Thermocouples

Precision controls for every industry

Calibration of thermocouples or thermocouple wire is a laboratory test performed on a specific product or lot to determine its departure from a defined temperature–E.M.F. relationship. ASTM E 230 (ITS 90) describes the relationshipfor the various thermocouple types while calibrations are conducted followingthe general guidelines of ASTM E 220. Test results arereported in certificate form indicating test temperatures,°F or °C corrections and standards traceable data.Calibration is performed in accordance with MIL-C-45662,ANSI/NSCL Z540-1, and ISO 10012-1. Overall productionsatisfies the requirements of MIL-I-45208.

Additionally,the product testing and certification requirements ofAMS-2750-C and ASTM E 608 can be supplied.Each product tested can be tagged with a test number, dateand correction data. Pricing for calibration and testing isbased on tests selected, quantity to be tested, and numberof test temperatures. Test temperatures within the range of0° C (32° F) to 1371° C (2500° F) are available at competitivepricing. Sub-zero checking and high temperature (above1371° C) are available on special quotation only.

The following is a summary of the different types of sensor available from Athena:

Industrial Head-Type Thermocouple Assemblies

Part No. / Style

1002 - Hazardous Location Cast Aluminum Head
1003 - Screw-Cover Thermoplastic Head
1004 - Screw-Cover Cast Iron Head
2000 - Screw-Cover Cast Aluminum Head
3000 - 300°F (149°C) max. Open Head
3002 - 1000°F (538°C) max. Open Head – Simplex only
4000 - Screw Cover Mini-Head
4002 - Bayonet Cover Mini Head

Quick Disconnect Thermocouple Assemblies

Part No. / Style
5000 - 350°F (177°C) Max Standard Connector
5001 - 500°F (260°C) Max Standard Connector
5002 - 1000°F (538°C) Max Standard Connector
5003 - 350°F (177°C) Max Miniature Connector*

Lead Wire-Type Thermocouple Assemblies

Part No. / Style

2005 - 1/2˝ NPT x 1/2˝ NPT SS Fitting
2006 - 1/2˝ NPT x 1/2˝ NPT Spring LoadedStainless Steel Fitting
6000 - Transition Ftg. with Strain Relief Spring
6001 - Transition Ftg. w/o Strain Relief Spring
6002* - Transition to Polyurethane Coiled Cord.Simplex only.
7000 - Stripped 1˝ Leads

Noble metal elements are not recommended for use in base metal sheaths.

*Available on 6002 only. Expands to approximately 5´ per coiled foot.

Ceramic-Type Protection Tube Assemblies

Ceramic protection tube assemblies are offered in awide variety of aluminum connection heads andmounting options. Specifications and part numbersare detailed in the tables below to permit excellentflexibility in selecting the exact design required.Assemblies are shipped pre-tested and ready to install. *Maximum wire size is 20 gauge. **Minimum pipe extension length is 4 inches.

Part No. / Style

9076 - Screw Cover Cast Aluminum Head

Industrial Process/Pressure Vessel Thermocouples

Part No. / Style
22 - Screw cover and aluminum head withnipple and element
21 - Screw cover and aluminum head withnipple-union and element
20 - Screw cover and aluminum head withnipple-union-nipple and element

Bearing Metal Thermocouples

The sensors offered below are time-proven devicesfor measuring bearing temperatures on large rotatingequipment found in generating stations. Theirconstruction and materials meet rigid specifications andquality requirements of original equipment manufacturers.

Part No. / Style

6010 - 3/16˝ diameter sensor, spring loaded withtwisted and shielded lead wire for simplexor duplex bearing
metal thermocouplerequirements
6011 - 1/4˝ diameter sensor, spring loaded withtwisted and shielded lead wire for triplexbearing metal
thermocouple requirements
6012 - 3/16˝ diameter sensor, spring loaded withrip-cord style lead wire for simplex or duplexthrust bearing thermocouple requirements(deep mount)
6013 - 3/16˝ diameter sensor, spring loaded with ripcordstyle lead wire for simplex or duplexthrust bearing thermocouple requirements(shallow mount)

Straight-Metal Protection Tube Assemblies

These metal protection tube assemblies are offered in Straight Assemblies with Optionsa wide variety of aluminum connection heads and mounting options. Specifications and part numbers are detailed in the tables below, permitting the greatest flexibility in selecting the exact design required. Assemblies are shipped pre-tested and ready to install.

