vacuubrand ME 2C NT Instructions For Use Manual
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vacuubrand ME 2C NT Instructions For Use Manual

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Technology for Vacuum Systems
Instructions for use
page 1 of 75
MZ 2C NT + AK + M + D
MZ 2C NT + AK + EK
MZ 2C NT + AK Synchro + EK
MD 4C NT + AK + EK
MD 4C NT + AK Synchro + EK
Chemistry diaphragm pumps
Chemistry vacuum systems
Chemistry pumping units
ME 2C NT
ME 4C NT
ME 4C NT + 2 AK
ME 8C NT
ME 8C NT + 2 AK
MZ 2C NT
MZ 2C NT + 2 AK
MD 4C NT
MD 4C NT + 2 AK
PC 101 NT
PC 201 NT

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Summary of Contents for vacuubrand ME 2C NT

  • Page 1 1 of 75 Technology for Vacuum Systems Instructions for use ME 2C NT ME 4C NT ME 4C NT + 2 AK ME 8C NT ME 8C NT + 2 AK MZ 2C NT MZ 2C NT + 2 AK...
  • Page 2 2 of 75 Dear customer, Your VACUUBRAND diaphragm pumps are designed to provide you with many years of trouble-free service with optimal performance. Our many years of practical experience allow us to provide a wealth of application and safety information. Please read these instructions for use before the initial operation of your pump.

  • Page 3: Table Of Contents

    page 8 of 75 Contents Safety information!............. 9 Important information! ................. 9 General information................11 Intended use..................11 Setting up and installing the equipment ..........12 Ambient conditions ................14 Operating conditions ................. 15 Safety during operation ..............17 Maintenance and repair..............19 Important information: Equipment marking (ATEX) ....

  • Page 4: Safety Information

    Make operating personnel aware of dangers arising from the pump and the pumped substances. VACUUBRAND disclaims any liability for inappropri- ate use of these pumps and for damage from failure to follow instructions contained in this manual.
  • Page 5 page 10 of 75 DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury. avoided, could result in minor or moderate injury. NOTICE is used to address practices not related to NOTICE personal injury.

  • Page 6: General Information

    page 11 of 75 General information Remove all packing material from the packing box. Re- NOTICE move the product from its packing-box and retain all pack- aging until the equipment is inspected and tested. Re- move the protective caps from the inlet and outlet ports and retain for future use.

  • Page 7: Setting Up And Installing The Equipment

    page 12 of 75 Do not use the pump to generate pressure. The pumps are designed for ambient temperatures during operation between +50°F and +104°F (+10°C and +40°C). Periodically check maximum tempera- tures if installing the pump in a cabinet or a housing. Make sure ventilation is adequate to maintain recom- mended operating temperature.
  • Page 8 page 13 of 75 Due to the high compression ratio, the pump may gen- erate overpressure at the outlet. Check pressure com- patibility with system components (e.g., exhaust pipe- line or exhaust valve) at the outlet. Do not permit any uncontrolled pressurizing. Check the overpressure safety relief device at the ex- haust waste vapor condenser at appropriate intervals.

  • Page 9: Ambient Conditions

    page 14 of 75 fore setting the voltage selection switch. Note: If the pump is switched on with wrong voltage selection, the motor may be damaged! coolant outlet pipe is always free and that it cannot get blocked. If installing an optional cool- ant valve, it must always be in the supply line of the exhaust waste vapor condenser.

  • Page 10: Operating Conditions

    page 15 of 75 Do not use this product in an area where it can fall or be pulled into water or other liquids. recommended conditions, e.g., using the equipment outdoors, installation in higher altitudes, conductive pollution or external condensation on the pump. To the best of our knowledge the equipment is in com- NOTICE pliance with the requirements of the applicable EC-direc-...
  • Page 11 page 16 of 75 Do not pump: - unstable substances - substances which react explosively under impact (mechanical stress) without air - substances which react explosively when being ex- posed to elevated temperatures without air, - substances subject to auto-ignition, - substances which are - explosive substances.

