BUCHI B-414 Scrubber Operation Manual

Operation Manual
Scrubber
B-414
96701 en
Table of contents
Table of contents
1
2
3
4
About this manual . . . . . . . . . . . . . . . . . . . . . .
1.1
Reference documents . . . . . . . . . . . . . . . . .
1.2
Abbreviations . . . . . . . . . . . . . . . . . . . . .
Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1
User qualification . . . . . . . . . . . . . . . . . . .
2.2
Proper use . . . . . . . . . . . . . . . . . . . . . .
2.3
Improper use . . . . . . . . . . . . . . . . . . . . .
2.4
Warning notices used in this manual . . . . . . . . .
2.5
Product safety. . . . . . . . . . . . . . . . . . . . .
2.5.1 Instrument-related hazards . . . . . . . . . . . . . .
2.5.2 Other hazards . . . . . . . . . . . . . . . . . . . . .
2.5.3 Safety measures . . . . . . . . . . . . . . . . . . .
2.5.4 Safety elements . . . . . . . . . . . . . . . . . . . .
2.6
General safety rules . . . . . . . . . . . . . . . . . .
Technical data . . . . . . . . . . . . . . . . . . . . . . . .
3.1
Scope of delivery . . . . . . . . . . . . . . . . . . .
3.1.1 Standard instrument. . . . . . . . . . . . . . . . . .
3.1.2 Scrubber with condenser . . . . . . . . . . . . . . .
3.1.3 Scrubber with cold trap . . . . . . . . . . . . . . . .
3.1.4 Scrubber complete with condenser and reaction stage
3.1.5 Standard accessories . . . . . . . . . . . . . . . . .
3.1.6 Optional accessories . . . . . . . . . . . . . . . . .
3.1.7 Upgrade. . . . . . . . . . . . . . . . . . . . . . . .
3.2
Technical data overview . . . . . . . . . . . . . . . .
3.3
Materials used. . . . . . . . . . . . . . . . . . . . .
3.4
Recommended consumables . . . . . . . . . . . . .
Description of function . . . . . . . . . . . . . . . . . . .
4.1
Functional principle of the Scrubber . . . . . . . . . .
4.2
Scrubber capacity. . . . . . . . . . . . . . . . . . .
4.3
Condenser . . . . . . . . . . . . . . . . . . . . . .
4.4
Cold trap . . . . . . . . . . . . . . . . . . . . . . .
4.5
External receiving vessel (option) . . . . . . . . . . .
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.5
.5
.5
.6
.6
.6
.6
.7
.7
.7
.8
.8
.8
.9
10
10
10
10
11
11
12
12
13
13
13
14
15
15
16
17
17
18
Read this manual carefully before installing and running your system and note the safety precautions
in chapter 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.
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.
If you need another language version of this manual, you can download it at
www.buchi.com.
3
B-414 Operation Manual, Version D
Table of contents
5
6
7
8
9
10
11
4
Putting into operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1
Installation site. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2
General commissioning procedure for all Scrubber models . . . . . . . . . . .
5.3
Commissioning the Scrubber with condenser / cold trap and reaction vessel . .
5.4
External receiving vessel (optional). . . . . . . . . . . . . . . . . . . . . . . .
5.5
Hose connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5.1 Hose connections of the basic model . . . . . . . . . . . . . . . . . . . . . .
5.5.2 Hose connections for Scrubber with condenser / cold trap . . . . . . . . . . .
5.5.3 Hose connections for Scrubber with condenser / cold trap and reaction vessel .
5.6
Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7
Preparing washing solutions. . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7.1 Washing solutions for acidic vapors and gases . . . . . . . . . . . . . . . . .
5.7.2 Washing solutions for alkaline vapors and gases . . . . . . . . . . . . . . . .
5.7.3 Color indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.8
Filling up the prepared washing solution . . . . . . . . . . . . . . . . . . . . .
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1
Typical applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1
Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2
Glass parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3
Tubes / tube connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4
Sealing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4.1 Cleaning the seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4.2 Replacing the seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.5
Washing insert . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.6
Washing solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.7
Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.8
Power supply fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.9
Silencer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.10 Functional test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.11 Customer service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1
Malfunctions and their remedy . . . . . . . . . . . . . . . . . . . . . . . . .
Shutdown, storage, transport and disposal . . . . . . . . . . . . . . . . . . . . .
9.1
Storage and transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.1 Spare parts on the exploded instrument view . . . . . . . . . . . . . . . . . .
10.2 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Declarations and requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.1 FCC requirements (for USA and Canada) . . . . . . . . . . . . . . . . . . . .
11.2 Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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19
19
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23
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38
B-414 Operation Manual, Version D
1
1
About this manual
About this manual
This manual describes the Scrubber and provides all information required for its safe operation and to
maintain it in good working order.
It is adressed to laboratory personnel in particular.
NOTE
The symbols pertaining to safety (WARNINGS and ATTENTIONS) are explained in chapter 2.
