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ISA
CODE |
Conductor & Characteristics |
Temperature Range |
Limits of Error |
| Positve |
Negative |
Fahrenheit |
Centigrade |
Standard |
Special |
| J |
Iron
(Magnetic) |
Constantan
(Non-magnetic) |
32° to 1382° |
0° to 750° |
2.2°C (4°F)
or 0.75% |
1.1°C (2°F)
or 0.4% |
| Jx |
Iron
(White) |
Constantan
(Red) |
32° to 392° |
0° to 200° |
2.2°C (4°F) |
1.1°C (2°F) |
| T |
Copper
(Yellow Metal) |
Constantan
(Silver Metal) |
-328° to 32° |
-200° to 0° |
1°C (1.8°F)
or 1.5% |
-- |
| 32° to 662° |
0° to 350° |
1°C (1.8°F)
or 0.75% |
0.5°C (0.9°F)
or 0.4% |
| Tx |
Copper
(Blue) |
Constantan
(Red) |
-76° to +212° |
-60° to +100° |
1°C (1.8°F) |
0.5°C (0.9°F) |
| K |
Chromel
(Non-magnetic) |
Alumel
(Magnetic) |
32° to 2282° |
0° to 1250° |
2.2°C (4°F)
or 0.75% |
1.1°C (2°F)
or 0.4% |
| Kx |
Chromel
(Yellow) |
Alumel
(Red) |
32° to 392° |
0° to 200° |
2.2°C (4°F) |
-- |
| E |
Chromel |
Constantan |
32° to 1652° |
0° to 900° |
1.7°C (3°F)
or 0.5% |
1°C (1.8°F)
or 0.4% |
| Ex |
Chromel
(Purple) |
Constantan
(Red) |
32° to 392° |
0° to 200° |
1.7°C (3°F) |
-- |
| S |
Platinum
10% Rhodium |
Platinum |
32° to 2642° |
0° to 1450° |
1.5°C (2.7°F)
or 0.25% |
0.6°C (1.1°F)
or 0.1% |
| R |
Platinum
13% Rhodium |
Platinum |
32° to 2642° |
0° to 1450° |
1.5°C (2.7°F)
or 0.25% |
0.6°C (1.1°F)
or 0.1% |
| Sx |
Copper
(Black) |
11 Alloy
(Red) |
32° to 392° |
0° to 200° |
.057mV |
-- |
| B |
Platinum
30% Rhodium |
Platinum
6% Rhodium |
1472° to 3092° |
800° to 1700° |
0.5% |
-- |
| Bx |
Copper
(Black) |
Copper
(White) |
32° to 212° |
0° to 100° |
0.000mV |
-- |
| W |
Tungsten |
Tungsten
26% Rhenium |
32° to 800° |
0° to 472° |
4.5°C (8°F)
1%*** |
-- |
| 800° to 4200° |
472° to 2315° |
| W3 |
Tungsten
3% Rhenium |
Tungsten
25% Rhenium |
32° to 800° |
0° to 472° |
4.5°C (8°F)
1%*** |
-- |
| 800° to 4200° |
472° to 2315° |
| W5 |
Tungsten
5% Rhenium |
Tungsten
26% Rhenium |
32° to 800° |
0° to 472° |
4.5°C (8°F)
1%*** |
-- |
| 800° to 4200° |
472° to 2315° |
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| NOTES |
| NOTE 1: |
Values for J, T, K, E, R, S and B are the same as those specified in ANSI specification MC96.1-1982. |
| NOTE 2: |
Where error is given in percent, the percentage applies to the temperature being measured, not the range. Select whichever is greater. |
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THERMOCOUPLE TECHNOLOGY, INC., 350 New Street, Quakertown, PA 18951
Telephone 215-529-9394 Fax 215-529-9397
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