  • Page 12: Safety During Operation

    page 17 of 75 Safety during operation Adopt suitable measures to prevent the release of dan- gerous, toxic, explosive, corrosive, noxious or pollut- of such substances from the pump outlet, install an appropriate collecting and disposal system and take protective action for pump and environment. You must take suitable precautions to prevent any for- mation of explosive mixtures in the pump chamber or at the outlet of the pump.
  • Page 13 page 18 of 75 Interruption of the pump (e.g., due to power failure), failure of connected components or of parts of the sup- ply, or change in parameters must not be allowed to lead to dangerous conditions. In case of a diaphragm failure or in case of a leak in the manifold, pumped substances might be released into the environment or into the pump housing or motor.

  • Page 14: Maintenance And Repair

    (see section „Repair - Maintenance - Return - Calibration“, pg. 67) are followed. Take advantage of our service seminars, which put special focus on the maintenance and repair of vacuum pumps. For details and for the online ”Instructions for repair” man- ual see www.vacuubrand.com.
  • Page 15 page 20 of 75 In normal use, the lifetime of the diaphragms and valves is typically 15,000 operating hours. Bearings have a typi- cal durability of 40000 h. Motor capacitors have a typi- cal durability in the range of 10000 to 40000 h depending strongly on operation conditions including ambient tem- perature, humidity or load.
  • Page 16 page 21 of 75 pump from the coolant circuit and drain condensate, if applicable. Ensure that maintenance is done only by suitably trained NOTICE and supervised technicians. Ensure that the maintenance technician is familiar with the safety procedures which re- late to the products processed by the pumping system.

  • Page 17: Important Information: Equipment Marking (Atex)

    22 of 75 Important information: Equipment marking (ATEX) VACUUBRAND equipment bearing mark (see rating plate) II 3G IIC T3 X Internal Atm. only Tech. File Ref.: VAC-EX01 ner part (wetted part, pumped gas or vapor) of the equipment. The equip- ment is not suitable for use in external, potentially explosive atmospheres (environment).
  • Page 18 page 23 of 75 during operation of +10 to +40°C. Never exceed these ambient and gas inlet temperatures. If pumping / measuring gases which are not potentially explosive, extended gas inlet temperatures are permissible. See instructions for use, section “Gas inlet temperatures” or “Techni- cal data”.

  • Page 19: Technical Data

    page 24 of 75 Technical data General technical data valid for all pumps/pumping units Maximum permissible inlet pressure (absolute) (bar) (1.1) Maximum permissible outlet pressure (absolute) (bar) (1.1) Maximum pressure difference between inlet and outlet (bar) (1.1) Maximum permissible pressure (abso- 17.5 lute) at gas ballast valve (bar)

  • Page 20: Gas Inlet Temperatures

    (low gas load) (-10°C to +80°C*) * if pumping potentially explosive atmospheres: 50 °F to 104 °F (+10°C to +40°C) ME 4C NT Type ME 2C NT ME 4C NT + 2 AK Maximum pumping 1.2 / 1.4 2.3 / 2.6 speed* 50/60 Hz (2.1 / 2.4)
  • Page 21 page 26 of 75 MZ 2C NT MZ 2C NT + 2 AK MZ 2C NT + AK + EK Type MZ 2C NT + AK SYNCHRO + EK MZ 2C NT + AK + M + D PC 101 NT Maximum pumping speed* 1.2 / 1.4 50/60 Hz (ISO 21360)
  • Page 22 page 27 of 75 MD 4C NT ME 8C NT MD 4C NT + 2 AK MD 4C NT + AK + EK Type ME 8C NT MD 4C NT + + 2 AK AK SYNCHRO + EK PC 201 NT Maximum pumping 4.0 / 4.6 2.0 / 2.2...

  • Page 23: Wetted Parts

    Wetted parts Components Wetted materials Head cover Diaphragm clamping disc Diaphragm PTFE Valves (ME 2C NT/ME 4C NT/ME 8C NT) PTFE Valves (MZ 2C NT/MD 4C NT/ME 8C NT +2AK) FFKM O-rings Valve head Gas ballast tube PTFE carbon reinforced...

