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Mechanical Balance balance drift causes and solutions


n Meng Jian-blood with the guilt (Quality and Technical Supervision,[link widoczny dla zalogowanych], Gongyi City, Henan Gongyi 451200) Abstract: The mechanical adjustment of the balance because of their environmental impact caused by improper and outside the equilibrium shift and give a solution. Key words i balance; equilibrium; drift; reason; solution in practical work, the use of TG328A (S) Mechanical Balance weighing sample, the balance often encounter a differential scale to move slowly. After a few pointers to fully tilt the balance until the projection screen is no longer scale. This phenomenon is called \Encountered this phenomenon can not be normal for weighing. Should be noted that the balance \The above mentioned \According JJG99-06 \variability as an indication indexing. So what caused the balance of \An improper adjustment of the balance itself (1) the level of balance is not a solution: adjust the corner screws, to observe the bubble center. (2) sensitivity is too high Solution: Open the balance, adjust the \requirements. (3) the balance Mito ordered food line solution: test weight scale space scales and sub-degree scales, if the food line and beyond JJG99-06 (non-automatic Verification Regulation of the balance \(4) Balance damper, the jacket gap inconsistent, there was a slight brush or a part of the phenomenon by a tiny fiber block, fiber is often difficult to detect small, fast close to equilibrium only when a similar drift, but eventually was able to stop drift . Solution: Adjust the damper inside and outside the space around the same smear with deerskin inside and outside the damper out the small fibers. 2 of the external environment (1) cover the balance placed just off the silica gel drying, the moisture absorption of the sample was weighed . Solution: silica gel to cool before releasing the balance of the hood or ten minutes after the silicone release further weighing. (2) is called a water sample or samples of heat radiation. Solution: Use a suitable container to be sealed said. (3) the balance of unilateral heat, sun exposure and the furnace, oven, etc. located near Balance. Solution: put up curtains, remove the heating equipment. These are the actual work, I encountered some problems and lessons little experience, inadequate, please give correct me. Author: Meng Gao Jian, male, assistant engineer. Work: Gongyi City of Quality and Technical Supervision. Mailing Address: Renmin Road, Gongyi City, Henan 451200 15. Received :2007-04 -28 (Continued from page 46) and adhesives national health standards and product standards, disable benzene solvent, water-soluble or alcohol-soluble product development, improve the safety of food packaging materials. (4) directly as food packaging materials with food contact with hazardous substances in packaging material will be moved to the food, the secondary pollution caused by food. So health standards in food may consider increasing the number of people from the food packaging materials with the limits for harmful ingredients to help improve food security. (5) suggested that the food provided to consumers on the packaging, according to \food, but also concerned about the quality of food packaging materials, to buy those products of good quality and high reputation of the company's products, that the poor quality products in the market conditions in the phase-out war, the food packaging material along the safety, health, environmental protection direction,[link widoczny dla zalogowanych], and sustainable manner. Author: Zhang Ping, female,[link widoczny dla zalogowanych], engineer. Work: Zhuhai,[link widoczny dla zalogowanych], measuring the quality of supervision and inspection by the city. Address: 519000 West Renmin Road,[link widoczny dla zalogowanych], Zhuhai City, Guangdong Province, 133. Received Time: 2007 - 05-15

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