該品牌擁有數(shù)千多種不同種類的產(chǎn)品,廣泛應用于航空航天、鐵路、礦山、冶金、機床、紡織、鞋業(yè)、塑膠、煙草、電梯、石油化工、印刷、包裝、食品、建筑、電力等各種
結構原理 | | | | | | |
液位開關主要由浮球、導桿、干簧管開關和接線盒等組成。根據(jù)測量介質的不同,接液材質有不銹鋼、PP、PTFE等。隨著液位上下變化,導桿外的浮球沿導桿上下移動,當接近干簧管開關時,通過磁性耦合,浮球內的磁鋼吸合導桿內的液位生產(chǎn)廠家干簧管開關,發(fā)出開關通斷信號。常開簧片開關處于磁場中時接通,處于磁場外時呈斷開狀態(tài)。常閉簧片開關處于磁場中時斷開,處于磁場外時呈接通狀態(tài)。兩種簧片開關工作狀態(tài)如下圖所示: |
主要技術參數(shù) |
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★ 工作溫度: -30~120℃ ★ 環(huán)境溫度:-40~70℃ ★ 工作壓力:-0.1~2.5MPa ★ 介質密度:≥0.5g/cm3 ★ 輸出信號:SPST或SPDT干簧觸點 ★ 觸點容量:220VAC1A;24VDC0.5A ★ 開關壽命:5×104次 ★ 電氣接口:M20×1.5內螺紋 ★ 防爆等級: 隔爆型ExdⅡBT1~T6 本安型ExdⅡCT1~T6 ★ 防護等級:IP65 ★ 過程連接:HG20592~20635-97DN50以上,其他法蘭標準(如GB、JB/T、HGJ、ANSI、DIN等) 請用戶在訂貨時注明 ★ 接液材質:不銹鋼;PP;PTFE ★ 接線盒材質:鋁合金 |
光控開關|光控定時開關|路燈節(jié)能控制器1.型號:SMKD2-1/2-A/B-XX-TW/FnP2.功能:光控開關、光控定時開關-智能控制,全自動運行,定時在1~24小時任選;采用啟動保護設計,能延長燈具使用壽命;具有節(jié)能、抗干擾、防雨等功能,可安裝于室外。布線少,投資省,安裝方便。3.負載能力:50W,100W,200W,500W,1KW,2KW,4KW..500KW4.電壓:AC 220V 380V等5.用途:室內、室外照明自動節(jié)能控制開關,路燈控制節(jié)能,主要用于廠區(qū),教室,樓道、道路、公園、廣告燈箱等照明自動光控定時開關。6.特點:SMKD2系列路燈節(jié)能自動控制器,產(chǎn)品技術獨特,能實現(xiàn)光控和時間控制的智能化組合,全自動運行,不需要人工干預,避免了因為四個季節(jié)的時間差造成的控制誤差,國際領先。安裝使用十分方便,光感靈敏度可調,規(guī)格型號齊全。
smkd2.jpg關鍵詞:光控開關,光控定時開關,路燈節(jié)能控制器
小鼠巨噬細胞替代激活相關化學因子1(AmAC-1)ELISA檢測試劑盒價格原裝進口 實驗周期:收到樣本后,7-10個工作日內出結果
收費標準:凡是購買我們試劑盒的客戶,可享受檢測費全免服務
實驗報告:圖像曲線、實驗步驟、儀器型號、所有試劑及相關數(shù)據(jù)等
注意事項:(1)外地用戶寄標本時需注明以下情況:標本編號;所測項目;是否做復孔;實驗后標本是否寄回;聯(lián)系方式等。
(2)北京本地用戶,我們工作人員可直接上門取樣。
歡迎來電咨詢:010-56286393 15311986590 在線QQ:2694024752
小鼠巨噬細胞替代激活相關化學因子1(AmAC-1)ELISA檢測試劑盒價格原裝進口 北京東方華贊提供ELISA實驗代測服務,可檢測樣本包括:血清、血漿、尿液、胸腹水、腦脊液、細胞培養(yǎng)上清、組織勻漿等,收到樣本后,七個工作日內出結果。
小鼠巨噬細胞替代激活相關化學因子1(AmAC-1)ELISA檢測試劑盒價格原裝進口 小鼠主要組織相容性復合體Ⅱ類 試劑盒廠家 小鼠主要組織相容性復合體Ⅱ類(MHC-Ⅱ/H-2Ⅱelisa試劑盒 小鼠主要組織相容性復合體Ⅲ類 試劑盒廠家 小鼠主要組織相容性復合體Ⅲ類(MHC-Ⅲ/H-2Ⅲ)ELISA試劑盒小鼠丙二醛 試劑盒廠家 小鼠丙二醛(MDA)ELISA試劑盒小鼠乳腺癌標志物-CA153ELISA試劑盒 小鼠乳腺癌標志物-CA153ELISA試劑盒小鼠黑色素細胞抗體 試劑盒廠家 小鼠黑色素細胞抗體(MC Ab)ELISA試劑盒小鼠褪黑素 試劑盒廠家 小鼠褪黑素(MT)ELISA試劑盒
1Mouse Factor-related Apoptosis(FAS)ELISA KitCatalog No. CSB-E04543m(96 T) This immunoassay kit allows for the in vitro quantitative determination of mouseFAS concentrations in serum, plasma, cell culture supernates andtissue homogenates. 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 withan antibody specific to FAS. Standards or samples are thenadded to the appropriate microtiter plate wells with abiotin-conjugated antibody preparation specific for FAS andAvidin conjugated to Horseradish Peroxidase (HRP) is added toeach microplate well and incubated. Then a TMB (3,3',5,5'tetramethyl-benzidine) substrate solution is added to each well.Only those wells that contain FAS, biotin-conjugated antibodyand enzyme-conjugated Avidin will exhibit a change in color. Theenzyme-substrate reaction is terminated by the addition of asulphuric acid solution and the color change is measuredspectrophotometrically at a wavelength of 450 nm ± 2 nm. Theconcentration of FAS in the samples is then determined bycomparing the O.D. of the samples to the standard curve.DETECTION RANGE0.625 ng/ml-40 ng/ml. The standard curve concentrations usedfor the ELISA’s were 40 ng/ml, 20 ng/ml, 10 ng/ml, 5 ng/ml, 2.5ng/ml, 1.25 ng/ml, 0.625 ng/ml.3SPECIFICITYThis assay recognizes mouse FAS. No significantcross-reactivity or interference was observed.SENSITIVITYThe minimum detectable dose of mouse FAS is typically lessthan 0.156 ng/ml.The sensitivity of this assay, or Lower Limit of Detection (LLD)was defined as the lowest protein concentration that could bedifferentiated from zero.MATERIALS PROVIDEDReagent QuantityAssay plate 1Standard 2Sample Diluent 1 x 20 mlBiotin-antibody Diluent 1 x 