Quantum Northwest Turret 6/AP Istruzioni operative e di sicurezza

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22910EastApplewayAvenue,Suite4,LibertyLake,WA99019‐8606

Tel:(509)624‐9290•Fax:(509)624‐9488•E‐mail:[email protected]•Web:www.qnw.com

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Turret6/AP

6‐PositionTemperature‐ControlledCuvetteTurretfor

theAppliedPhotophysicsChirascan

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Manual&ProductOverview

January8,2016

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Turret6

CuvetteHolder

TC1Temperature

Controller

2

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TABLEOFCONTENTS

TableofContents....................................................................................................................................2

1.GettingStarted....................................................................................................................................3

A.YourShipmentWillContain:..........................................................................................................3

B.SystemSetup..................................................................................................................................3

C.SoftwareInstallation......................................................................................................................4

D.SystemOperation...........................................................................................................................4

E.UsingtheMenuButton..................................................................................................................5

2.FeaturesoftheTurret6.....................................................................................................................8

A.GeneralDescription........................................................................................................................8

B.Cuvettes..........................................................................................................................................9

C.Cuvettez‐Height.............................................................................................................................9

D.CoolingWaterforthePeltier.........................................................................................................9

E.DryGasPurging...........................................................................................................................10

F.ExternalTemperatureProbe........................................................................................................10

G.ExternalComputerControl..........................................................................................................10

H.ManualResettingoftheTurret6.................................................................................................10

3.ErrorCodes........................................................................................................................................12

4.SpecificationsSummary....................................................................................................................13

Appendix1.TemperatureSpecificationsfortheturret6.....................................................................14

Appendix2.SerialCommunicationsfortheTC1TemperatureController..........................................17

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3

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1.GETTINGSTARTED

ThankyouforpurchasingaQuantumNorthwestTurret 6/AP.Wewantyoutoenjoymanyyearsof

faithfulservicefromyourinstrument.Ifyouhaveanyquestions,feelfreetocontactusdirectlyat

[email protected]orthroughourwebsite:www.qnw.com.Acopyofthismanualcanbefoundon

thesiteundertheSUPPORTtab.

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A.YourShipmentWillContain:

Turret6package

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1. Turret6Temperature‐ControlledCuvetteHolder

2. TC1TemperatureController

3. BATH10SubmersiblePumpandBucket

4. powercable

5. USBcable

6. Turret6accessorykit(opticalslits,opaquelidand6magneticstirbars)

7. vinyltubingtoconnectwaterandgas

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DependingonYourOrder,YourShipmentMayContain:

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T‐Appsoftware

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T‐App,providedonaCD,isaprogramthatpermitsexternalcomputercontroloftheTC1

TemperatureController.Withthissoftware,thetemperatureofthesampleholderanda

temperaturesensedbyanexternalprobemaybeplottedvs.time.Simpletextscriptsmaybe

usedtoautomatemultipleoperations.

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B.SystemSetup

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1. InstalltheTurret 6inyourspectrometer.(Itmayhavebeenalreadyinstalledbythe

manufacturer.)

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2. PlugthepowercableintothebackoftheTC1TemperatureControllerandintoawallsocket.

(TheTC1willacceptACvoltagesfrom85to264at50or60Hz.)

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3. SupplycirculatingwatertothePeltierunit.IfyouchoosetousetheBATH10,thenattacha

portionofthe1/8‐inchIDtubingprovidedfromthesubmersiblepumptoeitheroneofthe

waterhosebarbsontheTurret 6.AttachanotherportionoftubingfromtheTurret 6back

tothebucket.Directionofflowisnotimportant.Putwaterinthebucket.Plugthepump’s

circularDINconnectorintothe12VoltoutletonthebackoftheTC1labeled“IO.”Briefly

4

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turnontheTC1andchecktobesurethatwaterisflowingbackintothebucket.Checkfor

leaks.

