Electronic belt scale is a common industrial production automation equipment used to measure the weight of materials during transportation, widely used in mining, power plants, steel, fertilizer and other enterprises. To ensure accurate measurement of electronic belt scales, regular calibration is required. The commonly used methods for verifying electronic belt scales include chain code verification, physical verification, and hanging code verification.
Verification method of electronic belt scale
1. Chain code verification: Chain code verification is a verification method designed for digital transmission systems of electronic belt scales. In chain code verification, the standard quality chain code block is placed in a specific position, and the frequency and degree of change of mechanical components that break under the action of gravity are measured using sensors loaded on electronic belt scales or attached to the front end of weighing instruments to verify whether there are errors in the data transmission process.
2. Physical verification: Physical verification is a method of verifying the accuracy of electronic belt scales based on the actual mass of the object. In physical verification, standard mass objects are placed on an electronic belt scale for testing, and their actual mass is compared with the weight displayed on the electronic belt scale to evaluate the measurement accuracy of the electronic belt scale.
3. Hanging code verification: Hanging code verification is a verification method based on known quality. In the hanging code verification, a known quality waterproof bag is hung on an electronic belt scale, and the reading of the electronic belt scale is recorded. Finally, the actual quality is compared with the reading of the electronic belt scale to evaluate the measurement accuracy of the electronic belt scale.
Factors affecting the calibration accuracy of electronic belt scales
In the process of using an electronic belt scale, it is necessary to calibrate it and ensure the accuracy of the calibration. It is necessary to understand which factors affect its calibration accuracy. The factors that affect the calibration accuracy of electronic belt scales mainly include:
1. Environmental temperature: Excessive or insufficient environmental temperature may cause a deviation in the sensitivity and accuracy of the electronic belt scale sensor.
2. Accuracy of belt scale collection system: The accuracy deviation of the belt scale collection system will directly affect the accuracy of the calibration results.
3. Error of electronic belt scale sensor: Due to the high frequency of use of belt scale sensors, their anti-interference and accuracy performance may decrease. Therefore, it is necessary to regularly detect and adjust the sensors inside the scale body.
4. Accuracy of scale body installation: If the installation is not in place, such as loose brackets or offset bases, it can cause measurement errors in electronic belt scales.
The above is an introduction to the calibration methods of electronic belt scales and the main factors that affect the calibration of belt scales. Ensuring the normal calibration of electronic belt scales can ensure production quality and reduce safety accidents during the production process.
