Flame India offers three basic types of Noble Metal Thermocouples:- insulated wire, bare and ceramic insulated elements and thermocouples with protection tubes.
Type S thermocouple
-
This thermocouple defines the international practical temperature
scale between Antimony point (630.73 C ) and the gold point (1064.43 C).
This thermocouple is made from Platinum which is the negative leg and
much softer and Platinum 10% Rhodium which is the stiffer positive
leg, and has the same operating requirements as type R. Again This
thermocouple is suitable for continuous use up to 1400 C and for
intermittent use up to 1650 C.
Type R thermocouple
-
This thermocouple is made from Platinum which is the negative leg
and much softer and Platinum 13% Rhodium which is the stiffer positive
leg. It is suitable for use in oxidising or inert atmospheres and may be
used under reducing conditions or in a vacuum provided care is taken to
ensure the refractory materials are free from siliceous materials. Pure
recrystallised alumina is recommended. This thermocouple is suitable
for continuous use up to 1400 C and for intermittent use up to 1650 C.
Type B thermocouple
This combination platinum thermocouple is made from Platinum-30% Rhodium and Platinum -6% Rhodium. When they are compared to pure platinum thermocouples they suffer less from the effects of 'Rhodium migration' and may be used at somewhat higher temperatures, continuous operating 1500 C and up to 1800 C intermittently.GENERAL SPECIFICATION
|
TYPE |
R , S , B Type Thermocouple |
|
CONFIGURATION |
SIMPLEX / DUPLEX / MULTIPOINTS |
|
ELEMENT SIZE |
0.35 , 0.40 , 0.45, 0.50 MM OTHER SIZE ON REQUEST |
|
PROTECTION SHEATH |
INCONEL 600 INCONEL 800 RECRYSTALLISED ALUMINA CERAMIC - KER - 710 RECRYSTALLISED ALUMINA CERAMIC - KER - 610 |
|
PROTECTION SHEATH OD X ID (mm) |
6.0 X 4.0 MM 8.0 X 5.0 MM 10.0 X 7.0 MM 12.0 X 8.0 MM 15.0 x 10.0 MM 20.0 X 15.0 MM OTHER SIZES AS PER CUSTOMER SPECIFICATION. |
|
JUNCTION TYPE |
GROUNDED ROUND TIP UNGROUNDED ROUDN TIP |
|
HOLDING TUBE MATERIAL |
SS 316 , SS 310 , SS 304 , INCONEL 600 , INCONEL 800 |
|
FLANGE |
AS PER CUSTOMER SPECIFICATION |
|
TERMINAL HEAD |
CONNECTION HEAD IP
67 MINIATURE HEAD DOUBLE ENTRY HEAD FLAME PROOF HEAD * FOR OTHER TYPES OF HEAD PLEASE SPECIFY US |
APPLICATION RANGE
|
TC TYPE |
Wire Combination |
Application Range |
|
R |
Platinum Rhodium13% (+) |
0 to 1650°C |
|
S |
Platinum Rhodium 10%(+) |
0 to 1650°C |
|
B |
Platinum Rhodium 30%(+) |
600 to 1800°C |
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Tags: Noble Metal Thermocouple