Standard Industrial Thermocouples
Tube Skin Thermocouples
Many types of tube skin thermocouples can be specified by using the tables on the preeding pages. Units with expansion loops and special mounting arrangements are illustrated below. Tube Skin/Furnace tube thermocouple configurations vary widely with individual customers. If you have designs other than shown below, please send us your specifications. We are experienced in fabricating all designs currently used by most industries.
| Description | Head Assembly | Calibration | Order Code |
| As illustrated above with 1/4″ Cerampak, 310 S.S. sheath, Grounded welding pad 1 x 1 x 1/8″ S.S.
Furnished with one (1) hold down clamp. Expansion loops shop fabricated. |
Nipple Type (not shown) | Chromel/Alumel | TSA-K-(A)-(B) |
| Iron/Constantan | TSA-J-(A)-(B) | ||
| Nipple-Union-Nipple Type | Chromel/Alumel | TSB-K-(A)-(B) | |
| Iron/Constantan | TSB-J-(A)-(B) |
How to Order
Specify “Order Code” deired and replace (A) & (B) with the desired dimension in Inches.
Example: TSA-K-40-16
| Description | Head Assembly | Calibration | Order Code |
| As illustrated above with 1/4″ O.D. Cerampak, 310 S.S. sheath, Grounded welding pad 1 x 1 x 1/8″ S.S.
Furnished with one (1) hold down clamp. “S” bends for expansion are formed by field personnel. |
Nipple Type | Chromel/Alumel | TSC-K-(Length) |
| Iron/Constantan | TSC-J-(Length) | ||
| Nipple-Union-Nipple Type (not shown) | Chromel/Alumel | TSD-K-(Length) | |
| Iron/Constantan | TSD-J-(Length) |
How to Order
Specify “Order Code” of assembly desired and replace (Length) with length desired in inches.
Important: Length is measured from the bottom of the 1 1/2″ NPT bushing to end of pad. Be sure to include sufficient length to field form the “S” bends.
Example: TSD-K-120
Terminal Head Connected Thermocouple Assemblies
Table A
| Figure 1 | T/C Assembly with
1/2″ NPT Nipple/Union Extension (For Male Threaded Tubes and Wells) |
Figure 4 | Spring-Loaded T/C
Assembly with 1/2″ NPT Pipe Nipple Extension |
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 |
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| Figure 2 | T/C Assembly with
1/2″ NPT Hex Fitting/Coupling/ Nipple Extension |
Figure 5 | Spring-Loaded T/C
Assembly with 1/2″ NPT Hex Fitting/Union Nipple Extension |
 |
 |
||
| Figure 3 | Spring-Loaded T/C
Assembly with 1/2″ NPT Hex Fitting |
Figure 6 | Spring-Loaded T/C
Assembly with 1/2″ NPT Nipple/Union/Nipple Extension |
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 |
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* For custom extension length, add desired length as suffix to basic order code.
Example: 5046, for 6″ long extension.
** Fitting/Extension shown in figures 2, 3, & 5 only available in stainless steel.
– If connection head is not required, simply insert fiugre number as basic order code Example: 3
How to Order
Tables A -B (Pages 6-8)
| Page 6 | – | Page 7 | – | – | TW Section | |
| Basic Order Code | Element | “L” Length | Order Code for Thermowell | |||
| 104 | CU4K | 12 | If required (See Thermowell Section) | |||
| Table A | Table B | Table C |
| Type of Head | Head Material | Basic Order Code | |||||
| Figure 1 | Figure 2 | Figure 3 | Figure 4 | Figure 5 | Figure 6 | ||
Industrial Weatherproof Screw Cover Head |
Cast Aluminum | 100 | 200 | 300 | 400 | 500 | 600 |
Epoxy Coated Weatherproof Screw Cover Head |
Cast Iron | 102 | 202 | 302 | 402 | 502 | 602 |
General Purpose Weatherproof Screw Cover Head For Flip Top Style, add suffix “F” to basic order code |
Cast Aluminum | 104 | 204 | 304 | 404 | 504 | 604 |
Corrosion Resistant Weatherproof Screw Cover Head For Flip Top Style, add suffix “F” to basic order code |
Nylon | 106 | 206 | 306 | 406 | 506 | 606 |
CSA / ATEX / FM Approved Explosion Proof Head meets NEC Class I Div I Groups B, C, D Class II Div I, Groups E, F, G NEMA 4X, 7, 9, II2G, Ex d, IIC, Gb, II2 D, Ex tb, IIIC Db, IECEx |
Cast Aluminum | 108 | 208 | 308 | 408 | 508 | 608 |
| 316 Stainless Steel | 110 | 210 | 310 | 410 | 510 | 610 | |
Elements
Single Thermocouple, 1/4″ O.D. 316 S.S. Metal Sheathed Element
Grounded Hot Junction |
Ungrounded Hot Junction |
Table B
| ANSI Calibrations | Ordering Code | |
| Grounded | Ungrounded | |
| J – Iron – Constantan | C4J | CU4J |
| K – Chromel – Alumel | C4K | CU4K |
| N – Nicrosil – Nisil | C4N | CU4N |
| T – Copper – Constantan | C4T | CU4T |
| E – Chromel – Constantan | C4E | CU4E |
Dual Thermocouple 1/4″ O.D. 316 S.S. Metal Sheathed Element
|
Grounded Hot Junction |
Ungrounded Hot Junction |
Ungrounded & Isolated (Remote) Hot Junction |
Table B continued
| ANSI Calibrations | Ordering Code | ||
| Grounded | Ungrounded | Ungrounded Isolated | |
| J – Iron – Constantan | D4J | DU4J | DUR4J |
| K – Chromel – Alumel | D4K | DU4K | DUR4K |
| N – Nicrosil – Nisil | D4N | DU4N | DUR4N |
| T – Copper – Constantan | D4T | DU4T | DUR4T |
| E – Chromel – Constantan | D4E | DU4E | DUR4E |
– Sheath materials other then 316 S.S. can be ordered by choosing a material code from the Material Table in Thermowell section. Insert desired material code as suffix to order code. Example DU4K61
