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SMIV系列電壓變送器（交流電壓變送器,直流電壓變送器,超低價格）型號:SMIVxxACE/DCE-Pn-On/D22，SMIVxxACE/DCE-Pn-On/F1簡介：SMIV系列是采用自主知識產(chǎn)權(quán)技術(shù)研制生產(chǎn)的電壓變送器,與全世界絕大部分型號的電壓變送器兼容，精度高，性能穩(wěn)定，價格十分低廉。SMI系列電壓變送器是一種能將被測交流電壓、直流電壓、脈沖電壓轉(zhuǎn)換成按線性比例輸出直流電壓或直流電流的儀器，廣泛應(yīng)用于電力、郵電、石油、煤炭、冶金、鐵道、市政等部門的電氣裝置、自動控制以及調(diào)度系統(tǒng)等。SMIV電壓變送器具有單路、三路組合結(jié)構(gòu)形式。

詳細介紹：南京三盟科技有限公司專業(yè)研制生產(chǎn)SMIV系列電壓變送器（交、直流，超低價格）功能：精確測量交流或者直流電壓，將被測電壓轉(zhuǎn)變?yōu)榕c輸入電壓呈線性關(guān)系的標(biāo)準(zhǔn)的直流信號。型號:SMIVxxACE/DCE-Pn-On/D22，SMIVxxACE/DCE-Pn-On/F11.輸入：各種量程（0-20KV）2.精度等級：0.1,0.2,0.53.電源（Pn）：P1:24VDC, P2:12VDC, P3:15VDC, P4:220VAC 50/60HZ, P5:85-265V AC/DC，P6:5VDC P7:其他4.輸出（On）: O1:4-20mA, O2:0-20mA, O3:1-5V, O4:0-5V, O5:0-10V, O6:0-4V, O7:用戶自定義電壓變送器的測量方式：接入測量電壓變送器的安裝：35mm導(dǎo)軌安裝（75×22.5×105）或螺孔安裝（82×58×50）電壓變送器的特點：1.國際標(biāo)準(zhǔn)電流信號輸出，直接連接PLC等，輸出電流與負載無關(guān)2.電流輸出，高過載能力，抗干擾能力強3.適合于遠距離傳輸4.的性能價格比，為用戶省去了電壓互感器5.快速響應(yīng)，無擊穿現(xiàn)象6.初級與次級高度隔離7.外形小巧，安裝方便8.競爭力的價格，節(jié)省大量成本，真正的超低價格！9.廣泛的應(yīng)用在電力、電源、石化、油田、冶金、自控等各個需要電量測控的行業(yè)選型：SMIVxxAC交流電壓變送器      SMIVxxDC直流電壓變送器      SMIV3-xxAC三組合交流電壓變送器      SMIV3-xxDC三組合直流電壓變送器

