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Table of Contents
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Summary of Contents for Buchi B-295 SE
- Page 1 Inert Loop B-295 SE Operation Manual...
- Page 2 CH-9230 Flawil 1 E-Mail: quality@buchi.com BUCHI reserves the right to make changes to the manual as deemed necessary in the light of experi- ence, especially with respect to structure, illustrations and technical details. This manual is copyrighted. Information from it may neither be reproduced, distributed, or used for com- petitive purposes, nor made available to third parties.
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Page 3: Table Of Contents
Installation site ........................... 18 Establishing electrical connections .................... 18 Installing the oxygen sensor ...................... 19 Connecting the Inert Loop B-295 SE with a spray drying system............ 20 Installing the exhaust gas hose ...................... 21 Installing the solvent receiving vessel.................... 21 Operation.......................... 23... - Page 4 Taking out of service and disposal.................. 34 Taking out of service.......................... 34 Refrigerant ............................ 34 Disposal ............................. 34 Returning the instrument ........................ 34 Appendix .......................... 35 10.1 Spare parts and accessories ...................... 35 10.1.1 Spare parts .......................... 35 Operation Manual Inert Loop B-295 SE...
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Page 5: About This Document
R This character draws attention to a requirement that must be met before the in- structions below are carried out. This character indicates an instruction that must be carried out by the user. Operation Manual Inert Loop B-295 SE 5/38... -
Page 6: Connected Devices
Trademarks Product names and registered or unregistered trademarks that are used in this docu- ment are used only for identification and remain the property of the owner in each case. 6/38 Operation Manual Inert Loop B-295 SE... -
Page 7: Safety
The instrument is designed and built for laboratories. The instrument can be used for the following tasks: — Condense solvent vapors from the stream of drying gas coming from BUCHI Spray Drying Instruments in closed mode. — Work under inert condition with BUCHI Spray Drying Instruments. -
Page 8: Residual Risks
— Safety-related incidents that occur while using the device should be reported to the manufacturer (quality@buchi.com). BUCHI service technicians Service technicians authorized by BUCHI have attended special training courses and are authorized by BÜCHI Labortechnik AG to carry out special servicing and repair measures. - Page 9 Technical modifications to the device or accessories should only be carried out with the prior written approval of BÜCHI Labortechnik AG and only by authorized BUCHI technicians. BUCHI accepts no liability whatsoever for damage arising as a result of unauthorized modifications. Operation Manual Inert Loop B-295 SE...
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Page 10: Product Description
The spray drying process in closed loop mode generates an inert gas stream loaded with solvent vapors. The Inert Loop B-295 SE is used to condense these solvent va- pors from the gas stream and to monitor its oxygen concentration. -
Page 11: Configuration
Front view Fig. 1: Front view Control elements Oxygen analyzer (See Chapter 3.2.3 "Control ele- (Front cover oxygen analyzer) ments", page 12) Side connections Ventilation slots (See Chapter 3.2.2 "Side connec- tions", page 12) Castor brake Solvent collection flask Operation Manual Inert Loop B-295 SE 11/38... -
Page 12: Type Plate
Signal lamp operation Switch off Set temperature down 3.2.4 Type plate The type plate identifies the instrument. The type plate is located at the left side of the instrument. See Chapter 3.2.2 "Side connections", page 12 12/38 Operation Manual Inert Loop B-295 SE... -
Page 13: Scope Of Delivery
220 ... 240 208 ... 220 200 VAC 200 VAC Fuse (Characteristic) 10 A (T) 10 A (T) 10 A (T) 10 A (T) Frequency 50 Hz 60 Hz 50 Hz 60 Hz Operation Manual Inert Loop B-295 SE 13/38... -
Page 14: Ambient Conditions
2000 m Ambient temperature 5‒40 °C Maximum relative humidity 80 % for temperatures up to 31 °C decreasing linearly to 50 % relative hu- midity at 40 °C Storage temperature max. 40 °C 14/38 Operation Manual Inert Loop B-295 SE... -
Page 15: Materials
Pipe elbow Stainless steel 1.4307 Pressure switch PVDF, Viton, NBR/aramid fiber compos- Oxygen sensor PA, PPS, PTFE, stainless steel Black hoses EPDM Drain tube Woulff bottle Glass Plate heat exchanger Stainless steel solder Operation Manual Inert Loop B-295 SE 15/38... -
Page 16: Transport And Storage
Danger due to incorrect transportation The possible consequences are crushing injuries, cuts and breakages. The instrument should be transported by four persons at the same time. Lift the instrument at the points indicated. 16/38 Operation Manual Inert Loop B-295 SE... - Page 17 BÜCHI Labortechnik AG Transport and storage | 4 Fig. 5: Lifting the instrument Lift the instrument by the base plate next to the castors. Operation Manual Inert Loop B-295 SE 17/38...
