This manual describes the Extraction System B-811 and provides all information required for its safe
operation and to maintain it in good working order.
It is addressed to laboratory personnel in particular.
Read this manual carefully before installing and running your system and note the safety precautions
in section 2 in particular. Store the manual in the immediate vicinity of the instrument, so that it can be
consulted at any time.
No technical modifications may be made to the instrument without the prior written agreement of
Buchi. Unauthorized modifications may affect the system safety or result in accidents. Technical data
are subject to change without notice.
NOTE
The symbols pertaining to safety (WARNINGS and ATTENTIONS) are explained in section 2.
1 About this manual
This manual is copyright. Information from it may not be reproduced, distributed or used for competitive purposes, nor made available to third parties. The manufacture of any component with the aid of
this manual without prior written agreement is also prohibited.
The English manual is the original language version and serves as basis for all translations into other
languages. If you need another language version of this manual, you can download available versions
at www.buchi.com.
1.1 Reference documents
For information on the Hydrolysis Unit B-411/E-416, the Recirculating Chiller B-740 and the Mixer
B-400, please refer to the corresponding manuals available in English, German, French, Italian and
Spanish
LSV: Large sample volumes
PTFE: Polytetrafluoroethylene
5B-811 Operation Manual, Version G
2 Safety
This chapter points out the safety concept of the instrument and contains general rules of behavior
and warnings from hazards concerning the use of the product.
The safety of users and personnel can only be ensured if these safety instructions and the safetyrelated warnings in the individual chapters are strictly observed and followed. Therefore, the manual
must always be available to all persons performing the tasks described herein.
2.1 User qualification
The instrument may only be used by laboratory personnel and other persons who on account of
training or professional experience have an overview of the dangers which can develop when
operating the instrument.
Personnel without this training or persons who are currently being trained require careful instruction.
The present Operation Manual serves as the basis for this.
2 Safety
2.2 Proper use
The instrument has been designed and built for laboratories. It serves for the extraction (solid-liquid
extraction) of samples with known solvents or solvent mixtures and the reduction or drying of the
extract. Solvents with boiling points between 30 °C and 150 °C as well as inert gas may be used.
It is used for:
Soxhlet Standard•
Soxhlet Warm•
Hot Extraction•
Continuous•
2.3 Improper use
Applications not mentioned above are improper. Also, applications, which do not comply with the
technical data, are considered improper. The operator bears the sole risk for any damages caused by
such improper use.
The following uses are expressly forbidden:
Use of the instrument in rooms which require ex-protected instruments.•
Determination of samples, which can explode or inflame (example: explosives, etc.) due to shock, •
friction, heat or spark formation.
Use with samples that react with solvent.•
Use in conjunction with solvents containing peroxides.•
Use in overpressure situations.•
Use with other glassware than the original from Buchi.•
6B-811 Operation Manual, Version G
2.4 Warning notices used in this manual
WARNING
Generally, the triangular warning symbol indicates the possibility of personal injury or even loss of life
if the instructions are not followed.
WARNING
Hot surface.
WARNING
Electrical hazard.
ATTENTION
With the general “Read this” symbol, ATTENTIONs indicate the possibility of equipment damage,
malfunctions or incorrect process results, if instructions are not followed.
NOTE
Useful tips for the easy operation of the instrument.
2 Safety
2.5 Product safety
The Extraction System B-811 is designed and built in accordance with state-of-the-art technology.
Nevertheless, risks to users, property, and the environment can arise when the instrument is used
carelessly or improperly.
The manufacturer has determined residual dangers emanating from the instrument
if the instrument is operated by insufficiently trained personnel.•
if the instrument is not operated according to its proper use.•
Appropriate warnings in this manual serve to make the user alert to these residual dangers.
2.5.1 Instrument-related hazards
Pay attention to the following safety notices:
WARNING
Potentially hot surfaces during operation, especially at the heating elements (up to 250 °C).
Always be aware of the risk of being burned.•
WARNING
Potentially lethal voltage inside the instrument.