圖片:SMIV薄型變送器外型-D22

關(guān)鍵詞:電壓變送器,電壓變換器,電壓隔離放大器,電壓測量,電壓檢測 

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1Human Activin A （ACV-A）ELISA KitCatalog No. CSB-E04486h（96T） This immunoassay kit allows for the in vitro quantitative determination of humanACV-A concentrations in serum, plasma. Expiration date six months from the date of manufacture FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC PROCEDURES.2PRINCIPLE OF THE ASSAYThe microtiter plate provided in this kit has been pre-coated with anantibody specific to ACV-A. Standards or samples are then addedto the appropriate microtiter plate wells with a HorseradishPeroxidase （HRP）-conjugated antibody preparation specific forACV-A ａnd incubated. Then substrate solution A ａnd B are addedto each well. Only those wells that contain ACV-A, HRP-conjugatedantibody will exhibit a change in color. The enzyme-substratereaction is terminated by the addition of a sulphuric acid solutionand the color change is measured spectrophotometrically at awavelength of 450 nm ± 2 nm. The concentration of ACV-A in thesamples is then determined by comparing the O.D. of the samplesto the standard curve.DETECTION RANGE66.6 pg/ml-2000 pg/ml. The standard curve concentrations used forthe ELISA’s were 2000 pg/ml, 1000 pg/ml, 500 pg/ml, 166.6pg/ml,66.6pg/ml.SPECIFICITYThis assay recognizes human ACV-A. No significantcross-reactivity or interference was observed.3SENSITIVITYThe minimum detectable dose of human ACV-A is typically lessthan 16.7 pg/ml.The sensitivity of this assay, or Lower Limit of Detection （LLD） wasdefined as the lowest concentration that could be differentiatedfrom zero.MATERIALS PROVIDEDReagent QuantityAssay plate 1Standard（S1-S5） 5HRP-conjugate 1 x 6 mlWash Buffer1 x 15 ml（20×concentrate）Substrate A 1 x 7 mlSubstrate B 1 x 7 mlStop Solution 1 x 7 mlStandard S1 S2 S3 S4 S5Concentration（pg/ml）66.6 166.6 500 1000 20004STORAGE1. Unopened test kits should be stored at 2-8C upon receipt andthe microtiter plate should be kept in a sealed bag. The test kitmay be used throughout the expiration date of the kit, provided itis stored as prescribed above. Refer to the package label for theexpiration date.2. Opened test plate should be stored at 2-8C in the aluminum foilbag with desiccants to minimize exposure to damp air. The kitswill remain stable until the expiring date shown, provided it isstored as prescribed above.3. A microtiter plate reader with a bandwidth of 10 nm or less andan optical density range of 0-3 OD or greater at 450nmwavelength is acceptable for use in absorbance measurement.REAGENT PREPARATION1. Bring all reagents ａnd plate to room temperature for at least 30minutes before use. Unused wells need store at 2-8°C andavoid sunlight.2. Wash Buffer If crystals have formed in the concentrate, warmto room temperature ａnd mix gently until the crystals havecompletely dissolved. Dilute 15 ml of Wash Buffer Concentrateinto deionized or distilled water to prepare 300 ml of WashBuffer.5OTHER SUPPLIES REQUIRED Microplate reader capable of measuring absorbance at 450 nm,with the correction wavelength set at 540 nm or 570 nm. Pipettes ａnd pipette tips. Deionized or distilled water. Squirt bottle, manifold dispenser, or automated microplatewasher. An incubator which can provide stable incubation conditions upto 37°C±0.5°C.SAMPLE COLLECTION AND STORAGE Serum Use a serum separator tube （SST） ａnd allow samplesto clot for 30 minutes before centrifugation for 15 minutes at1000 g. Remove serum ａnd assay immediately or aliquot andstore samples at -20°C. Centrifuge the sample again afterthawing before the assay. Avoid repeated freeze-thaw cycles. Plasma Collect plasma using citrate, EDTA, or heparin as ananticoagulant. Centrifuge for 15 minutes at 1000 g within 30minutes of collection. Assay immediately or aliquot ａnd storesamples at -20°C. Centrifuge the sample again after thawingbefore the assay. Avoid repeated freeze-thaw cycles.Note: Grossly hemolyzed samples are not suitable for use in this assay.6ASSAY PROCEDUREBring all reagents ａnd samples to room temperature before use. It is recommendedthat all samples, standards, ａnd controls be assayed in duplicate. All the reagentsshould be added directly to the liquid level in the well. The pipette should avoidcontacting the inner wall of the well.1. Standard Reconstitute the Standards with 0.5 ml of ddH2O,respectively. Allow the standard to sit for a minimum of 15minutes with gentle agitation prior to use.2. Set a Blank well without any solution. Add 50μl of Standard orSample per well. Standard need test in duplicate.3. Add 50μl of HRP-conjugate to each well （not to Blank well）.Mix well ａnd then incubate for 1 hour at 37°C.4. Complete remove the liquid. Then fill each well with WashBuffer （about 200μl）, stay for 10 seconds ａnd Spinning. Repeatthe process for a total of three washes. Complete removal ofliquid at each step is essential to good performance. After thelast wash, remove any remaining Wash Buffer by aspirating ordecanting. Invert the plate ａnd blot it against clean papertowels.5. Add 50μl of Substrate A ａnd 50μl of Substrate B to each well,mix well. Incubate for 15 minutes at 37°C. Keeping the plateaway from drafts ａnd other temperature fluctuations in the dark.76. Add 50μl of Stop Solution to each well when the first four wellscontaining the highest concentration of standards developobvious blue color. If color change does not appear uniform,gently tap the plate to ensure thorough mixing.7. Determine the optical density of each well within 10 minutes,using a microplate reader set to 450 nm.CALCULATION OF RESULTSUsing the professional soft "Curve Exert 1.3" to make a standard curve isrecommended, which can be downloaded from our web.Average the duplicate readings for each standard, control, andsample ａnd subtract the average zero standard optical density.Create a standard curve by reducing the data using computersoftware capable of generating a four parameter logistic （4-PL）curve-fit. As an alternative, construct a standard curve by plottingthe mean absorbance for each standard on the x-axis against theconcentration on the y-axis ａnd draw a best fit curve through thepoints on the graph. The data may be linearized by plotting the logof the ACV-A concentrations versus the log of the O.D. ａnd thebest fit line can be determined by regression analysis. Thisprocedure will produce an adequate but less precise fit of the data.If samples have been diluted, the concentration read from thestandard curve must be multiplied by the dilution factor.8LIMITATIONS OF THE PROCEDURE The kit should not be used beyond the expiration date on the kitlabel. Do not mix or substitute reagents with those from other lots orsources. If samples generate values higher than the highest standard,dilute the samples with the appropriate Diluent ａnd repeat theassay. Any variation in operator, pipetting technique, washingtechnique, incubation time or temperature, ａnd kit age cancause variation in binding. This assay is designed to eliminate interference by solublereceptors, binding proteins, ａnd other factors present inbiological samples. Until all factors have been tested in theImmunoassay, the possibility of interference cannot beexcluded.TECHNICAL HINTS Centrifuge vials before opening to collect contents. When mixing or reconstituting protein solutions, always avoidfoaming.9 To avoid cross-contamination, change pipette tips betweenadditions of each standard level, between sample additions,and between reagent additions. Also, use separate reservoirsfor each reagent. When using an automated plate washer, adding a 30 secondsoak period following the addition of wash buffer, and/orrotating the plate 180 degrees between wash steps mayimprove assay precision. To ensure accurate results, proper adhesion of plate sealersduring incubation steps is necessary. Substrate Solution should remain colorless or light blue untiladded to the plate. Keep Substrate Solution protected from light.Substrate Solution should change from colorless or light blue togradations of blue. Stop Solution should be added to the plate in the same order asthe Substrate Solution. The color developed in the wells willturn from blue to yellow upon addition of the Stop Solution.Wells that are green in color indicate that the Stop Solution hasnot mixed thoroughly with the Substrate Solution.

