1. Diverse heating capabilities: The laboratory universal electric furnace can provide a wide range of heating from low to high temperatures, meeting the heating requirements of various experiments.
2. Precise temperature control: Equipped with an advanced temperature control system and PID control, it can precisely control and maintain the temperature required for experiments, ensuring the accuracy and repeatability of experiments.
3. Structural design: The outer shell is usually formed by cold-rolled sheet metal stamping and welding, and undergoes electrostatic spraying treatment, which has corrosion resistance and durability. The upper cover of the electric furnace is made of cast iron, enhancing the stability and safety of the structure.
4. Types of temperature sensing probes: Closed electric furnaces are usually equipped with K-type thermocouples as temperature sensing probes, which can adapt to high-temperature environments, quickly and accurately capture temperature information, and convert temperature changes into electrical signals.
5. Easy installation and maintenance: The temperature sensing probes usually have a simple installation method, can be conveniently installed in various equipment or environments, and are easy to maintain and replace.
6. Ventilation holes: The electric furnace has multiple ventilation holes, which are conducive to ventilation and heat dissipation.

Working Environment Conditions:
1. The ambient temperature should be controlled within the range of 2 to 40°C. The relative humidity should not exceed 85% to prevent the dampness from affecting the performance of electrical components.
2. It should be utilized on a dry and stable workbench to avoid any accidents caused by equipment vibration or movement.
3. There should be no intense vibration or corrosive gases in the surrounding area to prevent damage to the electric furnace and interference with the experimental results.
4. Flammable items are prohibited from being piled up around the electric furnace. A certain safety distance must be maintained to avoid fire incidents.
5. The laboratory should be equipped with adequate ventilation and exhaust facilities, as well as exhaust pipes for experimental waste gas, to maintain the freshness and cleanliness of the air in the laboratory.

Notes:
1. Equipment Inspection: Before each usage, carefully inspect the appearance and internal components of the electric furnace to ensure that the equipment is in a good working state.
2. Avoid Contamination: Do not allow grease or any chemical substances to drip into the inner liner. If such an incident occurs unfortunately, immediately turn off the electric furnace and clean the inner liner.
3. Safety Protection: During the operation process, safety protection equipment such as laboratory gloves should be worn to prevent burns caused by the excessive heat of the furnace body.
4. Maintenance and Upkeep: Regularly clean the interior of the electric furnace to guarantee the heating effect and extend the service life of the furnace body.
5. Avoid Overload Operation: Do not exceed the rated load of the high-temperature electric furnace to prevent the equipment from overloading.
6. Temperature Sensing Probe Precautions: When using a stainless steel probe, the liquid must not be highly acidic or alkaline. When using a polytetrafluoroethylene probe, it can be directly placed in liquids such as sulfuric acid and nitric acid for temperature control.