1.1
Reference documents
For information on the Digest System, the Digest Automat, and the Digest Unit, please refer to the
corresponding manuals available in English, German, French, Italian and Spanish
•
•
•
•
1.2
Digest System K-437, Operation Manual numbers 96760 - 96764
Digest Automat K-438, Operation Manual numbers 96765 - 96769
Digestion Unit K-424, Operation Manual numbers 96710 - 96714
Digestion Unit K-435, Operation Manual numbers 96720 - 96724
Abbreviations
CR: Chloroprene Rubber
EPDM: Ethylene Propylene Dimonomer
FEP: Fluorinated Ethylene Propylene
FPM: Fluoroelastomer
pa: pro analysis
PA: Polyamides
PMMA: Polymethylmethacrylate
POM: Polyoxymethylene
PP: Polypropylene
PPS: Polyphenylenesulfide
PTFE: Polytetrafluoroethylene (Teflon)
PUR: Polyurethanes
5
B-414 Operation Manual, Version D
2
2
Safety
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.
2.2
Proper use
The instrument has been designed and built for laboratories. It serves for the neutralization and
adsorption of gases that arise during chemical reactions and syntheses.
Only gases with known chemical composition may be drawn off.
2.3
Improper use
Applications not mentioned above are improper. Also, applications, which do not comply with the
technical data, are considered improper. In particular no gases with unknown chemical composition
may be drawn off.
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.
• Use on samples, which can explode or inflame (example: explosives, etc.) due to shock, friction,
heat or spark formation.
• Use in overpressure situations.
• Drawing off liquids.
• Drawing off solvents.
• Drawing off vapors of organic solvents.
• Use for cleaning of room air.
6
B-414 Operation Manual, Version D
2
2.4
Safety
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.
WARNING
Biohazard.
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.
2.5
Product safety
The Scrubber is designed and built in accordance with current 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
Potential implosion risk if used with damaged glassware.
• Beware of damaged or cracked glass parts.
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 the fire hazard.
7
B-414 Operation Manual, Version D
2
2.5.2
Safety
Other hazards
WARNING
Certain solvents in or in the vicinity of the Scrubber 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.
WARNING
Risk of implosion when operating the instrument with an external pump and excess pressure on the
overpressure valve.
• Always operated the instrument with the build-in pump and do not use an external pump.
WARNING
Risk of acidic vapors forming in the vicinity of the instrument when the washing solution is not
exchanged regularly.
• Always use a color indicator to judge the state of the washing solution and exchange the solution
as soon as the color indicator undergoes a color change.
2.5.3
Safety measures
Always wear personal protective equipment such as protective eye goggles, protective clothing and
gloves when working with the instrument.
2.5.4
Safety elements
• Overpressure valve
• The protective disc on top of the washing insert and the protective cover with the protective shield
to be mounted at the neutralization vessel protects operators from broken glass and solvent
splashes.
8
B-414 Operation Manual, Version D
2
2.6
Safety
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.
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.
9
B-414 Operation Manual, Version D
3
3
Technical data
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
Table 3-1: Standard instrument
Product
Order number
B-414 Scrubber, standard
3.1.2
230 V / 50 Hz
37876
120 V / 60 Hz
37877
100 V / 50/60 Hz
37878
1 adsorption vessel, complete
38128
1 hose, adsorption / pump
37885
Scrubber with condenser
Table 3-2: Scrubber with condenser
10
Product
Order number
230 V / 50 Hz
37882
120 V / 50 Hz
37883
100 V / 60 Hz
37884
1 condenser unit
37775
3 tube connectors, bent with screw cap
32885
1 silicone hose Ø 6/9
04133
1 spring ring
37872
1 holder ring for receiving vessel
36709
1 seal for receiving vessel
37873
1 receiving vessel 1.2 l
37776
1 hose, condenser / lye
37888
1 adsorption vessel, complete
38128
1 hose, adsorption / pump
37885
B-414 Operation Manual, Version D
3
3.1.3
Technical data
Scrubber with cold trap
Table 3-3: Scrubber with cold trap
3.1.4
Product
Order number
230 V / 50 Hz
37879
120 V / 50 Hz
37880
100 V / 50/60 Hz
37881
1 cold trap complete
38083
3 tube connectors, bent with screw cap
32885
1 receiving vessel 1.2 l
37776
1 spring ring
37872
1 holder ring for receiving vessel
36709
1 seal for receiving vessel
37873
1 hose, condenser / lye
37888
1 adsorption vessel, complete
38128
1 hose, adsorption / pump
37885
Scrubber complete with condenser and reaction stage
Table 3-4: Scrubber complete with condenser and
reaction stage
Product
Order number
230 V / 50 Hz
37988
120 V / 50 Hz
37989
100 V / 50/60 Hz
37990
1 condenser unit
37775
3 hose connections bent with screw caps 32885
