What are the precautions and handling methods for high and low temperature test chambers?

1.High temperature burns: During high temperature tests, the temperature inside the box and the exhaust copper pipe of the freezer is high. Be careful of burns when opening the box door or operating.

2.Low temperature frostbite: During low temperature tests, the temperature inside the box is low. Be careful of frostbite when opening the box door.

3.Electric shock: Even if there are anti-electric shock measures, do not touch the electrical parts during work.

4.Installation: The power supply uses a three-phase five-wire system. Pay attention to the distinction between the neutral line. The extension cable must meet the power supply requirements; the equipment generates a lot of heat and needs to be installed in a well-ventilated place, away from flammable materials, explosives, strong magnetic fields and strong vibration environments.

5.Use: Do not connect the test power supply to the equipment power supply (when there is no interface). It is strictly forbidden to test flammable, explosive and other items. Do not carry or repair when powered on or running.

6.Measurement items: The measurement characteristics include temperature and humidity deviation, fluctuation, and uniformity. The measurement is carried out under no-load. The selection and number of measurement points depend on the volume of the equipment.

7.Treatment method: Test product performance by specifying temperature and humidity environment. The temperature system is divided into humidification and dehumidification subsystems. Humidification mostly adopts steam humidification; dehumidification has mechanical refrigeration and dry dehumidification. The former is commonly used, and the latter is expensive. Heating depends on the heating device, and cooling is completed by the refrigeration system. Relative humidity is related to temperature, and temperature data must be provided to provide relative humidity; humidification relies on heating water into steam, and dehumidification relies on the refrigeration system.

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