10 mlHRP-avidin Diluent 1 x 10 mlBiotin-antibody 1 x 120μlHRP-avidin 1 x 120μlWash Buffer1 x 20 ml(25×concentrate)TMB Substrate 1 x 10 mlStop Solution 1 x 10 ml4STORAGE1. Unopened test kits should be stored at 2-8C upon receiptand the microtiter plate should be kept in a sealed bag. Thetest kit may be used throughout the expiration date of the kit,provided it is stored as prescribed above. Refer to thepackage label for the expiration date.2. Opened test plate should be stored at 2-8C in the aluminumfoil bag with desiccants to minimize exposure to damp air. Thekits will remain stable until the expiring date shown, provided itis stored as prescribed above.3. A microtiter plate reader with a bandwidth of 10 nm or lessand an optical density range of 0-3 OD or greater at 450nmwavelength is acceptable for use in absorbancemeasurement.REAGENT PREPARATIONBring all reagents to room temperature before use.1. Wash Buffer If crystals have formed in the concentrate,warm up to room temperature and mix gently until thecrystals have completely dissolved. Dilute 20 ml of WashBuffer Concentrate into deionized or distilled water to prepare500 ml of Wash Buffer.52. Standard Centrifuge the standard vial at 6000-10000rpmfor 30s. Reconstitute the Standard with 1.0 ml of SampleDiluent. This reconstitution produces a stock solution of 40ng/ml. Allow the standard to sit for a minimum of 15 minuteswith gentle agitation prior to making serial dilutions. Theundiluted standard serves as the high standard (40 ng/ml).The Sample Diluent serves as the zero standard (0 ng/ml).Prepare fresh for each assay. Use within 4 hours and discardafter use.3. Biotin-antibody Centrifuge the vial before opening. Diluteto the working concentration using Biotin-antibodyDiluent(1:100), respectively.4. HRP-avidin Centrifuge the vial before opening. Dilute to theworking concentration using HRP-avidin Diluent(1:100),respectively.Precaution: The Stop Solution provided with this kit is an acid solution. Weareye, hand, face, and clothing protection when using this material.OTHER SUPPLIES REQUIRED Microplate reader capable of measuring absorbance at 450nm, with the correction wavelength set at 540 nm or 570 nm. Pipettes and pipette tips.6 Deionized or distilled water. Squirt bottle, manifold dispenser, or automated microplatewasher. An incubator which can provide stable incubation conditionsup to 37°C±0.5°C.SAMPLE COLLECTION AND STORAGE Serum Use a serum separator tube (SST) and allowsamples to clot for 30 minutes before centrifugation for 15minutes at 1000 g. Remove serum and assay immediately oraliquot and store samples at -20°C. Centrifuge the sampleagain after thawing before the assay. Avoid repeatedfreeze-thaw cycles. Plasma Collect plasma using citrate, EDTA, or heparin asan anticoagulant. Centrifuge for 15 minutes at 1000 g within30 minutes of collection. Assay immediately or aliquot andstore samples at -20°C. Centrifuge the sample again afterthawing before the assay. Avoid repeated freeze-thaw cycles. Cell Culture Supernates Remove particulates bycentrifugation for 15 minutes at 1000 x g, 2 - 8°C and assayimmediately or aliquot and store samples at -20° C or -80℃.Avoid repeated freeze-thaw cycles.7 Tissue Homogenates 100mg tissue was rinsed with 1XPBS, homogenized in 1 mL of 1X PBS and stored overnightat -20° C. After two freeze-thaw cycles were performed tobreak the cell membranes, the homogenates werecentrifuged for 5 minutes at 5000 x g, 2 - 8°C. The supernatewas assayed and removed immediately. Alternatively, aliquotand store samples