What parameters should be confirmed when selecting a weighing sensor?

　　Load CellWhen selecting a model, the first step is to confirm the size, range, material, usage environment, style, and other aspects of the sensor. Based on these factors, the model and brand of the weighing sensor should be determined. Next, we will introduce several key parameters and related precautions.

1、 Weighing sensor range size

The weighing sensor should determine the range size based on the maximum measurement value required for the scale body, the number of sensors used for the scale body, the self weight, tare weight, eccentric load, vibration impact, and load of the scale body. The closer the range of the weighing sensor is to the required weight, the higher the accuracy of the measured results. However, the range should not be too close, as it is important to consider the possibility of instantaneous overload, which may lead to damage to the weighing sensor.
　

2、 Material and usage environment of weighing sensors

Select the corresponding material of the weighing sensor based on its environment. The materials of the weighing sensor include alloy steel, aluminum alloy, stainless steel, and so on.

The advantage of alloy steel material lies in its good texture and low price, but its disadvantage is poor corrosion resistance, easy rusting, and inability to be used in humid and corrosive gas environments for a long time; The characteristics of aluminum alloy are lightweight, easy to operate, high accuracy, and small range weighing sensors tend to use aluminum alloy materials; Stainless steel material has most of the characteristics of alloy steel material, and has better corrosion resistance and moisture resistance, making it suitable for use in more complex environments, but at a higher price.

In addition, special explosion-proof sensors must be selected for flammable and explosive environments.

3、 Style of load cell

According to their structure, load cells are divided into S-type load cells, single point load cells, cantilever beam load cells, corrugated pipe load cells, column load cells, bridge load cells, spoke load cells, box load cells, and so on.

1. Single point weighing sensors are low range and high-precision weighing sensors with low cost, widely used in electronic scales, kitchen scales, jewelry scales, and other fields;

2. The column type weighing sensor has a large range and is widely used in the heavy industry field. Suitable for large platform scales, truck scales, track scales, etc

3. The S-type weighing sensor is mainly used for weighing feed and ingredients, with the advantages of convenient installation, stability, and reliability. It is generally used in mixing plants.

4. The bridge type weighing sensor is more complex than the S-type, mainly due to the lack of structural design. The bridge type is a double shear structure design, mainly suitable for electronic weighing equipment such as car scales, canned scales, axle scale overhead scales, etc.

5. The cantilever beam type weighing sensor is mainly used in monorail suspension scales, with a cantilever shear structure, which has the advantages of convenient use and high accuracy.

6. Box type weighing sensor, as the name suggests, is shaped like a small cardboard box and made of aluminum alloy. It can withstand high pressure and can be used to manufacture hook scales.

7. The spoke type weighing sensor adopts a fully sealed welding method, which provides good protection against water, oil, and even harmful gases. It can be used as a standard sensor and is suitable for various environments.

8. Bellows sensors are widely used in process weighing fields such as packaging scales and belt scales. High level of protection, suitable for harsh working environments.