+86-17702626719        jacob@nntqd.com                                                                                                                                                  
Home / News / Pneumatic Knowledge Center / How to choose a digital pressure switch?

How to choose a digital pressure switch?

Views:0     Author:Site Editor     Publish Time: 2021-10-06      Origin:Site

How to choose a digital pressure switch?


Digital pressure switches are widely used. Today, I would like to share with you the experience in the selection of pressure switch: users should correctly select the measuring range and specifications of pressure switch according to the tested medium and environment, and grade 0.4 and 0.2 are routinely used in industrial production. Precision digital pressure switches can be used for precise pressure measurement (accuracy is generally 0.1 or 0.05). 

 

Here is the content list:

  • Selection of measuring range of pressure switch

  • Different pressure switches should be selected for measuring different media and environments.

 

Selection of measuring range of pressure switch

When measuring a more stable digital pressure switch, the maximum range should be 1.5 times of the measured value, and when measuring the fluctuation pressure, the maximum range should be 2 times of the measured value. The range of the pressure switch should be selected properly, which can prolong the service life of the pressure switch.

 

Digital Flow Switch


Digital Air Flow Switches


Different pressure switches should be selected for measuring different media and environments.

An intelligent digital pressure switch can measure water, oil, gas and other non-corrosive media to stainless steel. The intelligent digital pressure switch can be used to measure the general medium. The shell is made of stainless steel and can be installed in both axial and radial directions. For the pressure measurement of strong corrosive medium and corrosive gas environment, in addition to the isolation method, all stainless steel pressure switches can be selected, but all stainless steel pressure switches are not suitable for external corrosive media, in this case, diaphragm pressure switches can be used.

When there are remote transmission requirements, you can choose the digital remote transmission pressure switch, the general digital remote transmission pressure switch uses a four-digit display, can be on-site real-time pressure, at the same time, the pressure signal can be transmitted remotely, and the transmission distance is better than 500 meters. Built-in pressure sensor, powerful, can change the pressure unit, calibrate zero error, correct filter constant and so on. Digital remote pressure switches can be used to replace traditional pointer remote pressure switches or pressure transmitters.

 

When there is a need for good shock resistance and strong impact resistance, the digital display contact pressure switch can be selected. The digital display electric contact pressure switch is specially developed and produced to replace the mechanical electric contact pressure switch. it uses a high-precision pressure sensor as a pressure sensing element and has no mechanical spring structure, so it has good shock resistance and strong impact resistance. It is suitable for the working condition of frequent pressure shock and strong vibration.

 

When there are alarm and control requirements, you can choose a digital display pressure controller / digital pressure switch. The function of the product is powerful, the control range can be adjusted arbitrarily, and the independent alarm point is normally open and closed. Suitable for pressure vessels and automatic production lines.

 

Digital pressure switch is a new generation of pressure switch developed on the basis of the early traditional analog pointer barometer and high-precision digital sensing technology. It is used for the detection and control of air pressure in the field of pneumatic control. Guangdong NNT Pneumatic Technology Co., Ltd. also has these products, welcome to buy them. Company website: https://www.zhnnt.com/