1.InstrumentOverviewsMarsbreathalyzerisaninstrumentusedfortestingtheconcentrationofalcoholoftheexpiredbreathfromahumansubject.Itadoptedadvancedfuelcellalcoholsensor,withexcellentsensitivityandwonderfulrepetition.TestprocedureiscontrolledbyAI-designedmicrocomputer.Workflowisreasonable,simple,convenientandfunctional.ThebacklitLCDdigitaldisplayisdirect-viewandclear.Thisdevicewillautomaticalarmandreal-timedisplaytheconcentrationofalcoholwhenalcoholconcentrationfromyourbreathisexceedthepresetvalue.2.MainSpecificati***TypeofSensorFuelcellalcoholsensorWorkingvoltageDC3V(2AAA)Workingcurrent≤30mAUsedenvironmentWorkingtemperature:0oCto40oCRelativehumidity:<95%Testresp***etime≤5SDetectionrange0.00mg/100mLto400mg/100mLAccuracy100mg/100mL:&plu***n;5%DisplayBluebacklightLCD4digitaldisplay3.OperatingInstructi***A>BatteryInstallation:A-1Removethecoverofbatterycompartmentatthebackofdevice.A-2Insert2“AAA”alkalinebatteriesaccordingtocorrectpolarity,thenclosebatterycompartmentcover.B>Start:Presspowerbuttonatleast2seconds,withashortbeeptone,backlitlightslitanddisplay0018(orothervalue)thatrepresentsthetestedtimessofar,pressbuttonless3secondstodisplaythetestvalueoflasttime.C>Blow:Displaythemovingvalue“0”and“blow”,pleaseblowcontinuouslyfor3secondsviamouthpiece.Thedevicecanautomaticallydetectalongwithbeepsoundswhenblowing,anddisplay“----”thatshowsdataanalysisisinprocessingafterblowing.Itwillautomaticallypoweroffifnoblowingactiontakenplacein2minutes.D>Resultdisplay:Severalsecondslaterdataanalysisfinished,thedisplayedvalueistheconcentrationofalcohol.E>Re-measure:Pressbuttonagainforthenexttest.F>Poweroff:F-1Afterfinishingthetestorduringthetest,holddownthebuttonatleast2secondstoturnoffthedevice.F-2Ifforgettingtoturnoffthedeviceafterfinishingthetest,thedevicewillautomaticallyturnoffafter1minute.F-3Whenthedevicedisplayscurrenttesttimesandlasttestresult,holddownthebuttonatleast2seconds,itwillbeaalertofwrongoperating(Thiserrorwillnotcauseequipmentdamage).Stoppressingthebuttonimmediately,devicewillautomaticallyreturntonormalstatus.4.Notes4.1Preventthedevicefallfromaheightorbyseverevibration;4.2Ifmeasurementisoperatedunderlackingpressuresymbolappeared,themeasuredvaluemaybeaslightdeviationfromtheactualvalue.4.3Inordertoreflectthebloodalcoholconcentrationintruth,pleasetest10minuteslaterafterdrinking.4.4Thedeviceshallnotbestoredorusedundertheenvironmentcontainscorrosivegas(suchaschlorine).5.CommonErrorsandTroubleshootingErrorsReasonTroubleshootingNoanydisplayonLCDIncorrectBatteriesinstalledInstallbatteriesaccordingtocorrectpolarityExhaustedbatteriesChangenewbatteriesCircuiterrorsReturntorepairNoresp***eExhaustedbatteriesChangenewbatteriesSensorfailureChangesensorPumpdoesnotworkChangenewbatteriesfirst,ifitstilldoesnotwork,thenchangepump.)