Question 1: The working principle of the electronic pressure switch.
The working principle of the electronic pressure switch is: when the pressure in the system is higher or lower than the rated safety pressure, the disc in the induction electronic pressure switch instantaneously moves, and the switch joint is pushed or disconnected by connecting the guide rod, when the pressure drop When the rated recovery value is up to or rises, the disc is instantaneously reset, the switch is automatically reset, or simply when the measured pressure exceeds the rated value, the free end of the elastic element is displaced, and the switching element is directly or after being compared and pushed. The on-off state of the switching element achieves the purpose of controlling the measured pressure. The elastic components used in the electronic pressure switch include a single-turn spring tube, a diaphragm, a bellows, and a bellows. The switching elements include a magnetic switch, a mercury switch, a micro switch, and the like.
Question 2: The composition of the electronic pressure switch.
1 Sensor pressure differential pressure temperature level acquisition component
2 High-precision, high-stability, low-temperature drift amplifier circuit
3 A/D converter module
Click for details: main original of the intelligent pressure switch
Question 3: The fatal problem of the electronic pressure switch.
Anti-interference is the most important factor affecting the use of electronic pressure switches. Our company has devoted four years of research and development in this area and finally successfully overcome this problem. For details, please click: "Tianxiang" full electronic pressure switch introduction.
Question 4: Comparison of electronic pressure switches and mechanical pressure switches.
Compared with the mechanical pressure switch, the electronic pressure switch has the advantages of high precision, good repeatability, long service life, no contact, strong corrosion resistance, flexible setting, intuitive display and small temperature drift. For more details, please click on the article we have previously introduced to you: the comparison of electronic pressure switches and mechanical pressure switches.
Question 5: Comparison of electronic pressure switches with similar products.
1 The model recognition technology is used to overcome the abnormal pressure of the existing pressure switch, and the pressure switch action causes an abnormal pump.
2 The process selection switch has been added. The bypass tank process and the closed process can set different thresholds, and the threshold of the bypass tank process setting can be appropriately reduced, thereby solving the problem that the bypass tank process pressure switch cannot be used.
3 Added calibration button. When pressing “calibration button” when verifying the intelligent electronic pressure switch, the microcomputer will automatically remember the current pressure value and use this value as the “smart electronic pressure switch” setting value to achieve pressure. Inspection of the switch.
Question 6: Terms and introductions related to electronic pressure switches
I have already introduced the terminology of pressure switches. The terms of electronic pressure switches and mechanical pressure switches are similar. They are mainly pressure resistance, accuracy, full scale (FS), connection difference (dead zone), temperature, SPDT (single knife). Double throw), DPDT (double pole double throw), upper limit one contact (normally open), lower limit one contact (normally closed), upper and lower limit two contacts HL, upper limit 2 contacts, lower limit 2 contacts, IP (protection level).
