Busch COBRA BC 0601–1200 A/G User manual

Brand: Busch

Model: COBRA BC 0601–1200 A/G

Type: User manual

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Instruction Manual

COBRA

Screw Vacuum Pumps

BC 1200 A

0870732473/-0002_en / Original instructions

02/06/2023

Preface

Page 2 0870732473 (En)

Preface

worldwide.

–

–safety,

–transport,

–storage,

–

–maintenance,

–

–troubleshooting

BC 1200 A

1200 A . . . . .

NW 0090 A, PUMA WY 1251 B,

COBRA BC 1200 A

1200 A

NW 0090 A

WY 0701 B

Power connector on vacuum pump rear side

UK-Declaration of Conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

0870532473En) Page 3

COBRABC1200 A

IN Inletconnection

OUTDischargeconnection

ECElectricalconnections

PRVNitrogenpressurereducer

ECPEarthingconnectionM8

CWCCoolingwaterconnections

NC Nitrogenconnections

CAOExtractingventilator

EB Eyebolts

RCLCD

PLC PLC box

EB Eyebolts

ESS Emergencystopswitch(EMO)

OSGOilsightglass

OSG1Oilsightglass

OSG2Oilsightglass

OSG3Oilsightglass

CPCPLCconnection

MBOn/offswitch/Maincircuit

breaker

RF Ventilator

VFD1Variablefrequencydevice

VFD2Variablefrequencydevice

MOT1Motor

MOT2Motor

TS3Oil temperature sensor (MB)

TS4Sensor PT100

PSAPressuresensor

DGR1Regulatingvalve,dilutiongas

DGR2Regulatingvalve,dilutiongas

MVNitrogensolenoidvalve

DGFNitrogenflowmeter

CWMCoolingwaterflowmeter

CWRCoolingwaterregulatingvalve

PRV

ECP

CWC

CAO EB RC

PLC

OSG

ESS

CPC

BC 1200 A

OUT

Page 4 0870532473En)

VFD2

MOT1

TS4

MOT2

OSG3 VFD1

OSG2

TS1

PSA OSG1

CWM

CWR

DGR1 DGR2

DGF

BC 1200 A

Productdescription

Use

TheCOBRABCvacuumpumpsaredesignedforuseinthefieldof

microelectronicsandsimilarindustries.

Theycanbeusedtosuckgasesandgasmixtures.

WARNING

Whenusingtoxic,inflammableand/orexplosivegases,makesure

thatthesystemcorrespondsindesigntoapplicablelocaland

nationalsafetyregulationsandthatallapplicablesafetymeasures

arefollowed.

Allproduct-specificsafetyregulationsmustbeobserved.

Solidparticlesmustnotgetintothevacuumpump.Proceduralerrors

canresultinthepumpsuckinginacertainquantityofliquid.Ifthe

pumphassuckedinliquid,ashortdryingtimeisnecessaryattheend

oftheprocedure.

Theallowedmaximuminletgastemperaturedependsontheinlet

pressureandthetypeofgas:thelowertheinletpressure(Pa),the

higherthedrawngastemperature(TGas)canbe.

Thefollowingindicativevaluesforaircanbeconsidered:

– Pa>50mbar,TGas<80°C

– Pa<50mbar,TGas<200°C

Thevacuumpumpisintendedforuseinapotentiallynon-explosive

environment.

Asfarastemperatureisconcerned,thevacuumpumpissuitablefor

evacuationofa300literstank.Thevacuumpumpisnotsuitablefor

continuousdutyatapressuremoreorequalthan150(hPa)mbar.

Caution,theoperatingcycleof150(hPa)mbarmustnotexceedmore

than5min.

Forotherapplications,contactyourBuschrepresentative.

- Maximuminletpressure:1bar(abs).

- Withpumprunningatfullspeed,donotexposetoinletpressure

> 300(hPa)mbar.

Thevacuumpumpistightdowntoultimatepressure.

Operatingprinciple

COMBI

The COBRA BC 1200 A pumps areacombinationof a screw vacuum

pumpNW0090A(DP)andaRootsvacuumpumpWY1251B(MB).

Productdescription

0870532473En) Page 5

1 Inlet

2 Outlet

3 Oil

4 Coolingwater

5 Barriergas

6 MotorklixonDP

7 Intakemedium

8 Screwrotors

9Rootslobe

10MotorklixonMB

Process gas inlet

Process gas

outlet

Cooling water

inlet

Cooling water

outlet

Nitrogen inlet

TS3

TS4

DGF PRV

PSA OSG1

OSG3

MOT1 TS1

TS2

OSG4 MOT2 VFD2 VFD1

CWM

CWR

DGR2

DGR1

DGFNitrogenflowmeter,dilutiongas

PRVNitrogenpressurereducer

PSAPressuresensor

TS3Oiltemperaturesensor(MB)

(klixon)

TS4SensorPT100

OSG1Oillevelindicator(DP)

OSG3Oillevelindicator(MB)

OSG4Oillevelindicator(MB)

MOT1Motor(DP)

MOT2Motor(MB)

CWMCoolingwaterflowmeter

VFD1Frequencyinverter(DP)

VFD2Frequencyinverter(MB)

CWRCoolingwaterregulatingvalve

DGR2Regulatingvalve,dilutiongas

DGR1Regulatingvalve,dilutiongas

MV Nitrogensolenoidvalve,dilution

gas

TS1Klixon(DP)

TS2Klixon(MB)

BC 1200 A

TheCOBRABC1200 AvacuumpumpsareCOBRANWscrew vacuum

pumpswithcoolingwaterandnitrogencircuits.

TheCOBRANSscrewvacuumpumpsaredrivenbywater-cooled

motors.

PrincipleofDPvacuumpumps

TheCOBRANSscrewvacuumpumpsworkbytheprincipleofspiral

pumps.Twoparallelscrews(8)rotateinoppositedirectionsinthe

pumpbody.Enteringgasesaretrappedbetweentheflightsofthe

screwsandthepumpbody.Thegasesareconveyedbytherotationof

thescrewstotheexhaust,wheretheyaredischarged.

PrincipleofMBvacuumpumps

TheRootsvacuumpumpsoperateaccordingtotheapprovedprinciple

oftheRootstypemachine.Operationisbothsimpleandeffective. Two

lobes(9)withidenticalprofilesrotateinoppositiondirections withina

casing.Astheyrotate,gasisdrawnintothespacebetween eachlobe

andthecasingwhereitistrappedandbytherotation pushedoutinto

thedischarge.Thisactionisrepeatedtwiceforeach revolutionofeach

lobeandthereforefourtimesforeachrevolutionof thedriveshaft.

Thereisnomechanicalcontactbetweenlobesand cylinder.Sonooil

lubricationisrequired.

Thedrivemotorofrootspumpisawatercooledcannedmotor.

Gasflowchecks

ApressuresensorPSAatthedischargemonitorsthedischarge

pressure.Ifthepressurereachesmorethanthelimitvalue(alarm,

presetatthefactory:0.2bar),thepurgecyclestarts.

Oilcircuit

Sincethecompleteoperatingprincipleworkswithoutcontact,nooil

circuitisneededintheworkarea.

