1. Components are allowed to operate at the following conditions: A, air relative humidity is not more than 95%, no explosive and corrosive gases. B. The operating voltage should not be more than 1.1 times that of the rated value, the outer casing should be effectively grounded. C, insulation resistance ≥ 1 MΩ dielectric strength: 2kV / 1min.
2. The electric heating tube should be positioned well, and the effective fever area must be impiltrated into the liquid or metal solid, which is strictly prohibited. When the surface of the tubular body is scalp or junction, it should be used in time to clean and reuse, so as not to reduce the service life.
3. Heat the elongated metal or solid nitro salt, alkali, bitumen, and stone, etc., should reduce the use of voltage, after melting, to be reached to the rated voltage.
4. When heating the air, the components should be aligned evenly, so that the components have good heat dissipation conditions, so that the flowing air can be fully heated.
5. When heated nitrogen, safety measures should be considered, prevent the explosion accident.
6. The wiring portions should be placed outside the insulation layer, avoid contact with corrosive, explosive media, and moisture; the pilot line should be able to withstand the temperature of the wiring portion and the heating load, and the wiring screw should be avoided.
7. The component should be stored in a dry place. If the insulating resistance is less than 1mΩ due to the long-term placement of the insulating resistance, it can be dried in an oven at 200 ° C, or the voltage is electrically hot until the insulating resistance is restored.
8. The magnesium oxide powder of the electric heating tube is used to avoid the occurrence of pollutants and moisture in use, prevent leakage accidents.