兩聯(lián)薄膜過濾器特點: 1、玻璃過濾器為改進新型，符合中國藥典2010版無菌檢查法，封閉式過濾及開放式過濾兩種培養(yǎng)方式均可使用，并可反復(fù)使用。2、多種用途：（1）注射用中、西藥品，大輸液的無菌檢查。（2）微生物限度檢查，純化水，注射用水，口服中、西藥品，化妝品，食品，保健食品等雜菌計數(shù)，可作半固體，混懸液，固體等樣品檢查。（3）帶導(dǎo)管的一次性醫(yī)療器具（如輸液袋）。（4）臨床化驗體液中的細菌檢驗，血液制品和獸藥制品的檢驗。（5）少量試驗材料的除菌過濾。3、兩種培養(yǎng)方式（1）加培養(yǎng)基至玻璃筒內(nèi)，可作封閉式直接培養(yǎng)。（2）取出濾膜作好氧菌，厭氧菌和真菌培養(yǎng)。4、本儀器一次購買可長期使用，每次試驗一個濾頭損耗一張濾膜，其他部件均為耐用，多次使用，無廢物處理，符合環(huán)保（GLP）要求。貴重藥液可以回收，極大節(jié)約試驗費用。5、儀器體積：300mm×110mm×230mm（適合凈化臺內(nèi)操作）。6、濾器（濾頭）容積：100mL有刻度。 

    山東諸城金博威食品機械真空滾揉機采用電腦控制顯示屏，客戶可以根據(jù)自己的產(chǎn)品設(shè)定自動滾揉時間、間歇時間、再滾揉時間，到了時間自動停止，無需工人在一邊守著，大大節(jié)省了勞動力。金博威真空滾揉機整機采用304不銹鋼，齒形根據(jù)不同的肉類設(shè)計各不相同，從而保證更好的出肉率和腌制效果。

    金博威真空滾揉機是在真空狀態(tài)下，利用物理沖擊的原理 ，讓肉在滾筒內(nèi)旋轉(zhuǎn)，達到相互摩擦、輕揉、進料腌漬的作用，使肉均勻的吸收淀粉、水或者其他輔料，提高肉的保水性及產(chǎn)品的彈性；本機具有肺呼吸功能，讓產(chǎn)品在滾筒內(nèi)做膨脹，縮小的往復(fù)運動，改善了肉組織的結(jié)構(gòu)，提高了切面效果，增加了出品率?？梢栽鰪姳Ｋ?，改善產(chǎn)品的內(nèi)部結(jié)構(gòu)。     雞肉采用V型真空滾揉機的好處：腌制時間短，入料快；滾揉過程當(dāng)中不損傷雞肉形狀外觀，不產(chǎn)生肉沫。

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