Buchi Rotavapor R-220 Manual
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Buchi Rotavapor R-220 Manual

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BÜCHI Rotavapor R-220
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Read this Operating Manual through carefully before using
the Büchi Rotavapor R-220. Always keep these Instructions
readily available in the immediate vicinity of the unit so that
they make be consulted at any time.
Chapter 2 contains important safety rules which must be ob-
served to ensure the safe operation of the rotary evaporator.
We reserve the right to make technical changes without
prior notification. No portion of this Operating Manual
may be reproduced, processed using electronic or optical
systems, duplicated, or distributed in any form without
the prior written approval of Büchi Labortechnik AG.
All rights reserved. © Büchi Labortechnik AG, 1999-2001
en, Version F (46 Pages)
R-220 Operation Manual
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Ordering No.
96737
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Summary of Contents for Buchi Rotavapor R-220

  • Page 1: Table Of Contents

    5.3 Tips and Tricks 5.4 Table of Solvents Read this Operating Manual through carefully before using the Büchi Rotavapor R-220. Always keep these Instructions readily available in the immediate vicinity of the unit so that they make be consulted at any time.

  • Page 2: Scope Of Delivery

    BÜCHI Rotavapor R-220 1 Scope of Delivery Scope of Delivery Component 1 Chassis, complete, with control and driving unit and with heating bath 1 6L, 10L or 20L Evaporation flask 1 Receiving flask 1 x 10L Single receiver or 2 x 10L Interchangeable receivers 1 Glass assembly (Refer to Chap.

  • Page 3: Safety

    BÜCHI Rotavapor R-220 2 Safety Safety This unit has been built in accordance with the latest state of the art and with recognized rules of safety. Nevertheless there are certain risks and dangers entailed with this unit: • whenever the unit is operated by individuals who lack sufficient training;...
  • Page 4 • The drying of hard, brittle materials (e.g., stones, soil sam- ples) that might cause damage to the receiving flask; • Sudden shock-cooling of the evaporating flask. The Rotavapor R-220 is not intended for work done under overpressures. Basic Dangers Basic dangers arise when working with the following: •...
  • Page 5 BÜCHI Rotavapor R-220 2 Safety It is always mandatory to wear personal protective gear such as protective eyewear and protective clothing. The machine must never be rotated without the snap flange coupling and evaporation flask being closed. No distillation may be started unless the evaporating flask is immersed in the bath.

  • Page 6: Function

    BÜCHI Rotavapor R-220 3 Function Function A vacuum rotary evaporator is used for quick single-stage distillations that treat the product gently. The process is based on the evaporation and condensation of solvents in a rotating evaporating flask. It is possible to work under a vacuum to ensure gentler treat- ment of the product and increase productive output.

  • Page 7: Putting Into Operation

    BÜCHI Rotavapor R-220 4 Putting into Operation Putting into Operation The danger zone around the Rotavapor R-220 can extend outward by up to 10 m. When working inside this danger zone, there is a risk of damaging the glass parts, which could cause them to implode.

  • Page 8: Setting Up The Support Rod

    BÜCHI Rotavapor R-220 4 Putting into Operation Setting up the Support Rod • Place the support rod into the holder provided for it and lower it into the foot hole at the back. Fix it tight using the locking screw •...

  • Page 9: Attachment Of The Easyclamp

    BÜCHI Rotavapor R-220 4 Putting into Operation Attachment of the EasyClamp • Carefully lay the EasyClamp around the glass and fold the top and bottom segments together, closing them at their open connection point. • Insert the bolt that does not have a spacer spring, and tighten the knurled nuts slightly.

  • Page 10: Installation Of The Reflux Glass Assembly

    BÜCHI Rotavapor R-220 4 Putting into Operation Installation of the Reflux Glass Assembly All glassware used must be intact, with no signs of cracks, spreading impact marks, or other damage. Inspect the glass- ware visually before installing it. • Fix the reflux distribution head in position on the gear head using a DN70 EasyClamp connection.

