BUSCH COBRA ATEX NC 0100-0300 B Instruction Manual
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BUSCH COBRA ATEX NC 0100-0300 B Instruction Manual

Dry screw vacuum pumps water-cooled version
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Instruction Manual
COBRA ATEX
Dry Screw Vacuum Pumps
NC 0100-0300 B (water-cooled version)
Ateliers Busch S.A.
Zone industrielle, 2906 Chevenez
Switzerland
0870203597/-0001_en / Original instructions / Modifications reserved
11/12/2019

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  • Page 1 Instruction Manual COBRA ATEX Dry Screw Vacuum Pumps NC 0100-0300 B (water-cooled version) Ateliers Busch S.A. Zone industrielle, 2906 Chevenez Switzerland 0870203597/-0001_en / Original instructions / Modifications reserved 11/12/2019...

  • Page 2: Table Of Contents

    Table of Contents Table of Contents 1 Safety........................... 4 2 Product Description ..................... 5 2.1 Operating Principle....................8 2.2 Application ......................8 2.3 Start Controls ....................... 9 2.4 Standard Features....................9 2.4.1 Thermometer.....................9 2.4.2 Sealing Systems ..................9 2.4.3 Barrier Gas System ..................9 2.4.4 Nitrogen Panel...................9 2.5 Accessories ......................
  • Page 3 Table of Contents 5.9.6 Wiring Diagram Level Switch ..............36 5.9.7 Wiring Diagram Pressure Switch (With Gas Lubricated Double Mechanical Seals Only)................5.10 Electrical Connection of the Flame Arrester Bypass (Optional) ......36 5.10.1 Wiring Diagram Limit Switch ..............36 5.10.2 Wiring Diagram Solenoid Valve ..............37 5.11 Flowchart ......................

  • Page 4: Safety

    Safety Prior to handling the machine, this instruction manual should be read and understood. If anything needs to be clarified, please contact your Busch representative. Read this manual carefully before use and keep for future reference. This instruction manual remains valid as long as the customer does not change anything on the product.

  • Page 5: Product Description

    Product Description | 2 Product Description NC 0100-0300 C ATEX 1G(i)/2G(o) (only the obligatory accessories are illustrated) FME, FS-/0501 ODP, MP PSA or PS+ IN, FA /0301 TSA+/0101 GC, NIF TSA+/0102 TSA+/0103 OUT, FA OSG ODP, MP Cooling liquid drain valve Cooling liquid fill plug Cooling liquid pump Cooling water drain plug...
  • Page 6 2 | Product Description NC 0100-0300 C ATEX 2G(i/o) (only the obligatory accessories are illustrated) FME, SA+/0701 FS-/0501* ODP, MP * recommended PSA or PS+ TSA+/0102 /0301 GC, NIF OFP OSG ODP, MP TSA+/0103 MTB DA Cooling liquid drain valve Cooling liquid fill plug Cooling liquid pump Cooling water drain plug...
  • Page 7 Product Description | 2 NC 0100-0300 C ATEX 3G(i/o) (only the obligatory accessories are illustrated) ODP, NC 0200 B with silencer and gas ballast valve (Options) TSA+/0102 OFP OSG ODP, MP Condensate drain Cooling liquid drain valve Cooling liquid fill plug Cooling liquid pump Cooling water drain plug Cooling water inlet...

  • Page 8: Operating Principle

    (NP), see Explanation of ATEX Classification [► 11]. Conveying of other media leads to an increased thermal and/or mechanical load on the machine and is permissible only after a consultation with Busch. 8 / 60 0870203597_NC0100-0300B_WCV_Ex_-0001_IM_en...

  • Page 9: Start Controls

    (NP), see Explanation of ATEX Classification [► 11]. In case Busch delivered the machine without motor and coupling, the following must be observed: •...

  • Page 10: Accessories

    2 | Product Description – The dilution gas ballast prevents the formation of condensates or dilutes them, de- pending on the application. The nitrogen is fed into the cylinder. – The purge gas system fitted at the inlet flange allows to flush the machine after use or during operation.

