Adjustable Bolt Spring Thermocouples
(Series TA8)
Ordering Information
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Part No.:
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| 1 Series |
2 Calibration |
3 Sheath Diameter |
4 Sheath Length |
5 Junction |
6 Lead Wire Material |
7 Lead Wire Length |
8 Screw/Spring Style |
9 Termination Style |
10 Special Features |
|---|---|---|---|---|---|---|---|---|---|
| TA8 |
| 2 | Calibration |
|---|---|
| J | Type J |
| K | Type K |
| T | Type T |
| E | Type E |
| 3 | Sheath Diameter |
|---|---|
| G | 0.118" (3mm) |
| H | 0.125" (3.2mm) (1/8") |
| J | 0.156" (4mm) |
| L | 0.188" (4.8mm) (3/16") (standard) |
| M | 0.236" (6mm) |
| N | 0.250" (6.4mm) (1/4") |
| P | 0.314" (8mm) (5/16") |
| Sizes for reference only (Standard tolerances apply) | |
| For other diameters consult factory |
| 4 | Sheath Length |
|---|---|
| R | 1/4" |
| S | 3/8" (Standard) |
| W | 1/2" |
| X | 5/8" |
| Y | 3/4" |
| Z | 1" |
| H | 1.25" |
| P | 1.5" |
| Q | 1.75" |
| T | 2" |
| 5 | Junction |
|---|---|
| G | 
Grounded (standard) |
| U | 
Ungrounded |
| W | 
Grounded (Dual Junction) |
| Y | 
Ungrounded Common (Dual) |
| 6 | Lead Wire Material |
|---|---|
| A | 
Fiberglass (800°F) |
| B | 
Fluoropolymer (400°F) |
| C | 
Polyimide (500°F) |
| E | 
High temperature fiberglass (1200°F) |
| F | 
Fiberglass with stainless steel braid (800°F) (standard) |
| G | 
Fluoropolymer with stainless steel braid (400°F) |
| Wire gauge determined by ECS based on sheath diameter. For special requirements consult factory |
| 7 | Lead Wire Length |
|---|---|
| 12-960 | |
| Over 960" contact factory |
| 8 | Screw/Spring Style |
|---|---|
| A | 
1/8”NPT screw/ 1/4”OD x 10” spring |
| B | 
M12X1.75 screw / 1/4”OD x 10” spring |
| C | 
1/8”NPT screw/ / 1/4”OD x 6” spring |
| D | 
M12X1.75 screw / 1/4”OD x 6” spring |
| Longer springs available. Consult factory |
| 9 | Termination Style |
|---|---|
| A | 
2" stripped leads (bare ends) |
| B | 
2" stripped leads w/ spade lugs |
| C | 
Standard male plug (400°F) |
| D | 
High temp male plug (660°F) |
| E | 
Max temp male plug (800°F) |
| G | 
Solid pin plug |
| H | 
Standard female jack (400°F) |
| J | 
Miniature plug (400°F) |
| K | 
Miniature jack (400°F) |
| L | 
2" stripped leads w/ #6 Ring terminals |
| N | 
Standard 3 pin plug w/ ground wire (400°F) |
| P | 
Dual molded male plug (400°F) |
| W | 
2” stripped leads w/ pin terminals |
| Q | 
2” stripped leads w/ wire ferrules |
X |
Extra long lead wire length (beyond 2” stripped leads) |
| 10 | Special Features |
|---|---|
| None | |
| 01 | 
Solid conductor (Lead wire) |
| 04 | 
Flat tip probe |
| 05 | 
Drill point tip |
| 06 | 
Epoxy seal |
| 07 | 
Cable Clamp |
| 08 | 
Bx Connector |
| 09 | 
Mating connector |
| 11 | 
International IEC 584-3 color coded leads |
| 12 | 
British color coded leads |
| 13 | 
German color coded leads |
| 14 | 
Japanese color coded leads |
| 15 | Reverse polarity color coded leads |
| 16 | 
French color coded leads |
| 18 | 
Moisture protection boot on connector |
| 20 | 
Add ground wire to TC & RTD |
| 29 | 
Silver solder thermocouple junction |
- Bolt spins over entire length of spring
- Spring has an OD of 0.254"
- 20 AWG stranded wire comes standard for 0.156" and larger
- 24 AWG stranded wire comes standard for 0.125" and 0.118"
