are included in Supplement S1.
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.
1.4 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. Terminology
3.1 Definitions:
3.1.1 SI (Le Systeme International d’Unites) Units—Units, n—units of measurement recognized by the Comite’ International
des Poids et Mesures (CIPM).
3.1.2 tachometer—tachometer, n—an instrument capable of generating, transmitting, and indicating information or signal that
can be convened into a function of rotational speed.
4. Classification
4.1 Design Types—The following are among the types of tachometers available:
(1) Centrifugal;
(2) Centrifugal, flexible drive;
(3) Chonometric;
(4) Electrical, alternating current (ac) voltage responsive, direct drive;
(5) Electrical reactance;
(6) Electrical, magnetovoltmeter, direct drive;
(7) Electrical, magnetovoltmeter;
(8) Frequency responsive, electrical control box and voltmeter, direct drive;
(9) Frequency sensitive, electrical, nonrotating magnetic pickup, direct drive, consists of a magnetic pickup, transducer, and
indicator;
(10) Photoelectric;
(11) Digital contact;
(12) Centrifugal, flexible drive; and
(13) Vibrating resonant reed.
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
F2046 – 00 (2006).(2011). DOI: 10.1520/F2046-00R11.10.1520/F2046-00R17.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2046 − 00 (2017)
5. Ordering Information
5.1 The buyer shall provide the manufacturer with all of the pertinent application data in accordance with the acquisition
requirements, 5.2.
5.2 Acquisition Requirements—Acquisition documents shall specify the following:
(1) Title, number, and date of this specification;
(2) Quantity of tachometers required;
(3) Range;
(4) Manufacturer’s part number;
(5) When qualification inspection is required;
(6) Final disposition of qualification test samples;
(7) Type of electrical connection;
(8) Mounting method;
(9) Environmental requirements;
(10) Materials;
(11) Size and weight restrictions;
(12) Critical service life requirements;
(13) Performance requirements;
(14) Surface finish requirements;
(15) Cleaning requirements;
(16) When certification is required;
(17) Marking requirements;
(18) Packaging requirements; and
(19) Preservation requirements.
6. Materials and Manufacture
6.1 Material Selection—The materials for all parts shall be selected for long-term compatibility with the environment in which
the tachometer will be installed or used.
6.2 Material Inspection—The manufacturer shall be responsible for ensuring that materials used are manufactured, examined,
and tested in accordance w
...