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4. Tolimitoxygenandminimizecondensationonthecuvettesurfaces,provideasourceofdry

gastopurgetheTurret 6.Attachalengthoftubingwith1/16‐inchinsidediameter,tothe

smallhosebarbonthebaseoftheTurret 6.Setthedrygasflowratetoabout50cc/min.

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5. TheTurret 6hastwoelectricalcables,onefordrivecurrentsandtheotherforsensitive

sensorsignals.ConnectthemtothebackoftheTC1TemperatureControlleronthe15‐pin

connectorslabeled“Sample”and“Reference,”matchinggenderasappropriate.

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C.SoftwareInstallation

NOTE:IFYOUPURCHASEDTHET‐AppPROGRAM,DONOTPLUGINTHEUSBCABLEINTOYOUR

COMPUTERUNTILTHESOFTWAREISLOADED.IFYOUDO,WINDOWSMAYAUTOMATICALLY

INSTALLANINCORRECTDRIVERTHATWILLBEDIFFICULTTOREMOVE.

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1. IfyoupurchasedtheT‐AppprogramforexternalcontroloftheTurret 6,inserttheCDinto

thecomputer’sCDdrive.Iftheinstallationdoesnotstartautomatically,locatethe

SETUP.exefileintherootdirectoryandrunit.Theinstallationprocessstartswithasmall

blackwindowthatisshownduringinstallationofthedriversneededtocontroltheTurret 6

throughaUSBconnection.Thiswindowwillthenbereplacedbythesoftwareinstallation

window.Followtheonscreenpromptstocompletetheinstallation.

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2. ConnecttheTurret 6toyourcomputerusingtheUSBcableprovided.TheNewHardware

installationprocesswillbeginautomaticallyandtakeafewmomentstofinish.

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D.SystemOperation

1. Useliquidsamplesinstandard1x1‐cmsquarecuvettesandplacethecuvettesintheTurret

6,notingthenumberingembossednexttotheindividualcuvetteholders.

2. Placeamagneticstirbarineachcuvette.

3. Ifyouwishtomonitorthetemperatureinsideacuvette,plugastandardSeries400orSeries

500thermistorprobe(notprovided)intothe¼‐inchphonejacklabeled“probe”intheback

paneloftheTC1.(ProbesareavailablefromQuantumNorthwestandothermanufacturers.)

Placetheendoftheprobeinaregionofthesolutionwhereitwillnotoccludethe

spectrometerlightbeam.

4. TurnontheTC1controllerusingtheswitchonthebackpanel.

5

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MenuButton

5. BriefInstructions:ThecontrollerdisplaybeginsontheDisplaypage.Usetheleftorright

arrowsontheMenuButtontocyclethroughthefivepagesofoptions,Display(thedefault

screen),SetTemperature,SetStirring,SetRamping,andSetPosition.Forexample,from

theDisplaypage,pushtheleftarrowoncetogettotheSetPositionpage.Oncethere,use

thetopandbottomarrowstochooseaposition,e.g.position5.PresstheSETbutton.The

cuvetteholderwillmovetoposition5andthemenuwillreturntotheDisplaypage.Toseta

temperature,presstherightarrowoncetogototheSetTemperaturepage.Oncethere,use

theupanddownarrowstosetatargettemperature,e.g.37.0°C.PressSETtoinitiate

temperaturecontrol.Thetemperaturewillriseandstabilize,indicatedbythechangeinthe

greenLEDlightonthefrontpanelfromflashingtosteady.Tocontrolstirring,gototheSet

Stirringpage.Usetheupanddownarrowstosetaspeed,e.g.1200rpm,andpressSETto

startthestirrer.MoredetailsontheMenuButtonareprovidedinSectionEbelow.

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6. Aftermeasurementsarecompleted,turnoffpoweronthebackoftheTC1controllerand

turnoffthewatersource.

