
4.Note: Donotchangedisplaylimitsoncetheyhavebeenset, sincethiscouldresultin
incorrectlocalization.
Localizingleaks:
1.Themeasurementisconductedwithinthepreviouslydetermineddisplaylimit.
2.Spraythesystem withhelium asusual.
3.All leakageratesignalsthatarethesamesize orlargerwill be displayed
immediately.
4.Iftheleakageratesignalcurveisyellow,theleak is3times larger thanthereference
leak.
5.Aredsignalcurvemeansthatthedetectedleakisatleast10times largerthan the
referenceleak.
Leakageratemeasurement
MEASURINGLEAKAGERATE
•Shutoff ordisconnect thetestleak.
•Press “Start/Stop”ontheremotecontrol.
•Spraythesystem withheliumfromoutside.
•Observethereadingonthedisplay.
(IncasetheMiniTest300isnotcalibrated,thedisplaycorrespondstothe
measuredheliumpartial pressureinhPa)
•Press theZerokeytosubtractthecurrenthelium backgroundandsetthevalueto
zero.
•Theyellow hatchedbar indicatestherangetowhichaquantitativemeasurementis
possible.
•Ifonlytheyellow triangleisvisible,quantitativeleakageratemeasurementisalso
possibleinthelowestrange.
Calibration CALIBRATING THEUNIT
•Install pintestleak (capillaryleak)onthesystem.
•Entertheleakagerateof thetestleak on theremotecontrol.
•Prompt:“PressOKonoffset stable”
(Whentheoffsetsignalisstable,press“OK”)
•Prompt:“Sprayas usual, thenpressOKonsignal max”
•Spraytestleakwithhelium,exactlyinthesamemanner asforthetestleaklater.
•Theoldandnewcalibrationfactorsaredisplayed. Press “OK”toapplythenew
calibrationfactoror“X”torejectit.
•TheMiniTest300isnowcalibratedtothesystem.
Purge
HELIUM CONTAMINATION
•TheMiniTest300isequippedwithaprotection modeagainst contaminationwith
largeamountsof helium.Thiscontaminationmodespeeds upcleaning oftheunit
afterithasmeasuredlargeleaks.
•Automaticpurgeisdisabledbydefault. Incaseofheliumcontamination,purgingcan
beenabledviathemenu.
•The“Contamination”displayremainsuntil thequantityofheliuminthesystemis
reducedso farthat measurementscanbeconductedagain.
•Leak detectioncanberestartedbypressing“Clear”.If theMiniTest300isstill
contaminatedwithhelium, themessage“Contamination”willappear again.
Pfeiffer VacuumGmbH Berliner Straße4335614Asslarwww.pfeiffer-vacuum.com
HalloRalf,
nochmal dieInfofür Dichbezüglichdes
BesuchsvonHerrnFlatau.
HerrFlatauwirdmorgenmit einem
Kollegenzwischen13:00und 13:30Uhr
amPförtnersein.
IchwerdeSiedort abholenundgehe
dannmit deneninden
BespR_C22_Raum 4.
Wirerwarten Dichdannum 13:30Uhr.
PeterwirddieVertriebsleuteum13:45
Uhrebenfalls vomPförtnerabholen
undkommt dann anschließend auchin
denBesprechungsraum4.
Es gehtleider nicht anders,das wiruns
alleine mitHerrn Flatauindem Raum
zusammen setzten.