Petrochemical Industry-purpose Thermocouple (Thermal Resistance)

Http://www.ahdqjt.com     Time: 10/22/10 09:23

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.