Part No. / Style

9035 - Schedule 40 pipe with weatherproof ScrewCover Cast Aluminum Connection Head
9037 - Schedule 80 pipe with weatherproof ScrewCover Cast Aluminum Connection Head

Angled-Metal Protection Tube Assemblies

Part No. / Style
9030 - Schedule 40 H.L. pipe with ScrewCover Cast Aluminum Head
9032 - Schedule 80 H.L. pipe with ScrewCover Cast Aluminum Head
9033 - Schedule 80 H.L. pipe with ScrewCover Cast Aluminum Head
9130 - Silicone carbide H.L. with ScrewCover Cast Aluminum Head
9131 - Silicone carbide H.L. with ScrewCover Cast Aluminum Head

Metal Protection Tubes

Metal protection tubes offer environmental andmechanical protection for base metal thermocouples.Care should be exercised in selection of material anddesign in order to achieve optimum performance andeconomy. Athena personnel can assist you in making thebest selection based on experience and the technicaldata presented in this catalog. The specification selectiontables below offer a variety of standard mounting options.

Part No. / Style

9026 - Schedule 40 pipe
9027 - Schedule 80 pipe

Replacement Elements – Base Metal Type

A thermocouple element is the heart of all thermocoupleassemblies. Prudent selection of gauge size, length andtype of insulation is essential for optimum performanceand economy. Athena’s personnel can assist you inmaking the best selection based on the experience andthe technical data present in this catalog.

Part No. / Style

9010 - Bare wire without insulators
9011 - 3" oval insulators. Not available in duplex
9012 - 3" round insulators
9013 - Ball & socket insulators
9014 - Flexible section for angle type

Noble Metal Thermocouple Assemblies

Noble metal thermocouple assemblies are for measurement of temperatures that range above that of base-metal couples, (to 3200°F/1760°C), or for more precise measurements at lower temperatures where the additional cost is justified. These assemblies come in a wide variety of ceramic primary protection tubes, and with ceramic or metal secondary protection tubes.

Thermocouple conductors are 24 gauge (0.020”) unless otherwise specified.

Part No. / Style
9001 - Noble Metal Assembly with Screw Cover CastAluminum Cover
9002 - Noble Metal Assembly with Open Terminal Head
9003 - Noble Metal Assembly with Open Terminal Headand 1" NPT Mounting Thread
9004 - Noble Metal Assembly with Screw Cover CastAluminum Head and Ceramic Primary Tube,Inconel 1/2" I.P.S. Secondary Tube
9005 - Noble Metal Assembly with Screw Cover CastAluminum Cover with Primary and SecondaryCeramic Tubes
9007 - Noble Metal Assembly with Cast Iron Head

Thermocouple Replacement Elements Noble and Refractory Metal Elements

Part No. / Style
9015 - Bare wire without insulators
9016 - Full length insulators
9017 - Full length insulator & collar
9017F - Flexible noble metal

Ceramic and Non-Metallic Protection Tubes

Ceramic protection tubes are hemispherically closedon one end, and are offered in mullite, hi-purityalumina, and high temperature materials. These tubesare superior to metallic tubes at high temperatures andprovide a virtually gas-tight enclosure to protectagainst harsh environments.

Part No. / Style

9022 - Plain
9023 - With collar
9024 - With 2" brass ferrule (7/8" – 27, thread)
9025 - With fitting – 3/4" NPT thread*
9125 - With fitting – 1-1/4" NPT thread
9042 - With 6" stainless steel pipe extension
9042C - With 6" carbon steel pipe extension
9044* - Metal-Ceramic – 7/8" O.D. – 3/4 NPT conduit connection