at -20°C or -80℃. Centrifuge the sampleagain after thawing before the assay. Avoid repeatedfreeze-thaw cycles.Note: Grossly hemolyzed samples are not suitable for use in this assay.ASSAY PROCEDUREBring all reagents and samples to room temperature before use. It isrecommended that all samples, standards, and controls be assayed in duplicate.All the reagents should be added directly to the liquid level in the well. Thepipette should avoid contacting the inner wall of the well.1. Add 100μl of Standard, Blank, or Sample per well. Cover withthe adhesive strip. Incubate for 2 hours at 37°C.2. Remove the liquid of each well, don’t wash.3. Add 100μl of Biotin-antibody working solution to each well.Incubate for 1 hour at 37°C. Biotin-antibody workingsolution may appear cloudy. Warm up to room temperatureand mix gently until solution appears uniform.84. Aspirate each well and wash, repeating the process threetimes for a total of three washes. Wash: Fill each well withWash Buffer (200μl) and let it stand for 2 minutes, thenremove the liquid by flicking the plate over a sink. Theremaining drops are removed by patting the plate on a papertowel. Complete removal of liquid at each step is essential togood performance.5. Add 100μl of HRP-avidin working solution to each well.Cover the microtiter plate with a new adhesive strip. Incubatefor 1 hour at 37°C.6. Repeat the aspiration and wash five times as step 4.7. Add 90μl of TMB Substrate to each well. Incubate for 10-30minutes at 37°C. Keeping the plate away from drafts andother temperature fluctuations in the dark.8. Add 50μl of Stop Solution to each well when the first fourwells containing the highest concentration of standardsdevelop obvious blue color. If color change does not appearuniform, gently tap the plate to ensure thorough mixing.9. Determine the optical density of each well within 30 minutes,using a microplate reader set to 450 nm.9CALCULATION 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 againstthe concentration on the y-axis and draw a best fit curve throughthe points on the graph. The data may be linearized by plottingthe log of the FAS concentrations versus the log of the O.D. andthe best fit line can be determined by regression analysis. Thisprocedure will produce an adequate but less precise fit of thedata. If samples have been diluted, the concentration read fromthe standard curve must be multiplied by the dilution factor.LIMITATIONS OF THE PROCEDURE The kit should not be used beyond the expiration date on thekit label. Do not mix or substitute reagents with those from other lots orsources.10 It is important that the Standard Diluent selected for thestandard curve be consistent with the samples beingassayed. If samples generate values higher than the highest standard,dilute the samples with the appropriate Standard Diluent andrepeat the assay. Any variation in Standard Diluent, operator, pipettingtechnique, washing technique, incubation time ortemperature, and kit age can cause 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. 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.11 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 fromlight. Substrate Solution should change from colorless or lightblue to gradations of blue. Stop Solution should be added to the plate in the same orderas the Substrate Solution. The color developed in the wellswill turn from blue to yellow upon addition of the Stop Solution.Wells that are green in color indicate that the Stop Solutionhas not mixed thoroughly with the Substrate Solution.
