Petrochemical Industry-purpose Thermocouple (Thermal Resistance)

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Petrochemical Industry-purpose Thermocouple (Thermal Resistance)
Posting date : Jul 22, 2011
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96-
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Application Operation Theory Thermocuple electrodes are made of two different materials. Temperature difference between measuring end and reference end results in pyroelectric potential, then display meter indicates the corresponding temperature to the pyroelectic potential. It is based on that tempeature change of material results in change of its resistance. When resistance value changes, the working instrument will display relevant temperature value. IEC584 IEC751 JB/T5518 1991 JB/T5582 1991 Main Technical Parameters Executive Standard IEC584 IEC751 JB/T5518 1991 JB/T5582 1991 It is specially designed for petrochemical industry to directly measure the temperature of liquid, vapor, gas and solid surface ranging from -200 to 1600 . Nominal Pressure It generally refers to sustainable static pressure from outside on protection tube without breakage. It concerns not only material, diameter, wall thickness of protection tube, but structure and mounting way of the tube, flow speed and category of tested medium as well.

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