LaboGene SCANLAF Mars GS Series User manual

Code No. 9.900.900.710
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Mars GS, Mars Pro GS
900, 1200, 1500, 1800
Class 2- Biohazard Safety Cabinet
or Cytotoxic Cabinet with
automatic control system
MICROPROCESSOR BASED
USER MANUAL

Mars-Mars PRO
User Manual
Code No. 9.900.900.710
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Symbols used in this Manual
NOTE
Used to direct attention to a special item.
WARNING
Used in case of danger of a serious accident.
© Copyright 2009 –version August, 2012.
LaboGene ApS
Industrivej 6-8
Vassingerød
DK-3540 Lynge.
Tel: [phone]; Mobil: [phone];
Fax: [phone]
Mail: [e-mail];
Internet: www.labogene.com ,
CVR-No.: DK32259154

Mars-Mars PRO
User Manual
Code No. 9.900.900.710
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Contents.
1. General Notes .......................................................................................... 4
1.1 Safety Instructions for Service Work and Repairs............................. 4
1.2 Standards and Safety Regulations...................................................... 5
1.3 Warranty ............................................................................................ 6
2. Introduction.............................................................................................. 7
3. Safety Precautions.................................................................................... 8
4. Description............................................................................................... 9
5. EN 12469 / DIN 12980 Approvals........................................................... 11
6. Technical Specifications.......................................................................... 11
6.1 .Property of materials......................................................................... 13
7. Installation................................................................................................ 13
7.1 Transport............................................................................................ 14
7.2 Preparation......................................................................................... 14
7.3 Connections........................................................................................ 15
8. Testing...................................................................................................... 16
8.1 Air velocity in laminar flow............................................................... 16
8.2 Air velocity in inlet and exhaust opening.......................................... 17
8.3 Airflow patterns, visualization........................................................... 17
8.4 Test of filters...................................................................................... 18
8.5 Test of the retention at front opening ................................................ 18
9. Work Rules .............................................................................................. 19
9.1 Before start-up ................................................................................... 19
9.2 While working.................................................................................... 20
9.3 After work.......................................................................................... 21
10. Control Panel ........................................................................................... 22
10.1 Programming.................................................................................... 23
10.2 Supervision –Alarm ........................................................................ 23
11. Cleaning and decontamination................................................................. 24
11.1 Weekly............................................................................................. 25
11.2 Regularly.......................................................................................... 25
11.3 Decontamination by use of formaldehyde....................................... 25
12. Maintenance............................................................................................. 27
12.1 Filters ............................................................................................... 27
12.2 Part list for Filter.............................................................................. 29
12.3 Fuses ................................................................................................ 29
12.4 UV GERMICIDAL LAMP –Fluorescent lamp.............................. 30
12.5 Spare parts........................................................................................ 31
13. Log-Book ................................................................................................. 33
14. Statement.................................................................................................. 34
Declaration of Conformity....................................................................... 35

Mars-Mars PRO
User Manual
Code No. 9.900.900.710
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1. General Notes
1.1 Safety Instructions for service work and repairs.
Please note that any servicing or repairs to this product must be carried
out only by personnel with the appropriate qualifications and training.
They must have attended a LaboGene service training course on
ScanLaf Cabinets and have the appropriate certificate. Failure to show
proof of this training will invalidate the product warranty. prior to carrying
out any service on the product or changing any components this service
document must be read carefully and fully understood.
Please also remember:
Any electrical work is to be carried out by trained electricians
Any work on gas lines / supplies is to be carried out by Corgi registered personnel
(UK only) or by appropriately trained engineers.
National and local regulations must be adhered to when any service work is carried out
The contents of this service manual are liable to change or be updated without notice.
For any service issues not covered adequately in this manual, please immediately contact
LaboGene at the Head Office for your own safety.
WARNING !–Potential Contamination hazard!
The Safety Cabinet can be used for manipulations of Biohazardous and toxic materials so
internal components and filters can be contaminated. Service personnel must therefore
observe strict safety precautions when handling potentially contaminated material.
It is required by law that prior to service maintenance on any potentially contaminated zone that the
cabinet is first decontaminated by either formaldehyde vapour or hydrogen peroxide vapour (VHP)
so any hazardous residues are removed completely for the unit.
It is recommended that:
Prior to any maintenance work, the users should be asked about the potential hazards used and
should make sure that the cabinet is cleaned and decontaminated.
A certificate of decontamination from the operator is given to the service engineer.
WARNING ! –Electric shock hazard!
Contact with current carrying components and wiring may cause lethal electric shock. Motor driven
components (e.g. Fans / window motors) may cause injury if switched on accidentally. Prior to any
repair work it is therefore recommended to disconnect the cabinet from the mains supply source.
Isolate the cabinet from the electrical supply
Ensure the cabinet cannot be reconnected accidentally
Ensure any components such as capacitors etc are fully de-energized.
Ensure the cabinet is fully grounded.
Cover or isolate any nearby components that are still powered and under voltage.