Cooling

Thevacuumpumpiscooledby

–adirectcoolingwatercircuitinthemotorsandtheDPandMB

transmissioncasing.TheflowregulatingvalveCWRofcooling

waterispreseton3-4l/minatthefactory.Thewatercoolsinthe

DPandMBpumpsmotors,thetwofrequencyinverters(VFD1,

VFD2)andthedrive/pumptransmissionDPsystem.

–adirectcoolingwatercircuitintherearbearing(forexceptionally

coolrunninginoption).

NOTE:TheCOBRABC1200 Avacuumpumpsareprincipally

dispatchedwithoutoilalreadyinthevacuumpumpbut,without cooling

water.Beforevacuumpumpfirststartup,controltheoillevel andthe

coolingliquidlevel.Intheeventofabsenceofoneortheother

oftheselubricants,pleasecarryoutthefilling(pleaserefertothe

variouschaptersoffilling).Donotforgettoconnectthecoolingwater

supplybeforethefirststartup.Operationwithoutthesecoolantscan

resultindamagetothevacuumpump.

Nitrogensystem

Thenitrogensystemcanbeusedinanumberofdifferentways:

–nitrogen is used as dilution gas. It is injected inside the cylinder on

two different places. Nitrogen flow injected in the middle hole is

preset at 2 l/ min and can be adjusted with valve DGR 2, depending

on the application. Nitrogen flow injected in the hole on cylinder

endplate side is preset at 10 l/ min and can be adjusted with valve

DGR 1, depending on the application. When flow is too low a

warning then an alarm signal is generated by flowmeter DGF to the

PLC. Status of the pump depends on the alarm function set by user

(factory setting : None, pump continues running with an alarm).

Dilution improves the screws functioning, especially when sucking

corrosive gases.

–nitrogenisusedassealinggas.Thenitrogenisinjectedbetween

the transmissionandtheprocessgastoachievegoodcloseness.

The Nitrogenflow usedforthesealingissetbytwoorifice plates

(f).With a pressureof1,5bar,theflow isaround8-10l/min.

–nitrogen is used as purge gas. The purge eliminates traces of gases

remaining in the vacuum pump. The vacuum pump purge cycle is

programmed in the control and starts, either after a STOP

operation or after an alarm function. For a correct purge

execution, the shut-off valve at the inlet flange must be closed.

The purge cycle lasts about 30 min.

(Programmable time in the basic parameters).

Optionalfunctions/Useofavailable

accessories

Apressuresensor(PSA)mountedattheexhaust,controlsthe

overpressureattheexhaust.Ifoverpressureisabove0,3bar,pressure

sensorgivesawarningthenanalarmsignal.Statusofthepump

dependsonthealarmfunctionsetbyuser(factorysetting:None,

pumpcontinuesrunningwithanalarm).

AtemperaturesensorPT100(TS4)mountedonthecylinder,measures

thetemperatureinsidethecylinder(DP).

Asilencerorsoundabsorber(accessory)attheexhaustreducesthe

noiseofthepumpandcollectsanycondensate.

Aleak-protectionnon-returnvalve(optional)attheexhausttrapsthe

condensateinthepumpwhenthepumpisswitchedoff.

TheLCDcontrollerprocessesthedataofthesensorsasfollows:

–PSA:exhaustpressure

–TS4:temperatureinsidethecylinderDP

–MOT1andMOT2:DPandMBcurrentandspeed

–DGF:nitrogenflowrate,dilution

–CWM:coolingwaterflowrateinmotors/transmission/frequency

inverters

See"InstallationandMaintenanceInstructions,BuschPLCandBusch LCD(No.

0870758077)".

On/Offswitch

Thevacuumpumpisdeliveredwithacircuitbreaker.Thefunction start/stopcan

bedoneinLocalbyusingtheLCDcontrollerorin Remotebytheproduction

machine.

Versions

Furthervacuumpumpdescriptionsstatethenominaldisplacementand thedesign

level.

Example:BC1200 A

BC=standardversion

1200=1200m3/h

A=Design

Productdescription

Page 6 0870532473En)

BC 1200 A

Safety

Intendeduse

DEFINITION:Forthepurposeofcorrectunderstanding,the“handling”

ofthevacuumpumpimpliesthetransport,storage,installation,

commissioning,theinfluenceonoperatingconditions,maintenance,

troubleshootingandoverhaulofthevacuumpump.

Thevacuumpumpisintendedforindustrialuse.Itshouldonlybe

handledbyqualifiedstaff.

Thedifferentapplicationsforuseandoperationallimitsofthevacuum

pumpaslaidoutinthe“ProductDescription”andthe“Installation

Prerequisites”ofthevacuumpumpmustbeobservedbothbythe

manufacturerofthemachineryintowhichthevacuumpumpistobe

incorporatedandbytheenduser.

Theneedforpersonalsafetyregulationsdependsmainlyonthe

applicationthepumpwillbeusedin.Theendusermustprovidethe

operatorswithallnecessarymeansandtoolsandmustinformhis

personnelaboutanydangersemanatingfromtheprocessedproducts.

Theoperatorofthevacuumpumpmustobservethesafetyregulations

andmusttrainandinstructhispersonnelaccordingly.

Localregulationsregardingthemotorsandelectriccontrolelements

mustbeobservedwheninstallingthepumpinpotentiallyexplosive

environments.

Themaintenanceinstructionsmustbeobservedandrespected.

Itisvitalthattheseinstallationandmaintenanceinstructionsareread

andunderstoodbeforethevacuumpumpisused.Ifyouhaveany

doubts,pleasecontactyourlocalBuschrepresentative.

Safetyinformation

Thevacuumpumphasbeendesignedandmanufacturedinaccordance

withthelatesttechnicalandsafetystandards.Nevertheless,residual

risksmayremain.

AlotofsafetyinformationismentionedintheseInstallationand

OperatingInstructionsaswellasonthepump.Thesafetyinstructions

mustbeobserved.Thesafetyinformationcanquicklybedetected

throughkeywordslikeDANGER,WARNINGandCAUTIONandis

definedasfollows:

DANGER

Disregardofthissafetynotewillalwaysleadtoaccidentswith

potentiallyfatalinjuriesandseriousdamages.

WARNING

Disregardofthissafetynotemayleadtoaccidentswithpotentially

fatalinjuriesandseriousdamages.

CAUTION

Disregardofthissafetynotewillalwaysleadtoaccidentswithminor

injuriesanddamagestoproperty.

Safetystickers

COBRANW0090A

COBRAWY1251 B

BC1200 A

Safety

0870532473En) Page 7

WARNING!

Hot surface!

Do not touch!

WARNING!

Hot surface!

Do not touch!

BC 1200 A

WARNING!

Hot surfac e!

Do not touch!

The COBRA BC system includes provision for the secondary

containment of liquid leaks such as water and oil.

Noiseemission

Refertothetable“Technicaldata”forthepermissiblenoiseleveling

freefieldconditionsaccordingtoENISO2151.

CAUTION

Thesoundlevelofthevacuumpumpwithinacertainperimeterof

thepumpishigh.

Riskofhearingdamage.

Userswhoarespendingalongerperiodoftimeinthevicinityofa

non-insulatedvacuumpumpmustwearsuitableearprotection.

Safetyarea

Beforeanymaintenanceaction,ensureasafetyperimeterofaleast

610[mm]aroundthepump.

