Animal Change Station
- Mobile Horizontal LAF Cabinet is designed for the manipulation of lab animals in cages.
TOP FLOW 1 Technical Requirements:
The Animal Change Station cabinet is single-motor blower horizontal laminar airflow with partial recirculation of the air. It is designed for the manipulation and passing of mouse in clean cages in a sterile area.
Warranties:
Protection of manipulated product from environmental contamination and cross-contamination furthermore the front air barrier warranties a protection of the operator. The protection of environment is warranted by an absolute filtration of the exhaust air. It is not a biological safety cabinet and therefore it cannot be used with classified pathogens agents.
Norms and Directives:
As far as electrical safety is concerned, the cabinet is manufactured according to EN 61010 norm and in particular: EN 292-1, EN 292-2, EN 61010-1, EN 50081-1, EN 50082-1, EN 50081-2, EN 50082-2, IEC 801-2, IEC 801-4, ENV 50140, ENV 50141
Furthermore it has been designed to fulfill the European Directives like:
- Machinery Directive 89/392/EEC, 91/368/EEC, 93/44/EEC, 93/68 EEC.
- Electromagnetic Compatibility Directive 89/336/EEC, 92/31/EEC, 93/68/EEC.
- The Masini Institute of Milan tested it and copy of the certification is available on request.
- Low voltage Directive 72/23/EEC, 93/68/EEC.
IMPORTANT:
The cabinets we produce, according to the above statements, are manufactured in compliance with the laws on safety into force.
Particularly, they are manufactured in compliance with Art. 6 Dlgs 626/94 and its modification (Italian law in compliance with European Directive EEC/89/391) on the DUTY OF DESIGNERS, OF MANUFACTURERS, OF SUPPLIERS AND INSTALLATORS.
The cabinets are NOT submitted to the directive EEC 93/42 on Medical Devices, as indicated in the definition of "Medical Devices" reported in art. 1-point 2a of the Directive mentioned.
STERIL IS NOT responsible for damages to people and objects due to a non-proper use of the cabinet, and due to a fail to comply with the user instructions and maintenance that are always supplied with the cabinets.
STERIL IS NOT responsible for damages to people and objects due to a non-proper use of the cabinet, and due to a fail to comply with the user instructions and maintenance that are always supplied with the cabinets.
The cabinet is not designed for working in explosion proof laboratory or in tropical thermo-igrometric conditions.
TOP FLOW 1 Mobile Horizontal LAF Cabinet Technical Specifications:
 Double HEPA filters (recirculation and exhaust);- Main and Exhaust HEPA filters: H14, 99.995% efficiency MPPS according to EN 1822 (99,999% DOP test efficiency at 0,3 mm). Main and Exhaust filters HEPA are fitted according to negative seal principle to avoid any escape of contaminated particles and they are testable with DOP for filter integrity).
- Pre-filter (EU3) installed under the working surface, to prevent blockage of motor blower and to save HEPA filters
- Cleanness of air in working area is class ISO 5 @ 0.3 and 0.5 mm particles according to ISO EN 14644-1 (Class M3.5/100 according to FS209E);
- Exterior structure in carbon-steel (12/10) coated with epoxy polyester powder RAL 9010
- Solid work surface in stainless steel AISI 304L scotch brite
- Drain basin under the aspiration part of the work surface, made in stainless steel AISI 304 scotch brite with rounded edge, completely removable for empty out and cleaning
- Side windows in 6 mm Safety Glass.
- Hinged front screen in 4+4 mm Laminated Safety Glass with anodized aluminium frame
- Fluorescent lights installed outside the contamination area (2x30W)
- Easy maintenance of the motor blower and of the HEPA filters from the back of cabinets and for pre-filter from the front of cabinet
- Base supplied with wheels and brakes
- Two lateral handles for moving and positioning
- External dimension: 1350 x 900 x 1850 mm (wxdxh)
- Working chamber dimension: 1220 x 650 (500 mm solid work surface + 150 mm aspiration zone with slots) x 580 (wxdxh)
 Command and Controls:
Air ventilation control by means of automatic regulation of the revolution velocity of the motor blower. Two high-resolution flow rate volumetric devices, directly interfaced to microprocessor, achieve the automatic regulation. The microprocessor guarantees the activity of the motor blowers and controls the optimal function even in presence of effects caused by progressive clogging of the HEPA filters.
