Operation method and daily maintenance of high and low temperature test chamber

The high and low temperature test chamber is a test that simulates the natural high and low temperature changes in environment, and is widely used in testing the adaptability of electronic, electrical products and other product parts and materials during use and storage and transportation. Especially the changes in electrical properties and mechanical properties. The products are subjected to low temperature and high temperature tests. This time I will share with you the operation method and daily maintenance of high and low temperature test chambers.

1. Operation method of high and low temperature test chamber

1. Turn on the power supply of the high and low temperature test chamber, close the circuit breaker behind the electrical control cabinet, and the "stop" point on the control panel.

2. Press the "Start" button and the controller displays it. Press the "SET" key according to the "SV" value on the controller. The SV value will flash at the end. You can use the "<" key to move the cursor to the number of digits to be modified, and then use the "∧, ∨" keys to set it.

3. When set to the required test value, press the "SET" key to confirm. If the test value is lower than the room temperature value, please press the "Check" switch on the control surface, and the test can be carried out. After three minutes, the cold machine is turned on. If the test value is higher than the room temperature, the controller will automatically execute after the setting is completed. There is no need to press any switch. If the humidity is required, press the humidity switch (refer to the instructions for the Xinbainuo high and low temperature test chamber for the specific operation of the controller, but do not change the internal settings of the controller arbitrarily, otherwise it will affect the entire test)

4. When the "AL1" indicator light on the controller of the high and low temperature test chamber, the temperature in the work room has exceeded "50℃" and the refrigeration will not be turned on. Only when the PV value is lowered below 50℃ can the refrigeration switch be turned on. A light is provided on the observation window. If you need to observe the test pieces during the test, you can turn on the "illumination switch" and a test hole is provided on the left side of the box.

It can be used to provide wire-through for dynamic tests for the test piece, but when performing low-temperature tests, this hole must be sealed with insulation material (in the case of leads) to avoid large amounts of air conditioning and affecting the test. It can be not used as a reference during high-temperature tests.

2. Things to note in high and low temperature test chambers

1. This equipment is only suitable for product testing within the range of high temperature +150℃ and low temperature -40℃.

2. Testing of explosive, flammable and highly corrosive substances is prohibited.

3. When this machine works below 0℃, avoid opening the box door, otherwise frost and freeze in the evaporator and other parts in the box, reducing the efficiency of this machine.

4. During the test, do not open the box cover unless absolutely necessary, otherwise it may cause personal injury or system misoperation.

Instrument operators should carefully read and understand the maintenance of the instrument, maintain the instrument well, so that the instruments are always clean, the parts and accessories are complete and safe, and ensure the normal operation of the instruments. In summary, the above is an introduction to the operation methods and daily maintenance of high and low temperature test chambers. I hope it will be helpful to you.