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Page 18: Installation
— Put the instrument on the castors. — Make sure that cables / tubes are safe routed. — Make sure the castor brakes are locked. — Place only BUCHI spray dryer on the instrument. — Do not place the instrument near vibration-sensitive devices. NOTE Make sure that the power supply can be disconnected at any time in an emergency. -
Page 19: Installing The Oxygen Sensor
Risk of property damage and diminished performance due to use of un- suitable power cables. The power supply cables supplied with the product by BUCHI precisely match the re- quirements of the device. If other power cables that do not meet those requirements are used, the device may be damaged and/or its performance diminished. -
Page 20: Connecting The Inert Loop B-295 Se With A Spray Drying System
Install the grounding cable. Install the front cover Connecting the Inert Loop B-295 SE with a spray drying system Connect the communication cable to the spray dryer. Connection at the spray dryer see related opera- tion manual. -
Page 21: Installing The Exhaust Gas Hose
Attach the tube in place with a hose clamp. Place the other end of the tubing to a fume hood. Installing the solvent receiving vessel Put the PTFE hose connection on the bottle. Put the solvent receiving vessel in place. Operation Manual Inert Loop B-295 SE 21/38... - Page 22 5 | Installation BÜCHI Labortechnik AG Install the PTFE hose onto the condensate drain valve. Open the condensate drain valve. Make sure that the lever of the condensate drain valve is in the position indicated. 22/38 Operation Manual Inert Loop B-295 SE...
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Page 23: Operation
All following functions of the instrument are controlled by the spray drying system. Tasks during spray drying Check the filling level of the solvent receiving vessel. ð If necessary empty it. See Chapter 7.3 "Empty the solvent receiving vessel", page 28 Operation Manual Inert Loop B-295 SE 23/38... -
Page 24: Shutting Down The Instrument
R The instrument is shut down. See Chapter 6.4 "Shutting down the instrument", page 24 Press the button Stop. Disconnect the communication cable. Disconnect the power cable. Setting condenser temperature Increase temperature Press the button UP. Decrease the temperature Press the button DOWN. 24/38 Operation Manual Inert Loop B-295 SE... -
Page 25: Cleaning And Servicing
Any servicing and repair work which involves opening up the casing may only be car- ried out by BUCHI service technicians. Use only genuine BUCHI consumables and spare parts in order to ensure correct operation of the device and preserve the warranty. - Page 26 Place the end of the exhaust gas tube in a top position. Fill in about 2 liter cleaning liquid (e.g. ethanol) into the process gas tube connected to the connection marked IN until the liquid reaches the exhaust connection. Wait 5 minutes. 26/38 Operation Manual Inert Loop B-295 SE...
- Page 27 Install the inlet tube to the connected spray dryer. See Chapter 5.5 "Connecting the Inert Loop B-295 SE with a spray drying system", page 20 Place the end of the exhaust gas tube to a fume hood.
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Page 28: Empty The Solvent Receiving Vessel
Empty the solvent receiving vessel Close the condensate drain valve. Disconnect the solvent receiving vessel. Remove the solvent receiving vessel from the instrument. Empty the solvent receiving vessel. Install the solvent receiving vessel in revers order. 28/38 Operation Manual Inert Loop B-295 SE... -
Page 29: Help With Faults
Fig. 6: Control elements oxygen sensor Display DECREMENT INCREMENT ENTER MENU NOTE To abort the calibration process press the button MENU. Open the front cover oxygen sensor. Remove the grounding cable from the front cover oxygen sensor. Operation Manual Inert Loop B-295 SE 29/38... - Page 30 ð The span value will be displayed on exit as % of the initial calibration value. ð The calibration is passed when the value is between 20 and 21. ð The calibration is finished. 30/38 Operation Manual Inert Loop B-295 SE...
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Page 31: Changing The Oxygen Sensor
Install the grounding cable. Install the front cover. Changing the oxygen sensor 8.2.1 Removing the oxygen sensor Open the front cover oxygen sensor. Remove the grounding cable from the front cover oxygen sensor. Operation Manual Inert Loop B-295 SE 31/38... -
Page 32: Installing The Oxygen Sensor
"Removing the oxygen sensor", page 31 Remove the foil from the oxygen sensor. Install the new oxygen sensor. Reconnect the sensor cable. Calibrate the sensor. See Chapter 8.1 "Cali- brating the oxygen analyzer", page 29 32/38 Operation Manual Inert Loop B-295 SE... -
Page 33: Error Messages
Wait until the instrument is in ambient temper- ature. Remove dust and foreign objects from the ventilation slots using compressed air or a vacuum cleaner. Switch on the instrument. Contact BUCHI Customer Service. Operation Manual Inert Loop B-295 SE 33/38... -
Page 34: Taking Out Of Service And Disposal
When disposing, observe the disposal regulations of the materials used. Materials used see Chapter 3.4 "Technical data", page 13 Returning the instrument Before returning the instrument, contact the BÜCHI Labortechnik AG Service Depart- ment. https://www.buchi.com/contact 34/38 Operation Manual Inert Loop B-295 SE... -
Page 35: Appendix
Appendix 10.1 Spare parts and accessories Use only genuine BUCHI consumables and spare parts in order to ensure correct, safe and reliable operation of the system. NOTE Any modifications of spare parts or assemblies are only allowed with the prior written permission of BUCHI. - Page 36 10 | Appendix BÜCHI Labortechnik AG Order no. Image Receiving vessel for solvent 040398 36/38 Operation Manual Inert Loop B-295 SE...
- Page 38 T +971 4 313 2860 T +52 55 9001 5386 F +66 2 862 08 54 F +971 4 313 2861 latinoamerica@buchi.com bacc@buchi.com middleeast@buchi.com www.buchi.com/es-es www.buchi.com/th-th www.buchi.com We are represented by more than 100 distribution partners worldwide. Find your local representative at: www.buchi.com...
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