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E.UsingtheMenuButton

Usetherightandleftarrowstocyclethroughfivepages:

–Display–SetTemperature–SetStirring–SetRamping–SetPosition–

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Display

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Display:

ThismainpageshowstheactualcuvetteHoldertemperature,theTargettemperatureanda

Probetemperature(ifaprobeispresent).ThepagealsoshowswhethertheRampandStirfunctions

Holder = 37.0 °C POS

Target = 37.0 °C 1

Probe = 36.9 °C

Ramp On Stir On

6

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areonoroff,andtheidentityofthecuvettePositionNumber(POSn,n=1to6)currentlyinthelight

pathway.Afterafewsecondsofinactivity,allotherpageswillrevertbacktotheDisplaypage.

Whenseekingatemperature,thegreenLEDonthefrontpanelwillflashslowly.Whenithaslocked

ontoanewtargettemperature,thegreenLEDwillremainlit.ArapidlyflashingredLEDusually

meansalooseelectricalcableorinadequatewaterflowforthePeltierunit.

Note:PressingtheSETbuttonwhiletheDisplaypageisactiveresultsinnoaction.Tostartorstop

controllerfunctions,accessthefourotherpages,SetTemperature–SetStirring–SetRamping

–SetPosition.

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SetTemperature

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SetTemperature:TosettheTargettemperature,usetheupanddownarrows.PressSETtoretain

thisnewTargetandinitiatetemperaturecontrol.ThegreenLEDlightwillbeginflashingslowlyasthe

deviceseeksthetargetedtemperature,andthepagewindowwillshowtheCurrenttobeON.

DiscontinueTemperatureControl:PressSETwhilethegreenLEDlightislitorslowlyflashingto

discontinuetemperaturecontrol.TheLEDlightwillturnoffcompletely,andthepagewindowwill

showtheCurrenttobeOff.

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SetStirring

SetStirring:ToturnonmagneticStirring,usetheupanddownarrowstochooseanapproximate

stirringspeedbetween1and2500rpm.PressSETtosetthespeedandinitiatestirring.Thepage

willupdatetoshowtheCurrentvaluetobethesameasStirspeed.

DiscontinueStirring:PressSETwhiletheStirringison(shownbynonzeroCurrentrpm)toturnthe

stirreroff.ThepagewillupdatetoshowtheCurrentspeedtobeOff.

Set Temperature

Target = 37.0 °C

Current= 23.6 °C Off

Set Stirring

Stir speed = 1200 rpm

Current = Off

7

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SetRamping

SetRamping:Toperformatemperatureramp,settheRamprateusingtheupanddownarrows,

andpressSET.ThepagewillupdatetoshowtheCurrentratein°/mintobethesameastheRamp

rate.Withrampingset,turningontemperaturecontrolwillgeneratealinearramptothetarget

temperature.Whenthesampleholderreachesthetargettemperature,nofurthertemperature

changeoccurs,althoughtheCurrentratewillremainasset.

Thefastestpossiblerampisdeterminedbyhowfastthecuvetteholdercouldreachthetarget

temperaturewithoutramping.Attemptingtoramptooquickly,especiallyathighandlow

temperatureextremes,willresultinanonlinearramp.Theslowestrampthatmaybesetonthis

pageis0.01°C/minute.(Ifneeded,muchslowerrampsmaybesetthroughsoftwarecommands.)

DiscontinueRamping:PressSETwhiletheRampison(shownbynonzeroCurrent°/min)toturn

theRampoff.ThepagewillupdatetoshowtheCurrentratetobeOff.

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SetPosition



SetPosition:Tochangethecuvetteposition,usetheupanddownarrowstochoosethedesired

TargetpositionandpressSET.Thecontrollerwillmovethecuvetteholdertotheselectedcuvette

position,reflectedbythevalueofCurrent.

Whenthecuvetteholderispoweredon,thedevicehomestoastartingpointbeforeseekingthe

targetedcuvetteposition.Tomanuallyhomethedevice,pushandholdtheSETbuttonforthree

seconds.Thiswillhomethecuvetteholderbeforemovingthedevicetothetargetedposition.

NOTE:IftheTurret 6 isaccidentallymovedmanually,seeinstructionsinsection2.H.

