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【英文标准名称】:Theselection,installation,operationandcalibrationofdiagonalpathtransittimeultrasonicflowmetersforindustrialgasapplications
【原文标准名称】:工业气体用对角线路径通过时间超声波流量计的选择、装配、操作和校准
【标准号】:BS7965-2000
【标准状态】:作废
【国别】:英国
【发布日期】:2000-04-15
【实施或试行日期】:2000-04-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:尺寸公差;工作环境;校准;性能;选择;装配;流量计;气体流动;公式;超声波装置;误差修正;验证;渡越时间器件;工业的;传感器;流量测量;流量率
【英文主题词】:Calibration;Dimensionaltolerances;Environment(working);Errorcorrection;Flowmeasurement;Flowrates;Flowmeters;Formulae(mathematics);Gasflow;Gases;Industrial;Installation;Performance;Selection;Transducers;Transit-timedevices;Ultrasonicdevices;Verification
【摘要】:ThisBritishStandardprovidesguidanceontheselection,installation,operationandcalibrationofdiagonalpathtransittimegasultrasonicflowmeters(USMs)forindustrialgasapplicationsItisapplicableonlytothosedevicesinwhichtheentiregasstreamflowsthroughthebodyoftheUSMandthetransducersareincontactwiththefluid(wettedorinvasivetype).Thisincludesbothfull-boreandinsertiontypemetersemployingdirectorreflectivepaths.Itisalsoapplicableto"dirtygases"i.e.wherethegasiscontaminatedwithsolidsand/orliquidsinsmallquantities.Itisnotapplicabletoclamp-on/externallymountedmeters.NOTEAsanaidtoselection,thisstandardincorporatesanuncertaintyclassificationforUSMs.Thistakesintoaccountthecomponentsofuncertaintyrelatingtothemeterplusthoseadditionaluncertaintiesassociatedwithinstallationandoperationeffects.Therearefourclassificationsoffered.Theserangefromhighaccuracy"fiscal"applications(class1)togeneral-purposeprocessflowindicationandcontrolapplications(class4).
【中国标准分类号】:N12
【国际标准分类号】:17_120_10
【页数】:40P;A4
【正文语种】:英语