11
1 silicone hose Ø 6/9
04133
1 spring ring
37872
1 holder ring for receiving vessel
36709
1 seal for receiving vessel
37873
1 receiving vessel 1.2 l
37776
1 hose, condenser / lye
37888
1 adsorption vessel, complete
38128
1 hose, adsorption / reaction
37887
1 reaction stage
37956
B-414 Operation Manual, Version D
3
3.1.5
Technical data
Standard accessories
Table 3-5: Standard accessories
Product
Order number
1 neoprene hose
10021
1 power cable
Type CH
10010
Type Schuko / Japan
10016
Type GB
17835
Type USA
33763
Type AUS
17836
Operation Manual:
3.1.6
English
96701
German
96700
French
96702
Italian
96703
Spanish
96704
Optional accessories
Table 3-6: Optional accessories
12
Product
Order number
1 condenser unit
37775
1 cold trap complete
38083
1 condensate drain
37785
1 reaction vessel
37797
1 lip gasket, acid-resistant
38064
1 hose, adsorption / pump
37885
1 hose, reaction / pump
37886
1 hose, adsorption / reaction
37887
1 hose, condenser / washing solution
37888
1 connection cable B-414 / Digestion
Units, Control Unit
14738
Set large receiving vessel 4 l
48668
B-414 Operation Manual, Version D
3
3.1.7
Technical data
Upgrade
Table 3-7: Upgrade possibilities
3.2
Product
Order number
1 condenser with receiving vessel 1.2 l,
complete
37954
Cold trap with receiving vessel 1.2 l,
complete
37955
1 reaction stage, complete
37956
Technical data overview
Table 3-8: Technical data
Scrubber Unit B-414
3.3
Dimensions (L x H x D)
260 x 450 x 480 mm
Weight
13 kg
Power system voltage / frequency
230 V ± 10 % / 50 Hz
120 V ± 10 % / 60 Hz
100 V ± 10 % / 50/60 Hz
Ambient temperature
For indoor use only, altitude up to 2000 m above seal
level, maximum relative humidity 80 %, 5 - 40 °C
Pump suction capacity
34 l/min
Overvoltage category
II
Pollution degree
2
Power consumption
200 W
Current consumption (230 V)
1.5 A
140 W
100 W
100 W
Materials used
Table 3-9: Materials used
Component
Material designation
Housing
PUR
Minor hardware
PP, PA, POM
Lip gasket acid- / lye-resistant
FPM, EPDM
Gasket
PTFE, CR
Protective disc
PMMA
Glass parts
Borosilicate 3.3
Pump
PPS, CR, FPM
Hoses
CR, FEP
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B-414 Operation Manual, Version D
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3.4
Technical data
Recommended consumables
Table 3-10: Active charcoal for adsorption vessel
Product
Order number Fluka / Merck
Fluka, purum p.a. 4 - 8 mm
05110
Merck, granulated
102518
Table 3-11: Color indicator for washing solution
Product
Order number Merck
Bromothymol blue, Merck
3026
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B-414 Operation Manual, Version D
4
4
Description of function
Description of function
This chapter explains the basic principle of the instrument, shows how it is structured and gives a
functional description of the assemblies.
The pump draws off the gases and vapors produced in chemical reactions via a condenser or a cold
trap providing a receiving vessel underneath.
The condensation stage is used as a preliminary extractor for vapors, water steam (to prevent
warming or an increase in volume of the washing solution) and for the liquids carried along with them,
thus extending the service life of the neutralization stage.
The acid or alkaline gases are washed and neutralized in the neutralization stage.
The next stage, the adsorption stage, holds back most of the undesired particles by means of
granules of activated charcoal or a universal adsorption granulate. It also enables the aerosols to
recondensate.
In the reaction stage that follows specific redox reactions are accomplished.
The built-in overpressure valve makes sure that a certain pressure limit is not exceeded. The used air
is directly lead into an exhaust or into the open air through a silencer.
4.1
Functional principle of the Scrubber
2
4
3
1
5
Receiving vessel
Condenser (or cold trap)
Reaction tubelet
Adsorption vessel
Neutralization vessel
Fig. 4.1: Overview over the Scrubber
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B-414 Operation Manual, Version D
4
Description of function
Adsorption
4
1
PUMP
6
3
2
5
Condensation
Neutralisation
Condenser or cold trap
Receiving vessel
Neutralization vessel with washing solution
Reaction stage
Adsorption vessel with adsorbents
Reaction stage
Fume exhaust pump
Fig. 4.2: Functional principle of the Scrubber
Condensation stage
• Condensation of vapors
• Condensation of water steam (prevention of warming or an increase in volume of the washing solution)
• Condensation of the liquids carried along
Neutralization stage
• Neutralization of acid or alkaline gases
Adsorption stage
• Specific adsorptions and retention of particles (using granules of activated charcoal or a universal
adsorption granulate)
• Recondensation of aerosols
Reaction stage
• Specific reactions (e.g., redox reactions)
4.2
Scrubber capacity
The suction capacity of the Scrubber B-414 is designed for Digestion Units with a maximum of 20
sample tubes.