Mars-Mars PRO
User Manual
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CAUTION! –Hazardous Gases!
If the cabinet is connected to any external gas supply then this must be shut off prior to
any service or repairs.
Ensure the work area is adequately ventilated
Read any data sheets for gas supply / fittings
Report any faulty or suspect supply pipes to cabinet user / facility manager.
NOTE Recycling
All cabinet components except the HEPA filters can be recycled.
If the cabinet has been used to process hazardous biological or chemical material (powders
etc) then it must be fully decontaminated prior to disposal and a Certificate of
Decontamination must be produced by the operator before removal from the laboratory.
NOTE –Start up after service / repair
If any safety devices (shielding / earthing etc) were removed or disabled prior to or during repairs then
the cabinet must not be started up until these devices are re-installed and checked for correct
operation. Before the cabinet is operated fully, it is recommended that a test run be carried out.
1.2 Standards and safety regulations.
The cabinet complies with, and has been tested to, the following standards and directives:
EN 12469:2000,
DIN 12980/2005/6
EN 292-1, EN 292-1,
EN 50081-1, EN 50082-1, EN 50081-2, EN 50082-2, EN 55011
IEC 801-2, IEC 801-4, IEC 1010-1 / EN 6101-1, UL 3101-1
EMC Directive 89/336 EEC-93/68/EEC
Low Voltage Directive 73/23 EEC-93/68/EEC
ENV 50140, ENV 50141
NFX 44-201

Mars-Mars PRO
User Manual
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1.3 Warranty
Labogene guarantee the operational safety and functions of the cabinet provided that:
The cabinet is not modified or changed without authorization.
Only original spare parts or accessories as supplied by LaboGene are used. Use of non
original parts will invalidate the warranty.
Maintenance and service checks are carried out at specified intervals.
A repeat commission test is carried out after any service or repair to components influencing
these tests.
The standard warranty period is 1 year from date of delivery.

Mars-Mars PRO
User Manual
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2. Introduction
You are now in possession of a high quality microprocessor-controlled Class II cabinet, Mars-Mars
Pro, designed to provide protection of the operator, the environment, and the processed product
against particle-/microbiological contamination.
The cabinet complies with the requirements stipulated in EN 12469 and DIN 12980-for Mars Pro,
only.
The ScanLaf Mars/Mars Pro Class II cabinets have:
Microprocessor controller with:
LCD display indicating fan and alarm status.
Air velocity sensors.
Clock (7 days) and hour-counter.
Pre-setting of automatic start-up, timer for delay start and timer for UV-light.
Alarm for any deviation from safety conditions.
Full programming of alarms and fans through pass word protection.
Ergonomically correct sloping front for maximum operator comfort.
Motor-driven front window, with both sliding and hinged modes.
Side windows, for perfect light conditions and view to the surroundings.
Negative pressure plenum for highest operator and product safety.
Opportunity to select FAN off, reduced, or normal air velocity.
Divided table tops for easy cleaning and legs for increased stability.
Digital El direct adjustable Fan speeds.