Do not remove covers and other parts protecting from electricity.•
Always keep the areas of electric parts, such as power supply plug, mains switch, etc. dry.•
WARNING
Potential explosion risk if solvent vapors accumulate within the instrument housing.
Always use the instrument in a well ventilated area.•
Beware of damaged or cracked glass parts.•
Beware of damaged seals.•
Beware of incorrect installed or damaged glass valve.•
Beware of the fire hazard.•
7B-811 Operation Manual, Version G
2.5.2 Other hazards
WARNING
Certain solvents in or in the vicinity of the Extraction System B-811 can form peroxides and/or are
highly inflammable.
Always be aware of the explosion risk when working with hazardous substances or with •
substances of unknown composition.
Always provide a good ventilation within or in the vicinity of the system.•
2.5.3 Safety measures
In case a safe operation of the instrument no longer appears possible, the instrument must be shut
down and secured against unintentional operation.
It must be assumed that safe operation is no longer possible:
if there is visible instrument damage,•
following a long period of storage under unfavorable conditions,•
following transport under difficult conditions.•
2 Safety
Always wear personal protective equipment such as protective eye goggles, protective clothing and
gloves when working with the instrument.
2.5.4 Safety elements
Electrics:
The main power switch automatically turns to the zero position (off) if the power supply is overloaded
or a short circuit occurs.
Electronics
The heating elements are equipped with an electronic over-temperature protection.•
If no cooling water is detected at the cooling water output (for example, due to a leak in the •
condenser), the electronic will stop all processes.
The protective shield protects operators from broken glass in case of an accident or explosion.•
An extraction position is only activated if a beaker is in contact with the lower heating element. In •
order to start a program, at least one extraction position must have been activated. If one of the
glass beakers break, the program closes the glass valves and terminates the processing of all
activated heating elements.
If one of the solvent beakers gets dry (e.g. due to a defective seal or an open cooling unit), the •
software turns off the corresponding heating element.
It is possible to release solvent and/or open the gas valve at any time during operation (only appli-•
cable for activated extraction positions).
Only high quality borosilicate 3.3 glass is used. In order to prevent glass breakage, the cooling •
supply connections are threaded and can therefore be screwed on and off.
8B-811 Operation Manual, Version G
2.6 General safety rules
Responsibility of the operator
The head of laboratory is responsible for training his personnel.
The operator shall inform the manufacturer without delay of any safety-related incidents which might
occur during operation of the instrument. Legal regulations, such as local, state and federal laws
applying to the instrument must be strictly followed.
Duty of maintenance and care
The operator is responsible for ensuring that the instrument is operated in proper condition only, and
that maintenance, service, and repair jobs are performed with care and on schedule, and by authorized personnel only.
Spare parts to be used
Use only genuine consumables and genuine spare parts for maintenance to assure good system
performance and reliability. Any modifications to the spare parts used are only allowed with the prior
written permission of the manufacturer.
2 Safety
Modifications
Modifications to the instrument are only permitted after prior consultation with and with the written
approval of the manufacturer. Modifications and upgrades shall only be carried out by an authorized
Buchi technical engineer. The manufacturer will decline any claim resulting from unauthorized modifications.
9B-811 Operation Manual, Version G
3 Technical data
This chapter introduces the reader to the instrument specifications. It contains the scope of delivery,
technical data, requirements and performance data.
3.1 Scope of delivery
Check the scope of delivery according to the order number.
NOTE
For detailed information on the listed products, see www.buchi.com or contact your local dealer.