Connection examples:
•
•
•
•
16
Connection of up to two Digestion Units K-424 (6 places each)
Connection of one Digestion Unit K-435 (12 places)
Connection of one Digest Automat K-438 (20 places)
Connection of one Digest System K-437 (20 places)
B-414 Operation Manual, Version D
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4.3
Description of function
Condenser
3
1
2
4
Cooling water out
Connection to neutralization stage
Emission in (connection to emission source)
Cooling water in
Fig. 4.3: Connections of the condenser
4.4
Cold trap
2
1
Emission in (connection to emission source)
Connection to neutralization stage
Fig. 4.4: Connections of the cold trap
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B-414 Operation Manual, Version D
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4.5
Description of function
External receiving vessel (option)
A large receiving vessel for up to 4 l is optionally available. It serves for the digestion of high volumes of
water samples.
Fig. 4.5: External receiving vessel
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B-414 Operation Manual, Version D
5
5
Putting into operation
Putting into operation
This chapter describes how the instrument is installed and gives instructions on initial startup.
NOTE
Inspect the instrument for damages during unpacking. If necessary, prepare a status report immediately to inform the postal company, railway company or transportation company.
Remove the transprotation lock at the bottom of the instrument.
Keep the original packaging for future transportation.
5.1
Installation site
Install the instrument on a clean, flat and stable base.
ATTENTION
To ensure the instrument safety do not place any object on top of it.
ATTENTION
Place the Scrubber B-414 on the left side of a digestion unit (e.g. Digestion Unit K-424, K-435,
Digest System K-437 or Digest Automat K438). The Scrubber ventilation is located on the left side. In
case the Scrubber is placed on the right side of another unit, cool air will hit the digestion sample and
cool it down, so that no digestion can take place.
5.2
General commissioning procedure for all Scrubber models
To commission the Scrubber B-414, proceed as follows:
• Apply the protective cover and shield to the neutralization vessel.
• Make sure that the silencer is filled with cotton wool and install it.
• Check the glass for flaws and cracks.
• Check the seals and gaskets (embrittlement, scratches). If they are not OK, take them out and
replace them (see also chapter 7).
• Carefully insert the glass parts using a clamping ring (without pressure from above). Otherwise
there is a risk of damaging the glassware.
NOTE
When you carry out Kjeldahl digestions, the suction capacity might become too high. Therefore we
recommend to fill activated charcoal into the adsorption vessel and to add glass wool at both ends.
The glass wool prevents charcoal from being drawn into the vacuum pump. The activated charcoal
should be grainy with a particle size of 2 to 6 mm.
Fig. 5.1: Adsorption vessel with activated charcoal and glass wool
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B-414 Operation Manual, Version D
5
5.3
Putting into operation
Commissioning the Scrubber with condenser / cold trap and reaction vessel
To prepare the complete Scrubber model for operation, proceed as follows:
• Insert the white PTFE gasket into the holder ring for the receiving vessel, so that it fits properly into
it on both sides.
• Press the holder ring into the gap provided for condenser / cold trap and receiving vessel.
• Apply the spring ring to the bottom of the condenser / cold trap (the cooling water / contaminated
air inlet must be at the bottom) and introduce the condenser into the holder ring.
• Screw the receiving vessel counterclockwise into the holder ring underneath the condenser.
Spring ring
Holder ring
Gasket PTFE
3
1
2
Fig.5.2: Connection between condenser and receiving vessel
• Insert the reaction vessel into the housing from below.
• Insert the introduction tube of the reaction tubelet into the reaction vessel and screw it in tightly.
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B-414 Operation Manual, Version D
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5.4
Putting into operation
External receiving vessel (optional)
To commission the optional external receiving
vessel, proceed as follows:
• Connect the one end of the adapter (FEP
hose) to the bottom of the condenser.
• Connect other side of the adapter to the
external receiving vessel and fasten the
connection with the black screw caps.
Fig.5.3: Connecting the external receiving vessel
ATTENTION
Do not use plastic tanks for the collection of condensate but only original glass vessels from Buchi.
• The diameter of the connection between the outlet and the receiving vessel must not be less than
10 mm.
• The materials used must be resistant to the condensate and must withstand a vacuum of 100
mbar.
5.5
Hose connections
NOTE
Use clips and cable ties where necessary to secure the cables in place.
5.5.1
Hose connections of the basic model
The basic model consists of the neutralization and the adsorption vessel.
To establish the hose connections, proceed as follows:
• Connect the adsorption vessel to the distribution head and secure with tube connectors GL-14 at
both ends.
• Connect the emission source via a Woulff bottle to the neutralization vessel.
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B-414 Operation Manual, Version D
5
3
Putting into operation
1
2
4
5
Neutralization stage
Connection of the neutralization vessel
Adsorption vessel
Distribution head
Silencer
Fig. 5.4: Hose connections of the basic model
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B-414 Operation Manual, Version D
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5.5.2
Putting into operation
Hose connections for Scrubber with condenser / cold trap
To establish the hose connections, proceed as follows:
•
•
•
•
Put tube connectors GL-14 on all PTFE hoses.
Connect the emission source to the condenser / cold trap inlet (position in Fig. 5.2 ).
Connect the condenser / cold trap outlet (position in Fig. 5.2) to the neutralization vessel.