Electricalsafety

TypesofElectricalWork

ThefollowingarethefourtypesofelectricalworkdefinedbytheSEMI

S2,latestversion,guideline:

Type1

Equipmentisfullydeenergized.

Type2

Equipmentisenergized.Energizedcircuitsarecoveredorinsulated.

NOTE :Type2workincludestaskswheretheenergizedcircuitsareor

canbemeasuredbyplacingprobesthroughsuitableopeningsinthe

coversorinsulators.

Type3

Equipmentisenergized.Energizedcircuitsareexposedandinadvertent

contactwithuninsulatedenergizedpartsispossible.Potential

exposuresarenogreaterthan30voltsrms,42.4voltspeak,60voltsdc

or240volt-ampindrylocations.

Type4

Equipmentisenergized.Energizedcircuitsareexposedandinadvertent

contactwithuninsulatedenergizedpartsispossible.Potential

exposuresaregreaterthan30voltsrms,42.4voltspeak,60voltsdc,

or240volt-ampindrylocations.Potentialexposuresto

radio-frequencycurrents,whetherinducedorviacontact,exceedthe

limitsinTableA5-1ofAppendix5(SEMIS2guideline).

LockOut/TagOutprocedure(Type1of

electricalwork)

lStopthepumpwiththeLCDcontroller(pressonSTOPbutton

during10s)

lPressonemergencystopbutton

lSwitchoffthemaincircuitbreaker

lSwitchoffthecustomer’spowersupply

lSwitchoffthewaterandnitrogenquickconnections(inletfirst,

thenoutlet)

lPutthelabelorwarningboard“Maintenanceprocessing”onor

nexttothepump

Emergencyoffcircuitdescription

lTheEmergencyoffcircuitmaybeopenedbypressingon

emergencystopbutton.Ifthiselementoccurs,thentheDPand

MBpumpswillimmediatelystop.ThePLCwillremainenergized

tosavethepumpstatus.

lIftheemergencystopbuttonwaspressed,checkthestartupof

thepumpthenreleasethisbuttontorestartthepump.Presson

StartbuttonontheLCDcontroller,thepumpwillrestart.

Installationofthevacuumpumpina

seismiczone

Uponreceipt,thevacuumpumpisfixedonthetransportpalletwith

twobrackets.

lConveythepumptoitsfinallocationwithapallettruckbefore

removingitfromitssupport

lUnscrewthefixingscrewsofthepumponthetransportpalletand

removethemachinefromitssupportwithanappropriatelifting

systembyusingtheliftingbracketsmadeforthispurpose

lThepumpmustnotlayonlyonthebrackets.Unscrewthefour

adjustingnutsuntilthemachinelegstouchtheground

lCheckthatthewheelsnolongertouchtheground

CAUTION

ThevacuumpumpisfixedtothegroundwithfourM10screws,two

screwsperbracket.Thefixingscrewmuststanda1200Ntensile

force(perbracket).

Thefinalusermustadaptthetypeofscrewsdependingonthe

groundmaterial.

Informationoverthelubricants

Oil

BuschYLC250B,Art.No.0831131 400(0,5l @ 1kg)

(BuschYLC250B)

QuantityBC1200 A:

–WY0125B-MB:1,4l

–NW0090A-DP:0,12l

Replacement:After16'000h(seeMaintenanceprogram)

Technicaldatasheet:Pleaserefertochapter"Oiltype/Quantity".

Decommissioningprocedure

Whentheproductarrivesattheendofthelifetime,itisnecessaryto

proceedtothedecontaminationofthevacuumpump

Safety

Page 8 0870532473En)

>ŝŌŝŶg Bracket

Wheel

ĚũƵƐƟŶg Nut

BC 1200 A

CAUTION

Onlyauthorizedpersonnelmaycarryoutanydismantlingonthe

vacuumpump.Beforeworkbegins,theoperatorofthevacuum

pumpmustfillinaformora“DeclarationRegardingContamination

ofVacuumEquipmentandComponents”thatprovidesinformation

onpossibledangersandappropriatemeasures.

Ifthisformhasnotbeenfilledincompletelyandsignedbya

responsibleperson,thevacuumpumpmaynotbedismantled.

lProceedtodisassemblyofthevacuumpump.Pleasemakesureto

wearapersonalprotectiveequipment(PPE)priortoany

interventiononthevacuumpump.Someresiduemayremain

inside.

lProceedtodecommissioningofthedifferentpartsaccordingtothe

currentlocalandnationallaws

Transport

TheCOBRABCvacuumpumpsaretestedandcheckedinourfactory

beforecarefulpacking.Checkthepackagingfortransportdamage

whenthegoodsarrive.Thepumpcanwithstandtemperatures

between-25°Cand+55°Cduringtransport.

Transportinpackedstate

Packedonapallet,thevacuumpumpcanbemovedwithahand

forklifttruck.

Transportinunpackedstate

Thevacuumpumpisfastenedtothepalletwithfixingpins:

uUnscrewthefasteningnutsunderneaththepallet.

CAUTION

Donotwork,walkorstandundersuspendedloads.

CAUTION

Pleasecheckouttheweightofthevacuumpumpbeforeliftingitup

(see"TechnicalData").

Useadequateliftinggearforthis.

NOTE: Theeyeboltsarefittedmoreorlessatequaldistancefromthe

centreofgravityofthevacuumpumpincl.drivemotor.Ifany

accessoriesthatcouldupsetthebalanceofthevacuumpump,are

installed,orifthevacuumpumpisdeliveredwithoutdrivemotor,itis

necessarytoaddabeltorropeatasuitablepointwhenliftingthe

pump.

lAttachliftinggearsecurelytotheeyeboltoreyebolts

lUseliftinggearwithacranehookequippedwithsafetylatch.

lLiftthevacuumpump

Incasethevacuumpumpwasboltedtoapalletwithfixingbolts:

Unscrewthefixingboltsinthebaseframe.

CAUTION

Incaseofavacuumpumpfilledwithoil,makesurethatbylifting

theinclinationangleofthevacuumpumpdonotexceed5°from

thehorizontal.Incaseoftoohighinclination(>5°),riskofoilleak

withintheworkarea

Makesurebeforeeverytransportusingtheappropriateliftingmean

thattheinclinationofthevacuumpumpislessthan5°.

Thepackagingmaterialmustbedisposedofinaccordancewithlocal

andnationalregulations.

Thishandbookiscontainedinthedeliverypackage.

Storage

Temporarystorage

lMakesurethattheintakeandexhaustflangesareclosed(puton

theprotectivecapsincludedinthedeliverypackageofthevacuum

pump)

lStorethevacuumpump

–ifpossible,thevacuumpumpshouldbestoredinitsoriginal

packaging,

–indoors,

–dry,

–inadust-freeandvibration-freeroom

Removalofthepump

Beforestartingavacuumpumpthathasbeenstoredoutsidethe

buildingforawhile,thevacuumpumpmustbemovedtoaroomwith

ambienttemperature,whereitshouldrestforaday.

Preservation

Ifthevacuumpumpwillbeexposedtounfavourableambient

conditions(forexample,aggressiveenvironment,frequenttemperature

changes),beginimmediatelywithpreservationworkonthevacuum

pump.

