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                                                                                                                        首頁 > 技術文章 > 密度天平在使用時應遵守哪些事項?
                                                                                                                        密度天平在使用時應遵守哪些事項?
                                                                                                                        發布日期:2022-06-15      瀏覽次數:585
                                                                                                                        密度天平是用來測量物體密度的天平秤,能讓密度直接顯示在顯示屏,節省人工換算的時間,也能避免換算過程中失誤造成誤差。密度天平的使用方法并不難,將天平開機,預熱,安裝好后,根據被測物體性質選擇液體或固體模式,然后按置零鍵測量即可。

                                                                                                                        密度天平的使用注意事項:

                                                                                                                        1. 使用天平前,應將天平放在固定、平穩的天平桌上,調節好水平。天平室的溫濕度必須達到天平要求的溫濕度范圍,定期校準,以保證測量的準確性。

                                                                                                                        2. 所稱量物品不要超過天平的*大稱量范圍。含有靜電的物品請勿直接放置在秤盤上。所稱量物品須冷卻至室溫才可稱量,否則可能因為溫度不同導致稱量結果產生較大誤差。

                                                                                                                        4. 待稱物品必須放置于天平秤盤的中央位置,放置偏差可能會導致測量不準。

                                                                                                                        5. 將待測固體放入密度天平的燒杯中時,要確保燒杯中的參考液體能夠將固體*浸沒1cm以上。

                                                                                                                        6. 使用密度天平稱重、測量密度時,記得要關閉天平的防風罩。并等待天平顯示屏讀數穩定后再讀數。

                                                                                                                        7. 若天平因靜電問題產生讀數不準、飄數等現象,可嘗試用柔軟的濕布擦拭天平,消除靜電影響,如有靜電清潔液效果更好。

                                                                                                                        8. 測量完畢要及時將密度天平的燒杯、吊籃、秤盤等配件清潔干凈,保持天平干凈、干燥,特別要注意不要讓液體流入天平內部,以免損壞內部電子元器件。

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