  • Page 11: Ptfe Shaft Seals

    Product Description | 2 – Gas lubricated double mechanical seals on the motor side and oil lubricated single mechanical seals on suction side. The gas lubricated double mechanical seals require a pressure switch in order to monit- ors if the gas pressure drops below the minimum allowable pressure. See Wiring Dia- gram Pressure Switch (With Gas Lubricated Double Mechanical Seals Only) [► 36].

  • Page 12: Safety Concept

    • Make sure that the recommendations described in this manual correspond to the ATEX marking written on the nameplate (NP). • If anything needs to be clarified, please contact your Busch representative. The safety concept is based on the prevention of sparks and excessive temperatures by means of various accessories.

  • Page 13: P&Id "Piping And Instrumentation Diagram

    Product Description | 2 2.7.2 P&ID "Piping and Instrumentation Diagram" G1/4 P&ID for classification A and B Flame arrester Flame arrester bypass bypass DN40 PN16 0601 (NC0100B) (see ATEX classification, chapter 2.7.1) DN50 PN16 (NC0200-0300B) 0602 Flushing liquid device TSA+ Flushing liquid device DN40 PN16 (NC0100B)
  • Page 14 2 | Product Description P&ID for classification C , D and E G1/4 (see ATEX classification, chapter 2.7.1) DN40 PN16 (NC0100B) Flushing liquid device Flushing liquid device DN50 PN16 (NC0200-0300B) 0503 0201 Purge gas system Purge gas system 0202 0501 0701 Barrier gas system Barrier gas system...
  • Page 15 Product Description | 2 P&ID for classification F , G and H G1/4 (see ATEX classification, chapter 2.7.1) DN40 PN16 (NC0100B) Flushing liquid device Flushing liquid device DN50 PN16 (NC0200-0300B) 0503 0201 Purge gas system Purge gas system 0202 0501 0701 Barrier gas system Barrier gas system...

  • Page 16: Transport

    3 | Transport Transport WARNING Suspended load. Risk of severe injury! • Do not walk, stand or work under suspended loads. WARNING Lifting the machine using the motor eye bolt. Risk of severe injury! • Do not lift the machine using the eye bolt fitted to the motor. Only lift the machine as shown.

  • Page 17: Installation

    Connection [► 19]. If the machine is installed at an altitude greater than 1000 meters above sea level: • Contact your Busch representative, the motor should be derated or the ambient temperature limited. If additional electrical components not included in scope of delivery should be added: •...

  • Page 18: Connecting Lines / Pipes

    – DN50 PN16, EN 1092-1 for NC 0200 B and NC 0300 B If the machine is used as part of a vacuum system: • Busch recommends the installation of an isolation valve in order to prevent the machine from turning backwards.

  • Page 19: Discharge Connection

    Installation | 5 5.2.2 Discharge Connection If the machine corresponds to ATEX Classification “A” or “B” (see ATEX Classifications and Associated Accessories [► 12]) • The machine must be equipped with flame arresters at the suction and discharge connections. Connection size(s): At the machine discharge connection: –...
  • Page 20 5 | Installation Water-cooled version with plate heat exchanger (optional): Cooling water inlet Cooling water outlet Plate heat exchanger • Connect the cooling water connections (CWI / CWO) to the water supply. Connection size: – DN15 PN10, DIN 2566 (CWI / CWO) with direct cooling –...

  • Page 21: Barrier Gas System Connection

    Installation | 5 5.2.4 Barrier Gas System Connection FME, (optional) (optional) FS-/0501 (with oil lubricated single mechanical seals) FS+/0501 (with gas lubricated double mechanical seals) Barrier gas connection Flow meter Flow switch Manometer Solenoid valve Nitrogen inlet filter Nitrogen panel Pressure regulating valve •...

  • Page 22: Dilution Gas System Connection (Optional)

    5 | Installation 5.2.5 Dilution Gas System Connection (Optional) FME, FR Dilution gas connection Flow meter Flow regulator Manometer Nitrogen panel Pressure regulating valve Variante FME, FR FS-/0504 (optional) (optional) (optional) Dilution gas connection Flow meter Flow regulator Flow switch Manometer Solenoid valve Nitrogen inlet filter...
  • Page 23 Installation | 5 If a flow switch is installed: • Electrically connect the flow switch (FS) of the flow meter, see Wiring Diagram Flow Switch [► 35]. • Make sure that the gas complies with the following requirements: Gas type Dry nitrogen Gas temperature °C 0 ...