產(chǎn)品別稱:有載分接開關測試儀、變壓器有載分接開關測試儀、變壓器有載開關測試儀,變壓器有載調壓開關測試儀
電力變壓器有載調壓開關測試儀,是用于測量和分析電力系統(tǒng)中電力變壓器及特種變壓器有載分接開關電氣性能指標的綜合測量儀器。它采用計算機控制,通過特殊設計的測量電路,可實現(xiàn)對有載分接開關的過渡時間、過渡波形、過渡電阻、三相同期性、等參數(shù)的測量,用戶可根據(jù)需要和現(xiàn)場條件,直接由分接開關引線進行測量,也可由變壓器三相套管及中性點直接接線測量。
該儀器具有對所測數(shù)據(jù)進行分析、存貯、打印等功能。解決了目前電力變壓器有載分接開關測量方法落后,沒有專用測試手段的問題,可在電力設備預防性試驗及變壓器大修中及時診斷出有載分接開關的潛在故障,對提高電力系統(tǒng)運行的可靠性具有重要意義。
功能及特點 :
1. 光線示波器功能。儀器分三通道,可同時記錄A,B,C三相過渡過程中所有過度及跳變的過程,包括可看出跳變點的時間值。不受天氣引響,功能遠比光線示波器優(yōu)越。
2. 較強的綜合測量能力。在一臺儀器內可實現(xiàn)對有載分接開關各種參數(shù)的測量。如開關選擇、切換全過程中有無開斷點、過渡波形、過渡時間、過渡電阻、三相同期性等。
3. 較全面的測量結果分析。用戶可通過大屏幕液晶顯示屏,配合各功能按鍵,分析波形中每點、每段的電阻值和每段的時間,各時間段的時間以及三相不同期等,通過屏幕分析,可了解切換過程中,每個瞬間三相開關各種參數(shù)的變化情況,也可將波形打印、存貯及查閱歷史波形進行分析和對比。
4. 打印輸出。儀器配有一臺面板式前換紙型打印機,可直接作為開關的測試報告存檔。
5. 菜單驅動,操作靈活。所有操作功能及提示和測量結果,都顯示在一個240×128點的大屏幕液晶屏上。用戶只要根據(jù)提示按動功能鍵即可進行測量。
6. 具有良好的抗干擾性能。全鋁合金機箱和儀器內配有電源噪音濾波器及抗干擾電路,可在電源質量較差, 且有強電磁場干擾的現(xiàn)場進行可靠測量。
7. 數(shù)據(jù)保持。使用者所測量的數(shù)據(jù)及波形,可保存在儀器內,所存貯的內容不會因斷電而丟失。
技術指標:
1. 三路獨立測試電源,最大輸出電流0.5A;
2. 儀器設置采樣率10~20kHZ;
3. 單次波形最大存儲時間6.4秒。
4. 過渡電阻測量范圍:Y/0型變壓器1-40W,Y型變壓器1-20W。
5. 測量精度:1-5W,Δ=±10%.5-40W,Δ=±5%
6. 時間及同期性誤差:Δ≤±1%。
7. 顯示器:240´128T、T6963C控制器;
8. 打印機:MP-40-8面板式前換紙型打印機;
9. 處理部分:
80C320高速8位微處理器。程序存儲器32K;
掉電保持數(shù)據(jù)存儲器512K字節(jié);
高速A/D轉換器,最高采樣率可達400kHz;
10.電源 220V ±10% 功率200W。
11.尺寸 410mm-320mm-200mm。
12.重量 20kg
RJ518050旋轉關節(jié)產(chǎn)品特征:
Specifications | |||
Interface Type | 2.92 Female ( 50 ohms ) | Style | I Type |
Frequency Range | DC to 40 GHz | Phase WOW (Degrees Max.) | 1° |
VSWR, Max. | 1.30 @ DC to 10 GHz | Insertion Loss, ,Max. | 0.25 dB @ DC to 10 GHz |
1.45 @ 10 to 20 GHz | 0.40 dB @ 10 to 20 GHz | ||
1.60 @ 20 to 30 GHz | 0.55 dB @ 20 to 30 GHz | ||
1.75 @ 30 to 40 GHz | 0.70 dB @ 30 to 40 GHz | ||
VSWR WOW | 0.1 | Insertion Loss WOW | 0.02 dB |
Peak Power, Max. | 500 W | Average Power, Max. | 60 W @ 1 GHz |
Rotating Speed, Max. | 250 rpm | Life Time, Min. | 5 Million Revolutions |
Starting Torque | 3.5 Ncm. | Continuous Rotational Torque | 3.5 Ncm Max. |