Connect the adsorption vessel to the distribution head.
1
2
10
3
6
7
9
8
4
5
Neutralization stage
Adsorption vessel
Reaction stage
Distribution head
Silencer
Inlet from emission source
Outlet to neutralization vessel
Cooling water inlet (bottom)
Cooling water outlet (top)
Condenser
Fig. 5.5: Hose connections for Scrubber with condenser / cold trap
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B-414 Operation Manual, Version D
5
5.5.3
Putting into operation
Hose connections for Scrubber with condenser / cold trap and reaction vessel
To establish the hose connections, proceed as follows:
•
•
•
•
•
Put tube connectors GL-14 on all PTFE hoses.
Connect the emission source to the condenser / cold trap inlet (position in Fig. 5.3 ).
Connect the condenser / cold trap outlet (position in Fig. 5.3) to the neutralization vessel.
Connect the adsorption vessel to the top of the reaction tubelet.
Connect the reaction tubelet (connection at the front) to the distribution head
2
1
10
3
6
7
9
8
4
5
Neutralization stage
Adsorption vessel
Reaction stage
Distribution head
Silencer
Inlet from emission source
Outlet to neutralization vessel
Cooling water inlet (bottom)
Cooling water outlet (top)
Condenser
Fig. 5.6: Hose connections for Scrubber with condenser / cold trap and reaction vessel
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B-414 Operation Manual, Version D
5
5.6
Putting into operation
Electrical connections
ATTENTION
Make sure that the voltage on the socket corresponds to the voltage given on the type plate of the
instrument.
Always connect the instrument to an earthed socket. External connections and extension cables
must be provided with an earthed conductor lead (3-pole couplings, cable or plug equipment) as the
mains lead has a molded plug, thus avoiding risks due to inadvertent defective wiring.
Make sure that no electric sparks form in the instrument or its surroundings as they might damage
the instrument.
Connect the Scubber B-414 to the mains with the power cord contained in the scope of delivery.
To start the Scrubber automatically at the same time the digestion process starts, connect it to the
Control Unit B-436, to a Digest System K-437 or to a Digest Automat K-438 with the optional connection cable.
5.7
Preparing washing solutions
ATTENTION
Always wear personal protective equipment such as protective eye goggles, protective clothing and
gloves when working with washing solutions.
5.7.1
Washing solutions for acidic vapors and gases
• Sodium hydroxide 8-10 %, max. 20 %
• Sodium carbonate
– dissolve 600 g Na2CO3 in 3 l distilled warm water, or
– dissolve 1.7 kg Na2CO3 · 10H2O in 3 l distilled warm water
5.7.2
Washing solutions for alkaline vapors and gases
• Hydrochloric acid, max. 15%
• Sulphuric acid, max. 20%
Depending on the area of application, it is recommended to use different washing solutions or concentrations. The B-414 Scrubber is supplied ex works with a lye-resistant lip gasket. For operating with
acid washing solutions, an acid-resistant lip gasket should be used.
5.7.3
Color indicator
A color indicator is added to the washing solution to assess its washing power visually as well.
We recommend to use 100 mg of color indicator for 3 l of washing solution.
Bromothymol blue serves as a standard indicator. The transition area here is between pH 6.0 to 7.6.
Thus the fresh solution has a blue color while the neutralized or acidic solution has an orange yellowish
color.
Depending on the application purpose, other suitable color indicators should be used.
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B-414 Operation Manual, Version D
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5.8
Putting into operation
Filling up the prepared washing solution
To fill up the washing solution, proceed as follows:
Remove the adsorption vessel by gently pulling it upwards.
Loosen the tube connector GL-14 at the neutralization vessel and pull off the hose.
Remove the protective cover with the protective shield.
Remove the protective disc with the washing insert from the neutralization vessel.
Carefully pour the washing solution into the washing vessel and fill up to the wavy maximum filling
mark.
• Reassemble the instrument in the reverse order.
•
•
•
•
•
1
2
3
5
4
Adsorption vessel
Nut GL-14
Protective cover with protective shield
Washing insert
ON/OFF switch
Fig. 5.7: Filling up the washing solution
NOTE
For information on how and when to exchange the washing solution, see chapter 7.6
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B-414 Operation Manual, Version D
6
6
Operation
Operation
This chapter gives examples of typical instrument applications and instructions on how to operate the
instrument properly and safely.
WARNING
Risk of injury.
• Never operate the instrument when glassware is damaged.
ATTENTION
Switch on the B-414 before a connected instrument produces gases.