  • Page 24: Abbreviations

    page 29 of 75 Abbreviations ETFE PTFE FFKM FPM: Fluoroelastomer ECTFE Polypropylene PBT: Polybutylene terephthalate PET: Polyethylene terephthalate separator for condensates, catchpot at inlet or outlet exhaust vapor condenser Pump parts Position Component Position Component Inlet Overpressure safety relief device Outlet Coolant inlet Gas ballast valve...
  • Page 25 30 of 75 ME 2C NT ME 4C NT...
  • Page 26 page 31 of 75 ME 4C NT + 2 AK Power connection: see ME 4C NT MZ 2C NT MZ 2C NT KF 16...
  • Page 27 page 32 of 75 ME 8C NT MD 4C NT...
  • Page 28 page 33 of 75 MZ 2C NT + 2 AK Power connection and ON/OFF switch: see MZ 2C NT MZ 2C NT + AK + EK Power connection alternately: and ON/OFF switch: at the inlet see MZ 2C NT...
  • Page 29 page 34 of 75 MZ 2C NT + AK SYNCHRO + EK Power connection and ON/OFF switch: see MZ 2C NT MZ 2C NT + AK + M + D Power connection and ON/OFF switch: see MZ 2C NT...
  • Page 30 page 35 of 75 PC 101 NT Power connection and ON/OFF switch: see MZ 2C NT ME 8C NT + 2 AK Power connection and ON/OFF switch: see ME 8C NT...
  • Page 31 page 36 of 75 MD 4C NT + 2 AK Power connection and ON/OFF switch: see MD 4C NT MD 4C NT + AK + EK Power connection and ON/OFF switch: see MD 4C NT...
  • Page 32 page 37 of 75 MD 4C NT + AK SYNCHRO + EK Power connection and ON/OFF switch: see MD 4C NT PC 201 NT Power connection and ON/OFF switch: see MD 4C NT...

  • Page 33: Use And Operation

    page 38 of 75 Use and operation Installing a pump in a vacuum system the outlet, install an appropriate system to catch and Connect a gas-tight exhaust line at the pump outlet if necessary. Always vent exhaust gases appropriately (e.g., into a fume hood). Never block or restrict the gas outlet.
  • Page 34 page 39 of 75 to be sure that the power source and the equipment match in voltage, phase, and frequency. Pump with dual-voltage motor: Check that the volt- age selection switch at the terminal box is positioned correctly. Check every time before starting the pump. Note: If the pump is switched on with wrong voltage selection, the motor may be damaged! Change the selection at the voltage selection...
  • Page 35 page 40 of 75 When assembling, ensure vacuum-tightness. After as- sembly, check the whole system for leaks. Secure hose connections at the pump appropriately, e.g., with hose clamps, to protect against accidental detach- ment. To reduce pump noise emanating from the pump exhaust port, connect an exhaust hose or use a silencer (see ”Ac- cessories”, pg.
  • Page 36 page 41 of 75 vapors at the outlet. Controlled recovery of condensates. Close to 100% solvent recovery. The isolation cover protects against glass splinters in case of breakage, acts as ther- mal isolation to avoid condensation of hu- midity and is intended to absorb shocks. Attach the tubing of the coolant circuit to the respective hose nozzles (hose nozzles for tubing I.D.

  • Page 37: During Operation

    page 42 of 75 (e.g., coolant valve). by blocked or squeezed coolant hoses). of the exhaust waste vapor condenser. During operation Vent and dispose of potentially dangerous gases or vapors at the outlet of the pump appropriately. Due to the high compression ratio, the pump might generate overpressure at the outlet.
  • Page 38 page 43 of 75 etc.), let the pump run with gas ballast to help purge any condensation in the pump. Prevent internal condensation, transfer of liquids or dust. The diaphragms and valves will be damaged, if liquids are Check the pump regularly for external soiling and depos- its.

  • Page 39: Important Notes Regarding The Use Of Gas Ballast

    page 44 of 75 valve slightly hand-tight. Further tightening will not in- crease sealing of the valve, and may lead to damage. Note: Over-tightening or -loosening may damage the dia- NOTICE phragm or the valve seat, and the valve may not close properly thereafter.

  • Page 40: Important Notes Concerning The Operation Of The Exhaust Waste Vapor Condenser

    page 45 of 75 - Use inert gas for gas ballast to avoid the formation of to connect an inert gas supply line (see ”Accessories”, pg. 48). This adapter replaces the standard gas bal- last cap and allows for an inert gas line to be connect- pressure of 17.5 psi (1.2 bar) absolute.
  • Page 41 (9) during operation. Check the liquid level in both catchpots regularly. Do not allow the catchpots to level sensor (see ”Accessories”, pg. 48) for monitoring, if necessary (VACUUBRAND controller CVC 3000 or VNC 2 is required). The maximum liquid level is at approximately 80% of the catchpots.

