1. After unpacking, check whether the muffle furnace is intact and the accessories are complete. The general muffle furnace does not require special installation, and only needs to be placed flat on the indoor flat floor or shelf. The controller should avoid vibration, and the location should not be too close to the electric furnace to prevent internal components from not working properly due to overheating.

2. A thermocouple is inserted into the furnace with 20-50mm, and the gap between the hole and the thermocouple is filled with asbestos rope. It is better to use compensation wire (or insulated steel core wire) to connect the thermocouple to the control. Pay attention to the positive and negative poles and do not connect them in reverse.

3. An additional power switch needs to be installed at the lead-in of the power cord to control the main power supply. In order to ensure safe operation, the electric furnace and the controller must be reliably grounded.

4. Before use, adjust the thermometer indicator to the zero point. When using the compensation wire and cold junction compensator, adjust the mechanical zero point to the reference temperature point of the cold junction compensator. When the compensation wire is not used, the mechanical zero point Adjust to the zero scale position, but the indicated temperature is the temperature difference between the measuring point and the cold junction of the thermocouple.

5. After checking the wiring and confirming that it is correct, cover the controller shell. Adjust the setting pointer of the temperature indicator to the required operating temperature, and then turn on the power. Turn on the power switch. At this time, the green light on the temperature indicating instrument is on, the relay starts to work, the electric furnace is energized, and the current meter is displayed. As the internal temperature of the electric furnace rises, the pointer of the temperature indicating instrument also gradually rises. This phenomenon indicates that the system is working normally. The heating and constant temperature of the electric furnace are respectively indicated by the traffic lights of the temperature indicator, the green light indicates the temperature rise, and the red light indicates the constant temperature.