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WRK Serial sheath thermocouples are new generation serial products elaboratelydesigned and manufactured by this company by adopting the oversees advancedtechniques.
They conform with IEC standards from the International Electrical Committee.Its technical performances may replace for the same kind imported goods.
They are widely applicable for the modernized equipments and high-tech fields such as aviation, atomic energy, petroleum, chemicals, metallurgy, power, machinery etc.
They are also suitable for the maintenance & exchange of full set of imported facilities, or the completion of output items and projects undergoing technical reform.
As the same with the ordinary industrial thermocouples, sheath thermocouples form a complete set with the display instruments& meters. It automatically detects or regulates gas, liquid media or solid surface temperatures.
The composition structure of sheath thermocouples
The appearances of sheathe thermocouples are greatly differential due to their differentuse requirements. But their basic structures are roughly the same. They are usually composed of the main components such as armored thermocouple elements, mounted fixing devices, connection boxes and so on.
1. Sheath thermocouple element: it is a solid substance combined by metal sleeves,insulants (commonly the magnesia powder) and thermocouple wires. According tothe structural form of the measured terminal, it may be divided into unground type,ground type, terminal exposed type, separable unground type for consumers' choice.If not defied by the consumers, we may offer the unground type.2. For installing the setting device, its structural form may be divided into non-fixeddevice, fixed cutting sleeve thread, movable cutting sleeve screw, fixedcutting sleeve flange, fixed compressed flange, flexible compressed flange, outerprotection tube type etc.3. The connection methods: its structure may be divided into porcelain patch board,easy type, co-external diameter protection cap type, anti-splash connecting boxtype, water-proof terminal block type, explosion isolation junction block type,socket type, spring-load type, handle type, with compensation conductor typeetc.Functional principle
The operational principle of sheath thermocouples is the same as that of the ordinaryindustrial thermocouples. It bases itself upon Seebeck effect, I.E. two homogeneousconductors with different constituents (hot electrode) compose the closed loop, when two ends exist the temperature gradient, the current goes through in the loop, therefore Seebeck lectrical potential-thermoelectric potential is in between the two terminals.
Performances&characteristics
1.Fit for measuring the substances' surface temperatures.
2.Quick heat responsive period, accurate measurement.
3.Simple structure, easy installation