  • Page 42: Shutdown & Storage

    page 47 of 75 Important: Comply with regulations when disposing of solvents/condensates. Recycle if possible; purify if contaminated. Shutdown & storage The pump can be switched off under vacuum. Short-term: NOTICE Has the pump been exposed to condensate? Allow the pump to continue to run at atmospheric pres- sure for a few minutes.

  • Page 43: Accessories

    page 48 of 75 Accessories Digital vacuum gauge DVR 2 .....682902 Level sensor for catchpots Level sensor ................699908 Vacuum hose (caoutchouc) I.D. 3/8” (10 mm ID) ........686002 Silencer for hose nozzle 3/8” (DN 10 mm) ..........636588 Attention: Dust-laden gases, deposits and condensed solvent vapor can restrict bearings, diaphragms, and valves.

  • Page 44: Spare Parts

    page 49 of 75 Flow control diaphragm valve (C2) ............677137 for assembly at valve block or distribution head Solenoid operated valve (C3-B) ..............636668 for assembly at valve block or distribution head Manometer module (C5) ................677100 for assembly at valve block or distribution head Controller CVC 3000 ...................683160 In-line valve VV-B 6C ..................674291 Mini-Network...

  • Page 45: Troubleshooting

    page 50 of 75 Troubleshooting Fault Possible cause Remedy Pump does not Electrical power cord Plug in power cord. start or stops im- not plugged in, electri- Check fuse. mediately. cal supply failure? Device fuse blown? Identify cause of failure. Replace device fuse.
  • Page 46 page 51 of 75 Fault Possible cause Remedy Pump too noisy. Atmospheric or high Connect hose or silencer pressure at the pump to pump outlet. Be careful inlet? not to cause outlet over- pressure, especially with condensable vapors. Diaphragm crack or Perform maintenance.

  • Page 47: Replacing Diaphragms And Valves

    page 52 of 75 Replacing diaphragms and valves Please read section ”Replacing diaphragms and valves” com- pletely before starting maintenance. The pictures may show other versions of pumps. This does not change the method of replacing diaphragms and valves. Never operate the pump if covers or other parts of the pump are disassembled.
  • Page 48 - Regular maintenance will improve the lifetime of the pump and also protect both users and the environment. Service kit for ME 2C NT ................696878 Service kit for ME 4C NT ................696864 Service kit for MZ 2C NT / PC 101 NT ............696869 Service kit for MD 4C NT / PC 201 NT / ME 8C NT + 2AK ......696870...

  • Page 49: Cleaning And Inspecting The Pump Heads

    page 54 of 75 Cleaning and inspecting the pump heads The replacement of the diaphragm and the replacement of the valves can be carried out separately. To replace the valves, remove the head covers of one side of the pump be disassembled.
  • Page 50 page 55 of 75 Fittings and tubing of the different pump models: ME 4C NT MZ 2C NT ME 8C NT MD 4C NT...
  • Page 51 page 56 of 75 MZ 2C NT 2AK MZ 2C NT AK + EK MZ 2C NT AK SYNCHRO + EK PC 101 NT MD 4C NT 2AK MD 4C NT AK + EK MD 4C NT AK SYNCHRO + EK PC 201 NT ME 8C NT + 2 AK...
  • Page 52 page 57 of 75 View of the disassembled pump head parts A: Head alignment pin / mark B: Connecting rod M: O-ring C: Housing N: Valve D: Washer O: Valve head E: Diaphragm support disc P: Hose nozzle F: Diaphragm Q: Connection fastener G: Diaphragm clamping disc with hinged cover...

  • Page 53: Replacing The Diaphragm

    page 58 of 75 Detach the coupling of the connection tube (V) to the other side of the pump at the valve head (O). Pump at pump support: Detach the coupling of the connection tube (V) to the other side of the pump as well as the hose connection to the inlet/outlet of the vacu- um system at the valve head (O).
  • Page 54 page 59 of 75 Check diaphragm (F) for damage and re- place if necessary. Never use a pointed or sharp-edged tool to lift the diaphragm. Use the diaphragm key to grip the diaphragm support disc (E) below the diaphragm. Unscrew diaphragm support disc (E) with diaphragm (F) and dia- phragm clamping disc (G).

