What is the maximum pressure of the pressure switch? What is the dead zone of the pressure switch? What is the operating temperature of the pressure switch? In the daily sales process often encounter customers will have a variety of pressure switch on the terms of the question, then today Xiaobian for everyone to answer the meaning of these terms.

Pressure switch related terms and introduction

What is a single pole double throw (pressure switch): a normally open, normally closed contact and a common end.

What is a (double - pole double throw) pressure switch: by a symmetrical left and right common end, two sets of normally open, normally closed terminal.

Pressure switch pressure: pressure switch to maintain its normal performance can withstand the maximum pressure. However, when the pressure switch is used for overvoltage, the sensitive element will produce continuous deformation, then the pressure setting value will change, the pressure switch will not be able to play its normal performance and may even be damaged.

The accuracy of the pressure switch: the value of the accuracy of the device, including linearity, tolerance, hysteresis, repeatability, etc..

Pressure switch Man Liangcheng (F.S): the maximum and minimum pressure difference.

The difference of the pressure switch (dead zone): refers to the difference between the pressure switch setting action value and reset value, for example, when the setting, the value of 2MPa, the actual reset value of 0.9MPa, the difference is 1.1MPa.

The working temperature of the pressure switch: refers to the temperature range of the internal mechanism of the instrument, the sensitive element and so on. General pressure switch recommended operating temperature range of -5~400C, if the medium temperature is too high, you can consider adding a siphon (filling), to achieve the purpose of cooling.

The upper limit of the pressure switch contact (Chang Kai): when the pressure rises to the set value, the contact action.

A lower pressure switch contact (Chang Bi): Alexander down to the set value, the contact action, circuit conduction.

The upper and lower limit of the pressure switch two contact HL: the upper and lower limits of the combination, divided into two independent action (double set, double loop) and the simultaneous action of the two contacts (single set, double loop) of the two types.

The upper limit of the pressure switch 2 contacts: the merger of the upper limit of the two forms, divided into two independent action (double set, double loop) and the simultaneous action of the two contacts (single, double loop) of the two types.

The lower limit of the pressure switch 2 contacts: the merger of the lower limit of the two forms, divided into two independent action (double set, double loop) and the simultaneous action of the two contacts (single set, double loop) of the two types.

Pressure switch IP (protection level): is drafted by the International Electrotechnical Association (IEC), the standard for dust and moisture characteristics of lamps and lanterns