Coulometric Thickness Tester DJHE.docx
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Coulometric Thickness Tester DJHE.docx
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CoulometricThicknessTesterDJHE
CoulometricThicknessTester
DJH-E
Instruction
Pleasereadthismanualcarefullybeforeusingthetester
DECLARE:
1.Theinformationofthecopyright
©2000,COATTEST
Copyright:
don’tcopy,useortranslateuntilpermittedtoCOATTEST
2.Declaretotheinformationguarantee
Theinformationcontainedinthisinstructionmayberevisedtimely,andwillnotinformyouagain.
COATTESTisnotresponsibleforthemeasurementerrorsresultingfromoperations,whichdonotconformtothisinstruction.
3.ThemeasurabletypesoftheplatingforthemodelDJH-EElectrolysisthickness-tester:
Au,Ag,Sn,Zn,Cu,Ni,andCr
Iftheconsumerrequiresincreasingmeasurementtypesoftheplating,pleasecontactwithCOATTEST
4.Caution:
Foryoursafety,pleasedon’topenthecoverofthetesterbyyourselfinordertoavoidaccidents.
Controlledinformation
Theinstructionisonlyprovidedwithlegalconsumers;don’tplagiarize,copyorpropagatethefullorsomecontentsoftheinstructionwithoutourpermission.Wewillneverpardonanytorttothisinstruction,evenresorttothelaw.
Weexpecttheconsumertocarefullyoperatetoassureself-legalrightsandinterests.
CONTENTS
ØFeatures……………………………………………………………………………………1
ØPrecaution………………………………………………………………………………….2
ØNomenclatureofprincipalpartsandcontrols……………………………………...3
ØNomenclatureofMeasuringStand……………………………………………………4
ØPre-checkbeforemeasurement…………………………………………………………5
ØHowtoselecttheelectrolyticsolutions……………………………………………....6
ØHowtomeasuretheplatingmetalofsinglelayer……………………………….….7
ØHowtomeasurethehardchromiumplating………………………………………..8
ØHowtomeasurethemulti-layerplating…………………………………………9~10
ØSolutioncomponentsandmethod
ØTimesetandtroubleshooting………………………………………………………13
ØSpecificationandstatement……………………………………………………...14
ØMaintenanceandsupport……………………………………………………………….15
FEATURES
☑Abletomeasuresinglemetallayer
☑Abletomeasuremulti-metallayer
☑Abletomeasuremetalcoatingsonplastics
☑Measurementisnotinfluencedbythesubstrate
☑LEDdisplay;printreportsdirectly
1
PRECAUTION
1.Avoidtemperaturechange
Whenmovedsuddenlyfromcoldtowarmplace,thetesterwillcausemeasurementuncertainty
2.Moistanddust
Avoidusingthistesterwherethereismuchmoistanddust,otherwise,theinnerpartsmaybedamaged
3.Avoidtoohighortoolowtemperature
Thetesterandsolutionsshouldavoiddirectsunlightandheatradiator.
Thetemperatureshouldbebelow30centigrade.Thegasketsmay
becomesoftbecauseoflowtemperature
4.Keeptheelectrode,electrolysiscellandgasketclean
Thescrewsandclipscontaminationmayinfluenceperformance.Theelectrolysiscellandgasketsubjectedtocontaminationwillleadtomeasurementerrors.
5.Avoidusingtheelectrolyticsolutionswhentemperatureistoolow
Avoidusingtheelectrolyticsolutionslowerthan10℃,somesolutionslikeA4,E4,A10,A12maycrystallizeandneedtoheatbeforeuse
6.Howtocleanthetester
Wipewithcleanandsoftcloth;don’tusecleaningliquidorotherchemicals,sprayingcleaneretc.
7.Don’tpilethingsonthetester
Thistestershouldbeplacedinevenandstraightplace,don’tstackotherthingsonit.
8.Thenormaltemperature
Pleaseusethistesterwithin20±5℃ofroomtemperature.
2
NOMENCLATUREOFPRINCIPALPARTSANDCONTROLS
Thicknessindicator
Measurementbutton
Useless
Useless
ACinputsocketandfuse
LED
Powerswitch
Cell
Stirringspeed-
adjustingknob
Outletofprintpaper
Clocksetbutton
Lidofpaperbox
SEL
LF
Printerinput
Powerswitch
Printeroutput
PlatingofCrselect
button
Printbutton
Decreasingbutton
Increasingbutton
Resetbutton
Reversebutton
Stopbutton
Metalselectbuttons
Bracket
3
NOMENCLATUREOFMEASURINGSTAND
4
pre-checkbeforemeasurement
1.Placethetester,testingstandandthestandofthechemicalsontheworkingdeskinevenandstraight.
2.BesurethatthepowersupplyisAC220V.
3.connectthetesterwithteststandandprinterbycables
4.Pressanyselectplatingbutton,shortoutthesignalcliptotheterminalofsignalplug,turnonthepowerswitchandthenpressthemeasurementbutton,thestirrershouldrotateandthedisplayedbegintocount.Disconnecttheconnectinglinebetweenthesignalclipandtheterminalofsignalplug,thetestershouldimmediatelystoptocountandalarm.Theconditionofthetestercanbeconsideredasnormal.