  • Page 55: Replacing The Valves

    page 60 of 75 Assemble the original number of washers (D) between diaphragm support disc (E) and connecting rod (B). Screw diaphragm clamping disc (G), dia- phragm (F), diaphragm support disc (E), and washers (D) to connecting rod (B). Optimum torque for the diaphragm support disc: 4.4 ft (6 Nm), it is recommended to use a torque wrench.
  • Page 56 page 61 of 75 Remove valve heads (O) along with the disc springs (R), connection tube if applicable, hose nozzles (P) and connection fasten- ers (Q) or move the valve heads carefully aside. Note position and orientation of the valve heads. Note position and alignment of valves (N).
  • Page 57 page 62 of 75 Valve head with gas ballast or hose nozzle connection: Insert square nut (K) in the groove of the head cover (J) or position square nut in the groove and then screw on connection fastener. Position clamping bracket (S) with counter- sunk bores facing upwards.
  • Page 58 page 63 of 75 of the pump at the valve head (O). Pump on pump support: of the pump, as well as the hose connection to the inlet or outlet of the vacuum system at the valve head (O). Slip connecting tube (V) onto hose connection of valve head. Slide on the tube and the hose clip (U) until touching the nose at the valve head.
  • Page 59 page 64 of 75 Checking the ultimate vacuum After any intervention at the equipment (e.g., repair / maintenance) the ultimate vacuum of the pump has to be checked. Only if the pump enough to ensure that no explosive atmospheres will occur in the inte- rior of the equipment.

  • Page 60: Replacing The Overpressure Safety Relief Device

    page 65 of 75 Replacing the overpressure safety relief device Overpressure safety relief device ......638821 (at exhaust waste vapor condenser) Remove catchpot (9) at outlet (see ”Use and operation”, pg. 38). haust vapor condenser. holder of the exhaust vapor condenser with a Torx driver T10.

  • Page 61: Replacing The Fuse

    page 66 of 75 Replacing the fuse Switch off the pump. Disconnect the electrical power cord before open- ing the terminal box. After disconnecting from power, to allow the capacitors to discharge. The replacing of the fuse has to be carried out by a trained electrician.

  • Page 62: Repair - Maintenance - Return - Calibration

    3 or 4. These devices cannot be checked, maintained or re- paired. Also decontaminated devices must not returned to VACUUBRAND due to a residual risk. The same conditions apply to on-site work. No repair, maintenance, return or calibration is possi- ble unless the correctly completed health and safety clearance form is returned.
  • Page 63 page 68 of 75 If you do not wish a repair on the basis of our quotation, the device may be returned to you disassembled and at your expense. In many cases, the components must be cleaned in the factory prior to repair. For cleaning we use an environmentally friendly water based process.

  • Page 64: Warranty

    69 of 75 Warranty VACUUBRAND shall be liable for insuring that this prod- uct, including any agreed installation, has been free of de- fects at the time of the transfer of risk. VACUUBRAND shall not be liable for the consequences...

  • Page 65: Health And Safety Clearance Form

    * Contact the VACUUBRAND service absolutely before dispatching the device. ** Devices which have been in contact with biological substances of risk level 3 or 4 cannot be checked, main- tained or repaired. Also decontaminated devices must not returned to VACUUBRAND due to a residual risk. 7. Radioactive contamination: 8.

  • Page 66: Ec Declaration Of Conformity Of The Machinery

    Membranvakuumpumpe / Diaphragm vacuum pump / Pompe à membrane: Typ / Type / Type: ME 2C NT / ME 4C NT / ME 4C NT + 2 AK / MZ 2C NT / MZ 2C NT + 2 AK /...
  • Page 67 page 72 of 75 tive mark (Licensed Test mark) on the pump rating plate.

  • Page 68: China Rohs

    page 73 of 75 China RoHS...
  • Page 69 page 74 of 75...
  • Page 70 Alfred-Zippe-Str. 4 · 97877 Wertheim / Germany T +49 9342 808-0 · F +49 9342 808-5555 info@vacuubrand.com · www.vacuubrand.com VACUUBRAND GMBH + CO KG - Technology for Vacuum Systems - © 2017 VACUUBRAND GMBH + CO KG Printed in Germany Manual-no.: 999156 / 07/07/2017...

This manual is also suitable for:

Mz 2c ntMz 2c nt + 2 akMz 2c nt + ak + m + dMz 2c nt + ak + ekMz 2c nt + ak synchro + ekMe 4c nt ... Show all

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