6.1
Typical applications
Table 6-1: Typical applications
Gases and vapors
Chemical formula
Neutralization (stage 2)
Kjeldahl digestions
SO2, H2SO4
saturated soda / NaOH
8 - 10 % (max. 20 %)
Sulfur dioxide
SO2
saturated soda / NaOH
8 - 10 % (max. 20 %)
Sulfuryl chloride
SO2Cl2
NaOH 8 - 10 % (max. 20 %)
Hydrochloric or hydrobromic acids
HCI, HBr
NaOH 8 - 10 % (max. 20 %)
Thionyl chloride
SOCl2
NaOH 8 - 10 % (max. 20 %)
Cyanuric chloride
C3N3Cl3
NaOH 8 - 10 % (max. 20 %)
Carbonic acid chloride
R-COCI
NaOH 8 - 10 % (max. 20 %)
Phosgene
COCI2
NaOH 8 - 10 % (max. 20 %)
Specific reactins (stage 4)
Ammonia
NH3
HCI max. 15 % / H2SO4 max. 20 %
Nitrous oxides (nitrous
gases)
Nitric acid / aqua regia
NOX
NaOH 20 %
FESO4 saturated
Chlorine, bromine, iodine
Cl2, Br2, J2
NaOH 8 - 10 % (max. 20 %)
FESO4 saturated
Thiophenols
Ar-SH
NaOH 8 - 10 % (max. 20 %)
KMnO4 saturated
Thioalcohols, mercaptan
R-SH
NaOH / javelle water
KMnO4 saturated
Hydrogen sulphide
H 2S
NaOH 8 - 10 % (max. 20 %)
KMnO4 saturated
Carbon disulphide
CS2
NaOH 8 - 10 % (max. 20 %)
KMnO4 saturated
Prussic acid
HCN
NaOH 8 - 10 % (max. 20 %)
KMnO4 saturated
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B-414 Operation Manual, Version D
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6.2
Operation
Operation
2
• Switch on the power switch .
• Make sure that the cooling water flow rate
does not exceed 60 l/h.
• The suction performance can be regulated
during operation by drilling a 0.1 - 0.3 mm
wide hole in the screw cap GL-14 (e.g.
when samples are getting dry).
• Carry out a functional test as described in
chapter 7.10.
1
Fig. 6.1.: Operation
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B-414 Operation Manual, Version D
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7
Maintenance and repairs
Maintenance
This chapter gives instructions on all maintenance work to be performed in order to keep the instrument in good working condition.
WARNING
Electrical hazard:
• Prior to all maintenance work on the instrument switch off the power supply and remove all
sources of flammable vapor.
ATTENTION
Always wear personal protective equipment such as protective eye goggles, protective clothing and
gloves when maintaining the instrument.
7.1
Housing
Check the housing for defects (switches, plugs) and clean it regularly with a damp cloth.
ATTENTION
Never use solvents as cleaning agents as these might damage the instrument.
7.2
Glass parts
The glass parts can be taken out and cleaned with commercially available cleaning agents or in an
ultrasonic bath. After the glass parts have been cleaned and fully dried, check each part visually for
cracks, scratches and for any parts or sections that might have splintered off. Take out and replace
any damaged glass parts.
7.3
Tubes / tube connectors
Visually examine the tube connections regularly. When tubes become cracked and brittle, replace
them with new tubes.
Grease all joints on the condenser side regularly to achieve optimum tightness of the system.
Flush out the tubes regularly with water or ethanol.
7.4
Sealing system
ATTENTION
When removing and reinstalling the seals and gaskets, make sure not to damage them. Always move
them perpendicularly to the axis of the glass parts and ensure no damage occurs to the sealing lip.
Never apply grease to the seals and never touch them with sharp object, otherwise they will get
damaged.
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B-414 Operation Manual, Version D
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7.4.1
Maintenance and repairs
Cleaning the seals
To prolong the lifetime of the seals, rinse them regularly with water, especially if working with crystalline
products. Afterwards, dry them with a solft cloth. To remove the seals, see Fig. 7.1.
7.4.2
Replacing the seals
Seals are subject to wear and tear, thus you should check them regularly and replace them, if necessary, e.g. if they do not pass the functional test described in chapter 7.8 anymore.
We recommend to replace the seals as follows:
Table 8-1: General malfunction and their remedy
7.5
Position in Fig. 9.1
Order no.
Description
Replacing interval
--
40029
Set of seals EPDM for tube connectors
once a year
8
37928
O-ring to adapter (37777)
once a year
13
03575
Gasket SVL 42 x 30 PTFE
once a year
17
03576
Gasket SVL 22 x 16 PTFE
once a year
19
38225
Hose seal
once a year
23
37873
Seal for receiving vessel
once a year
34
37925
Gasket ring
once a year
38
37871
Silencer unit
once a year
Washing insert
The washing insert must be cleaned from time to time and the lip gasket must be replaced when
brittle.
7
6
5
4
2
3
2
1
Nut M20
Swirl disc
Spacer tube
Swirl disc holder
Lip gasket
Protective disc
Tube connector adapter M20 GL-14
Fig. 7.1. Exploded view of the washing insert
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B-414 Operation Manual, Version D
7
Maintenance and repairs
To (re)assemble the washing insert, proceed as follows:
•
•
•
•
•
•
•
•
•
•
7.6
Insert the lip gasket into the protective disc .
Place the protective disc on the swirl disc holder .
Screw on the adapter and tighten it.
Insert the first swirl disc .
Insert the spacer tube .
Insert the second swirl disc .
