Installation and Use of Muffle Furnace

Installation and Use of Muffle Furnace

1. After opening the package, check whether the muffle furnace is intact and whether the accessories are complete. General muffle furnace does not need special installation, just lay flat on the floor or shelf indoors. The controller should avoid vibration and should not be placed too close to the electric furnace to prevent the internal components from not working properly due to overheating.

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

3. An additional power switch needs to be installed at the introduction of the power cord in order 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 the cold junction compensator, the mechanical zero point should be adjusted to the reference temperature point of the cold junction compensator. When the compensation wire is not used, the mechanical zero point Set to zero scale, but the temperature indicated 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 desired operating temperature, and then turn on the power. Turn on the power switch, at this time the green light on the temperature indicator is on, the relay starts to work, the electric furnace is energized, and the ammeter displays the current. As the internal temperature of the electric furnace increases, the pointer of the temperature indicating instrument also gradually rises, which 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.

Learn more:

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