The oven is a device that uses an electric heating wire to heat the object.It is suitable for baking, drying, heat treatment, etc. in the range of 5~300 °C (some 200 °C higher) than room temperature, and the sensitivity is usually ±1 °C.There are many models of the oven, but the basic structure is similar. It is generally composed of a box, an electric heating system and an automatic temperature control system.Its use and precautions are summarized as follows:
1. The oven should be placed indoors in a dry and level place to prevent vibration and corrosion.
2. Pay attention to safe use of electricity, install a power supply knife of sufficient capacity according to the power consumption of the oven.Use enough power leads and have a good grounding wire.
3. The oven with the electric contact mercury thermometer type thermostat should connect the two wires of the electric contact thermometer to the two terminals on the top of the box.In addition, an ordinary mercury thermometer is inserted into the exhaust valve. (The thermometer in the exhaust valve is used to check the electrical contact mercury thermometer and observe the actual temperature inside the box.) Open the exhaust valve hole.Adjust the electric contact mercury thermometer to the required temperature and tighten the screws on the steel cap to achieve the purpose of constant temperature.However, care must be taken not to turn the indicator iron out of the scale when adjusting.