Screw the washing insert into the adapter .
Introduce the washing insert into the neutralisation vessel.
Put on the protective disc.
Put on the protective cover with shield and center the neutralization vessel.
Washing solution
Used washing solutions may impair the functionality of the B-414 Scrubber especially in the range of
the neutralization point as a result of strong foaming. Changing the washing solution in appropriate
time (when the color indicator ongoes a color change) keeps the adsorption stage and/or reaction
stage from getting soiled and prevents the possibility of the pump getting damaged. For a discription
of how to prepare and fill up the washing solution, see chapter 5.7.
NOTE
Make sure to dispose of the used washing solution according to your laboratory guidelines.
7.7
Pump
To flush the pump, proceed as follows:
• Take off the silencer and flush out the
pump with distilled water through the
secondary air valve .
• Switch on the instrument and collect the
waste water in a suitable vessel .
2
1
4
3
Fig. 7.2: Flushing the pump
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B-414 Operation Manual, Version D
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7.8
Maintenance and repairs
Power supply fuses
2
1
To replace the power supply fuses, proceed as
follows:
• Pull out the power supply cable.
• Remove the fuse holder .
• Replace the defective fuse with a new fuse of the same type:
– 100 V: T 2.0 A L 250 V
– 120 V: T 1 A L 250 V
– 230 V: T 1 A L 250 V
• Put the fuse holder back.
Fig. 7.3: Replacing the power supply fuses
7.9
Silencer
Replace the silencer once a year.
7.10
Functional test
To check whether the overpressure valve functions properly, screw off the left tube connector at the
distribution head and put a finger on the opening. After the overpressure valve has switched, a change
of sound is audible.
The system is tight, when the washing solution in the neutralization vessel bubbles when the instrument is switched on.
7.11
Customer service
Only authorised service personnel are allowed to perform repair work on the instrument. These
persons have a comprehensive technical training and knowledge of possible dangers which might
arise from the instrument.
Addresses of official Buchi customer service offices are given on the Buchi website under:
www.buchi.com. If malfunctions occur on your instrument or you have technical questions or application problems, contact one of these offices.
The customer service offers the following:
• Spare part delivery
• Repairs
• Technical advice
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B-414 Operation Manual, Version D
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8
Troubleshooting
Troubleshooting
This chapter helps to resume operation after a minor problem has occurred with the instrument. It lists
possible occurrences, their probable cause and suggests how to remedy the problem.
The troubleshooting table below lists possible malfunctions and errors of the instrument. The operator
is enabled to correct some of those problems or errors by him/herself. For this, appropriate corrective
measures are listed in the column “Corrective measure”.
The elimination of more complicated malfunctions or errors is usually performed by a Buchi technical
engineer who has access to the official service manuals. In this case, please refer to your local Buchi
customer service agent.
8.1
Malfunctions and their remedy
Table 8-1: General malfunction and their remedy
Malfunction
Possible cause
Corrective measure
B-414 does not work
No mains connection
Fuses defective
Check whether the instrument is
connected to the mains
Replace the defective fuses
Contact the Buchi customer service
Mains switch defective
Pump does not work
Wiring defective
Pump defective
Contact the Buchi customer service
Suction system leaking
Fumes are not exhausted during
extraction (Scrubber suction capacity Hose bent
Adsorption vessel clogged
too weak)
Washing solution dirty
Adsorbents clogged
Pump dirty
Silencer unit clogged
Overpressure valve dirty
Tighten the tube connections
Check the hoses
Check the adsorption vessel
Exchange the washing solution
Renew the adsorbents
Clean the pump
Replace the silencer unit
Contact the Buchi customer service
Fumes are exhausted too fast during Suction system clogged
extraction (Scrubber suction capacity
too strong)
Adsorbents clogged
Silencer unit defective
Overpressure valve defective
Check all stages and the connected
digestion unit as well
Exchange the adsorbents
Replace the silencer unit
Contact the Buchi customer service
Washing solution turns yellow
Exchange the washing solution
33
Washing solution dirty
B-414 Operation Manual, Version D
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9
Shutdown, storage, transport and disposal
Shutdown, storage, transport and disposal
This chapter instructs how to shut down the instrument, how to pack it for storage or transport, and
specifies the storage and shipping conditions.
9.1
Storage and transport
WARNING
Biohazard:
• Remove all dangerous substances from the instrument and clean it thoroughly.
Store and transport the instrument in its original packaging.
9.2
Disposal
To dispose of the instrument in an environmentally friendly manner, a list of materials is given in
chapter 3. This helps to ensure that the components are separated and recycled correctly. Make
especially sure to dispose of the gas springs appropriately.
Please follow valid regional and local laws concerning disposal.
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B-414 Operation Manual, Version D
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10
Spare parts
Spare parts
This chapter lists spare parts, accessories, and options including their ordering information.
Order the spare parts from Buchi. Always state the product designation and the part number when
ordering spare parts.
Use only genuine Buchi consumables and genuine spare parts for maintenance and repair 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.
