Matters needing attention when using a constant temperature drying oven

A constant temperature drying oven uses heating elements to dry objects. While there are many models available, their basic structure is similar. They generally consist of a chamber, an electric heating system, and an automatic temperature control system. Here are some precautions for use:

1. The constant temperature drying oven should be placed indoors in a dry, level area to prevent vibration and corrosion.

2. Ensure safe use of electricity. Install a power switch of sufficient capacity based on the oven's power consumption. Ensure adequate power supply wiring and a good grounding connection.

3. Place the test sample in the oven only after all preparations are complete. Connect and turn on the power. A red indicator light will illuminate, indicating heating. When the controlled temperature is reached, the red light will turn off and the green light will illuminate, signaling the start of temperature control. Monitoring is essential to prevent temperature control failure.

4. Ensure that test samples are not placed too closely together. Avoid placing test samples on the heat sink to prevent the upward flow of hot air. Flammable, explosive, volatile, or corrosive items are not permitted in a constant temperature drying oven.

5. For trolley ovens with a constant-temperature drying oven equipped with an electric contact mercury thermometer, connect the two leads of the electric contact thermometer to the two terminals on the top of the oven.

6. Insert a standard mercury thermometer into the exhaust valve. (The thermometer in the exhaust valve is used to calibrate the electric contact mercury thermometer and observe the actual temperature inside the oven.) Open the exhaust valve.

7. Adjust the electric contact mercury thermometer to the desired temperature and tighten the screws on the steel cap to achieve a constant temperature. However, be careful not to rotate the indicator iron beyond the scale during adjustment.