HASSEB MASTERCLOCK MINI Manuel utilisateur

October

2,2017

HASSEBMASTERCLOCKMINI,SLAVECLOCKIMPULSER

INSTRUCTIONSMANUALVERSION1.2



HASSEB

ASTER

LOCK

MINI



hassebMasterClock

mini

isaneasytousebatteryoperatedmasterclocktodrive

slaveclocksusedforexampleininstitutionslikefactories,offices,andschools.

Thedevicesends24voltsvoltagepulseseveryminute,every30seconds,or

everysecondtodrivetheclock.ThedeviceutilizessimpleWindowssoftwareto

controlthesettingsandfinetunethecrystal.

INSTALLATION

Thedevicehasatwowireconnectortoattachtheslaveclocktothedevice.

Dependingonthesettings,unipolarorbipolarpulsesaresentouteveryminute

orevery30secondstodrivetheclock.

Manyslaveclockshavethreewiresinsteadoftwo,todrivethesolenoidofthe

hour,andcanbejoinedwithoneortheotherofthewires.Inmostcaseshasseb

MasterClock

mini

iscapabletodrivealsothreewireslaveclocks.However,itis

yourresponsibilitytochecktheconnectionofyourparticulardevice!

ADJUSTINGTIME

Thetimecanbeadjustedbypressingthepushbutton.Thedevicewillsenda

singlepulseeverytimeyoupressthebutton.Ifyoukeepthebuttonpressed,the

devicesendssuccessivepulsesattheintervaloftwopulselengthtimes.

CONTROLPROGRAM

Bydefaultthedevicewillsendabipolarpulseeveryminutewithapulselength

of500ms.Ifthedefaultsettingsarenotsuitableforyourslaveclock,aneasyto

useWindowsprogramMasterClock.execanbeusedtoconfigurethe

MasterClock

mini

device.TheMasterClock

mini

isastand‐alonedevice,thustheUSB

cableneedstobeconnectedonlywhenconfiguringthedevice.

TheMasterClock

mini

isvisibletothehostcomputerasahumaninterfacedevice,

suchlikemouseorkeyboard,andrequiresnodrivers.

Duetothesoftware,whichisoptimizedforextremelylowstandbycurrent

consumption,itisimportanttoconnecttheUSBcablebetweenthe

MasterClock

mini

deviceandcomputerbeforepoweringthedevice.IftheUSB

cableisconnectedaftertheMasterClock

mini

hasbooted,Windowsmaynot

recognizethedevice.

AfterstartingtheMasterClock.exesoftware“Devicefound.”textshouldbe

visibleonthebottomleftcornerofthesoftware.Ifyouseeatext“Devicenot

found.Pleaserestarttheprogram.”checkthebatteryconnection,recheckthe

deviceUSBconnectionandrestarttheprogram.

October

2,2017

HASSEBMASTERCLOCKMINI,SLAVECLOCKIMPULSER

INSTRUCTIONSMANUALVERSION1.2



Figure1.TheMasterClock

mini

deviceisconfiguredusingasimpleWindowsprogram.

Duetothemanufacturingprocessandenvironmentalconditions,suchas

temperatureandrelativehumidity,thefrequencyofthecrystalofthe

MasterClock

mini

devicemayvary.Thecontrolsoftwarefeaturesafinetuning

functiontocalibratethecrystal.Thecalibrationiscarriedoutbysettingtheerror

insecondswithinamonth.

Themanualdrivefunctioncanbeusedtoadjustthetimeoftheclock.Byusing

themanualdrivefunctionofthecontrolsoftware,aselectableamountof

successivepulsescanbesenttothedevice.Thispreventsthemanualholddown

ofthepushbuttonswitchwhenadjustingthetime.

STATUSLED

ThereisanLEDtoindicatethestatusofthedevice.TheLEDwilltogglewhen

24Vpulseissenttotheslaveclockline.ThetogglingLEDwillalsoblinkfast,

whensettingsaresentthroughtheUSBport.Tosaveenergyandextendthe

batterylifetime,theLEDcanbedisabledusingthecontrolsoftware.

OPTIMIZINGTHEPOWERCONSUMPTION

Yourslaveclockisthemainpartusingthepowerofthebattery.Thequiescent

currentconsumptionoftheMasterClock

mini

deviceisintherangeofmicro

amperesandthusnegligiblecomparedtothepowerconsumptionoftheslave

clock.

Toreducethepowerconsumptionofthedeviceandthusextendingthebattery

lifetime,itisimportanttoadjustthepulselengthasshortaspossible.Itis

recommendedtousetheshortestpulselengthusingwhichtheslaveclockisstill

operational.

ThebatterylifetimecanbealsoslightlyextendedbydisablingtheLED,indicating

thepulsestatus.ThiscanbedoneusingtheWindowscontrolsoftware.

October

2,2017

HASSEBMASTERCLOCKMINI,SLAVECLOCKIMPULSER

INSTRUCTIONSMANUALVERSION1.2



Specifications

Inputvoltage6‐12VDC

Outputvoltage±24V

Maximumoutputcurrent50mA

Operatingtemperature0–50C

Dimensions45mmx45mmx10mm

Weight30g

SupportedoperatingsystemsWindows7/8/10



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