江蘇美國LECO分析儀

美國力可LECO氧氮氫分析儀公司介紹：美國力可公司(LECO)始于1936年，以生產用于冶金、機械、能源、化工、農業(yè)、食品及科研開發(fā)領域的各種分析儀器。ONH836氧氣/氮氣/氫氣元素分析儀設計用于使用惰性氣體熔融技術對無機材料，鐵和非鐵合金以及耐火材料中的氧，氮和氫含量進行寬范圍的測量。堅固的樣品加載區(qū)域可簡化日常維護并大程度減少大氣污染用于氧氣檢測的三重紅外電池可實現(xiàn)業(yè)內大的檢測范圍通過自動化選項提高實驗室生產率可用的自動清潔器大程度地減少了兩次分析之間的手動清潔需求適用于坩堝和樣品的20位往復式裝載機安裝在動臂上的觸摸屏界面可提供更好的人體工程學設計和直觀的操作紅外（IR）和熱導率（TC）檢測器，沒有活動部件，也無需手動調節(jié)改善TC電池的穩(wěn)定性可繞過的OMI-2載氣洗滌塔，提高了TC電池的穩(wěn)定性獲得Dyanamic流量補償可進一步增強TC細胞的穩(wěn)定性配置SmartLine? Remote遠程診斷功能。江蘇美國LECO分析儀

SamplePreparationSamplingandsamplepreparationisanimportantissuebecausetraditionalmethodsusedtoobtainsamplesforoxygenandnitrogendeterminationaredifferentfromthoserecommendedforhydrogen,especiallywhensamplingmoltenmetal.Themaindifferenceinsteelsamplingproceduresforoxygen/nitrogenandhydrogenisduetothemobilityofhydrogen.Specialprecautionsmustbeusedwhensamplingforhydrogen.Frommoltensteelandiron,asamplemustbequicklyquenchedincoldwaterandchilledinarefrigerantsuchasliquefiednitrogenoramixtureofacetoneandsolidcarbondioxideinordertoreducelossesofhydrogenfromdiffusion.Lossesofoxygenandnitrogenfromdiffusionarenotaproblem.Asamplethatistakenforhydrogenandchilledinarefrigerantcanalsobeusedforoxygenandnitrogendetermination.However,asamplethatistypicallytakenforoxygenand/ornitrogendeterminationisnotsuitableforhydrogendeterminationduetohydrogenloss(diffusion).Surfacecontaminationmustberemovedbyfilingorlightgrinding,usingcarenottooverheatthesample.江蘇進口分析儀供應商力可***儀器采用觸摸屏技術和在線軟件平臺，增強了儀器的可操作性、降低了分析成本、節(jié)省實驗室桌面空間。

氧氮氫分析儀的常見故障及解決方法儀器啟動時顯示。沒有水流。系統(tǒng)分析電流切斷，分析停止。這是水流探測器不正常，水泵不工作，管道堵塞。將儀器的右面板取下，觀察水流探測器，用手擠壓補水塑料水瓶，發(fā)現(xiàn)水流正常，顯示正常，證明水流探測器正常，管道暢通。啟動循環(huán)水泵，但分析儀顯示沒有水流，此時可判定水泵不正常。打開水泵轉子密封口，啟動泵發(fā)現(xiàn)電機正常運轉，此時關閉進水，拆下水泵，發(fā)現(xiàn)葉輪脫落。經了解，判定是由于外部冷卻水停水，儀器內循環(huán)水溫過高（水溫應≤70℃），致使葉輪（葉輪材料PVC）熱脹并脫軸。用粘合劑粘合葉輪后再粘于葉輪軸上，待粘合劑凝固后試車，儀器運行正常。

MethodSelectionTwomethodsaredescribedinthisapplicationnote;eithermethodcanbeusedtoanalyzeiron,steel,nickel-,andcobalt-basealloys.ThePrecisionMethodisrecommendedforgeneraluseandwillprovidethebestprecisionandaccuracythroughoutthetypicalO,N,andHconcentrationsfoundinthisgroupofmetals;approximatecycletimeis3.5minutes.TheFastTrackmethodcanbeusedwherespeedofanalysisisacriticalcomponent;forexample,whenmoltenmetalisbeingsampledandresultsarerequiredintheshortestpossibletime.Thismethodwillproducesuitableresultsformostsamples;approximatecycletimeis2.25minutes.Asnotedabove,samplingandsamplepreparationarekeyelementstoaccurateO,N,andHdeterminationaswell.Itisuptotheusertodeterminewhichmethodbestmeetstheirneeds.***觸摸屏技術，用戶友好界面軟件進行校正、分析、診斷等。

Procedure–Powder/ChipSamplesPreparetheinstrumentasoutlinedintheoperatorsinstructionmanual.Determinetheinstrumentblank.LoginaminimumofthreeBlankreps.PresstheAnalyzebuttonontheinstrumentscreen.Afterashortdelay,theloadingheadslide-blockwillopen.Inserta***NickelCapsule(leavecapsuleopen)intotheopenportattopofloadinghead.Note:samplesusingautomationshouldbeplacedintheappropriateautoloaderpositionbeforestartingtheanalysissequence.Oncethesequencehasstarted,theautomaticanalysiswillstartandendautomatically.氧高低雙量程采用3個碳紅外檢測一氧化碳和二氧化碳，保證準確定量。廣東美國LECO氧氮氫分析儀廠家報價

分析軟件同時包括實時的環(huán)境參數的監(jiān)測，提供完整的系統(tǒng)圖表的模擬。江蘇美國LECO分析儀

Procedure-SolidSamplesInstrumentcalibration/driftcorrection.Addapproximately0.05gof***GraphitePowdertoa***GraphiteCrucible.Firmlyplacethecrucibleonthelowerelectrodetiporappropriateautoloaderposition.PresstheAnalyzebuttonontheinstrumentscreen,thelowerelectrodewillcloseandtheanalysissequencewillstartandendautomatically.Repeatsteps3bthrough3jaminimumofthreetimesforeachcalibration/driftstandardused.Calibrate/driftfollowingtheprocedureoutlinedintheoperatorsinstructionmanual.江蘇美國LECO分析儀