Mars-Mars PRO
User Manual
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3. Safety Precautions
To avoid unintended or improper operation of the cabinet, please carefully read this manual.
Also, please pay attention to the short form operating instructions on the label stuck on the
cabinet.
If you have questions related to the function or control of the cabinet or wish to order spare parts,
please always indicate the nameplate data.
The proper function and safety of the cabinet are only secured if personnel authorized by
us to do so perform the required tests, maintenance and repair work.
Please also refer to sections “Testing”and “Maintenance”.
The following precautions must be taken for operation of the ScanLaf Mars-Mars Pro-series.
The safety cabinet must not be used for Group 4 pathogens.
Attention is drawn to the risk assessment requirements of the Control of Substances Hazardous to
Health (COSHH) Regulations 1999. (UK)
The cabinet is not suitable for HIGH-RISK biological agents.
HIGH RISK biological agents include all etiologic agents designated Class 4 by CDC, and oncogenic
viruses classed high risk by NCI. (USA)
Never operate the ScanLaf Mars-Mars Pro cabinets if the fan compartment cover is
removed.
If this cover is removed, the cabinet will give no protection of the operator or the environment and the
fan will run with openly rotating blades.
The ScanLaf Mars-MarsPRO Class II cabinets will not provide any protection
for operator or environment against harmful gases or vapours.
Always keep your hands out of the work chamber before activating the sliding window.
The airspeed monitoring system needs approximately 5 minutes to warm up and stabilise after the fan
has been switched on.

Mars-Mars PRO
User Manual
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4 Description
Working principle
The microbiological safety cabinet is a modified exhaust cabinet with a turbulence-free (laminar)
vertical displacement flow of clean air in the work chamber protecting the product against particle
contamination. During operation the front window is partly open and the in-going airflow prevents the
escape of particles from the inside of the work chamber thus protecting the operator and the
environment.
Air filtration
The ScanLaf Mars-Mars Pro main filter and exhaust filter of ScanLaf Mars-Mars Pro and the prefilter
for Mars Pro are all high-efficiency HEPA filters.
Air velocity monitoring
The low turbulence vertical flow and the exhaust flow are monitored by means of air velocity sensors.
Any deviation from safe conditions will be indicated optically and acoustically.
Airflow diagram
Mars Flow diagram Mars Pro Flow diagram

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User Manual
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Design:
The safety cabinet consists of
Fan and filter compartment and return air duct (double back wall) made of polyester-coated
sheet steel.
Support stand made of polyester-coated sheet steel and equipped with levelling feet.
Work chamber with tabletop and trough in stainless steel (AISI 304).
Side windows and sliding front window all in safety glass.
Internal ventilation system with negative pressure plenum.
Microprocessor control and supervision system.
Mars Pro prefilter cabinet is made in polyester-coated sheet steel
Mars Pro prefilter holder are made in stainless steel (AISI 304)
The work chamber is formed by the ceiling (main HEPA filter and air distributor), side windows, side
panels with installation zones, back wall, tabletop and trough; the front is partly closed by the sliding
front window; the work opening is situated below the front window.
The air distributor after the main HEPA filter covers the entire ceiling surface thus giving an
extremely uniform airflow.
The trough will collect and hold any spillage of fluids. A drain valve can be installed.
Mars Pro has installed drain channels between the tabletops to avoid spills into the prefilters.
The installation zones in the back wall can be equipped with electric outlets.
The side windows come with holes for installation of valves.
The stainless steel modular tabletop is easily removed for cleaning.
The internal light is installed between the air distributor and the main filter. This secures that
the light is glare-free and the airflow is turbulence free.
Options:
UV light mounted on the front wall above the front window.
Protective ground sockets 230V~ / 4A installed in the side panels.
Valves for various gasses i.e. gas, nitrogen (N2) vacuum, or Carbon dioxide (CO2), a
maximum of 3 installed in each side window.
Exhaust valve for connection to the exhaust system consult your dealer for detailed
information.
Double HEPA-filter exhaust system as specified by BS 5726-(92).
Carbon filter exhaust system takes organic solvents when doing recirculation
Please contact our sales department for information regarding other available options.

Mars-Mars PRO
User Manual
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5. EN 12469 Approvals
The ScanLaf Mars GS is approved with the following options:
Max. 2 pcs Electrical outlets in each side panel (left and right)
UV-light
Marble stone built-in the table top for supporting a balance.
6. Technical Specifications
Model Mars
Unit
M-900
M-1200
M-1500
M-1800
Catalogue No.
9.001.023.000
9.001.020.000
9.001.022.000
9.001.021.000
External dimension (D×W×H)
mm
798×1003×1248
798×1303×1248
798×1603×1248
798×1903×1248
Working chamber dimensions
(D×W×H)
mm
650×900×720
650×1200×720
650×1500×720
650×1800×720
Front opening, fixed
mm
200
200
200
200
Working, height
mm
750 - 1050
750 1050
750 - 1050
750 –1050
Air velocity, vertical flow
m/s
0,30
0,30
0,30
0,30
Down Flow rate
m3/h
800
1100
1300
1500
Noise level, ISO6081
dB(A)
<54
<54
<54
<54
Light intensity variable
Lux
0-2000
0-2000
0-2000
0-2000
HEPA filters
H-14
H-14
H-14
H-14
Voltage/frequency
V/Hz
220-240/50 or
115/60
220-240/50 or
115/60
220-240/50 or
115/60
220-240/50 or
115/60
Power
W
200
200
300
300
Fuses
A
10
10
10
10
Net weight
Kg
225
250
275
300
Shipping volume
m3
2,2
2,9
3,5
4,1
Window material
hardened/lami
nated glass
hardened/lami
nated glass
hardened/lami
nated glass
hardened/lami
nated glass
Cabinet material
Polyestercoated
/AISI 304
stainless steel
Polyestercoated
/AISI 304
stainless steel
Polyestercoated
/AISI 304
stainless steel
Polyestercoated
/AISI 304
stainless steel
GS approved
GS approved
GS approved

