The constant temperature and humidity test chamber noise is plagued by many people. In fact, the constant temperature and humidity test chamber will emit some squeaking sounds, which may not necessarily be noise. The author explains today the reasons for the common "noise" of constant temperature and humidity chambers.
First, there is a slight “beep†sound, which is caused by the thermal expansion and contraction of the inner tank and the refrigeration line when the constant temperature and humidity test chamber is working.
Second, there is a sound of “å’å’â€, which is the sound of refrigerant flowing in the refrigeration circuit when the refrigeration system is working.
Third, the buzzer sounds an alarm. The cause of the malfunction is generally caused by the temperature in the test chamber being too high. There are several cases:
1) Turn on the power after the first power on or after a long power failure;
2) Open the constant temperature and humidity test chamber door for a long time;
3) Put a large amount of products in the test chamber at one time, resulting in poor air circulation;
4) An alarm will also be generated when the constant temperature and humidity test chamber door is not closed or the user opens the door for a long time.
Treatment: Close the test chamber door; do not put too many samples at once.
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