環保水泥細度負壓篩析儀試驗步驟

1篩析試驗，調節數顯式時間繼電器，使其設定在120s，再把負壓篩放在篩座上，蓋上篩蓋，打開電源，調節負壓至-4000~-6000pa范圍內，然后關機。
2稱取試樣25g，置于潔凈的負壓篩中，蓋上篩蓋，再次啟動儀器，連續篩析，在此期間如有試樣附著在篩蓋上，可輕敲篩蓋使試樣落下，當篩析滿120s后，儀器自動停止。
3篩畢，用天平秤重篩余物。

試驗結果計算
水泥試樣篩余百分數按下式計算：
F=式中：F－水泥試樣篩余百分數（%）
      ms—水泥篩余物的質量（g）
      m—水泥試樣的質量（g）
      計算結果精確到0.1％

注意事項
1定期倒掉集塵瓶中的水泥。
2如果使用段時間后負壓達不到標要求（-4000～-6000pa）時，請清潔吸塵器中的收塵袋。
3吸塵器連續工作不應超過15分鐘，否則易過熱燒壞。

本產保留進步修改權利。恕不另行通知。

 獻縣鵬遠建筑儀器廠是目前國內生產：公路試驗儀器、建筑試驗儀器的重點骨干企業。在國內具有較高的知名度，本公司設備一流，檢測手段完善，技術力量雄厚。產品嚴格按照國家標準設計生產，除配套供應試驗儀器設備外，我廠還承擔新建試驗室的規劃設計，設備選型，安裝調試，配件供應與后勤保障等業務。

PENGYuan building instrument factory is a key enterprise which produces highway test instrument ａnd building test instrument in China. In the country has a high visibility, the company＇s first-class equipment, perfect means of testing, strong technical force. In addition to supporting the supply of test equipment, the factory also undertakes the planning ａnd design of the new laboratory, equipment selection, installation ａnd commissioning, spare parts supply ａnd logistics support business.

 本公司主要產品有：

混凝土實驗儀器、水泥試驗儀器、養護箱、養護室、瀝青試驗儀器、乳化瀝青試驗儀器、防水卷材試驗儀器、土工試驗儀器、土壤試驗儀器、細集料試驗儀器、砌墻磚試驗儀器、CA砂漿試驗儀器、鋼筋連接套筒等等。重點推出：混凝土壓力機、混凝土攪拌機、鋼筋拉拔儀、錨桿拉拔儀、水泥細度負壓篩、鉆孔取芯機、混凝土抗滲儀、水泥膠砂攪拌機、水泥凈漿攪拌機，電動跳桌、瀝青針入度、瀝青軟化點、瀝青低溫延伸儀、瀝青粘度計、馬歇爾穩定度儀、馬歇爾擊實儀、電動擊實儀、工程試模等等這些產品廣泛應用于：混凝土商砼、攪拌站、實驗室、高等院校、市政、公路、鐵路、隧道、橋梁、石油化工、水利建設、等領域本廠以合理的價格、熱情的服務態度、精湛熟練的售后保障對您提供優質服務。我們本著交貨迅速、實行三包、跟蹤服務等經營原則竭誠為廣大用戶服務。

The company＇s main products are:

concrete test equipment, cement test equipment, maintenance box, maintenance room, asphalt test equipment, emulsified asphalt test equipment, waterproof coil test equipment, soil test equipment, soil test equipment, fine aggregate test equipment, brick wall test equipment, CA mortar test equipment, steel connection sleeve ａnd so on. Key products: Concrete Press, ready-mix concrete, steel bar puller, anchor Rod Puller, cement fineness negative pressure screen, core drilling machine, concrete impermeability machine, cement mortar mixer, cement paste mixer, electric Jump Table, asphalt penetration, asphalt softening point, asphalt low temperature， Marshall Stability Instrument, Marshall compaction instrument, electric compaction instrument, engineering test model, etc. . These products are widely used in: concrete business, mixing stations, laboratories, institutions of higher learning, municipal, roads, railways, tunnels, bridges, petrochemical, water conservancy construction, ａnd other fields of our factory to provide you with reasonable prices, warm service attitude, skilled after-sales service to provide quality services. We in line with the prompt delivery, the implementation of three guarantees, tracking service ａnd other business principles dedicated to the majority of users.

我公司把顧客放在第一位，建立起了產品售前、售中、售后服務規范，全方位、全過程滿足顧客要求，使我們的產品和服務深得顧客的信賴，與顧客建立起了長期合作和互利關系。

Our company puts the customer first, has established the product pre-sale, the sale, the after-sale service standard, the omni-directional, the entire process satisfies the customer request, causes our product ａnd the service deep customer＇s trust, established A long-term cooperation ａnd mutually beneficial relationship with customers.

公司秉承“視售后服務為產品質量的延伸，視產品質量為企業生命”的宗旨，在網絡化的售后服務管理體系的保障下，為用戶提供最優質的產品和服務。我公司一如既往在“和諧、誠信、專業、增值”價值觀引領下成為公路儀器和建筑儀器一流的供應商。
 The company adheres to the Tenet of "Regard after-sales service as the extension of product quality, regard product quality as the life of the enterprise" , ａnd under the protection of the network The Adjuster management system, provide the best quality products ａnd services for users. As always, our company has become the first-class supplier of highway instrument ａnd Construction Instrument under the guidance of "harmony, integrity, professionalism ａnd value-added" values.

我們熱忱期盼與各位業內人士攜手并進、共創未來!

We look forward to working together with the industry to create a better future!