ASTM_E_1684_-_10.pdf

Designation:E168410Standard Specification forMiniature Thermocouple Connectors1This standard is issued under the fixed designation E1684;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers separable single-circuit minia-ture thermocouple connectors with two flat pins.Connectorscovered by this specification must be rated for continuous useto at least 300F(150C),but they may optionally be ratedhigher.1.2 This specification does not cover multiple-circuitconnectors,multi-pin connectors,standard size connectors,orconnectors intended primarily for panel mounting.High-temperature connectors(for example,those designed for con-tinuous use at temperatures significantly above approximately500F(260C)are not intended to be covered by thisspecification.1.3 The values stated in inch-pound units are to be regardedas the standard.The values given in parentheses are forinformation only.1.4 The plug and jack may be ordered separately but manyof the connector characteristics(see Table 1)are qualified as amated pair.The requirements in this standard are applicable forthe connector pair supplied by the same manufacturer.1.5 The following precautionary statement pertains only tothe test methods portion,Section 9,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 The following documents of the latest issue form a partof this specification to the extent referenced herein.In case ofconflict between this specification and another referenceddocument,this specification shall take precedence.2.2 ASTM Standards:2E230 Specification and Temperature-Electromotive Force(EMF)Tables for Standardized ThermocouplesE344 Terminology Relating to Thermometry and Hydrom-etry3.Terminology3.1 DefinitionsThe definitions given in Terminology E344shall apply.3.2 Definitions of Terms Specific to This Standard:3.2.1 connector pair,nassembly consisting of a plug anda jack,each having both positive and negative inserts,that willconnect two parts of an electrical circuit and provide a meansof physically disconnecting the two parts without the use oftools.3.2.2 contact insert,nmetallic conductor assemblies that,when installed in connector bodies,provide connections be-tween two parts of an electrical circuit.Plug connectors willcontain projecting prong contacts,while jack connectors willcontain recessed socket or receptacle contacts.3.2.3 service life,ninterval of time that a connectorassembly will be put to use and retain all physical andthermoelectric properties.3.2.4 test difference,napparent thermoelectric differenceattributable to mated connectors observed by the test procedureof this specification.4.Significance and Use4.1 The widespread use of thermocouple connectors re-quires standardization of mating dimensions and performancecharacteristics.4.2 This specification describes miniaturized thermocoupleconnector dimensions and capabilities and includes test proce-dures suitable for evaluating the performance of a particularspecimen or design.The tests described are not intended forroutine inspection or rapid testing of large groups of connectorsor for quality control purposes.1This specification is under the jurisdiction of ASTM Committee E20 onTemperature Measurement and is the direct responsibility of Subcommittee E20.04on Thermocouples.Current edition approved Nov.1,2010.Published December 2010.Originallyapproved in 1995.Last previous edition approved in 2005 as E1684 05.DOI:10.1520/E1684-10.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.Classification5.1 Plugs or Jacks:5.1.1 Connectors shall be constructed as either plugs orjacks,and these two forms shall be designed to connect witheach other.5.1.2 Plug connectors shall have two external prong con-tacts of differing sizes to prevent improper mating.Thenegative prong shall be the wider,as indicated in Table 2 andFig.1.5.1.3 Jack connector shall have two internal socket contactssized and spaced to receive and accommodate the prongcontacts of the mating plug.Jack connectors shall also includea means of producing and maintaining sufficient contactpressure to meet all the other requirements of this specification.5.2 ANSI/ASTM Type:5.2.1 Connectors shall be produced in vers