Inthecaseoffavourableambientconditions,performpreservation

workonthevacuumpumpifastorageperiodofmorethanthree

monthsareplanned.

lMakesurethatallopeningsarehermeticallysealed;useadhesive

tapetofastenlooseparts(sealrings,flatseals,etc.).

Transport

0870532473En) Page 9

BC 1200 A

NOTE:VCIistheabbreviationfor“volatilecorrosioninhibitor”.The

VCImoleculeisanorganiccorrosioninhibitorinthevapourphase.

Integratedinvariouscarrierssuchasfilm,cardboard,paper,foam,

liquidandpowder,itprotectsthepartsagainstcorrosionasaresultof

itsactioninthevapourphase.However,VCIpackagingcanattack

syntheticsurfacesandsurfacesofotherelastomers.Ifindoubt,please

contactyournearestdistributor.VCIpackagingprovidesseveralyears

ofprotectionagainstcorrosion,evenundertheharshestofconditions:

overseasshipment,extendedstoragebeforeuse.

lWrapthevacuumpumpinaVCIfilm

lStorethevacuumpump

–ifpossible,thevacuumpumpshouldbestoredinitsoriginal

packaging,

–indoors,

–dry,

–inadust-freeand

–vibration-freeroom

Start-upofthevacuumpumpafterstorage:

lMakesurethatallprotectiveelements,stoppersoradhesivetapes

attachedbeforepreservationhavebeenremoved

lSwitchonthevacuumpumpinthesequencedescribedinthe

chapter“InstallationandCommissioning”

Installation and Commissioning

Installationprerequisites

CAUTION

Incaseofnon-compliancewiththeinstallationprerequisites,

particularlyincaseofinsufficientcooling:

Riskofdamageordestructionofthevacuumpumpandits

components!

Riskofpersonalinjury!

Theinstallationprerequisitesmustbecompliedwith.

lPleaseensurethattheintegrationofthevacuumpumpis

compliantwiththesafetyrequirementsoftheMachineDirective

2006/42/EC(concerningtheresponsibilityofthesystem’s

manufacturerintowhichthevacuumpumpistobeincorporated,

pleasealsorefertothenoteintheEU-DeclarationofConformity).

WARNING

Localregulationsregardingthemotorsandelectriccontrol

elementsmustbeobservedwheninstallingthepumpinpotentially

explosiveenvironments.Makesurebeforestart-upthatallsafety

measureshavebeenfollowed.

Localinstallation

lMakesurethattheenvironmentofthevacuumpumpisnot

potentiallyexplosive

lMakesurethatthefollowingambientconditionsarefulfilled:

–Ambienttemperature:0...40°C(32...104°F)

–Ambientpressure:atmosphere

–Humidityrange:20to95%

–Altitude:upto1000m

lMakesurethatthecoolingwaterfulfillsthefollowing

requirements:

–Temperature:10-25°C

–Overpressure:2-5bar(relative)

–Waterhardness:<5°dGH

NOTE: 1°(germandegree=1°dGH)=1,78°(frenchdegree)=1,25e

(englishdegree)=17,9mg/kgCaCO3(americanhardness)

–Minimumflowrate:3-4l/minforthestandardversion

lMakesurethatthecoolingwaterisneutralandclean

lMakesurethatthecoolingwateroutletisunpressurised

lMakesurethatthenitrogenfulfillsthefollowingrequirements:

–Overpressure:1,5bar

–Approximateflowrate:10-22l/min

lMakesurethattheambientconditionscorrespondtothe

protectionclassofthemotor(accordingtonameplate)

lMakesurethatthevacuumpumpisplacedonorfastenedtoa

horizontalsurface

lMakesurethatthevacuumpumpislevel

lMakesurethatthevacuumpumpisatleast1mawayfromany

walltoensuregoodcooling

lMakesurethatthevacuumpumpiseasilyaccessibleandthatthe

selectedinstallationsitefulfillstherequirementsfor

assembly/dismantling

lMakesurethatnotemperature-sensitiveparts(forexample,of

plastic,wood,cardboard,paper,electronicparts)comeinto

contactwiththehotsurfacesofthevacuumpump

lMakesurethattheinstallationsiteorassemblyareaisventilatedin

suchawaythatadequatecoolingofthevacuumpumpisensured

CAUTION

Thesurfacetemperatureofthevacuumpumpcanexceed50°C

whenthevacuumpumpisinoperation.

Dangerofburns!

lMakesurethatno-onecantouchthevacuumpumpaccidentally.

Ifnecessary,attachsafeguard

lMakesurethattheoilsightglasses(OSG1,2,3)areeasily

accessible

Ifoilchangesaretobemadeonsite:

uMakesurethattheoildrainandoilfillerareeasilyaccessible

Inletconnection

lMakesurethattheprotectionthatwasattachedtoprevent

penetrationofparticlesduringtransporthasbeenremovedbefore

thevacuumpumpisconnectedtothevacuumline

CAUTION

Donotputhandsintotheinletaperture.

Riskofbodydamage!

CAUTION

Theintakeofliquidsorsolidparticlescanleadtothedestructionof

thevacuumpump

Ifthesuckedgascontainsdustsorsolidforeignbodies:

uMakesurethatafilterorprotectivegratingisinstalledatthe

extractionpoint

lMakesurethatthenominaldiameteroftheintakelineisatleast

equaltothediameteroftheintakeflangeofthevacuumpumpto

preventadropintheperformanceofthevacuumpumpinthecase

ofasmallercross-section

lMakesurethatthevacuumpumpisconnectedwithleakprooflines

Installation and Commissioning

Page 10 0870532473En)

BC 1200 A

CAUTION

Whentheintakelineshavebeenconnected,makesurethatthe

systemdoesnotleak.Leakagesofdangeroussubstancesmustbe

prevented!

lMakesurethattheintakelinesareequippedwithashut-offdevice

upstreamoftheintakeflangesothattheflowofsuckedgascan

bestopped

lMakesurethattheintakelinesdonotexerciseanyforceonthe

intakeflange.Mountbellowsifnecessary

lTheinletflangehasthefollowingdimension:

– BC1200 A:DN100ISO-K

Inthecaseoflongintakelines,thelinecross-sectionshouldbelarger

thantheintakeflangetopreventadropintheperformanceofthe

vacuumpump.Ifyouhaveanydoubts,contactyourBusch

representative.

Dischargeconnection

CAUTION

Donotputhandsintotheoutletaperture.

Riskofbodydamage!

Thefollowinginstructionsforconnectiontothedischargeonlyapplyif

thesuckedgasisdischargedbythevacuumpumpintoasuitable

environment.

lMakesurethattheprotectionthatwasattachedtoprevent

penetrationofparticlesduringtransporthasbeenremovedbefore

thevacuumpumpisconnectedtothevacuumline

lMakesurethatthenominaldiameteroftheexhaustlineisatleast

equaltothediameteroftheexhaustflangeofthevacuumpump

topreventadropintheperformanceofthevacuumpumpinthe

caseofasmallercross-section

lMakesurethatthevacuumpumpisconnectedwithleakprooflines

CAUTION

Whenthedischargelineshavebeenconnected,makesurethatthe

systemdoesnotleak.Leakagesofdangeroussubstancesmustbe

prevented!

lMakesurethatthedischargelineismountedinsuchawaythat

condensatecannotpenetrateintothepump(siphontrap,gradient)

lMakesurethatnoshut-offdevicesaremountedinthedischarge

line

lMakesurethatthedischargelinesdonotexerciseanyforceonthe

dischargeflange.Mountbellowsifnecessary

lThedischargeflangehasthefollowingdimension:

–DN40ISOKF

Inthecaseoflongdischargelinesthelinecross-sectionshouldbe

largerthanthedischargeflangetopreventadropintheperformance

ofthevacuumpump.Ifyouhaveanydoubts,contactyourBusch

representative.