Set Ramping

Ramp = 0.55°/min

Current = Off

Set Position

Target = 5

Current = 1

8



2.FEATURESOFTHETurret6 

A.GeneralDescription

TheTurret 6hasarotating,temperature‐controlled,metalcuvettetowerwhichholdsuptosix

cuvettes.Aninsulatingcoverofurethaneplasticenclosesthecuvettetower,providingthermal

insulation.Afloorisattachedtothebottomofthetower,andtherotatingbodyoftheholder

containsaPeltierelementsandwichedbetweenthisfloorandabrassheatexchanger.Waterflows

throughtheheatexchangertodrawoffheatgeneratedwhenthetemperateofthecuvettetoweris

lowered.



Figure5.Turret 6 withasectioncutawaytoshowtheopticaccesstooneofthecuvettes

Aminiaturesteppingmotorresidesundereachcuvettetodriverotatingmagnet.Drygasentersa

1/16‐inchhosebarbonthefrontoftheinstrumentandiscarriedthroughamanifoldinthefloorof

theturrettosmallholesonthebottomofthe18cuvettewindows,threepercuvette.Thisflowof

gaswillkeepthewindowsfreeofcondensationwhenworkingbelowthedewpointtemperature.

Therotatingbodyismountedonalargeprecisionbearingandrotatedviagears,usingtheexternal

Vextasteppingmotor(notvisibleinthisview).



TwowiresexitbelowtheVextasteppingmotor.Oneconductsthedrivecurrentsforthestepping

motorandPeltierunit.Theotherconductsthesensorlines.Thetwobrass1/8‐inchhosebarbsfor

waterprovideaccesstotheheatexchanger.A1/16‐inchbrasshosebarbisusedforthedrygas.



CAUTION:ACCIDENTLYATTACHINGAWATERLINETOTHEDRYGASBARBWILLSEVERELYDAMAGE

THEINSTRUMENT.ATTACHTHELINESWITHCARE.

9



B.Cuvettes



TheTurret 6holdsstandard10x10mmcuvetteswithoutsidedimensionsof12.5x12.5mm.A

metalclipisusedtopusheachcuvetteintooneofthecornersofitsindividualspaceforreproducible

positioningandtofavorheattransfer.Wallsoftheturretbodyarerelievedtopreventscratchingof

theopticalsurfacesofthecuvette.



Cuvettesshouldbe45mmortaller,otherwisetheywillbedifficulttorecoverfromthecuvette

holders.

C.Cuvettez‐Height

The“z‐height”ofacuvetteisthedistancebetweenthebottomsurfaceofthecuvetteandthe

designedpositionfortheopticalcenterline,wheretheincidentbeamoflightstrikesthecuvette.

Thez‐heightforcuvettesintheTurret6is15mm.



Figure6.Thez‐heightofatypicalmicrocuvette

D.CoolingWaterforthePeltier

ThePeltierelement(or“thermoelectriccooler”)isaheatpump.Whencooling,ittransfersheat

fromtheturretbodytoaheatexchanger;whenheating,electricalpolarityisreversedandit

transfersheatfromtheheatexchangertothetower.Whencooling,itisparticularlyimportantto

transferthisheatawayfromthePeltier.Thisisaccomplishedwithflowingwaterthroughtheheat

exchanger.



Asourceofwater(orothercoolingfluid)mustbeconnectedtothe⅛‐inchhosebarbsonthefrontof

theTurret 6.ThiscanbedonewiththeBATH10,whichisprovidewiththeTurret 6. The BATH10

consistsofasubmersibleaquariumpump,theappropriatefittingsforconnectingtubing,anda

plasticbucket.ConnectthepumptotheTurret 6,placeitinthebucketwithwater,andrunareturn

tubetothebucket.Youmayalsoprovidethecoolingwaterfromanothersource,suchasa

refrigeratedcoolingbathorevenatapforbriefuse.