5.Iftheprinterison,aftertheprocedure4,pressPRINTbutton,andCOAT,THICK,andTIMEwilldisplay
5
Howtoselecttheelectrolyticsolutions
Designationofelectrolyticsolutionsanddepositedmetalandbasecombinations
Plating
metals
Base
Steel
Copperanditsalloys
Aluminum
Nickel
Multi-layer
nickel
NdFeB
Gold(Au)
A1
A1
Silver(Ag)
A6
A7
A6
Tin(Sn)
A3
A3
A3
Zinc(Zn)
A8
A8
A8
A8
A8
A8
Copper
(Cu)
A4
A4
A4
A4
Nickel(Ni)
A5
A5
A10
Chromium
(Cr)
A2
A3
A2
A2
A2
6
Howtomeasuretheplatingmetalsofsinglelayer
Example:
Themeasurementofthezincplatingwithwhitepassivationonthesteelsubstrate,it’sthicknessis10μm.
1.Usetherubbertowipeawaythepassivationfilmsonthesurfaceofzincplatingofthesampletobemeasured.
2.Pressthetestingheadverticallyonthesurfaceofthesampletobemeasured(untilnosolutionleaks)
3.ElectrolyticsolutionA8isselectedfromtable2forthecombinationofzincplatingonsteelsubstrate.Thecellmustbefilledwith2mloftheelectrolyticsolutionbyusingadropper.Thecellwillnotbefilledfull.(Thesolutionlevelisabout3mmfromtheopeningofthecell)
4.Insertpipettetothebottomoftheelectrolysiscell,repeatsuckingseveraltimesinordertoremovetheairbubblefromcell,enablestheelectrolyticsolutiontocontactcompletelywiththezincplatingbeforeplacingthestirrer
5.PresstheZnbutton.
6.Insertthesignalplugintotheholeofthescrewoftheelectrode,attachtheredsignalcliptotheplatedobjectandmakesureconnectioniscorrect.
7.pressthemeasurementbutton,thestirrerbeginsrotating,whilethebuzzeralarms,themeasurementwillbestoppedautomatically,thethickness12.2μmhasbeendisplayedontheindicator,pressthestopbutton.
8.raisethestirrer,removethewastesolutionandthesample
9.Rinsethestirrer,cleanuptheusedelectrolyticsolutionbyusingthepipette,rinsethetestinghead,removethesample
10.whentheprinterison,afterprocedure9pressPRINTbuttonandCOAT,THICKwilldisplay
Note
WhenmeasuretheplatingofAuorCr(decoratechromium),depresstheTbuttonandtheAuorCrbuttonattheonetime.
7
Howtomeasurethehardchromiumplating
Example:
Themeasurementofthehardchromiumplatingonsteelsubstrate,thethicknessofthehardchromiumplatingis35μm.
1.Usetherubbertowipeawaythepassivationfilmsonthesurfaceofchromiumplatingofthearticletobemeasured.
2.Depressthetestingheadverticallyonthesurfaceofthearticletobemeasured,appliedanadequatepressureuntilwithoutanyleakage.
3.ElectrolyticsolutionA2isselectedfromtable2,thecellmustbefilledwith2mloftheelectrolyticsolutionbyusingadropper.Thecellwillnotbefilledfull.(Thesolutionlevelisabout3mmfromtheopeningofthecell)
4.Insertthepipetteintothebottomoftheelectrolysiscell.Repeatsuckseveraltimes,inordertoremovetheairbubblefromthecell,enablestheelectrolyticsolutiontocontactcompletelywiththechromiumplating.
Note:
Whenmeasuringthechromiumplatingplacingthestirrerisnotarequirement.
5.
DepresstheplatingofCrselectbuttonandtheCrmeasurementbutton.(theplatingofCrselectbutton:
---measurethedecoratechromium---measurethehardchromium)
6.Insertthesignalplugintotheholeofthescrewoftheelectrode,attachtheredsignalcliptotheplatedobjectandbesurethataproperconnectionhasbeendone.
7.pressthemeasurementbutton,thestirrerbeginrotating,whenthethicknessof15μmshowsontheindicatorpressthestopbuttonthenpresstheprintbutton(ifnotthetestercouldnotworknormally),renewtheelectrolyticsolution,againpressthemeasurementbutton.Renewaloftheelectrolyticsolutionshouldbemadeatfrequencyofeven15μmuntilbuzzing.Recordthethicknessofthehardchromiumplating.
8.Cleanuptheusedelectrolyticsolutionbyusingthepipette.Risethetestinghead.Removethearticle.
9.Cleanuptheinternalsurfaceofthecellandgasketbyrinsewaterandwiping.Besurethatthereisnotanyoxidationproductsonthembeforetheyarereplacedback.
8
Howtomeasurethemulti-layerplating
Example:
Themeasurementofthethicknessofthemulti-layerdepositsconsistingofcopper、nickelandchromiumplatingonthesteelsubstrate.Thethicknessofthecomponentlayersis0.4μmofchromium,14μmofnickel,10μmofcopper.
1.Usetherubbertowipeawaythepassivationfilmsonthesurfaceofplatingonthearticletobemeasured
2.Pressthetestingheadverticallyonthesurfaceofthearticletobemeasured,appliedanadequatepressureuntilwithoutanyleakage.
3.ElectrolyticsolutionA2isselectedfromtable2,thecellmustbefilledwith2mloftheelectrolyticsolutionbyusingadropper.Thecellwillnotbefilledfull.(Thesolutionlevelisabout3mmfromthecell)
4.Insertthepipetteintothebottomoftheelectrolysiscell.Repeatsuckingseveraltimes,inordertoremovetheairbubblefromthecell,maketheelectrolyticsolutioncontactcompletelywiththechromiumplating.
Note:
Whenmeasuringth
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- Coulometric Thickness Tester DJHE