  • Page 11: Installation Of The Descending Glass Assembly

    BÜCHI Rotavapor R-220 4 Putting into Operation 4.7 Installation of the Descending Glass Assembly All glassware used must be intact, with no signs of cracks, spreading impact marks, or other damage. Inspect the glass- ware visually before installing it. • Fix the descending distributor head in position on the gear head using a DN70 EasyClamp connection.

  • Page 12: Installation Of The Descending Glass Assembly With A

    BÜCHI Rotavapor R-220 4 Putting into Operation Installation of the Descending Glass Assembly with a 2 Cooler All glassware used must be intact, with no signs of cracks, spreading impact marks, or other damage. Inspect the glass- ware visually before installing it.

  • Page 13: Installation Of The Receiving Fixture

    BÜCHI Rotavapor R-220 4 Putting into Operation Installation of the Receiving Fixture All glassware used must be intact, with no signs of cracks, spreading impact marks, or other damage. Inspect the glass- ware visually before installing it. Single Receiver • Fasten the support ring...

  • Page 14: Attaching And Removing Flasks

    BÜCHI Rotavapor R-220 4 Putting into Operation 4.10 Attaching and Removing Flasks Bring up the flask • With the snap flange coupling open, lay the flask in position. • Close the first segment of the snap flange coupling( T h e hook must latch in).
  • Page 15 BÜCHI Rotavapor R-220 4 Putting into Operation Removing flasks • Place your hand under the flask to hold it from below. • Open the closure lever • Use your thumb to release the closure hook • Flip up the first segment of the snap flange coupling.

  • Page 16: Hose Coupling

    4 Putting into Operation BÜCHI Rotavapor R-220 4.11 Hose Couplings In general, observe the following items for all glass assemblies. The cooling water inlet is always at the lower condenser connection. When there are two condensers (D2 und DB2), the two con- densers can be connected serially, the additional condenser being cooled first.
  • Page 17 BÜCHI Rotavapor R-220 4 Putting into Operation The following is the key for all of the hose diagrams on these two pages. Cooling water inlet for first condenser Cooling water outlet for first condenser Cooling water inlet for second condenser...

  • Page 18: Operating The Shut-Off Tap

    BÜCHI Rotavapor R-220 4 Putting into Operation 4.12 Operating the Shut-off tap The shut-off tap is of a special design. It does not have a continuous thread on its inside for tightening it, but rather a sliding plane with two fixed latching positions. The closing pres- sure when it is in a closed position is provided by a prestressed spring.

  • Page 19: Reset Of The Over-Temperature Protection

    BÜCHI Rotavapor R-220 4 Putting into Operation 4.14 Reset of the over-temperature protection If the heater heats up over 205°C (e.g. if no heating medium is in the bath), it is cut off by a mechanical overtemperature protection.The overtemperature protection is reset by pushing the button under the heating block.

  • Page 20: Operation

    BÜCHI Rotavapor R-220 5 Operation Operation Make certain that the unit has been commissioned properly as described in Chapter 4. Arrangement of the Operator Control and Display Elements Main breaker switch Lift for the bath Rotation ON/OFF Rotating speed adjustment...

  • Page 21: Tips And Tricks

    BÜCHI Rotavapor R-220 5 Operation Adjusting the Optional Automatic Lowering of the Bath in Case of a Power Interruption • Press the button “LIFT down” , simultaneously switching on the main breaker switch This results in the display “ON” or “OFF”.

  • Page 22: Table Of Solvents

    BÜCHI Rotavapor R-220 5 Operation Table of Solvents Solvent Formula Molar Mass Evaporation Boiling Point Spec.Gravity Vacuum in mbar for a in g/mol Energy in J/g at 1013 mbar in g/cm Boiling Point at 40°C Acetic acid 60.0 1.049 Acetone 58.1...