  • Page 24: Purge Gas System Connection

    5 | Installation 5.2.6 Purge Gas System Connection FME, FR FS-/0503 (optional) (optional) (optional) Purge gas connection Flow meter Flow regulator Flow switch Inlet flange Manometer Solenoid valve Nitrogen inlet filter Nitrogen panel Pressure regulating valve • Connect the purge gas connection to the gas supply. Connection size: –...

  • Page 25: Flame Arrester Bypass Connection (Optional)

    Installation | 5 5.2.7 Flame Arrester Bypass Connection (Optional) WARNING Inlet pressure >100 hPa with open bypass. Risk of severe injury! Risk of explosion propagation! • The bypass must only be open when the inlet pressure (P1 and P2) is <100 hPa. •...

  • Page 26: Earth Connection

    Earth connection of the machine (ECP) 5.4 Filling Oil NOTICE Use of an inappropriate oil. Risk of premature failure! Loss of efficiency! • Only use an oil type which has previously been approved and recommended by Busch. 26 / 60 0870203597_NC0100-0300B_WCV_Ex_-0001_IM_en...
  • Page 27 Installation | 5 For oil type and oil capacity see Technical Data [► 55] and Oil [► 55]. Oil filling at the motor side Check oil level Oil filling at the suction side Check oil level 0870203597_NC0100-0300B_WCV_Ex_-0001_IM_en 27 / 60...

  • Page 28: Filling Cooling Liquid

    If there is no sticker (part no. 0565 568 959) on the machine: • Order it from your Busch representative. 5.5 Filling Cooling Liquid This step has to be carried out only if the machine is equipped with a plate heat ex- changer.

  • Page 29: Liquid Flushing Device Installation (Optional)

    Installation | 5 5.6 Liquid Flushing Device Installation (Optional) LS-/0201 LS-/0202 Flushing liquid fill plug Flushing liquid vessel Flow regulator Inlet flange Level indicator Level switch Solenoid valve • Electrically connect the two level switches (LS), see Wiring Diagram Level Switch [► 36].

  • Page 30: Electrical Connection

    • Provide an overload protection according to EN 60204-1 for the motor. • Make sure that the motor of the machine will not be affected by electric or electro- magnetic disturbance from the mains; if necessary seek advice from Busch. • Connect the protective earth conductor.

  • Page 31: Wiring Diagram Three-Phase Motor (Pump Drive)

    Installation | 5 NOTICE Incorrect connection. Risk of damage to the motor! • The wiring diagrams given below are typical. Check the inside of the terminal box for motor connection instructions/diagrams. 5.8.1 Wiring Diagram Three-Phase Motor (Pump Drive) Delta connection (low voltage): Star connection (high voltage): Double star connection, multi-voltage Star connection, multi-voltage motor...

  • Page 32: Wiring Diagram Solenoid Valve

    5 | Installation NOTICE Incorrect direction of rotation. Risk of damage to the machine! • Operation in the wrong direction of rotation can destroy the machine in a short time! Prior to start-up, ensure that the machine is operated in the right direction. The intended rotation direction of the motor is defined by the illustration below: •...

  • Page 33: Electrical Connection Of The Monitoring Devices

    Installation | 5 5.9 Electrical Connection of the Monitoring Devices NOTE In order to prevent potential nuisance alarms, Busch allows that the control system is configured with a time delay of 2 seconds. NOTE The accessories below are considered as standard.

  • Page 34: Wiring Diagram Pressure Switch

    5 | Installation COBRA Temperature Trip signal type class (TSA+/0101) (TSA+/0102) (TSA+/0103) trip trip trip NC 0100 B T4 (i/o) 80°C ► 8.26 mA 120°C ► 10.4 mA 125°C ► 10.67 mA T3 (i/o) 140°C ► 11.47 mA 145°C ► 11.73 mA 2G(i) or 3G(i) only NC 0200 B...

