Electronic weighbridge - why preheat it in advance every time it is used
Electronic weighbridge - why preheat it in advance every time it is used Shanghai Jiujin Weighing Apparatus Factory - Electronic weighbridge - why preheat it in advance every time it is used The "preheating" of the electronic platform is to ensure that the entire system can enter a normal, non-disordered state of operation, so that all components in the system circuit (including the floor scale sensor, of course) and the cable reach a temperature balance. Electronic circuits that do not reach the balance of temperature, especially the components of electronic scale indicators, signal and data processing, transmission will be biased. Therefore, for electronic scale scale products, it is necessary to carry out preheating for a certain period of time after starting up. As for the preheating time, it is necessary for the production enterprises to select the component technology according to their respective product structure characteristics. The indicator and the ambient temperature used were determined. Before using the electronic weighbridge, we recommend that the user preheat it for 20 minutes before using it, as this will ensure that the user will achieve the precise level of Zui every time during the weighing process, because the use environment of the weighbridge is complicated and the ambient temperature is too high. A series of problems such as large dust and disturbing radiation will affect the weighing accuracy of the electronic scale. In order to ensure better weighing of the electronic weighbridge, it is good to warm up for 30 minutes before using the electronic weighbridge. It can be seen that the pre-heating of the electronic platform before use is not so much, and even the driving needs to be warmed up, not to mention the precision of the electronic platform, but also to maintain the accuracy and stability of the electronic platform with reasonable use. Sex. Shanghai Jiujin Weighing Apparatus Factory———— Gelatin Size 3 Empty Capsule,Mixed Green Empty Capsules,Size 3 Empty Gel Capsule,Medical Clear Empty Hard Gelatin Capsules Ningbo Jiangnan Capsule Co., Ltd. , https://www.ningbocapsule.com
In the international proposal of R76-1 “Non-automatic Weighing Instrument†issued by the International Organization of Legal Metrology (OIML), the technical requirements of 5.3.5 “the electronic weighing instrument shall have no weighing indication during the preheating time and shall not transmit the weighing result. ". However, in the test procedure of A.5.2, “the instrument that uses the power supply shall be decoupled. At least the power supply shall be disconnected for 8 hours before the test. Then the power supply of the instrument shall be turned on, and the instrument shall be zero immediately after the indication value is not disordered, and the zero error shall be determined. The load is loaded with a load close to the Zui scale, and the error calculation is performed according to A.4.4.3. These tests should be repeated at the following 5 min, 15 min and 30 min. The respective measurements should be taken at 5, 15 and 30 min. Zero error correction"