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User Manual
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Model Mars PRO
Unit
Mars PRO-900
Mars PRO-1200
Mars PRO-1500
Mars PRO-1800
Catalogue No.
9.002.023.000
9.002.020.000
9.002.022.000
9.002.021.000
External dimension (D×W×H)
mm
798×1003×1998
798×1303×1998
798×1603×1998
798×1903×1998
Working chamber dimensions
(D×W×H)
mm
650×900×720
650×1200×720
650×1500×720
650×1800×720
Front opening, fixed
mm
200
200
200
200
Working, height
mm
750 –1050
750 –1050
750 –1050
750 –1050
Air velocity, vertical flow
m/s
0,28
0,28
0,28
0,28
Air velocity, deviation
±%
10
10
10
10
Down Flow rate
m3/h
800
1100
1300
1500
Exhaust Flow rate
m3/h
300
400
500
600
Noise level, ISO6081
dB(A)
<55
<55
<56
<5
Light intensity variable
Lux
2000
2000
2000
2000
HEPA filters
H-14
H-14
H-14
H-14
Voltage/frequency
V/Hz
220/50 or
115/60
220/50 or
115/60
220/50 or
115/60
220/50 or
115/60
Power
W
300
300
400
400
Fuses
A
10
10
10
10
Net weight
Kg
250
275
300
325
Shipping volume
m3
2,2
2,9
3,5
4,1
Window material
hardened/lamina
ted glass
hardened/lamina
ted glass
hardened/lamina
ted glass
hardened/lamina
ted glass
Cabinet material
Polyestercoated
/AISI 304
stainless steel
Polyestercoated
/AISI 304
stainless steel
Polyestercoated
/AISI 304
stainless steel
Polyestercoated
/AISI 304
stainless steel
GS approved

Mars-Mars PRO
User Manual
Code No. 9.900.900.710
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6.1 ..Property of materials
Units
Material
Treatment
Support stand
Steel 1203, 2 mm
Polyester-coated RAL 9016MAT
Front shield
Al Mg, 3,2 mm
Polyester-coated RAL 9016MAT
All other painted parts
Steel 1203, 1,5 mm
Polyester-coated RAL 9016MAT
Trough and tabletop
Stainless steel AISI 304
Polished
Internal main and exhaust
plenum
Galvanized steel
Damping plate
MPM
Sandwich: Galvanized -
Viscoelastcal-Galvanized
Front / Side Windows
Laminated / tempered
2×3 mm / 1×5 mm
7. Installation
Transport of the ScanLaf Mars / MarsPRO can be carried out by lifting the cabinet using a forklift
either sideways under the support stand or directly under the trough. Furthermore the cabinet can be
moved manually by using hooks in the dedicated holes in the support stand.
Whenever transportation of the cabinet is needed, precautions should be taken to prevent
it from overturning due to the high-located mass centre.
In order to prevent damage to the cabinet it must be handled as fragile goods.
Storage of the cabinet must be in an environment of maximum 80 % relative humidity and at
temperatures between 5 oC to 50 oC.