  • Page 35: Wiring Diagram Vibration Sensor

    (SA+/0701) = 0.4 g RMS ► 10.4 mA trip trip signal. 5.9.5 Wiring Diagram Flow Switch Part no.: No Busch ref. (integrated into the 1 (+) flow meter) Supplier reference: Pepperl+Fuchs RC15-14-N3...

  • Page 36: Wiring Diagram Level Switch

    (PS-/0302) = 2.5 bar (relative) ► min. admissible pressure trip 5.10 Electrical Connection of the Flame Arrester Bypass (Optional) 5.10.1 Wiring Diagram Limit Switch Part no.: No Busch ref. (integrated into the 1 (+) pneumatic actuator) Supplier reference: Pepperl+Fuchs NJ2-V3-N 2 (-) P&ID position:...

  • Page 37: Wiring Diagram Solenoid Valve

    Installation | 5 5.10.2 Wiring Diagram Solenoid Valve Part no. : No Busch ref. (integrated into the 1 (+) pneumatic actuator) Supplier reference: Parker Lucifer 483580.01 N7 (electric) 2 (-) Parker Lucifer 341 N 3190 (pneumatic) Electrical data: U = 28 VDC ; I = 110 mA...

  • Page 38: Flowchart

    5 | Installation 5.11 Flowchart The machine safety depends on the monitoring accessories sequencing according to the following flowchart. Start Warning: T < T warning? T < T trip? High gas temperature ! Warning: T < T warning? T < T trip? High gas temperature ! Warning: T <...

  • Page 39: Commissioning

    Commissioning | 6 Commissioning DANGER Specific conditions for machines certified ATEX 1G (i). Risk of severe injury! Risk of explosion! If the machine has a classification type “A” and “B” (see ATEX Classifications and Asso- ciated Accessories [► 12]): • Make sure to comply with all specific conditions mentioned in the EC-type examina- tion certificate attached to the ATEX Accessories Book provided separately.

  • Page 40: Adjustment Of The Thermostatic Valve (Direct Cooling Only)

    NC 0300 B T4(i) T4(o) < 25°C 0 … 2 T4(i) T4(o) < 20°C 0 … 1 T3(i) T3(o) < 40°C < 40°C 0 … 4 • If you need any further information, contact your Busch representative. 40 / 60 0870203597_NC0100-0300B_WCV_Ex_-0001_IM_en...

  • Page 41: Conveying Condensable Vapours

    Commissioning | 6 6.2 Conveying Condensable Vapours The machine, equipped either with a gas ballast valve or a dilution gas system, is suitable for the conveyance of condensable vapours within the gas flow. If condensable vapours are to be conveyed: START •...

  • Page 42: Trip Procedure

    Risk of injuries! Risk of premature failure and loss of efficiency! • Respect the maintenance intervals or ask your Busch representative for service. • Shut down the machine and lock against inadvertent start up. • Turn off the water supply.

  • Page 43: Maintenance Schedule

    • Check the cooling liquid level, see Cooling Liquid Level Inspection [► 44]. • Check the machine for oil leaks - in case of leaks have the machine repaired (contact Busch). Yearly • Carry out a visual inspection and clean the machine from dust and dirt.

  • Page 44: Cooling Liquid Level Inspection

    7 | Maintenance 7.3 Cooling Liquid Level Inspection This step has to be carried out only if the machine is equipped with a plate heat ex- changer. • Shut down the machine. For NC 0100 B: • Let the machine cool down. •...

  • Page 45: Oil Change

    NOTICE Use of an inappropriate oil. Risk of premature failure! Loss of efficiency! • Only use an oil type which has previously been approved and recommended by Busch. Oil draining at the motor side Cleaning cloth Magnetic plug Drain pan...
  • Page 46 7 | Maintenance Oil draining at the suction side Magnetic plug Cleaning cloth Drain pan For oil type and oil capacity see Technical Data [► 55] and Oil [► 55]. Oil filling at the motor side Check oil level 46 / 60 0870203597_NC0100-0300B_WCV_Ex_-0001_IM_en...
  • Page 47 Last oil change __ / __ / ____ Oil type see nameplate Change interval see instruction manual If there is no sticker (part no. 0565 568 959) on the machine: • Order it from your Busch representative. 0870203597_NC0100-0300B_WCV_Ex_-0001_IM_en 47 / 60...

