Each component of a force sensor will affect the technical performance of the sensor. Some force sensors only use simple fixing methods to avoid the movement of sensor wires and damage to the electronic circuit fixing of the sensor. Some force sensors with short transmission distances even rely solely on adhesive sealing for fixing.
The prerequisite for replacing a force sensor is that the axis of the applied force coincides with the axis of the sensor. We should know that as the rated load increases, the microvolt/division signal output by the sensor decreases. This is often overlooked, thinking that there is a proportional relationship between the two, but in reality it is not. When replacing a sensor, the load should be as similar as possible to the original sensor. If you want to replace it with a sensor with a larger load, you need to see if the weighing instrument of the electronic scale can be adjusted. If it cannot be adjusted, then do not replace it and still use the original load, because the microvolt/division signal output of the sensor with a larger load becomes smaller, and it cannot achieve the purpose of full range output, display, and dial adjustment. Therefore, it cannot be used. If it can be adjusted, then the problem is not significant.

Is the length of the connecting rod after reinstalling the sensor consistent with the original length, and we also need to ensure that the transmission lever is horizontal and the connecting rod is perpendicular to the transmission lever at a 90 degree angle. If there is a deviation, it will affect the accuracy and sensitivity of the scale. If the length of the connecting rod is too long, there will be a phenomenon of "weighing up". Can it be too long or too short? There will be a phenomenon of 'weighing too small'. At the same time, it should be noted that the connecting rod must be in a free hanging state and cannot rub against other objects to avoid affecting the sensitivity of the scale. In the debugging of the electromechanical combination scale after replacing the sensor, it should be carried out according to the weighing display instrument manual based on the accurate debugging of the mechanical scale. Whether it is an electronic scale or an electromechanical combination scale, after replacing the sensor, it must be verified and qualified before use.

Usually, it is desirable to have a higher sensitivity of the pressure sensor within its linear range. Because only when the sensitivity is high, the value of the output signal corresponding to the measured change is relatively large, which is beneficial for signal processing. However, it should be noted that the sensitivity of the sensor and external noise unrelated to the measurement can easily mix in, and it can also be amplified by the amplification system, thereby affecting the measurement accuracy.

The selection skills for PH miniature pressure sensors are what we all need to possess:
1. For measuring electricity in high-purity water to meet the pH measurement application with a solution conductivity of ≤ 2 μ S/cm, it is necessary to emphasize the matching flow channel and needle valve to control the solution flow rate at 100-200ml/min to achieve stable measurement. This is because the thin conductive ions in pure water have become poor conductors and are prone to potential drift.
2. Pure water and general water are used for measuring electricity, meeting the requirements of pH measurement applications with conductivity ≥ 2 μ S/cm, such as tap water, cooling water, process water, circulating water, etc., which have high conductivity values and are less prone to complex chemical pollution.
3. Sewage measurement of electricity meets the measurement requirements for environmentally friendly polluted water and complex chemical polluted water. Due to the easy contamination of electricity, it is emphasized to regularly maintain it. Refer to the fifth energy-saving cleaning.
4. High temperature electricity for fermentation is applied in biotechnology to meet the requirements of enclosed, anti pollution, and frequent high-temperature disinfection environments. A special set of equipment is required, and the service life of the electricity determines the frequency of high-temperature disinfection.
Weighing sensors are mainly used in electronic scales, industrial control, online control, safety overload alarm, material testing machines, and other fields. Such as electronic car scales, electronic platform scales, electronic forklifts, dynamic axle scales, electronic hook scales, electronic pricing scales, electronic steel scales, electronic track scales, hopper scales, ingredient scales, canning scales, etc.