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Instruction Manual COBRA NX 0450-0650 A WCV_EN_en

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Product Description

IN, IS

OUT

PMR

BGR

MTB

CWD

OSG

BGF

OFP

CWO

BGC

BGM

ODP

OFP

OSG

CWD

ODP

CWI

OUT

Description

Suction connection (Inlet)

OUT

Discharge connection (Outlet)

BGC

Barrier gas connection

BGF

Barrier gas flow meter

BGM

Barrier gas manometer

BGR

Barrier gas pressure regulator

Condensate drain

CWD

Cooling water drain plug

CWI

Cooling water inlet

CWO

Cooling water outlet

Eye bolt

Gas ballast valve

Inlet screen

Magnetic plug

MTB

Motor terminal box

Nameplate

ODP

Oil drain plug

OFP

Oil fill plug

OSG

Oil sight glass

PMR

Plug for manual rotation of rotors

Silencer

Temperature switch

NOTE

Technical term.
In this instruction manual, we consider that the term ‘machine’ refers to the ‘vacuum pump’.

Содержание COBRA NX 0450 A

Страница 1: ...Get technical data instruction manuals service kits COBRA Dry Screw Vacuum Pumps NX 0450 A NX 0650 A Water Cooled Version WCV Instruction Manual 0870565358 B0008_en US Original instructions 11 3 2022...

Страница 2: ...nnection 13 5 2 4 Barrier Gas System Connection Optional 14 5 3 Filling Oil 15 6 Electrical Connection 17 6 1 Machine delivered without Variable Speed Drive 17 6 2 Machine delivered with a Variable Sp...

Страница 3: ...Table of Contents Instruction Manual COBRA NX 0450 0650 A WCV_EN_en 3 40 16 UK Declaration of Conformity 38...

Страница 4: ...to state of the art methods Never theless residual risks may remain as described in the following chapters and in accordance with the chapter Intended Use 6 This instruction manual highlights potenti...

Страница 5: ...gas flow meter BGM Barrier gas manometer BGR Barrier gas pressure regulator CD Condensate drain CWD Cooling water drain plug CWI Cooling water inlet CWO Cooling water outlet EB Eye bolt GB Gas ballast...

Страница 6: ...id in the compression chamber 2 2 Intended Use WARNING In case of foreseeable misuse outside the intended use of the machine Risk of injuries Risk of damages to the machine Risk of damages to the envi...

Страница 7: ...water temperature of the machine The temperature switch has two switch points Switch point 1 T1 Early warning Switch point 2 T2 Trip the machine must be stopped 2 4 3 Sealing Systems The machine is eq...

Страница 8: ...filled with oil can cause large quantities of oil to ingress into the cylinder Drain the oil prior to every transport or always horizontally transport the machine To find out the weight of the machine...

Страница 9: ...all apertures with adhesive tape or reuse provided caps If the machine is to be stored for more than 3 months Wrap the machine in a corrosion inhibiting film Store the machine indoors dry dust free a...

Страница 10: ...ion space or location is vented such that sufficient cooling of the ma chine is provided Make sure that cooling air inlets and outlets of the motor fan are not covered or obstructed and that the cooli...

Страница 11: ...e larger line sizes in order to avoid a loss of effi ciency Seek advice from your Busch representative 5 2 1 Suction Connection WARNING Unprotected suction connection Risk of severe injury Do not put...

Страница 12: ...ed air source Connection size s At the machine discharge connection G2 for NX 0450 A horizontal orientable 180 G3 for NX 0650 A horizontal orientable 180 DN63 ISO K DIN 28404 for NX 0450 A vertical wi...

Страница 13: ...wing requirements Supply capacity l min 4 10 for NX 0450 A 6 14 for NX 0650 A Water pressure bar 1 6 Supply temperature C 10 30 Required pressure differential across supply and return bar 1 To reduce...

Страница 14: ...able Diameter of the orifice Differential water pressure NX 0450 A NX 0650 A No calibration n a 1 2 bar 4 mm at the cooling water outlet 1 2 bar 2 3 bar 4 mm at the cooling water inlet and outlet 2 6...

Страница 15: ...ded flow rate SLM standard li ter per minute NX 0450 A 10 15 NX 0650 A 15 20 Air quality only for air Acc to ISO 8573 1 Class 5 4 4 5 3 Filling Oil NOTICE Use of an inappropriate oil Risk of premature...

Страница 16: ...n When the oil filling is achieved Write down the oil change date on the sticker Last oil change __ __ ____ Oil type see nameplate Change interval see instruction manual If there is no sticker part no...