Axial Load On Interface, Max | ± 1 N | Radial Load On Interface, Max. | ± 1 N |
Body Material | Stainless Steel | Contact Pin Material | Beryllium Copper |
DC Power Ability | 3 A * 24V @ Full RF Power | Contact Surface Finish | Gold Plate |
Weight | 0.014 kg | Marking | Adhesive Label |
Insulator Material | PTFE / Teflon | IP Protection Level | IP 64 Per EN 60529 |
Temperature(Ambient Range) | -40 to +60 °C (Operation) | Humidity | 85% (Operation) |
-50 to +70 °C (Storage) | (Non-Condensing), Max. | 95% (Storage) |
【QDS1-□S系列自動開關】專業(yè)生產(chǎn)QDS1-□S系列自動開關現(xiàn)貨批發(fā)QDS1-□S系列自動開關我公司主要生產(chǎn)以下產(chǎn)品: 1、電機車系列:1.5T架線式電機車、3T架線式電機車、6T架線式電機車、7T架線式電機車、10T架線式電機車、14T架線式電機車、20T架線式電機車、30T架線式電機車; 2、電瓶車系列:2.5T蓄電池電機車、5T蓄電池電機車、8T蓄電池電機車、12T蓄電池電機車、15T蓄電池電機車; 3、電機車配套產(chǎn)品:電機車防爆電源箱系列、電機車鉛酸蓄電池系列、礦用隔爆型可控硅充電機、牽引整流電源柜、不防爆充電機、電機車直流牽引電動機系列、電機車司機控制器系列、電機車插銷連接器系列、電機車電阻器系列、電機車轉子、電機車輪對/車輪/輪芯、電機車照明燈系列、電機車自動開關、電機車齒輪、電機車聯(lián)軸器、電機車受電器、電機車板彈簧、電機車集電弓、電機車架線材料等各種配件。
濟寧市卓信機械設備有限公司(原濟寧市卓信工礦機械廠)是生產(chǎn)工礦電機車及配套設備、備件的專業(yè)廠家,是中國電器工業(yè)協(xié)會會員單位,山東省質量信用A級單位,國家礦用安全標志MA KA認證單位,主要生產(chǎn)CJY1.5、CTY2.5、CJY3、CTY5、CJY6、CJY7、CTY8、CJY10、CTY12、CJY14、CTY18、CJY20噸電機車及其配套的牽引用硅整流設備、充電設備、直流電機、司機控制器、啟動電阻器、自動開關受電器以及配套的電機車機械配件。是一家專業(yè)從事液壓設備、礦山鑿巖設備、建筑設備及礦山施工設備的綜合性公司,產(chǎn)品一上市就得到廣大用戶的支持和青睞,是眾多煤礦供貨商首選,現(xiàn)產(chǎn)品已銷往全國各地及東南亞,為讓用戶降低成本費用,把這些質優(yōu)價廉的產(chǎn)品提供給廣大用戶。公司產(chǎn)品廣泛應用于煤炭,石油,冶金,電力,化工,機械等行業(yè),并以優(yōu)良的產(chǎn)品質量,熱情的售后服務,合理的銷售價格,贏得用戶的信賴和贊譽。公司秉承“為客戶提供便利服務,為員工創(chuàng)造發(fā)展機會”的經(jīng)營理念及“進取不懈,成功盡享”的企業(yè)精神。熱忱歡迎國內外各界新老朋友前來洽談貿易,共創(chuàng)大業(yè),共鑄輝煌。祝大家身體健康,萬事如意,財源廣進。我們將把握時代脈搏,不斷創(chuàng)新、與時俱進。我們竭誠歡迎國內外客戶來公司洽談業(yè)務! 濟寧市卓信工礦設備有限公司秉承山東人的豪爽與實誠,誠邀各位專家、領導來我公司考察、指導、賜教并期盼與您真誠合作,“追求卓越”永遠是我們的主題,我們將勵精圖治,再創(chuàng)高效,力爭以先進的技術,優(yōu)良的產(chǎn)品質量,為煤礦企業(yè)提供多方位的服務。 我廠以先進的管理理念,科學系統(tǒng)的管理方法,靈活的經(jīng)營機制,持續(xù)不斷的技術創(chuàng)新,努力發(fā)揮行業(yè)優(yōu)勢,與社會各界同仁一起攜手合作,竭誠為廣大客戶提供全方位的優(yōu)質服務
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