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Thermocouples and RTD's


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Thermocouples and RTD's

THERMOCOUPLES

GENERAL INFORMATION :

There are two main types of temperatures sensing devices for industrial use, the resistance bulb and the thermocouple. The thermocouple is the most widely used, and its principle lies in Seebecks discovery which was, when two dissimilar metals are joined in a closed circuit and the two junctions are at different temperatures, an e.m.f. develops. This e.m.f. can be fed into a recorder, controller or indicator.



SPECIAL FEATURES:-
· Most accurate
· High repeatability
· Simple servicing
· Wide Temperature range ( -150° C to 1750°C )

APPLICATIONS :-

We manufacture thermocouples suitable for Pipes, Tanks, Exhaustgas, Fuse, Flues, Ovens, Furnaces, Brickwork Kilns, Laboratry, Molten masses, Injection moulding machines, Extruders, Plastic Machines, Process Industries etc.

 

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THERMOCOUPLE COMBINATION RANGE
Nickel chromium V                                   Nickle aluminium    Cr/AI (K) -150ºC to 1250ºC
Iron V constantan 1/C (J) -150ºC to 870ºC
Copper V constantant Cu /Con (T) -150ºC to 350ºC
Platinum v platinum /13% rhodium Pt /PtRh       13% (R) 0 to 1600ºC
Platinum v platinum  10% rhodium* Pt /PtRh       10%(S) 0 to 1550ºC
Resistance bulb Pt 100 ohms at 0ºC -220ºC + 600ºC
* Unless otherwise ordered all platinum thermocouples are supplied with Platinum V platinum 13% rhodium wires.