Coolingwaterconnection

Thecoolingwaterisgenerallyconnectedwithahose.

Thecoolingwateroutletmustbeunpressurised.

Connectiondiameter:3/8NPT

Nitrogenconnection

Thenitrogenisconnectedwithapipe(leakproofagainstoxygen).

Connectiondiameter:1/4NPT

Installation and Commissioning

0870532473En) Page 11

DimensionaldrawingBC1200 A

BC 1200 A

Electricalconnection/Checks

lMakesurethattheregulationsoftheElectromagnetic

CompatibilityDirective2014/30/EUaswellasstandardENnorms,

safetydirectivesandespeciallylocalandnationalregulationsare

observed(thisistheresponsibilityofthemanufacturerofthe

systemintowhichthevacuumpumpisintegratedaccordingtothe

DeclarationofConformity)

lMakesurethatthemainpowersupplycorrespondstothedataon

thenameplateofthemotor

lMakesurethatanoverloadcut-outaccordingtoEN60204-1is

providedforthemotor

lMakesurethatthedriveofthevacuumpumpisnotdisturbedby

anyelectricorelectromagneticinterferences.Ifyouhaveany

doubts,contactyourBuschrepresentative

Installation

Mounting

lMakesurethatthe“Necessaryinstallationinstructions”are

followed

lFastenorinstallthepumpatitsfinalinstallationsite

Electricalconnection

WARNING

Riskofelectrocution,riskofdamage.

Electricalinstallationmustbeperformedbyasuitablyqualified

electricianwhoknowsandfollowsthefollowingregulations:

- IEC364orCENELECHD384orDINVDE0100,

- IECReport664orDINVDE0110,

- VBG4orcorrespondingnationalregulationsonaccident

prevention

Powerwiringconnection

Powerwiring4poles

1 PhaseL1

2 PhaseL2

3 PhaseL3

4 Ground

lConnectthemaincableonthesocket,accordingtothefollowing

figure

CAUTION

Ifthevacuumpumpisoperatedwithamotorthatturnsinthe

wrongdirection,itcanbedestroyed,evenifthisisthecaseforonly

ashortmoment.

Makesurethatthevacuumpumpisconnectedcorrectlybefore

switchingiton.

lDeterminerotationsenseofthemotorbyusingameasuretoolor

puttingarubberplateontheinlet.

lPressonthestartbutton

lMakesurethatthevacuumpumpdrawsin

lIfnot,pushtheEmergencystopbutton

Ifthedirectionofrotationhastobechanged:

uExchangetwoofthethreefeederleads

Equipmentconnections(withoptions)

TheinformationconcerningtheuseoftheBuschPLCandtheBusch

LCDcanbefoundintheOperationandMaintenancemanual(Art.No.

0870758077).

Connectionofthelines/pipes

lConnecttheintakelines

lConnectthedischargelines

lMakesurethatallcaps,safeguardsandsimilarcoversaremounted

lMakesurethattheinletandoutletforthecoolingairarenot

coveredorclosedandthattheflowofcoolingairisnotimpairedin

anyway

Oilfilling

TheCOBRABC1200 Avacuumpumpsaregenerally dispatchedwith

oilalreadyinthevacuumpump.Beforevacuum pumpfirststartup,

controltheoillevel.Intheeventofabsenceofone ortheotherof

theselubricants,pleasecarryoutthefilling(seethe chapter“Oil

types”forinformationontherecommendedoils).

Installation and Commissioning

Page 12 0870532473En)

1 LCDserialwiring(RJ45),LCD1

2 LCDserialwiring(RJ45),LCD2

3 PCserialwiring(9poles)(option)

4 USBconnection

5 CustomerNetwork,CommunicationmodbusRTURS232

6 Ethernetnetworkconnection(BuschMonitoringSystem)

(option)

7 Interfaceconnection(50poles)(option)

8 PIDInterface(9poles)(option)

BC 1200 A

Power connector on vacuum pump rear side

Phase L1 Phase L2

Phase L3

Ground

Lock

NW 0090 A WY 1251 B

1,4

Art. No.

NW 0090 A

1251

NOTE:

CAUTION

NOTE

CAUTION

process.

Application

WARNING

conditions.

Installation and Commissioning

En) Page 13

Oil drain plug (ODP)Oil drain plug (ODP)

Oil sight glass

Oil ﬁll plug (OFP)

Oil sight glass (OSG)

(OSG)

BC 1200 A

Oil drain plug (ODP) Oil sight glass (OSG)

Oil sight glass (OSG)

Oil ﬁll plug (OFP)

WARNING

Whenusingtoxic,inflammableand/orexplosivegases,makesure

thatthesystemcorrespondsindesigntoapplicablelocaland

nationalsafetyregulationsandthatallapplicablesafetymeasures

arefollowed.

Allproduct-specificsafetyregulationsmustbeobserved.

Solidparticlesmustnotgetintothevacuumpump.Proceduralerrors

canresultinthepumpsuckinginacertainquantityofliquid.Ifthe

pumphassuckedinliquid,ashortdryingtimeisnecessaryattheend

oftheprocedure.

Theallowedmaximuminletgastemperaturedependsontheinlet

pressureandthetypeofgas:thelowertheinletpressure(Pa),the

higherthedrawngastemperature(TGas)canbe.

Thefollowingindicativevaluesforaircanbeconsidered:

– Pa>50mbar,TGas<80°C

–Pa<50mbar,TGas<200°C

Thevacuumpumpisintendedforuseinapotentiallynon-explosive

environment.

Asfarastemperatureisconcerned,thevacuumpumpissuitablefor

evacuationofa300literstank.Thevacuumpumpisnotsuitablefor

continuousdutyatapressuremoreorequalthan150(hPa)mbar.

Caution,theoperatingcycleof150(hPa)mbarmustnotexceedmore

than5min.Forotherapplications,contactyourBuschrepresentative.

- Maximuminletpressure:1bar(abs).

-Withpumprunningatfullspeed,donotexposetoinletpressure

> 300(hPa)mbar.

Thevacuumpumpistightdowntoultimatepressure.

CAUTION

Thesurfacetemperatureofthevacuumpumpcanexceed50°C

whenthevacuumpumpisinoperation.

Dangerofburns!

Thevacuumpumpmaynotbetouchedwhenitisinoperation.If

touchingthepumpisunavoidable,waituntilthesurface

temperaturehascooleddownorwearprotectivegloves.

CAUTION

Theintensityofthenoiseofthevacuumpumpishigherwithina

certainareaofthepump.

Riskofhearingdamage.

Usersmustwearearprotectionwhenspendingalongerperiodof

timeinthevicinityofanon-insulatedvacuumpump.

