ASTM F2046-00(2011)
(Specification)Standard Specification for Tachometers, Various
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 the standard. The values given in parentheses are for information only.
General Information
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 2011) An American National Standard
Standard Specification for
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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 (7)Electrical, magnetovoltmeter;
(8) Frequency responsive, electrical control box and
1.1 Thisspecificationcoversvarioustachometerscapableof
voltmeter, direct drive;
measuring rotational shaft speed.
(9)Frequency sensitive, electrical, nonrotating magnetic
1.2 Specialrequirementsfortachometertypesusedinnaval
pickup, direct drive, consists of a magnetic pickup, transducer,
shipboard applications are included in Supplement S1.
and indicator;
1.3 The values stated in SI units are to be regarded as the (10)Photoelectric;
(11)Digital contact;
standard. The values given in parentheses are for information
only. (12)Centrifugal, flexible drive; and
(13)Vibrating resonant reed.
2. Referenced Documents
5. Ordering Information
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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—unitsof
(1)Title, number, and date of this specification;
measurement recognized by the Comite’ International des
(2)Quantity of tachometers required;
Poids et Mesures (CIPM).
(3)Range;
3.1.2 tachometer—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;
(1)Centrifugal;
(11)Size and weight restrictions;
(2)Centrifugal, flexible drive;
(12)Critical service life requirements;
(3)Chonometric;
(13)Performance requirements;
(4)Electrical, alternating current (ac) voltage responsive,
(14)Surface finish requirements;
direct drive;
(15)Cleaning requirements;
(5)Electrical reactance;
(16)When certification is required;
(6)Electrical, magnetovoltmeter, direct drive;
(17)Marking requirements;
(18)Packaging requirements; and
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This specification is under the jurisdiction ofASTM Committee F25 on Ships (19)Preservation requirements.
and Marine Technology and is the direct responsibility of Subcommittee F25.10 on
Electrical. 6. Materials and Manufacture
Current edition approved April 1, 2011. Published April 2011. Originally
6.1 Material Selection—The materials for all parts shall be
approved in 2000. Last previous edition approved in 2006 as F2046–00 (2006).
selected for long-term compatibility with the environment in
DOI: 10.1520/F2046-00R11.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
which the tachometer will be installed or used.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.2 Material Inspection—Themanufacturershallberespon-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. sible for ensuring that materials used are manufactured,
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F2046−00 (2011)
examined, and tested in accordance with the specifications and eter design. If each range is covered by a separate and distinct
standards as applicable. design, a test specimen for each range will require testing. In
instances in which a singular design series may cover multiple
7. Physical Properties
ranges and types, it is recommended that three test specimens
betestedprovidedtheelectricalandmechanicalsimilaritiesare
7.1 Size and Weight—The buyer may have intended appli-
approved by the buyer. In no case, however, should less than
cations where size and weight are limited. Size and weight
three units, one unit each representing low, medium, and high
limitations shall be specified in the acquisition requirements.
ranges, be tested, regardless of design similarity.
8. Performance Requirements
12. Test Methods
8.1 Service Life—Thebuyermayhaveaminimumspecified
12.1 Tests—All tests shall be performed in accordance with
se
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