10.1
Spare parts on the exploded instrument view
21
29
26
28
22
20
18
23
19
24
30
17
27
9
12
35
36
25
37
13
14
15
38
11 10
9
16
6
31
39
7
8
33
5
4
3
34
32
2
1
Fig. 10.1: Spare parts on the exploded instrument view
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B-414 Operation Manual, Version D
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Spare parts
Table 10-1: Spare parts on the exploded instrument view
Position
Product
Order
Position
Product
Order number
number
10.2
1
Protective shield
37820
20
Hose adsorption / pump
37885
2
Neutralization vessel
37786
21
Condenser complete, including:
38022
3
Lip gasket lye-resistant EPDM
37874
22
- Spring ring
37872
4
Lip gasket acid-resistant FPM
38064
23
- Gasket
37873
5
Swirl disc
37821
24
- Holder ring
36709
6
Set of 4 tube connectors with cap
bent FPM
40295
25
Receiving vessel, 1.2 l
7
Adapter for GL-14
37777
26
Hose condenser / washing solution 37888
8
O-ring to adapter (37777)
37928
27
Cold trap
37781
9
Screw cap GL-14 (set of 10)
41956
28
O-ring FPM for cold trap
38067
-
Set of seals EPDM for tube
connectors (set of 10)
40029
29
Trap unit for cold trap
37782
10
Hose seal
38225
30
Connector GL-14 straight
37642
11
Screw cap GL-14
40624
31
Introduction tube assembly
37778
12
Adsorption vessel
37774
32
Reaction vessel, 1.0 l
37797
13
Gasket SVL 42 x 30 PTFE
03575
33
Screw cap SVL 42
03551
14
Adapter complete for adsorption
vessel
37971
34
Gasket ring
37925
15
O-ring 47.2 for adsorption vessel
37857
35
Hose adsorption / reaction
37887
16
O-ring 39.7 for adsorption vessel
38068
36
Hose reaction / pump
37886
17
Gasket SVL 22 x 16 PTFE
03576
37
Condensate drain
37785
18
Adapter SVL 22 / GL14, complete
37972
38
Silencer unit
37871
19
Seal for FEP tube
38225
39
Distribution head, complete
37952
37776
Miscellaneous
Table 10-2: Miscellaneous
Product
Order number
Set of sealings FPM (10 pieces)
40040
Axial flow fan B-414
38026
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B-414 Operation Manual, Version D
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11
Declarations and requirements
11.1
FCC requirements (for USA and Canada)
Declarations and requirements
English:
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to both Part 15 of the FCC Rules and the radio interference regulations of the Canadian
Department of Communications. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case
the user will be required to correct the interference at his own expense.
Français:
Cet appareil a été testé et s'est avéré conforme aux limites prévues pour les appareils numériques
de classe A et à la partie 15 des réglementations FCC ainsi qu’à la réglementation des interférences
radio du Canadian Department of Communications. Ces limites sont destinées à fournir une protection adéquate contre les interférences néfastes lorsque l’appareil est utilisé dans un environnement
commercial.
Cet appareil génère, utilise et peut irradier une énergie à fréquence radioélectrique, il est en outre
susceptible d’engendrer des interférences avec les communications radio, s’il n’est pas installé et
utilisé conformément aux instructions du mode d’emploi. L’utilisation de cet appareil dans les zones
résidentielles peut causer des interférences néfastes, auquel cas l’exploitant sera amené à prendre les
dispositions utiles pour palier aux interférences à ses propres frais.
37
B-414 Operation Manual, Version D
11
11.2
Declarations and requirements
Declaration of conformity
We BÜCHI Labortechnik AG
do hereby declare on our responsibility that the product:
Scrubber B-414
which is the object of this certification, is in accordance with the following norms:
EN 61010-1:2001 (~ IEC 61010-1) Safety requirements for electrical equipment for measurement,
control, and laboratory use
Part 1: General requirements
EN 55011:1998 + A1:1999 (IEC/CISPR 11:1997, modified + A1:1999) Industrial, scientific and
medical (ISM) radio-frequency equipment - Radio disturbance characteristics - Limits and methods of
measurement
EN 60335-1:2002: Household and similar electrical appliances - Safety Part 1: General requirements
EN 61000-3-2:2000 Limits for harmonic current emissions
EN 61000-3-3:2000 Limitations of voltage fluctuations and flicker
In accordance with the regulations of the EU guidelines
73/23/EEC (electrical operating equipment/low-voltage guidelines)
89/336/EEC (electromagnetic compatibility)
Flawil, 12.01.06
BÜCHI Labortechnik AG
Meierseggstrasse 40
Postfach
CH-9230 Flawil 1
Switzerland
Tel.: +41 (0)71 394 63 63
Fax: +41 (0)71 394 65 65
[email protected]
www.buchi.com
38
Guido Worch
Quality Manager
B-414 Operation Manual, Version D
BÜCHI Labortechnik AG
CH-9230 Flawil 1 / Switzerland
T +41 71 394 63 63
F +41 71 394 65 65
www.buchi.com
096701
Quality in your hands
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