Youwillneedaflowrateof100‐300mL/minute.Thisflowshouldrequireapressureofabout3‐5

psi(0.2‐0.3bar).Donotexceedaninputwaterpressureof25psi(1.7bar),asdamagemayoccur

insidetheTurret 6.Theheatexchangerandhosebarbsarebrass,andthetubinginsidetheTurret

6issilicone.Besurethatanycirculatingfluidused,otherthanwater,willnotdegradethese

materials.



10



ThetemperatureoftheheatexchangerintheTurret 6ismonitoredusingathermistor.Ifthe

temperatureexceeds60°C,thentemperaturecontrolisshutdowntopreventdamagetothePeltier

elementandthewarning,“checkcoolantflow,”isdisplayedontheTC1temperaturecontroller.This

willhappenifthecirculatingfluidgetstoowarmand/orisrestrictedinflow.Theheatexchanger

temperaturemaybeaccessedbycomputerthroughtheRS232orUSBconnectionsonthebackof

theTC1TemperatureController(seeExternalComputerControlbelow).



Temperatureincreaseswillbefasterwhenroomtemperaturewaterisusedinthecirculator.

Temperaturedecreaseswillbefasterwhenicewaterisused.Onlywatershouldbecirculatedusing

theBATH10.Whenusingarefrigeratedbath,circulatingpre‐cooledfluids(suchas30%methanolor

dilutedethyleneglycol)atbelow0°Cwillpermitmeasurementsbelowthespecifiedtemperature

range.

E.DryGasPurging

DrygasflowsintotheTurret 6viathe1/16‐inchbrasshosebarbontherearside.Thegaspasses

throughsmallchannelsinthebaseoftheturretbody,topartiallyequilibrateintemperature,before

passingupthroughsmallholesonboththeinsideandoutsidecuvettesurfaces.Aflowofdrygasto

preventcondensationisnecessaryanytimetheTurret 6iscontrolledbelowthedewpoint

temperaturepresentontheinsideofthesamplecompartmentofthespectrometer.Forambientair,

thiswouldtypicallybeabout5°C.

F.ExternalTemperatureProbe

A¼‐inchphonejacklabeled“Probe”canbefoundonthebackpanelofTC1TemperatureController.

ThisjackwillaccepttheplugonastandardSeries400orSeries500thermistorprobe.Whenaprobe

ispluggedintothejack,theprobetemperatureispresentedonthedisplayoftheTC1.Placethe

probeinasampletomeasuretheactualtemperatureofthesample,whichwilllagintimefromthe

temperatureofthecuvettetower.



YoucanobtainaSeries400probefromQuantumNorthwest(product:Probe400),orfromseveral

othermanufacturers.Forexample,wesometimesrecommendtheEW‐08484‐00“400Series

Thermistorsmallflexibleprobeforfrozenfoodpackagesandcuvettes”fromColeParmer.Verysmall

diameterSeries500probesarealsoavailable.

G.ExternalComputerControl

AllfunctionsmaybeaccessedeitherthroughaSerial(RS232)oraUSBlocatedonthebackoftheTC

1TemperatureController.YoumaywriteyourownprogramorpurchasetheQuantumNorthwest

applicationprogramT‐App.T‐Appwillplottemperaturesoftheprobe,cuvettetoweroreventhe

Peltierelementheatexchangervs.time.Itwillalsopermityoutosetuptemperatureramps.Ifyou

wishtodoyourownprogramming,pleaseseetheAppendixforcommunicationinstructionsandthe

setoftextcommandsthatmaybeusedandresponsestothecommands.

H.ManualResettingoftheTurret6

DonotrotatetheTurret 6 byhand.Whentheturretisrotatedbyhand,itcanbeleftinaposition

thatmakesitunabletolocatethesensorneededforitshomingmechanism.Ifthisoccurs,thenthe

Turret 6maymakeagrindingnoiseandbeunabletoproperlyresetitsposition.ShouldtheTurret

6bemanuallyrotatedaccidentally,powerofftheTC1Controller.Then,rotatetheTurret 6sothat

cuvetteposition1,showninFigure7,issquarelyinplacewithinthelightbeampathwayofthe

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