How to use photoelectric liquid level switch in refrigerant recovery?

- Jun 20, 2020-

Air conditioners are the most common appliances in our lives. Every household has one, especially in summer. We all know that the air conditioner can not be separated from Freon when it is cooling or heating, and the Freon of the air conditioner is the refrigerant. Below we will briefly introduce how the sensor is applied to refrigerant recovery.


Refrigerant is a substance that transfers heat through evaporation and condensation in an air conditioning system. Refrigerants include gas refrigerants, liquid and solid refrigerants。


In daily life, the refrigerants commonly used in air conditioners are water and air, so how does the air conditioner refrigerant cool? The air-conditioning refrigerant enters the recovery system through the sight glass, and becomes liquid after entering the cylinder through the compressor and condenser. The pressure sensor on the electronic scale transmits the weight conversion data of the steel cylinder to the main board of the electronic scale, and the chip calculates and displays the amount of refrigerant recovery on the liquid crystal panel. After the steel cylinder is recovered to 80%, the liquid level switch output a signal, the valve is closed, and the recovery is terminated.


However, in the refrigerant recovery, the pressure of the compressor is too high or the refrigerant will be excessive, which will cause the compressor to pull the cylinder and get stuck. In order to solve this problem, we recommend FS-IR1903D. FS-IR1903D can detect most liquids and can operate under high pressure and strong corrosive environment. Because they use a stainless steel shell and the PSU probe. If you want to know more, please consult our staff.

Air conditioners are the most common appliances in our lives. Every household has one, especially in summer. We all know that the air conditioner can not be separated from Freon when it is cooling or heating, and the Freon of the air conditioner is the refrigerant. Below we will briefly introduce how the sensor is applied to refrigerant recovery.


Refrigerant is a substance that transfers heat through evaporation and condensation in an air conditioning system. Refrigerants include gas refrigerants, liquid and solid refrigerants.


In daily life, the refrigerants commonly used in air conditioners are water and air, so how does the air conditioner refrigerant cool? The air-conditioning refrigerant enters the recovery system through the sight glass, and becomes liquid after entering the cylinder through the compressor and condenser. The pressure sensor on the electronic scale transmits the weight conversion data of the steel cylinder to the main board of the electronic scale, and the chip calculates and displays the amount of refrigerant recovery on the liquid crystal panel. After the steel cylinder is recovered to 80%, the liquid level switch output a signal, the valve is closed, and the recovery is terminated.

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However, in the refrigerant recovery, the pressure of the compressor is too high or the refrigerant will be excessive, which will cause the compressor to pull the cylinder and get stuck. In order to solve this problem, we recommend FS-IR1903D. FS-IR1903D can detect most liquids and can operate under high pressure and strong corrosive environment. Because they use a stainless steel shell and the PSU probe. If you want to know more, please consult our staff.