Armored thermal resistance is an instrument for measuring temperature. It has the advantages of express thermal response time, small dynamic error, small diameter, and unlimited length. It is suitable for installation in harsh environments. good armored thermal resistance Installation and use can not only effectively avoid the occurrence of measurement errors, but also reduce the impact of the life of the armored thermal resistor. Armored thermal resistance, can also automatically detect gas, liquid medium and solid surface in the temperature range of -200 ~ 500 ℃, and can be directly connected with copper wires and secondary instruments, because it has good electrical output characteristics , Can provide accurate input values for display, recorder, regulator, scanner, data logger and computer. I. Installation precautions of armored thermal resistance: The thermal resistance should be avoided by the furnace or too close to the heating body. It should be installed as far as possible without vibration or small vibration, and at the same time, it should be convenient for construction and maintenance. The installation position should be as vertical as possible, but it must be installed at an angle when there is a flow rate. The outlet of the terminal box should face downward. 2, the use of armored thermal resistance matters needing attention: The thermal resistance should be wired in accordance with regulations, generally using a three-wire system. The connecting wire should be insulated (preferably open) copper wire, its cross-sectional area should be ≥1.0 mm2, and the resistance of the wire should be registered according to the regulations of the display instrument. Thermal inertia causes armored RTD change to lag temperature change. In order to eliminate the error caused by it, the outer diameter of the thermal resistance protection tube should be reduced as much as possible, and the insertion depth of the thermal resistance should be appropriately increased to increase the heating resistance. The condition of the protective tube should be checked frequently, and measures should be taken immediately if oxidation or deformation is found, and periodic inspection should be performed. The above are the precautions for the installation and use of armored thermal resistors. We can make some references based on these contents and properly learn some knowledge about thermal resistors to make the correct selection, which will help extend the life of the transmitter.
Thermocouple sales 2
Thermocouple sales 1