CAUTION

TheCOBRABC1200 A vacuumpumpscouldbedelivered

withoutoil,withoutcoolingwater.

Operationwithoutoilwillresultindamagetothevacuumpump!

Thevacuumpumpmustremaininahorizontalpositionwhenit

has beenfilledwithoil.

CAUTION

TheCOBRABC1200 Avacuumpumpsarealwaysdelivered

withoutoil,withoutcoolingwater.

Operationwithoutcoolantswillresultindamagetothevacuum

pump!

CAUTION

Thecoolingwaterflow,whichischeckedbytheflowmeterCWM,

mustbeatleast4-5l/min.

lMakesurethatallcaps,safeguardsandsimilarcoversaremounted

lMakesurethatthesafeguardsareswitchedon

lMakesurethattheinletandoutletforthecoolingairarenot

coveredorclosedandthattheflowofcoolingairisnotimpairedin

anyway

lMakesurethatthesystemdoesnotleak.Leakagesofdangerous

substancesmustbeprevented

lMakesurethatthe“Necessaryinstallationinstructions”are

followedandespeciallythatadequatecoolingisensured

Thefollowingmustbenotedwhenthepumpisshutdownforalonger

periodoftime:

CAUTION

Ifthereisariskoffrost,allthecoolingwatermustbedrainedoutof

thevacuumpumpifthepumpisshutdownforalongerperiodof

time!

–Drainthecoolingwater

uPullofftheconnectionsfortheinletandoutletofthecooling

water

uDrainthecoolingwatercompletely

uIfnecessary,drainthecoolingwaterwiththehelpof

compressedairtopreventanyriskoffrostorcorrosion

Switchingthevacuumpumpon/off

Firststart-upofthesystem

lMakesurethatthe“Necessaryinstallationinstructions”are

followed

Ifthesystemisequippedwithasolenoidgatevalveinthecooling

watercircuit:

uOpenthesolenoidgatevalve

lMakesurethatthecoolingwaterflowissetcorrectlywiththe

valveCWR:

–Thecoolingwatercircuit(*standard)isusedtocoolthevariators,

themotorsandtheDPandMBcylinders.Theregulatingvalve CWRof

thecoolingwaterflowispresetat4-5l/min.

lMakesurethatthenitrogenflowissetcorrectly

–Nitrogenflowinjectedinthemiddlehole(8)ispresetat2l/min

andcanbeadjustedwithvalveDGR2.Nitrogenflowinjectedin

theholeoncylinderendplatesideispresetat10l/minandcanbe

adjustedwithvalveDGR1.

lSwitchonthevacuumpump

lMakesurethatthesystemdoesnotleak

Ifthesystemisequippedwithasolenoidgatevalveattheintake:

CAUTION

Donotopengatevalveifboosterisrunningatfullspeed(90Hz).

Use"AutomaticLoadLock"modeor"ExternalSignal"ontool

interfacetostart/stopboster(refertoBuschPLCmanual).

Riskofprimarypumpdamage.

uOpenthesolenoidgatevalve

Switchingthesystemoff

Ifthesystemisequippedwithasolenoidgatevalveattheintake:

uClosethesolenoidgatevalve

Installation and Commissioning

Page 14 0870532473En)

BC 1200 A

lSwitchoffthevacuumpump

lShutoffthenitrogensupply

lShutoffthecoolingwatersupply

Ifthesystemisequippedwithasolenoidgatevalveinthecooling

watercircuit:

uClosethesolenoidgatevalve

lMakesurethatthesystemiscurrentless

Maintenance

DANGER

Incasethevacuumpumphasconveyedgasesthathavebeen

contaminatedwithforeignmaterialsthataredangeroustohealth,

theoilandcondensateswillalsobecontaminated.

Theseforeignmaterialscaninfiltratethepores,recessesandother

internalspacesofthevacuumpump.

Dangertohealthwhenthevacuumpumpisdismantled.

Dangertotheenvironment.

Alwayswearprotectiveclothingwhencarryingoutmaintenance

work.

Beforeanymaintenancework,theinletandoutletpipingaswell

asthevacuumpumpitselfmustbeflushedwithnitrogen.

CAUTION

Onlyauthorizedpersonnelmaycarryoutdismantlingworkonthe

vacuumpump.Beforeworkbegins,theoperatorofthevacuum

pumpmustfillinaformora“DeclarationofContaminationof

VacuumEquipmentandComponents”thatprovidesinformationon

possibledangersandappropriatemeasures.

Ifthisformhasnotbeenfilledincompletelyandsigned,the

vacuumpumpmaynotbedismantled.

CAUTION

Beforemaintenanceworkisstarted,asafetyareaofatleast610

[mm] aroundthemachinemustbesetup.

CAUTION

Thesurfacetemperatureofthevacuumpumpcanexceed50°C

whenthevacuumpumpisinoperation.

Dangerofburns!

Beforestartingmaintenancework,makesurethatthevacuumpump

hasbeenswitchedoffandthatitcannotbeswitchedonagain

accidentally.Followtheshutdownprocedureinthesection“Lock

Out/TagOutprocedure”:

–stopthepumpwiththeLCDcontrol(pressonSTOPbutton

during10s)

–pressonemergencystopbutton

–switchoffthemaincircuitbreaker

–switchoffthecustomer’spowersupply

–switchoffthewaterandnitrogenquickconnections(inletfirst,

thenoutlet)

–putthelabelorwarningboard“Maintenanceprocessing”onor

nexttothepump

CAUTION

Theoiltemperaturecanreachavalueof100°C!

Dangerofburns!

lMakesurethattheoilcircuithasbeenemptiedbeforemovingthe

vacuumpump

lMakesurethattherearenocleaningtoolsinthepumpanymore

accordingtolocalandnationalregulations

Beforepullingoffthedifferentconnections,makesurethattheintake

andexhaustlinesofthevacuumpumpcorrespondtoatmospheric

pressure

Whenthemaintenanceworkhasbeenfinished,followtheprocedure

“SafetyLockoutprocedure”:

–takeoffthelabelorwarningboard“Maintenanceprocessing”

–checktheoillevelaccordingtothechapter“Checkingtheoil

level”

–switchonthemaincircuitbreaker

–releasetheemergencystopbutton

–switchonthewaterandnitrogenquickconnections(outletfirst,

theninlet)

–makesurethatthe“Necessaryinstallationinstructions”are

followed

–startthepumpwiththeLCDcontrol(pressonSTARTbutton)

Maintenanceprogram

NOTE:Themaintenanceintervalsdependalotontheindividual

operatingconditions.Theintervalsgivenbelowshouldbeconsidered

initialguidelineswhichoughttobeshortenedorextendedas

appropriate.Inparticularlyheavydutyoperationsuchashighdust

loadsintheenvironmentorintheprocessgas,itmaybecome

necessarytoshortenthemaintenanceintervalssignificantly.