  • Page 23: Maintenance

    BÜCHI Rotavapor R-220 6 Maintenance Maintenance Please note all rules aimed at keeping the rotary evaporator in a functional condition. These also include periodic cleaning and inspection for any damage that might have occurred. Make certain that supply of power to the unit has been inter- rupted before doing any maintenance work on the unit.

  • Page 24: Assembling The Snap Flange Coupling

    BÜCHI Rotavapor R-220 6 Maintenance Assembling the Snap Flange Coupling • Insert the snap flange coupling from above, until the pins in the lock latch into the hole on the lug. • Close the two segments of the snap flange coupling.

  • Page 25: Inserting The Evaporating Flask Seal

    BÜCHI Rotavapor R-220 6 Maintenance Inserting the Evaporating Flask Seal • Insert the vapor duct. • Insert the seal. Using gentle pressure, shove it across the lock preventing it from twisting out of position, and then shove it all the way in. Press it with both thumbs until it latches in position.

  • Page 26: Replacement Of The Vacuum Seal

    BÜCHI Rotavapor R-220 6 Maintenance Replacement of the Vacuum Seal • Remove the DN70 EasyClamp completely and take off the distribution head. • Pull the cylindrical seal holder out and turn it over. • Insert Tool No. 20075 into the metal guide on the seal and pull the seal out.

  • Page 27: Vacuum Seal

    BÜCHI Rotavapor R-220 6 Maintenance Vacuum Seal The seal should be cleaned whenever necessary, but at least once every six months. During the intake phase, which lasts approx. 10 hours, the seal will show signs of greater material loss due to wear. This is normal for a PTFE seal.

  • Page 28: Taking Out Of Operation

    BÜCHI Rotavapor R-220 7 Taking out of Operation Taking out of Operation Remove all hazardous materials and clean the unit thoroughly. This prevents any risk that individuals could suffer injuries due to contact with hazardous materials. Storage Always store the unit and spare parts for it in a clean and dry location.

  • Page 29: Spare Parts And Accessories

    BÜCHI Rotavapor R-220 8 Spare Parts and Accessories Spare Parts and Accessories Only original BÜCHI accessories and spare parts ensure safe operation and a proper functioning of the unit. The use of spare parts and accessories other than those from BÜCHI is permissible only with prior approval of the manufacturer.
  • Page 30 BÜCHI Rotavapor R-220 8 Spare Parts and Accessories 27150 27150 27289 41076 27289 41076 27308 41131 27308 41131 1165 41155 41155 1165 41151 / 41156 41159 1129 41335 41335 3577/5155 27338 27277/ 27277/ 1169 41164 1169 41164 41348 41130 41130...

  • Page 31: Glass Assemblies D, D2, Db, Db2

    BÜCHI Rotavapor R-220 8 Spare Parts and Accessories 8.1 Spare Parts: Glass Assemblies D, D2, DB, DB2 Component Ordering No. Vacuum connector PLG 01129 Expansion vessel PLG 01165 41151 Y-connection PLG 01169 Threaded sleeve Svl 22 03577 Seal Svl 22 Id 17 PTFE...
  • Page 32 BÜCHI Rotavapor R-220 8 Spare Parts and Accessories 3577 5155 41159 27338 27289 27824 41167 41120 41155 41151/ 41156 27289 41348 41060 41373 41348 41076 41228 27277 / 41373 41164 41228 41162 27277 / 41164 41162 27289 25979 / 25981...

  • Page 33: Glass Assemblies R, Rb, C

    BÜCHI Rotavapor R-220 8 Spare Parts and Accessories Spare Parts: Glass Assemblies R, RB, C Component Ordering No. Threaded sleeve Svl 22 03577 Seal Svl 22 Id 17 PTFE 05155 41151 Cold trap 25124 Cold trap, PLG 25978 Cold trap cover...

