How to correctly install the electric furnace / muffle furnace
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2. A thermocouple is inserted into the furnace 20-50mm, and the gap between the hole and the thermocouple is filled with asbestos rope. Connect the thermocouple to the control Zui to use the compensation wire (or use insulated steel core wire), pay attention to the positive and negative poles, do not reverse.
3. An additional power switch is required at the power line lead to control the main power supply. In order to ensure safe operation, the box resistance furnace and the controller must be reliably grounded.
4. Before use, adjust the thermometer indicator to zero point. When using the compensation wire and cold end compensator, adjust the mechanical zero point to the reference temperature point of the cold end compensator. When the compensation wire is not used, the mechanical zero point is used. Adjusted to zero scale, but the temperature indicated is the temperature difference between the measurement point and the cold junction of the thermocouple.
5. After checking the wiring and confirming it is correct, cover the controller casing. Adjust the temperature indicator's setting pointer to the desired operating temperature and then turn on the power. Turn on the power switch. At this time, the green light on the meter indicates that the green light is on, the relay starts to work, the box resistance furnace is energized, and the current meter displays current. As the internal temperature of the box-type resistance furnace increases, the temperature indicator meter pointer also rises gradually. This phenomenon indicates that the system is working normally. The temperature rise and constant temperature of the box type resistance furnace are respectively indicated by the traffic light of the temperature indicator, the green light indicates the temperature rise, and the red light indicates the constant temperature.