Select plant protection equipment and supplier's precautions
1. Determine what standard test is used for the object to be inspected China's current testing standards (national standard GB, Ministry standard JB, line standard HB), and international standard ISO or American standard ASMI and so on. 2. Determine what method is used to detect a) Damaged (detection method of taking part or deforming the object to be inspected, high detection accuracy; slow detection speed): chemical analysis, physical test. b) Non-destructive (detection method without damage to the tested object, detection accuracy is relatively low; detection speed is fast): ray, sound wave, electromagnetic, infiltration, mirror phase. 3. Sensor selection Sensor: Converts the amount to be detected into a part that we can display, calculate or input to other machines. The accuracy of the detection depends mainly on it. 4. Detection accuracy, scope of application The maximum and minimum detection quantities of the articles to be inspected are determined in combination with 1, 2, and 3. Choose the closest sensor accuracy and range value, which is higher at a higher general price. 5. Detect the performance price ratio of the product The product features many new technologies and the price is high. (Performance/price) The results obtained are judged and the value is high. The electronic product update cycle is short, and it is not advisable to purchase a very new soft technology (soft technology: operation interface, good senses, and constant accuracy). 6. Testing product standardization The state stipulates that the metering and testing equipment used in the country must pass the standard metrological identification (yearbook). 7. Testing product service For life-testing equipment and instruments, pay great attention to the promise of repair and renewal. 8. Detect the service life of the product and the supply of wearing parts Radiation generating devices, electronic vacuum devices, mechanical wear parts, mirror natural corrosion 9. Detect the user base of the product The user is relatively stable with the product and the spare parts are easy to repair. 10. Technical training Product distributors must have higher technical strength and be able to provide more technical training to improve our use of the purchased instruments and the correct use of maintenance methods. 11. Other Product distributors should be reliable. Frozen Mussels,Frozen Cooked Clean Mussel Meat,Cooked Mussel Meat,Seafood Mussel Meat Shengsi Huali Aquatic Products Co.,Ltd , https://www.mytilus-edulis.com