Alarm device optical (red signal light visible from working position and display message) and acoustic (buzzer) type, activated, at real time, by the microprocessor, with indication of type of alarm activate showing on a wide alphanumeric display.
Monitoring with alarms of the following parameters:
- Exhaust flow rate out of the pre-set range;
- Laminar air flow velocity out of the pre-set range;
- Front window in wrong position;
Alphanumeric display showing:
- Laminar air flow speed in m/s
- Exhaust flow rate in m3/h
- Date and time
- Hours counters
- UV lamp run hours
- HEPA filter run hours
- Date of last filters change
- Date of last service
- Date of last power failure
- Change language
- Change password
- Setting UV program cycle
- Setting decontamination cycle
Exhaust air:
Without other notice the cabinet discharge in the laboratory about 30% of the air, after absolute filtration by an exhaust HEPA filter. A metallic grid fixed on the filter and a second grid to prevent blockage of filter by materials placed on top of cabinet protects the exhaust HEPA filter.
Warning: If ducted outside the cabinet is required please contact Steril after sales service.
TOP FLOW 1 Animal Change Station Characteristics:
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| Animal Change Station |
TOP FLOW 1 |
| Technical Characteristics: |
|
| Overall dimension (WxDxH) |
1350 x 900 x 1850 mm |
Safe working area dimension (WxDxH)
|
1220 x 650 x 580 mm |
Front opening dimension
|
300 mm |
| Max front opening height |
580 mm |
| Net weight |
200 Kg |
System Ventilation Data:
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| Flow rate |
540 m3/h |
| Heat emission at 25 °C (1) |
645 Kcal/h |
| Noise level |
<58 dB (A) |
Lighting
|
900 Lux |
Electrical Data:
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| Voltage |
230V AC F+N+P.E. V |
| Frequency |
50 Hz |
| Power |
750 W |
| Absorption (2) |
8 A |
| Electrical classification (with feeding cable) |
1 |
| Protection category IP |
20 |
| Power socket (protected by a single fuse 4A) |
2P+t 250V 10/16A IP55 |
Fluorescent lamps
|
2x30 W |
 (1) Only for cabinets that recirculate air in environmental
(2) This value includes max absorption of power socket equal to 4A
(1) Only for cabinets that recirculate air in environmental
(2) This value includes max absorption of power socket equal to 4A
Principle of functioning
(Note: It is not a constructive drawing).
TOP FLOW 1 is a horizontal laminar flow hood.
The total airflow (Q1 + Q2) is in taken through inlet grilles, then pre filtered and pushed by the motor blower in a pressure plenum.
About 70% (Q1) of the total volume is recirculated through an HEPA filter to provide sterile conditions in the work area under laminar flow.
The remaining volume Q2 (about 30%) is exhausted to the outside through an HEPA filter with the aim to ensure the slight air front barrier for personnel and ambient protection.
The standard version of the TOP FLOW 1 hoods features a volumetric sensor whose output is transmitted to the automatic control device and to the digital display.
Detail of soft touch control panel:
- Digital Display
- LED for Power Voltage ON
- Esc / Mute button
- ENTER button
- Cabinet OFF
- Mode I (Ventilation ON)
- Mode II (Service)
- Lighting ON/OFF push-button
- UV lamp ON/OFF push-button (NOT FORESEEN)
- Socket Outlet ON/OFF push-button
- Fuel gas solenoid valve ON/OFF push-button (NOT FORESEEN)
- Scroll LEFT and RIGHT push button
- UP and DOWN push button (in/decrease)
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