  • Page 48: Cooling Liquid Change

    7 | Maintenance 7.5 Cooling Liquid Change This step has to be carried out only if the machine is equipped with a plate heat ex- changer. NC 0200 B NC 0100 B NC 0300 B For cooling liquid type and cooling liquid capacity see Technical Data [► 55] and Cooling Liquid [► 55].

  • Page 49: Calibration Procedure Of The Electrical Devices

    Maintenance | 7 7.6 Calibration Procedure of the Electrical Devices 7.6.1 Procedure A • Remove the resistance thermometer from the machine. • Check it with a calibrated oven or send it to an approved laboratory for inspection. • Reassemble the resistance thermometer on the machine. 7.6.2 Procedure B •...

  • Page 50: Procedure G

    7 | Maintenance 7.6.7 Procedure G • Check that the solenoid valve changes state by electrical supply. • Perform a visual inspection of the solenoid valve sealing by means of the flow meter in order to ensure that the device is still gas tight. 7.6.8 Procedure H •...

  • Page 51: Overhaul

    • Decontaminate the machine as much as possible and state the contamination status in a ‘Declaration of Contamination’. Busch will only accept machines that come with a completely filled in and legally binding signed ‘Declaration of Contamination’. (Form downloadable from www.buschvacuum.com) NOTICE Improper assembly.

  • Page 52: Dismantling And Disposal

    • 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 is no standard spare parts kits available for this product, if you require Busch gen- uine parts: •...

  • Page 53: Troubleshooting

    Busch). Solid foreign matter has • Remove the solid foreign entered the machine. matter or repair the ma- chine (contact Busch). • Install an inlet filter if ne- cessary. A temperature sensor has • Let the machine cool reached the switch point.
  • Page 54 Oil Change [► 45]. The machine runs too hot. • See problem "The ma- chine runs too hot". For the solution of problems not mentioned in the troubleshooting chart contact your Busch representative. 54 / 60 0870203597_NC0100-0300B_WCV_Ex_-0001_IM_en...

  • Page 55: Technical Data

    Technical Data | 12 12 Technical Data NC 0100 B NC 0200 B NC 0300 B Pumping speed m³/h 110 / 130 220 / 265 320 / 385 (50Hz / 60Hz) Ultimate pressure hPa (mbar) ≤0.05 / ≤0.01 with standard coating “NC xxxx xxx” abs.

  • Page 56: Eu Declaration Of Conformity - Atex 1G(I)/2G(O)

    This Declaration of Conformity and the CE-mark affixed to the nameplate are valid for the machine within the Busch scope of delivery. This Declaration of Conformity is issued under the sole responsibility of the manufacturer. When this machine is integrated into a superordinate machinery the manufacturer of the superordinate machinery (this can be the operating company, too) must conduct the conformity assessment process for the superordinate machine or plant, issue the Declaration of Conformity for it and affix the CE-mark.

  • Page 57: Eu Declaration Of Conformity - Atex 2G(I/O) And 3G(I/O)

    This Declaration of Conformity and the CE-mark affixed to the nameplate are valid for the machine within the Busch scope of delivery. This Declaration of Conformity is issued under the sole responsibility of the manufacturer. When this machine is integrated into a superordinate machinery the manufacturer of the superordinate machinery (this can be the operating company, too) must conduct the conformity assessment process for the superordinate machine or plant, issue the Declaration of Conformity for it and affix the CE-mark.
  • Page 58 Note...
  • Page 59 Note...
  • Page 60 Colombia Korea South Africa www.buschvacuum.com/co www.buschvacuum.com/kr www.buschvacuum.com/za info@buschvacuum.co busch@busch.co.kr info@busch.co.za Czech Republic Malaysia Spain www.buschvacuum.com/cz www.busch.com.my www.buschvacuum.com/es info@buschvacuum.cz busch@busch.com.my contacto@buschiberica.es Denmark Mexico Sweden www.buschvacuum.com/dk www.buschvacuum.com/mx www.buschvacuum.com/se info@busch.dk info@busch.com.mx info@busch.se www.buschvacuum.com 0870203597/-0001_en / © Ateliers Busch S.A.

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