Richards Thermocouple and Temperature Sensor Catalog 16

Thermocouples - Miniature Assemblies with Hex Fittings and Heads

Miniature Thermocouple Assemblies have a maximum service temperature of 1300° F (700°C) depending on the type and guage of the thermocouple wire used. They have limited use at higher temperatures due to the types of insulation used in theri construction. Miniature thermocouples are more felexible than MGO (Swaged) types. 1/8”, 3/16” and 1/4” O.D. tube assemblies are made with silicon impregnated fiberglass elements. ! Note: If you would like to order a Type E, J, N, or Type T assembly, just substitute the “ K “ with a “ E “, “ J “, “ N “, or “ T ” in the part numbers listed on this page. Double element assemblies are also available. Add a ” D ” to the part number. Example: 20K4DM-9M4-48-SH. Probes can also be made with Types: B, R, and S, phone for details. Sheaths can be made of other materials and sizes - see page on “Miniature Tubes”.

Wire Gauge

Outside Diameter Inches mm

Application

Type K

Miniature, Hex Fitting Miniature Thermocouple Assemblies with a hex fitting ( HX ) are used where a stainless steel 1/2” x 1/2” NPT fitting is desirable for mounting to the process and connection head. The hex fittings are welded to the tube for strength and proper sealing. A grounded junction is standard to help prevent the element from pulling out of the tube. The elements in hex fitting assemblies are made with silicon im- pregnated fiberglass insulated wire.

16 20 20 24

6.4 6.4 4.8 3.3

16K4M-G-9M4-HX-* 20K4M-G-9M4-HX-* 20K4M-G-9M3-HX-* 20K4M-G-9M2-HX-*

1/4 1/4 3/16 1/8

1

16

6.4 6.4 4.8 3.3

16K4M-G-9M4-HX-*-SH 20K4M-G-9M4-HX-*-SH 20K4M-G-9M3-HX-*-SH 20K4M-G-9M2-HX-*-SH

2 Miniature, Hex, Standard Head (SH) - Aluminum A floating junction, stainless steel 1/2” x 1/2” NPT hex fitting, and ( SH ) style aluminum weather resistant head are all standard.

1/4 1/4 3/16 1/8

20 20 24

16

1/4 1/4 3/16 1/8

6.4 6.4 4.8 3.3

16K4M-G-9M4-*-SH 20K4M-G-9M4-*-SH 20K4M-G-9M3-*-SH 20K4M-G-9M2-*-SH

Miniature, Standard Head (SH) - Aluminum A floating junction, stainless steel compression fitting ( CF ) , bushing, and ( SH ) style aluminum weather resistant head are all standard.

20 20 24

3

16 20 20 24

1/4 1/4 3/16 1/8

6.4 6.4 4.8 3.3

16K4M-G-9M4-*-NH 20K4M-G-9M4-*-NH 20K4M-G-9M3-*-NH 24K4M-G-9M2-*-NH

Miniature, Hex, Nylon Head (NH) A floating junction, stainless steel 1/2” x 1/2” NPT hex fitting, and ( NH ) style aluminum weather resistant head are all standard. Miniature, Open Terminal (OTH) Miniature Open Terminal ( OTH ) Assemblies are used in clean environment applications where the terminals can be exposed for easy access or low profile situations. 3/26” diameter tubes and floating junction are standard. The elements are made from silicon impregnated fiberglass insulated wire. Miniature, Molded Handle (MH) Molded Handle ( MH ) assemblies are made with a plastic grip. The leads are covered with stainless steel overbraid for protection and the standard termination is a flat pin male mini connector. Floating junction is standard.

4

20 20 24

1/4 3/16 1/8

6.4 4.8 3.3

20K4M-G-9M4-*-OTH4 20K4M-G-9M3-*-OTH3 20K4M-G-9M2-*-OTH2

5

16

6.4 6.4 4.8 3.3 1.6

16K4M-G-9M4-MH-Y-Z 20K4M-G-9M4-MH-Y-Z 20K4M-G-9M3-MH-Y-Z 24K4M-G-9M2-MH-Y-Z 30K4M-G-9M1-MH-Y-Z

1/4 1/4 3/16 1/8 1/16

20 20 24 30

6

* Add required thermocouple length. Multiples of 6” (152.4 mm) starting at 12” are in stock. Note: * = Probe length in figures shown.

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Phone: 617.527.4385 Fax: 617.964.3746 Email: sales@asrichards.com