  • Page 34: Miscellaneous

    BÜCHI Rotavapor R-220 8 Spare Parts and Accessories Miscellaneous Component Ordering No. Interchangeable receiver (W) 41049 Receiving flask 10L 37569 41062 Branching piece 1 PLG 41048 Branching piece 2 PLG 41049 41048 Outlet valve, DN25/2 41061 Shut-off tap, small, complete...
  • Page 35 BÜCHI Rotavapor R-220 8 Spare Parts and Accessories 41094 41095 41230 41121 41084 27378 41231 20075 41135 41229 Fig. 36: Sealing elements Component Ordering No. Sealing elements Support ring inlet valve 41147 Seal SVL 30 00398 Screw Cap SVL 30...
  • Page 36 BÜCHI Rotavapor R-220 8 Spare Parts and Accessories Component Ordering No. Adjustable machine leg 41018 Fig. 38: Machine leg 41111 Clip 41110 Detent 41111 41110 Snap flange coupling, completel. 41112 41112 Fig. 39: Snap flange coupling, complete Protective screen 41214...

  • Page 37: Accessories

    BÜCHI Rotavapor R-220 8 Spare Parts and Accessories Accessories Component Ordering No. Lamella curtain Lamella curtain 41256 Individual lamella 41267 Installation Instructions! 1) Put the lamella curtain on the support rod 2) Turn the lamella curtain until position is parallel to the edge of the chassis.
  • Page 38 BÜCHI Rotavapor R-220 8 Spare Parts and Accessories Component Ordering No. 6 L Evaporating flask 27470 10 L Evaporating flask 27469 20 L Evaporating flask 27468 Fig. 43: Evaporating flask This special flask is particularly suited for drying powdery sub- stances or a homogeneous mixture of solid products.
  • Page 39 BÜCHI Rotavapor R-220 8 Spare Parts and Accessories Component Ordering No. Splash Protection Splash Protection 41201 Protective shield 41204 Protective shield seal 41259 Installation Instructions! 1) Switch the unit OFF. 2) Remove the two bolts and the plastic cover 3) Put on the seal...
  • Page 40 BÜCHI Rotavapor R-220 8 Spare Parts and Accessories Component Ordering No. Water Valve Water valve cpl. 41191 T-piece 26835 Installation Instructions! 1) Switch the unit OFF. 2) Connect the water valve to the water cock. With optional bath replenishment 3) Connect the water hose...
  • Page 41 BÜCHI Rotavapor R-220 8 Spare Parts and Accessories Component Ordering No. Support for Controller Support for controller, complete 41223 Installation Instructions! 1) Remove the cover 2) Fasten the support using the bolt supplied with the unit Fig. 47: Support for the controller...

  • Page 42: Appendix

    BÜCHI Rotavapor R-220 9 Appendix Appendix Technical Data R-220 Power Connection 4.2 kW Connection Voltage 200 V / 230 V / 400 V Evaporator output Up to 4 l/h water, higher for other solvents (depending on the heat of evaporation)

  • Page 43: Error Messages

    BÜCHI Rotavapor R-220 9 Appendix Error Messages Error messages indicate a defect on the unit and are signalled on the bath temperature display. They appear with an “E” at the start, followed by a specific number: E0 : Message: Output from the bath sensor not within the valid range.

  • Page 44: Fcc Requirements (For Usa And Canada)

    9 Appendix BÜCHI Rotavapor R-220 FCC requirements (for USA and Canada) English: This equipment has been tested and found to comply with the limits for a Class A digital device, pusuant to both Part 15 of the FCC Rules and the radio interference regulations of the Canadian Department of Communi- cations.

  • Page 45: Declaration Of Conformity

    BÜCHI Rotavapor R-220 9 Appendix Declaration of Conformity BÜCHI Labortechnik AG P.O.Box, CH-9230 Flawil, Switzerland declare on our own responsibility that the product: BÜCHI Rotavapor R-220 to which this declaration refers conforms to the following standards: EN 61010-1:1993 (~ IEC 1010-1, VDE 0411-1)
  • Page 46 BÜCHI Rotavapor R-220 9 Appendix...

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