Steel ribbon metal detector is suitable for mining, cement, glass, chemical industry, coal mining, wood, paper material processing, power plant, building materials and other industries. It can carry out on-line monitoring, such as removing metal impurities in cotton, coal and food, and is not easy to be interfered by power supply, space radio, temperature and humidity. Steel ribbon metal detector in use need to operate in accordance with the correct method, the following small series to introduce three common mistakes!
Error 1: over reliance on metal detectors
Misunderstanding analysis:The metal detector is designed according to the principle that the induction of metal in the magnetic field causes the change of magnetic field signal, which is used to detect metal foreign bodies in products. Compared with other foreign body detection technologies in products, it has the advantages of generality, easy operation and no special protection, but it can only be used for metal foreign body detection and the detection sensitivity is affected by many factors. The metal detector has a certain limit on the specification of the detected metal. At the same time, in the process of use, its sensitivity will be affected by the external vibration, temperature, moisture and salt content of the product, or the temperature of the product itself, individual size, composition and other factors.
Error 2: moving metal detectors frequently
Misunderstanding analysis:In some food enterprises, because of the purchase cost of metal detector, inspectors often use the same metal detector in different production lines, and frequently move the metal detector to achieve the purpose of detection. These phenomena easily make the metal needle detector subject to external vibration in the process of moving. In addition, because it is placed in different places, the use conditions may change These will affect the stability of metal detector.
Error 3: the time interval of metal detector operation status confirmation is random
Misunderstanding analysis:In the process of using, some enterprises do not specify the interval between the two confirmations when using standard test piece to confirm the detection ability of metal detector. The common problem is that the detection is too frequent, or too sparse, and even there are frequent tests only when abnormal conditions are found, few tests or even no tests when no abnormal conditions are found. All of these are not conducive to the good operation of metal detector, but also lead to the increase of the cost of rectifying deviation when the product is missed or mistakenly detected.
The above are three mistakes in the use of steel ribbon metal detector. You should pay special attention to avoid winning the bidding. When purchasing, you can communicate with the manufacturer about the mixed metal substances in the raw materials, so as to select the appropriate model!