Weekly:

lChecktheoillevelandthecolouroftheoil(see“Checkingthe

oil”)

lCheckthecoolingwaterflow(see“Checkingthecoolingwater”)

lCheckthenitrogenflow(see“Checkingthenitrogen”)

lInspectthevacuumpumpforoilleaks-ifthereareleaks,repair

thevacuumpump(Busch)

lInspectthevacuumpumpforleaksofcoolingwater-ifthereare

leaks,repairthevacuumpump(Busch)

Monthly:

Inthecaseofoperationinadustyenvironment:

uMakesurethattheoperatingroomiscleanandfreeofdust;

cleanifnecessary

lMakesurethatthevacuumpumphasbeenswitchedoffandthat

itcannotbeswitchedonagainaccidentally

lChecktheelectricalconnections

lCarryoutavisualinspectionofthevacuumpump

Yearly:

lMakesurethatthevacuumpumphasbeenswitchedoffandthat

itcannotbeswitchedonagainaccidentally

Iftheintakeisequippedwithasieve:

uCheckthesieveattheintakeandcleanifnecessary

lCheckthemeasuringandsafetyequipmentforworkingorder

Ifthedischargeisequippedwithasilencer:

uBleedthecondensationofthesilencerthroughthepurge

system

Ifthedischargeisequippedwithaleak-protectionnon-returnvalve:

Maintenance

0870532473En) Page 15

BC 1200 A

uCleantheleak-protectionnon-returnvalve

lChecktheventilatorfilter(RF),cleanifnecessary

Ifthecoolingwaterlineisequippedwithafilter:

uCheckthefilterandcleanorreplaceifnecessary

lCheckthesealsandreplaceifnecessary

lChecktheintakeanddischargelinesandcleanorreplaceif

necessary

Every16000hoursofoperation,atthelatest

after4years:

lDraintheoil(see“Drainingtheoil”)

lAmaininspectionofthevacuumpump(Busch)

LockOut/TagOutprocedure

lStopthepumpwiththeLCDcontrol(pressonSTOPbuttonduring

10s)

lPressonemergencystopbutton

lSwitchoffthemaincircuitbreaker

lSwitchoffthecustomer’spowersupply

lSwitchoffthewaterandnitrogenquickconnections(inletfirst,

thenoutlet)

lPutthelabelorwarningboard“Maintenanceprocessing”onor

nexttothepump

SafetyLockoutprocedure

lTakeoffthelabelorwarningboard“Maintenanceprocessing”

lChecktheoillevelaccordingtothechapter“Checkingtheoil

level”

lSwitchonthemaincircuitbreaker

lReleasetheemergencystopbutton

lSwitchonthewaterandnitrogenquickconnections(outletfirst,

theninlet)

lMakesurethatthe“Necessaryinstallationinstructions”are

followed

lStartthepumpwiththeLCDcontrol(pressonSTARTbutton)

Checkingtheoil

Checkingtheoillevel

lMakesurethatthevacuumpumphasbeenswitchedoffandthat

itcannotbeswitchedonagainaccidentally

lIndicationoftheoillevelonthevariousoilsightglasses

IftheoilleveldoesnotreachtheMINmarking:

uTopupwithoil(see“Refillingoil”)

IftheoillevelexceedstheMAXmarking:

uCheckthecondensatedrain

lDraintheoil(see“Drainingtheoil”)

Refillingoil

NOTE:Oildoesnotnormallyhavetoberefilledoutsidethe

recommendedoilchangeintervals.Adropintheoillevelindicatesa

fault(see"Alarmsandwarnings"->BuschPLCandBuschLCD).

CAUTION

Onlyfillinoilthroughtheoilfilleropening.

CAUTION

Dangerofburnswhentheoilfillercapisopen.

Dangerofinjurieswhentheoilfillercapisnotscrewedonproperly.

Onlyunscrewtheoilfillercapwhenthevacuumpumphasbeen

switchedoff.

Thevacuumpumpmayonlybeswitchedonwhentheoilfillercap

isproperlyclosedandtight.

Werecommendsubmittingthepumptoaleakageratetestinorder

toensurethepumpisleaktight.

lMakesurethatthevacuumpumphasbeenswitchedoffandthat

itcannotbeswitchedonagainaccidentally

lUnscrewtheoilfillercap(OFP)

lFillinoiluptothemiddleoftheoilsightglass

lMakesurethattheoillevelliesbetweentheMINandMAX

markingsontheoilsightglasses

lMakesurethatthesealsofthefillercaparenotdamagedandthat

theysitproperly.Replacethemifnecessary

lScrewonthefillercapagain

Checkingthecolouroftheoil

NOTE:Theoilmustbeclearandtransparent.Apermanentmilky

colourisanindicationforcontaminationbyforeignbodies.Adark

colourisanindicationforoilthathasbeenchemicallyalteredor

contaminatedbyforeignbodies.

WARNING

Darkcoloredoilmayindicateahazardouspumpconditionwhich

couldcausepersonalinjury.

Ifdarkoilsimilartotheexampleshownisobserved,youhaveto

contacttheBuschCustomerServicewithoutdelay.

Oilchange

DANGER

Ifthevacuumpumphaspumpedgasesthatwerecontaminated

withforeignbodiesthatarehazardoustohealth,theoilisalso

contaminatedwiththeseforeignbodies.

Thereisahealthhazardwhenchangingcontaminatedoil.

Thereisalsoadangertotheenvironment.

Wearprotectiveclothingwhenreplacingcontaminatedoil.

Contaminatedoilmustbetreatedspeciallyandmustbedisposed

ofaccordingtoapplicableregulations.

Maintenance

Page 16 0870532473En)

BC 1200 A

Drainingusedoil

NOTE:Afterswitchingoffthevacuumpumpatnormaloperating

temperaturewaitnomorethan20minutesbeforetheoilisdrained.

lMakesurethatthevacuumpumpisswitchedoffandcannot

accidentallybeswitchedonagain

lMakesurethatthevacuumpumpisventedtoatmospheric

pressure

lPutadraintrayunderneaththeoildrainplugs(ODP)

lRemovetheoildrainplugs(ODP)

lCarefullyremovethedrainplugs

lDraintheoil

lBecauseofwearandtearonthesealsreplacethecurrentdrain

plugswithnewones

Whentheoilflowhasstopped:

uClosetheoildrainplugs(ODP)

lSwitchonthevacuumpumpforafewseconds

lMakesurethatthevacuumpumpisswitchedoffandcannot

accidentallybeswitchedonagain

lRemovetheoildrainplugsagainanddrainanyremainingoil

lCheckthatnometalswarfstickstothemagnetofthedrainplug,

cleanifnecessary

lRefittheoildrainplugsandtightenup

lDisposeoftheusedoilincompliancewithapplicableregulations

CAUTION

Becausetheendsofthedrainplugsaremagnetic,metalswarfcan

sticktothem.Alwayscleanawaythisswarfwhenremovingthe

drainplugs.

Becauseofwearandtearoftheseals,itisrecommendedtoreplace

thedrainplugswhenevertheoilischanged.

Fillinginnewoil

lPreparethequantityofoilneeded(see“Oiltype/quantity”)

WARNING

Theuseofchemicallycontaminatedorpollutedoilcanleadto

hazardouspumpconditionswhichcouldcausepersonalinjury.

