Metal Sheathed Thermocouple Wire
Cerampak Thermocouple Wire
Cerampak - magnesium oxide insulated, metal sheathed thermocouple wire - is used primarily to fabricate thermocouple assemblies. The rugged construction of compacted MgO insulation inside a metal sheathing also makes it useful as an extension wire through harmful environments.
All sheath materials are furnished in a properly annealed condition to allow hand bending in the field.
Cerampak is weldable, flexible - can be bend on a radius two times its diameter - and is moisture resistant when properly sealed.
Material selected from the following Table B will be furnished in a coil with the ends sealed. No wires will be exposed unless requested.
Table A is provided to help in the proper selection to suit your requirements.
Table A - Nominal Wire Size and Lengths
| Sheath, Fraction |
Diameter, Inches |
Conductor Size (AWG)* |
| Single |
Duplex |
| - |
.040 |
33 |
N/A |
| 1/16 |
.063 |
29 |
30 |
| 1/8 |
.125 |
24 |
26 |
| 3/16 |
.188 |
19 |
20 |
| 1/4 |
.250 |
16 |
19 |
| 5/16 |
.313 |
14 |
16 |
Table B - Material Selection
| Sheath, Diameter |
Order Code |
|
ANSI Calibration |
Order Code |
|
Sheath Material |
Order Code |
| .040" |
040 |
Chromel/Constantan |
E |
304 St. St. |
34 |
| 1/16" (.063") |
1 |
Iron Constantan |
J |
310 St. St. |
30 |
| 1/8" (.125") |
2 |
Chromel/Alumel |
K |
316 St. St. |
36 |
| 3/16" (.188") |
3 |
Copper/Constantan |
T |
347 St. St. |
37 |
| 1/4" (.250") |
4 |
Plat 10% RH/Plat |
S |
410 St. St. |
40 |
| 5/16" (.313") |
5 |
Plat 13% RH/Plat |
R |
446 St. St. |
46 |
| 3/8" (.375") |
6 |
Plat 30% RH/Plat 6% RH |
B |
Inconel 600 |
60 |
| |
|
|
|
Inconel 601 |
61 |
| |
|
|
|
Inconel 702 |
72 |
| |
|
|
|
Inconel 800 |
80 |
Notes:
1. For Premium Grade (Special Limits of Error) material: add "PG to the calibration code. Example: 4KPG60
2. For Duplex (4 wire) material: add prefix "2" to the calibration code. Example: 42K60
3. The most commonly used sizes and materials are listed. Others are available - Specify.
How To Order:
Make a selection from each of the 3 sections of Table B and combine to form a catalog number. Specify catalog number and length required.
For duplex (4 wire), special limits of error, or special material - refer to the notes above.
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