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7.1 Transport
The cabinet can be moved through a standard 800 mm wide door.
7 2 Preparation
The installations site for the unit must be draught-free and should be selected so that
frequent passing of people in front of the work opening is avoided.
1. The tabletops of stainless steel are mounted over the trough.
2. Adjust the levelling screws to assure that the tabletop is in horizontal position and levelled.
3. Valves for gases or vacuum are installed in the side windows. A qualified technician must make
the connections for the supply.
4. For connection of the exhaust air to the exhaust air systems, special precautions which must be
discussed with the cabinet supplier, must be taken.
When the cabinet has been installed
1. Check that the front window is in the correct position, i.e. parallel to the front shield.
2. Never lift the front window manually; , this will cause window to mall function.
3. Check that the window slides from top to bottom without any irregular sound.
4. If the window does not move when the UP or DOWN button is pressed, authorized service
personnel must be called to correct the fault.
5. Always keep hands and arms away from the working chamber when activating the front window.

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7.3 Connections
Required fusing: Circuit breaker 10 A or fuse T 10 A.
In addition, the applicable safety requirements of the local power Supply Company shall apply.
If an automatic relay for disconnection of power in case of electric fault is needed,
it must be installed in the supply, as it is not built-in.
Before connecting the power supply it must be checked that the mains specifications
correspond to those stated on the type plate.
The safety cabinet is provided with a flexible power cord. The connection may be
installed hard-wired or by means of a wall outlet with protective ground.
If a hard-wired connection is used, a main switch, which will cut off all poles to the unit, must be
used. This switch must be lockable both in the ON and OFF positions.
If the unit is connected through a protective-ground wall outlet, the connector has the all-pole
insulator function. The wall outlet is to be installed out of reach of operators and may only be
accessible to authorized personnel.

Mars-Mars PRO
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8. Testing
After installation or change of location and before the initial start-up
According to the standard EN 12469 and DIN 12980 (Mars PRO, only),
the following must be tested:
Check that manufacturers specifications are met
Leakage test of the pre-, main and exhaust air filter.
Air inlet speed in the work opening.
Check air flow patterns.
Optionally a KI-Discus test for testing operator protection in situ.
All tests have to be done by authorized test technician approved by ScanLaf.
The test results must be entered in a test book.
8.1 Air velocity in laminar flow
Equipment:
The down flow is measured with a calibrated thermo-anemometer.
Procedure:
Turn on the cabinet and wait until the airflow has been stabilized.
The thermo-anemometer is placed in the measuring spot in a height 75 mm (50-100) over the upper
edge of the front opening.
The measuring spots on the tabletop are for Mars-Mars Pro: Min 4 in a line evenly divided 125 mm
from the back wall and 4 in another line 200 mm from the front window.
Each point is to be measured in at least 1 min and the value is to be recorded.
Calculate the mean value; record it as well as the maximum and minimum airflow.
Acceptance:
Mean downflow. 0.30 m/sec.
Distribution: All velocities between mean ±20 % m/sec.
The fan speed settings are to be recorded.
Alarms:
The alarms for high and low downflow are set to the mean: min. 0.25 m/sec and max. 0.35 m/sec and
the matching alarm level settings are to be recorded.

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8.2 Air velocity in inlet and exhaust opening
Equipment:
The inflow is measured with a suitable volumetric measuring device.
Procedure:
The measuring can take place directly in the opening or directly at the exhaust filter.
Cover the front opening with a plate and seal it so only an opening for the measuring device, i.e.
Balometer, is free.
Measure the volumetric flow and calculate it into velocity in m/s, and record the result.
Formula for the calculation: X m3/h / (3600s/h x aperture in m2) = Y m/s.
Acceptance:
Air velocity in inlet = 0.45 ±10% m/s, = 390 m3/h (Mars 1200/Mars PRO), 590 (Mars 1800).
The fan speed settings are to be recorded.
Alarms:
The alarm for inflow velocity is set to 0.4 m/sec = 345 m3/h (Mars 1200/ Mars PRO), 518 m3/h (Mars
1800), and the matching alarm level setting is recorded.
8.3 Airflow patterns, visualization
The purpose of the test is to verify that no smoke escapes from the working space to the room, and
that smoke will be drawn into the working space from the room.
Equipment:
Smoke stick, i.e. Dräger, Air Current Tube
Procedure:
Move the smoke stick in a steady movement along the front opening outside the cabinet. The smoke
must be drawn into the cabinet without visible turbulence.
Test the laminarity of the downflow and along the side- and back wall. No smoke must come out in
the room and only small turbulence must be observed.

