S.NO. |
TYPE OF THERMOCOUPLE |
MATERIAL OF EXTENSION COMPENSATING CABLE |
SPECIFICATIOPN |
COLOUR CODE |
(+) LEAD |
(-) LEAD |
TEMP |
mV |
STANDARD TOLERANCE |
1. |
COPPER CONTANTAN
(Cu-Con) |
Copper (Cu) |
CONSTANTAN (Con)
OR EQUIVALENT |
-60°C
100°C
200°C |
- 2.216
4.239
9.178 |
±3°C
±3°C
±3°C |
(+) RED
(-) BLACK
(O) BLACK |
2. |
IRON-CONSTANTAN (Fe-Con) |
IRON (Fe)
OR EQUIVALANT |
CONSTANTAN (CON) |
100°C
200°C |
5.28
10.78 |
±3°C
±3°C |
(+) RED
(-) BLUE
(O) BLUE |
3. |
NICKEL/CHROMIUM-NICKEL/ALUMINUM
(Ni-Cr-Ni/AL) |
NICKEL/CHROMIUM
(NI/Cr) |
NICKEL/Aluminum
(Ni/Al) |
100°C
200°C |
4.10
8.13 |
±3°C
±3°C |
(+) RED
(-) GREEN
(O) GREEN |
|
COPPER-NICKEL ALLOY
COPPER-NICKEL ALLOY |
100°C
100°C |
4.10
4.10 |
±3°C
±3°C |
|
4. |
PLATINUM/RHODIUM-PLATINUM
(Pt/Rh-Pt) |
COPPER* |
COPPER-NICKEL ALLOY |
100°C
200°C |
0.644
1.463 |
±3°C
±3°C |
(+) RED
(-) WHITE
(O) WHITE |
5. |
PLATINUM/RHODIUM-PLATINUM/RHODIUM(Pt/Rh-Pt/Rh)) |
COPPER** |
COPPER-NICKEL ALLOY |
100°C
200°C |
|
±3°C
±3°C |
(+) RED
(-) YELLOW
(O)YELLOW |
6. |
NICKEL/CHROMIUM-NICKEL/COPPER
(Ni-Cr-Ni/Cu) |
NICKEL/CHROMIUM
(NI/Cr)*** |
COPPER OR
EQUIVALENT |
100°C
100°C |
6.95
14.66 |
±3°C
±3°C |
(+) RED
(-) VIOLET
(O)VIOLET |
7. |
NICKEL/CHROMIUM-CONSTANTAN
(Ni/Cr-Con) |
NICKEL/CHROMIUM
(NI/Cr) |
CONSTANTAN(Con)
OR EQUIVALENT |
|
|
|
(+) RED
(-) VIOLET
(O)VIOLET |
