Metal Casting Heater
1. The working voltage shall not exceed 10% of the rated value; the relative humidity of the air shall not exceed 95%, and there shall be no explosive or corrosive gases.
2. The wiring part should be placed outside the heating layer and insulation layer, and the shell should be effectively grounded; avoid contact with corrosive, explosive media, and moisture; the lead wires should be able to withstand the temperature of the wiring part and the heating load for a long time, and avoid excessive force when tightening the wiring screws.
3. The metal casting heater should be stored in a dry place. If the insulation resistance is lower than 1MΩ due to long-term storage, it can be restored by baking in an oven at about 200 degrees Celsius for 5-6 hours. Alternatively, reduce the voltage and energize for heating until the insulation resistance is restored.
4. The metal casting heater should be properly positioned and fixed, and the effective heating area must be in close contact with the heated body. Dry burning is strictly prohibited. If dust or contaminants are found on the surface, they should be cleaned promptly before reuse to avoid affecting