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8.4 Test of filters
Equipment:
Aerosol generator capable of producing test aerosol for HEPA filter leak testing.
Aerosol photometer with an upper measuring threshold of 10 µg/l to 100 µg/l and a range covering
not less than 5 log rates.
Test aerosol: PAO-4 from ATI, or
Emmery 3004 from Henkel Company, or an equivalent material.
Procedure:
Mars:
Main- and exhaust filter:
Turn on the Mars and introduce the aerosol directly under the table top at the centre of the cabinet.
Adjust the Photometer to 100% up-stream concentration
Scan the downstream side of the filter over the entire surface. Scan all filter joints and sealant for
leaks.
Mars PRO:
Main and exhaust filters:
Turn on the Mars PRO and introduce the aerosol directly in the centre of the cabinet backwall.
Adjust the Photometer to 100% up-stream concentration
Scan the downstream side of the filter over the entire surface. Scan all filter joints and sealant for
leaks.
Pre-filter
Turn on the Mars PRO and introduce the aerosol slowly directly in each filter over the whole surface -
one by one.
Adjust the Photometer to 100% up-stream concentration.
Scan the clean side of the filter over the entire surface. Scan all filter joints and sealant for leaks.
Acceptance:
Maximum local penetration: 0.01% of upstream concentration.
8.5 Test of the retention at front opening
General:
This test is optional, but useful for determination of the operator protection after installation where
the cabinet is under influence of the laboratory environment.
Equipment:
KI Discus tester, equipment with an aerosol that challenges the air curtain, established by the down-
and inflow.

Mars-Mars PRO
User Manual
Code No. 9.900.900.710
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Procedure:
With a spinning disc the test aerosol (Potassium iodide 1.5% in Ethanol) is spread inside the Mars-
Mars Pro, in a homogeneous aerosol cloud. The particles leave the disc in a horizontal course, and try
to pass the air curtain.
Four Air Samplers each with a filter membrane, catch particles which escape through the air curtain.
With a developing agent (Palladium chloride 0.1%) particles deposited on the filter membrane will
show up as brown spots. The amount of spots is to be counted.
Acceptance:
Apf =1×105 –Refer to EN 12469 for details.
9. Work Rules
9.1 Before start-up
The cabinets may only be operated at temperatures between 15 0C and 35 0C, at maximum 80%
relative humidity, and at normal air pressure.
All cabinets are developed and produced for use in clean environments.
They must not be operated outdoors or in environments with extreme air pollution. The safety
cabinets are not intended to filter vapours containing acids or organic solvents. The safety
cabinets must not be used as a fume hood.
Approximately 15 minutes before any work in the cabinet, the fan of the unit must be switched on
at normal velocity.
The work chamber and the front- and side windows are to be carefully cleaned and disinfected.
Use an ethanol solution or similar. It is recommended to use special lint-free material. Do not use
explosive disinfectants. See also section 10.
Objects and appliances must be carefully cleaned or disinfected before being introduced into the
work chamber. Do not bring in writing utensils, packing material, etc.
The front window is positioned in working position and kept in that position during the entire
work process.
Necessary appliances for use during work must be placed within easy reach.
Secure the appropriate protection of the operator as well as the product (e.g. clothes, gloves, etc.).

Mars-Mars PRO
User Manual
Code No. 9.900.900.710
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9.2 While working
Important for work with environmentally harmful substances!
Do not perform work while the fan is running at reduced speed.
The front window must be in work position.
Place the product behind the perforated area of the work surface.
Work with calm, smooth movements.
Never overload the work chamber.
Reduce the number of transfers into and out of the work chamber.
Avoid equipment with high heat emission.
Avoid a cabinet location where personnel frequently pass avoid draughts.
The efficiency of the laminar airflow in the work chamber is essential for personnel and
product protection. Negative influences of the flow conditions must therefore be avoided.
They are primarily raised due to:
Rapid movements of the operator s hand, arm, or body both in and in front of the work chamber.
Covered perforations in the tabletop, both at the front and the back of the work chamber.
Large objects and apparatus.
Devices making rapid movements, e.g. agitators, centrifuges.
Do not damage the air distributor, the prefilter (Mars Pro) or the main filter in the ceiling
of the work chamber by mechanical objects or heat sources, otherwise the microbiological safety
is no longer ensured.
The acoustic and optical monitoring devices of the fan and front window must not be deactivated.
Devices developing strong heat, e.g., burners which can disrupt airflows. If burners cannot be
avoided, use safety burners.
Operate heat sources only with the cabinet fan activated.