Страница 17: ...e from Busch Make sure that the EMC of the machine is compliant with the requirements of your supply net work system if necessary provide further interference suppression EMC of the machine see EU Dec...

Страница 18: ...tion according to EN 60204 1 for the motor Connect the protective earth conductor Electrically connect the motor NOTICE The motor frequency is below 20 Hz Risk of damage to the machine The motor nomin...

Страница 19: ...rive is compatible with the data on the nameplate of the variable speed drive If the machine is equipped with a power connector install a residual current protective device to protect persons in case...

Страница 20: ...4 4 Star connection multi voltage motor with 12 pins high voltage 4 4 4 Delta connection multi voltage motor with 12 pins middle voltage 4 4 4 NOTICE Incorrect direction of rotation Risk of damage to...

Страница 21: ...witch any two of the motor phase wires 6 4 Electrical Connection of the Monitoring Devices NOTE In order to prevent potential nuisance alarms Busch recommends that the control system is configured wit...

Страница 22: ...Risk of damage to the machine Do not lubricate the compression chamber of the machine with oil or grease Make sure that the installation conditions see Installation Conditions 10 are met Turn on the w...

Страница 23: ...em dry compressed air is connected Check the volume flow on the barrier gas flow meter BGF see Barrier Gas System Connection Optional 14 Make sure that the air gas ballast GB is mounted and open If th...

Страница 24: ...min utes after disconnection of the electrical supply Always ensure by using a suitable multimeter that no voltage is present on any drive power termi nals prior to commencing any work DANGER Live wi...

Страница 25: ...ual operating conditions The intervals given below are considered as starting values which should be shortened or extended as appropri ate Particularly harsh applications or heavy duty operation such...

Страница 26: ...27 Clean the magnetic plugs MP Every 25000 hours or after 4 years Have a major overhaul on the machine contact Busch 8 2 Oil Level Inspection Shut down the machine When the machine is stopped wait 1 m...

Страница 27: ...llast Filter Optional 1 2 Description 1 Use a 36 mm wrench 2 Use compressed air and wear protec tive eyewear and mask 8 5 Oil Change NOTICE Use of an inappropriate oil Risk of premature failure Loss o...

Страница 28: ...8 Maintenance 28 40 Instruction Manual COBRA NX 0450 0650 A WCV_EN_en 1 Description 1 Magnetic plug 1 Description 1 Magnetic plug For oil type and oil capacity see Technical Data and Oil 36...

Страница 29: ...0 When the oil filling is achieved Write down the oil change date on the sticker Last oil change __ __ ____ Oil type see nameplate Change interval see instruction manual If there is no sticker part no...

Страница 30: ...Any dismantling of the machine that goes beyond anything that is described in this manual should be done by Busch authorized technicians In case of the machine having conveyed gas that was contaminate...

Страница 31: ...art up Disconnect the power supply Turn off the water supply If the machine is equipped with a barrier gas system Close the barrier gas supply Vent the connected lines to atmospheric pressure Drain th...

Страница 32: ...Risk of premature failure Loss of efficiency The exclusive use of Busch genuine spare parts and consumables is recommended for the correct functioning of the machine and to validate the warranty There...

Страница 33: ...suction connection The temperature switch TS reached the switch point Let the machine cool down See problem The machine runs too hot The motor is defective Replace the motor The machine does not reac...

Страница 34: ...the permitted am bient temperature see Technical Data Temperature of the process gases at the inlet too high Observe the permitted gas inlet temperature see Tech nical Data Oil level too low Top up o...

Страница 35: ...2 5 15 Nominal motor speed 50Hz 60Hz min 1 3000 3600 Noise level ISO 2151 50Hz 60Hz dB A 65 70 71 75 Ambient temperature range C 5 50 Max allowable counter pressure at the discharge hPa mbar rel 200 M...

Страница 36: ...14 Oil 36 40 Instruction Manual COBRA NX 0450 0650 A WCV_EN_en 14 Oil VSC 100 ISO VG 100 Part number 1 L packaging 0831 168 356 Part number 5 L packaging 0831 168 357...

Страница 37: ...n hazardous substances in electrical and electronic equipment incl all related applicable amend ments and comply ies with the following designated standards that have been used to fulfill those provis...

Страница 38: ...016 Restriction of the use of certain hazardous substances in Electrical and Electronic Equipment Regulations 2021 and comply ies with the following designated standards that have been used to fulfill...

Страница 39: ...Instruction Manual COBRA NX 0450 0650 A WCV_EN_en 39 40 Notes...

Страница 40: ...sence In every country highly competent local personnel delivers custom tailored support backed by a global network of expertise Wherever you are Whatever your business We are there for you Busch comp...

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