3.1.1 Standard instrument
3 Technical data
Table 3-1: Standard instrument
ProductOrder number
Extraction System B-811, 230 V36680
Extraction System B-811, 115 V36681
Extraction System B-811, 100 V40550
Table 3-2: LSV instrument
ProductOrder number
Extraction System B-811 LSV, 230 V37900
Extraction System B-811 LSV, 115 V37901
Extraction System B-811 LSV, 100 V40549
Table 3-3: Mixed instrument
ProductOrder number
Extraction System B-811 Standard/LSV
(two positions of each), 230 V
11056621
10B-811 Operation Manual, Version G
3.1.2 Standard accessories
3 Technical data
Table 3-4: Standard/LSV accessories
ProductOrder number
B-811 Standard
Order number
B-811 LSV
4 Extraction chambers3671037902
4 Condensation tubes3748237903
4 Sample holders3655937904
1 Set of solvent beakers (4 pieces)3727638597
1 Set of glass sample tubes
(4 pieces)
Pack of paper thimbles 33 x 94 mm
(6 pieces)
Pack of paper thimbles 43 x 123 mm
(6 pieces)
Set thimble holders 33 x 94 mm
(4 pieces)
8 Holder rings (black ring already
mounted to the extraction chambers
with the seals)
3728137563
41883
41884
37279-
36709
2 Sets of seals for extraction chambers
37388
(4 pieces per set, already mounted
to the extraction chambers with the
holder rings)
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3 Technical data
Table 3-4: Standard/LSV accessories (cont.)
ProductOrder number
B-811 Standard
4 Condensers36711
1 Set of blank plugs (4 pieces)37368
4 Magnetic valves complete36687
Order number
B-811 LSV
Membrane with anchor for valve unit
37534
(included in magnetic valve complete
(36687))
-37905
with holder, order no. 37904, LSV
(1 piece)
Holder for glass sample tubes, PTFE,
51903-
microwavable (6 pos.)
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3 Technical data
Table 3-7: Optional accessories (cont.)
ProductOrder number
B-811 Standard
Order number
B-811 LSV
Holder for glass sample tubes37462-
Set thimble holders 43 x 123 mm
37280-
(4 pieces)
Set thimble holders 33 x 94 mm
37279-
(4 pieces)
Set thimble holders 22 x 80 mm
37278-
(4 pieces)
Set thimble holders 25 x 100 mm
37277-
(4 pieces)
Pack of paper thimbles 33 x 94 mm
41883-
(6 pieces)
Pack of paper thimbles 43 x 123 mm
41884
(6 pieces)
Pack of paper thimbles 25 x 100 mm
41882-
(6 pieces)
Pack of paper thimbles 22 x 80 mm
41881-
(6 pieces)
Star printer 512 serial, complete48258
Printer cable IDP-46028468
Adapter for printer cable IDP-46031411
Ink ribbon for printer IDP-46038683
Ink ribbon for Star printer 51244306
15B-811 Operation Manual, Version G
3 Technical data
Table 3-7: Optional accessories (cont.)
ProductOrder number
B-811 Standard
Paper roll for Star printer 51238684
Set of fluororubber seals (4 pieces)42654
Quartz sand (0.3 - 0.9 mm), 2.5 kg37689
Order number
B-811 LSV
3.2 Technical data overview
Table 3-8: Technical data
Dimensions (L x H x D)600 x 980 x 290 mm
Connection voltage100 - 120 VAC / 200 - 240 VAC
Power consumptionmax. 1250 Wmax. 1250 W
Weight32 kg32.5 kg
Overvoltage categoryIIII
Pollution degree22
Environmental conditions
Temperature
Altitude
Humidity
Paper thimbles 25 x 100 mm
18105
(25 pieces)
Paper thimbles 43 x 123 mm
18106
(25 pieces)
Silicone tubes 6/904133
Silicone tube 12/14, 2 cm04134
Angle01992
LSV upgrade kit (Standard to LSV)37910-
Extraction System B-811Extraction System B-811 LSV variant
600 x 980 x 290 mm
with extended condenser holder
600 x 700 x 290 mm during operation
with extended condenser holder
600 x 700 x 290 mm during opera-
tion
100 - 120 VAC / 200 - 240 VAC
± 10%, 50/60 Hz
for indoor use only
5 – 40 °C
up to 2000 m above sea level
maximum relative humidity 80% for
temperatures up to 31 °C, and then
linearly decreasing to 50% at 40 °C