ASTM_E_1129_-_E_1129M_-_15.pdf

Designation:E1129/E1129M15Standard Specification forThermocouple Connectors1This standard is issued under the fixed designation E1129/E1129M;the number immediately following the designation indicates the yearof 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.Scope1.1 This specification covers separable single-circuit ther-mocouple connectors with two round pins.Connectors coveredby this specification must be rated for continuous use to at least300F(150C),but they may optionally be rated to a highertemperature.1.2 This specification does not cover multiple-circuitconnectors,multi-pin connectors,miniature connectors,orconnectors intended primarily for panel mounting.High tem-perature connectors(for example,those designed for continu-ous use at temperatures above approximately 500F(260C)are not intended to be covered by this specification.1.3 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard.1.4 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/E230M Specification and Temperature-ElectromotiveForce(EMF)Tables for Standardized ThermocouplesE344 Terminology Relating to Thermometry and Hydrom-etryE608/E608M Specification for Mineral-Insulated,Metal-Sheathed Base Metal ThermocouplesE2820 Test Method for Evaluating Thermal EMF Propertiesof Base-Metal Thermocouple Connectors3.Terminology3.1 DefinitionsThe definitions given in Terminology E344shall apply.3.2 Definitions of Terms Specific to This Standard:3.2.1 connector pair,nan assembly consisting of a plugand a jack,each having both positive and negative contactinserts,that will connect two parts of an electrical circuit andprovide a means of physically disconnecting the two partswithout the use of a tool.3.2.2 contact insert,nmetallic conductor assembly that,when installed in a connector body,provides a connectionbetween two parts of an electrical circuit.Plug connectors willcontain projecting prong contacts,while jack connectors willcontain recessed sockets or receptacle contacts.3.2.3 service life,nperiod of time that a connector assem-bly can be put to use and retain all physical and thermoelectricproperties.3.2.4 test difference,nthermoelectric emf value attribut-able to mated connectors observed by the test procedure of thisspecification.4.Significance and Use4.1 The widespread use of thermocouple connectors re-quires standardization of mating dimensions and performancecharacteristics.4.2 This specification describes standardized 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.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.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 Dec.1,2015.Published January 2016.Originallyapproved in 1986.Last previous edition approved in 2014 as E1129 14.DOI:10.1520/E1129_E1129M-15.2For 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 5.1.2 Plug connectors shall have two external prong con-tacts of differing diameters to prevent improper mating.Thenegative prong shall be the larger,as shown in Table 1 and Fig.1.5.1.3 Jack connectors shall have two internal socket con-tacts sized 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 of the other requirements of this specifi-cation.5.2 ANSI/ASTM Type:5.2.1 Connectors shall be produced in versions to matcheach of the standardized ANSI/ASTM thermocouple types