What is the high pressure of a pressure switch? What is the dead zone of a pressure switch? What is the working temperature of a pressure switch? In the daily sales process, Chuanyun often encounters customers with various doubts about the terminology of pressure switches. Today, the editor will answer the meanings of these terms for everyone.
Terminology and Introduction of Pressure Switches
What is a (single pole double throw) pressure switch: consisting of a normally open, normally closed contact, and a common terminal.
What is a (double pole, double throw) pressure switch: It consists of a symmetrical left and right common terminal, and two sets of normally open and normally closed terminals.
Pressure switch withstand voltage: The maximum pressure that a pressure switch can withstand while maintaining its normal performance. However, when the pressure switch is used in overvoltage situations, the sensitive components will undergo continuous deformation, and the pressure setting value will change. The pressure switch will not be able to perform normally and may even be damaged.
Precision of pressure switch: a value that represents the precision of the equipment, including linearity, tolerance, hysteresis, repeatability, etc.
Full range (F.S) of pressure switch: the difference between the pressure range * large value and * small value.
The connection and disconnection difference (dead zone) of a pressure switch refers to the difference between the set action value and the reset value of the pressure switch. For example, when the set value is 2MPa and the actual reset value is 0.9MPa, the connection and disconnection difference is 1.1MPa.
The working temperature of a pressure switch refers to the temperature range within which the internal mechanisms and sensitive components of the instrument will not undergo continuous deformation during operation. The recommended working temperature range for general pressure switches is -5~400C. If the medium temperature is too high, it is possible to consider adding an accessory siphon (filling) to achieve the purpose of cooling.
The upper limit contact of the pressure switch (normally open): When the pressure rises to the set value, the contact acts and the circuit conducts.
The lower limit contact of the pressure switch (normally closed): When the Yali drops to the set value, the contact acts and the circuit conducts.
The upper and lower limit two contact HL of the pressure switch is a combination of upper and lower limit types, divided into two types: independent action of two contacts (dual setting, dual circuit) and simultaneous action of two contacts (single setting, dual circuit).
The upper limit 2 contacts of the pressure switch: It combines two upper limit forms and is divided into two types: independent action of two contacts (dual setting, dual circuit) and simultaneous action of two contacts (single setting, dual circuit).
Lower limit 2 contacts of pressure switch: Combining two lower limit forms, it is divided into two types: independent action of two contacts (dual setting, dual circuit) and simultaneous action of two contacts (single setting, dual circuit).
The IP (protection level) of pressure switches is a standard drafted by the International Electrotechnical Association (IEC) regarding the dust and moisture resistance characteristics of lamps.
These are the basic terms about pressure switches. If customers still have any unclear knowledge about pressure switches, they can call Chuanyun Technology for consultation. Our engineers will answer your questions carefully!