NOTE:Thequantityofoilspecifiedintheinstallationhandbookisof

informativenatureonly.Checktheoillevelwiththehelpofthevarious

oilsightglassesonthevacuumpump.

lMakesurethatthedrainplugshavebeenfittedproperlyandthat

theydonotleak

CAUTION

Onlyfillinoilthroughtheoilfilleropening.

lUnscrewtheoilfillercap(OFP)

lFillinoiluptothemiddleoftheoilsightglass

lMakesurethattheoillevelliesbetweentheMINandMAX

markingsontheoilsightglasses

lMakesurethatthesealsofthefillercaparenotdamagedandthat

theysitproperly.Replacethemifnecessary

lScrewonthefillercapagain

Checkingthecoolingwater

Checkingthecoolingwaterflow

lCheckthecoolingwaterflowregularly

Iftheflowdrops,checkforleaks

uMakesurethatthespecificationsofthecoolingwaterare

followed

Checkingthenitrogen

Checkingthenitrogenflow

lCheckthenitrogenflowregularly

Iftheflowdrops,checkforleaks

uMakesurethatthespecificationsofthenitrogenarefollowed

Checkingthecurrentconsumption

lCheckthecurrentintensityofthemotor

Anincreasedintensityisanindicationforafault(see

“Troubleshooting”)

Checkingthesilencer(accessory)

lMakesurethatthecondensatedoesnotcollectattheexhaustof

thevacuumpump

lDrainthecondensateandcollectitinacontainer

lDisposeofthecondensateaccordingtoapplicableenvironmental

protectionregulations

lCheckthesilencerregularlyandcleanitifnecessary

Checkingtheleak-protection

non-returnvalve(accessory)

lChecktheleak-protectionnon-returnvalveregularlyandcleanitif

necessary

CAUTION

Wearprotectiveclothingwhencarryingoutmaintenanceworkon

thesilencerandleak-protectionnon-returnvalve.

Therecouldstillberesiduesofcontamination.

Overhaul

CAUTION

Inappropriatemaintenanceworkonthevacuumpumpcandamage

thepump.

Dangerofexplosion!

Ifrequirementsarenotmet,thevacuumpumpmaynotbeswitched

on!

Shouldworkexceedthedismantlingworkdescribedinthis

handbook,itmayonlybecarriedoutbyauthorizedpersons.

Overhaul

0870532473En) Page 17

BC 1200 A

DANGER

Incasethevacuumpumphasconveyedgasesthathavebeen

contaminatedwithforeignmaterialsthataredangeroustohealth,

theoilandcondensateswillalsobecontaminated.

Theseforeignmaterialscaninfiltratethepores,recessesandother

internalspacesofthevacuumpump.

Dangertohealthwhenthevacuumpumpisdismantled.

Dangertotheenvironment.

Priortoshipping,thevacuumpumpmustimperativelybe

decontaminatedandthedegreeofcontaminationmustbe

documentedinadeclarationofdecontamination(“Declarationof

ContaminationofVacuumEquipmentandComponents”),which

canbedownloadedfromwww.buschvacuum.com.

Buschservicewillonlyacceptvacuumpumpsthatcomewitha

completelyfilledinandlegallybindingsignedform.

Removalfromservice

Temporaryremovalfromservice

Beforedisconnectingtheintakeandexhaustlinesandswitchingoffthe

coolingwaterandnitrogenlines,makesurethatthelineshave

adjustedtoatmosphericpressure

Recommissioning

lMakesurethatthevariousprotectiveelements,stoppersor

adhesivetapeshavebeenremoved

lSwitchonthevacuumpumpbyfollowingtheproceduredescribed

inthechapter“InstallationandCommissioning”

DismantlingandDisposalofthe

vacuumpump

DANGER

Incasethevacuumpumphasconveyedgasesthathavebeen

contaminatedwithharmfulforeignmaterialwhichareharmfulto

health,theoilandthecondensateswillalsobecontaminatedwith

harmfulforeignmaterial.

Theseforeignmaterialscaninfiltratethepores,recessesandother

internalspacesofthevacuumpump.

Dangertohealthduringdismantlingofthevacuumpump.

Dangertotheenvironment.

Duringdismantlingofthevacuumpumpprotectiveequipmentand

clothingmustbeworn.

Priortoshipping,thevacuumpumpmustimperativelybe

decontaminatedandthedegreeofcontaminationmustbe

documentedinadeclarationofdecontamination(“Declarationof

Decontamination”),whichcanbedownloadedfrom

www.buschvacuum.com.

Usedoilandcondensatesmustbedisposedofseparatelyin

compliancewithapplicableenvironmentalregulations.

Whentheproducthasreachedtheendofitslifetime:

–decontaminatethevacuumpump

CAUTION

Onlyauthorizedpersonnelmaycarryoutdismantlingworkonthe

vacuumpump.Beforeworkbegins,theoperatorofthevacuum

pumpmustfillinaformora“DeclarationofDecontamination”that

providesinformationonpossibledangersandappropriatemeasures.

Ifthisformhasnotbeenfilledincompletelyandsigned,the

vacuumpumpmaynotbedismantled.

–draintheoil

udisposeoftheoilaccordingtolocalenvironmentalprotection

regulations

–begindismantlingthevacuumpump

CAUTION

Duringdismantlingofthevacuumpumpprotectiveequipmentand

clothingmustbeworn

udisposeofthevacuumpumpasscrapmetal

–disposeoftheindividualpartsofthemachineaccordingtolocal

regulations

AlithiumbatteryispresentinsidethePLC:

–eliminatethelithiumbatteryaccordingtolocalandnational

regulationsinplace,relatingtoenvironment

Removalfromservice BC 1200 A

Page 18 0870532473En)

Oiltype/quantity

Oiltype

lMakesurethattheoiltypecorrespondstospecification:

–BuschYLC250B,Art.No.0831131400(0,5l @1kg)

WARNING

Theuseofchemicallycontaminatedorpollutedoilcanleadtohazardouspumpconditionswhichcouldcausepersonalinjury.

Oilquantity

Thequantityofoilspecifiedinthefollowingtableisofinformativenatureonly.Checktheoillevelwiththehelpofthevariousoilsightglasseson

thevacuumpump.

Pumptype DPpump(liters) MBpumpmotorside(n°2-liters) MBpumpgearside(n°1-liters)

BC1200 A 0,12l 0,6l 0,8l

BC1001 G Oiltype/quantity

0870532473 Page 19

Technicaldata

Technicaldata BC1200 A

Effectivesuctioncapacity m3/h(cfm) 1200(706

Ultimatepressure Torr

mbar 2x10-3

3x10-3

Nominalmotorrating DP (50Hz) kW 1,5

Nominalmotorrating MB (90Hz) kW 4.0

Electricpowercapacityatultimate

pressure kW

kWidlemode 1.9

1.3

Nominalmotorspeed DP min-1 3000

Nominalmotorspeed MB min-1 5400

Noiselevel(ENISO2151)*dB(A) <62

Ambienttemperature °C

°F 0-40

32-104

Maximalecounterpressure Discharge bar 0.2

Coolingwaterrequirement l/min min.4.0-5.0

Coolingwaterpressure bar/ DP2...5

Nitrogenrequirement l/min 0-70

Nitrogenoverpressure bar 1.5

Oilquantity l 1.52

Weight kg 360

* withsilenceratexhaust

Technicaldata

Page 20 0870532473En)

BC 1200 A

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Busch COBRA BC 0601–1200 A/G User manual