Richards Thermocouple and Temperature Sensor Catalog 16

Thermocouples - Probes without Connectors or Heads

! 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. Also, sheaths can be made of other materials and sizes - see page on “Miniature Tubes”

Thermocouple Probes have a maximum service temperature of 1300°F (700°C) depending on the type and gauge of the thermocouple wire used in their construction. The elements are made with impregnated fiberglass wire. The 30 gauge 1/16” O.D. probes have a high temperature limit of 400°F (200°C) due to Kapton insulation on the element. A grounded junction is standard to help prevent the element from pulling out of the tube and to provide a rapid temperature response time.

Wire Gauge

Outside Diameter Inches mm

Application

Type K

16 20 20 24 30 16 20 20 24 30 16 20 20 24 30 16 20 20 24 30 16 20 20 24 30 16 20 20 24 30

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

6.4 6.4 4.8 3.3 1.6 6.4 6.4 4.8 3.3 1.6 6.4 6.4 4.8 3.3 1.6 6.4 6.4 4.8 3.3 1.6 6.4 6.4 4.8 3.3 1.6 6.4 6.4 4.8 3.3 1.6

16K4P-G-9M4-X-Y 20K4P-G-9M4-X-Y 20K4P-G-9M3-X-Y 24K4P-G-9M2-X-Y 30K4P-G-9M1-X-Y

Probe, Plain Standard plain probe. Specify : “X” overall length, and “Y” probe sheath length.

1

16K4P-G-9M4-X-Y-OB8 20K4P-G-9M4-X-Y-OB8 20K4P-G-9M3-X-Y-OB8 24K4P-G-9M2-X-Y-OB8 30K4P-G-9M1-X-Y-OB8 16K4P-G-9M4-X-Y-CF 20K4P-G-9M4-X-Y-CF 20K4P-G-9M3-X-Y-CF 24K4P-G-9M2-X-Y-CF 30K4P-G-9M1-X-Y-CF 16K4P-G-9M4-X-Y-FEZ 20K4P-G-9M4-X-Y-FEZ 20K4P-G-9M3-X-Y-FEZ 24K4P-G-9M2-X-Y-FEZ 30K4P-G-9M1-X-Y-FEZ 16K45P-G-9M4-X-H-C 20K45P-G-9M4-X-H-C 20K45P-G-9M3-X-H-C 24K45P-G-9M2-X-H-C 30K45P-G-9M1-X-H-C 16K90P-G-9M4-X-H-C-FEZ 20K90P-G-9M4-X-H-C-FEZ 20K90P-G-9M3-X-H-C-FEZ 24K90P-G-9M2-X-H-C-FEZ 30K90P-G-9M1-X-H-C-FEZ

2 Probe, Overbraided OB8 = 304SS OB9 = Alloy 9 (600) The overbraid is on the exposed insulated wire portion of the probe - from the sheath to the cold end. It is used to protect the insulation from abrasion and to help shield against electrical pick up. Probe, Compression Fitting A Compression Fitting ( CF ) is added to the assembly. A 1/8” NPT stainless steel compression fitting for sheaths with outside diameters of 1/16” to 3/16”; 1/4” NPT for 1/4” sheaths. Special sizes are available - under Accessories, Compression Fittings . 3 The ” Z ” dimension may or may not completely cover the normally exposed insulated wire depending on what length you specify. The Compression Fitting is optional, if desired add “ CF ” to the part number. Probe, Angle 90 degree and 45 degree angel are standard, but other angels can be ordered. The part numbers shown are for 45 degree probes. For 90 degree, change the “45” to “90” in the part number. For the optional Relief Spring ( SR ) add “ SR ” to the end of the part number . The Compression Fitting is optional, if desired add “ CF ” to the part number. Probe, Angle, Flexible Extension 90 degree and 45 degree angel are standard, but other angels can be ordered. The part numbers shown are for 90 degree probes. For 45 degree, change the “90” to “45” in the part number. The Compression Fitting is optional, if desired add “ CF ” to the part number. Spade Lugs ( LS ) also available (at added cost). 5 6 4 Probe, Flexible Extension Flexible extensions ( FE ) are made with Armored Cable ( AC ).

#9 Alloy (600) is standard, but other alloys such as: #7 (446SS), #8 (304SS), *16 (316SS), Hastelloy C etc. are also available. See listings under “Miniature Metal Protection Tubes. Just replace the “9” in the part number with the desired alloy.

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