If you want to make the high and low temperature test chambers better serve you, you must learn how to use high and low temperature test chambers. The compressor is one of the important components of high and low temperature test chambers. Today Let me explain to you how to judge whether the test box is healthy by listening to the sound.
In the front, the sound of "beep" or "beep, slap" sounding during the use of the high and low temperature test chamber is normal. These sounds are the normal sound of the refrigerant circulating in the cooling pipe of the high and low temperature test chamber, and will not affect the cooling effect. Conversely, there may be a blockage failure in the refrigeration system.
Second, it is normal for the high and low temperature test chamber to hear a "squeaky" sound when starting or stopping. This is the sound of the heavy-duty relay, the contact of the thermal protector that is disconnected or closed, and sometimes accompanied by vibration.
Third, the high and low temperature test chambers sometimes emit a continuous humming sound from a U-shaped exhaust pipe connected to the compressor. The function of the exhaust pipe is to deliver the high temperature and high pressure gaseous refrigerant discharged from the compressor to the condenser. In the manufacture of the exhaust pipe, the thermal expansion and contraction effect is taken into consideration, and it is usually made into a U shape. When the compressor is running, the U-shaped exhaust pipe will resonate, which is the cause of the humming sound. This sound does not affect the normal operation of the high and low temperature test chamber. The way to eliminate this sound is as simple as wrapping a rope or piece of tape around the U-tube so that it does not vibrate.
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