DOCUMENT NO: M17 ISSUE NO: 02 ISSUE DATE: 03/10/05

INSTRUCTION MANUAL

AIRONE X RANGE Ducted Fume Cupboard

SAFELAB SYSTEMS LTD Unit 29 Lynx Crescent • Weston Super Mare • BS24 9BP • UK

Telephone: 0870 240 2273 • Fax: 0870 240 2274 • E-mail: safelab@safelab.co.uk WWW.SAFELAB.CO.UK

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FOREWORD This manual has been prepared to give guidance in the use of the following Ducted Fume Cupboards: Code: Description. 1000X AIRONE™ 1000X Ducted Fume Cupboards 1200X AIRONE™ 1200X Ducted Fume Cupboards 1500X AIRONE™ 1500X Ducted Fume Cupboards 1800X AIRONE™ 1800X Ducted Fume Cupboards This manual contains the information required to ensure optimum and free operation of the AIRONE™ X range of Ducted Fume Cupboards. Service and maintenance operations should only be undertaken by SAFELAB Service Engineers or their authorised agents.

Details of Service Contracts, along with information on these and other products is available on request from: SAFELAB SYSTEMS LTD UNIT 29 LYNX CRESCENT

WESTON SUPER MARE BS24 9BP

Telephone - 0870 240 2273 Fax - 0870 240 2274 E-mail - safelab@safelab.co.uk Website: http://www.safelab.co.uk

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INDEX Page Contents 4 Principle of Operation 5 Specifications 6 Materials of Construction 7 Additional Materials Information 8 Operation Instructions 9 General Guidance 10 12 Monthly Service Procedure 11 6 Monthly Service Procedure 12 Calibration Procedure for LAFA 13 X Range Fume Cupboard Wiring Diagram 14 CE Certificate

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PRINCIPLE OF OPERATION Air is drawn into the working area through the sash opening with a flow pattern and velocity designed to ensure containment of any contaminants generated within the working area. The contaminants are entrained in the airstream, directed past the baffles within the fume cupboard and drawn into the extract ductwork. Heavier than air contaminants are effectively scavenged from the worksurface by the low level slot created by the back baffle. Lighter than air contaminants are drawn upwards to the extract plenum created by the high level roof baffle. The extract fan exerts a negative pressure on the entire system preceding it, pulling contaminants through the system and directing them to the exhaust stack. The exhaust stack is under positive pressure and for standard vertical discharge the wasted discharge cowl ensures a high velocity imparted to the exhaust. This velocity forces contaminants to be dispersed clear of the building and surroundings.

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SPECIFICATIONS

Definition

Safelab Systems Airone X Range of Fume Cupboards are high performance chemical workstations providing protection to the operator from gaseous or particulate contaminants generated within the working chamber.

Construction

Structure and frame is in cold rolled steel folded, welded and powder epoxy coated. The transparent fume enclosure is of laminated safety glass.

Sash Construction:

The vertically rising glass sash is supported by an aerodynamic sheet metal sash handle. Both sash cables are clamped to the main balance weight ensuring full sash weight balance in the event of a single cable failure. Sash stops are fitted at 400mm as standard.

Air Bypass

The upper louvered grille provides optimum bypass air entry, decreasing as the sash is raised. The grille operates over the full height of the working opening. The Airone X Range of Fume Cupboards are constant volume fume cupboards when supplied with the louvered bypass grille.

Airflow control baffles

Airflow control baffle plates are fitted at the ceiling and rear of the working chamber. These control airflow at high and low levels to ensure optimum containment performance at all standard height openings up to the sash stop level.

Work Surfaces

Polypropylene Worktop - lipped around for spillage containment is supplied as standard. A variety of worktops are available - to include Stainless Steel and Cast Epoxy Resin.

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MATERIALS OF CONSTRUCTION

Sash

Standard material for the Airone X Range of fume cupboards is toughened glass. Polycarbonate is available on request.

Sash Handle

The Airone X Range of fume cupboard sash handles are manufactured from mild steel and powder coated green.

Ductwork Construction

Construction is from grey uPVC with welded joints or solvent cement joints in socket fittings. Construction and installation of the ductwork in accordance with DW151.

Exhaust Fans

Fans utilise injection moulded impellers within a polypropylene vacuum formed scroll casing. No contact occurs between the ducted contaminant fumes and the motor. The standard polypropylene fan support provides a weatherproof housing for the electrical supply and local isolator.

Exhaust stacks

Standard exhaust stacks are in grey uPVC with High Velocity discharge cowls.

Where required these stacks are stabilised by steel guy ropes fixed to suitable mounting points. Usual flat roof support is to sealed concrete slabs. No penetration of the roof structure normally occurs for fixing.

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ADDITIONAL MATERIALS INFORMATION

Airone X Range

The single-wall laminated glass sides give perfect visibility and are easy to clean and decontaminate - glass is vastly superior and more corrosion resistant than Stainless Steel.

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Airone X Range - Worktops

Polypropylene worksurface

Suitable for most applications except high heat levels. Polypropylene provides excellent resistance to acids, alkalis and solvents. Polypropylene is also recommended where continual use is made of Perchloric, Sulphuric, Hydrochloric and Nitric acids.

Solid Grade Laminates worksurface

Suitable for most applications using general laboratory chemicals and reagents. The exception would be high levels of concentrated acids. Solid grade laminates are available in a wide selection of colours and give a higher degree of mechanical strength than polypropylene or PVC.

Stainless Steel worksurface

Extremely durable surface with the AISI#316 grade giving good resistance to acids and alkalis, excellent solvent resistance, excellent heat resistance. A steel lining may appear ‘darker’ than most other materials. Where visibility and internal fume cupboard brightness are a priority, restriction of its use to the worksurface only may be considered.

Cast Epoxy Worksurface

Good acid and alkali resistance, good solvent resistance. Provides a durable worksurface with better heat and scratch resistant properties than polypropylene or PVC.

Ceramic Stone Worksurface. (Worktops, sinks, dripcups)

An extremely durable surface with long term performance. Resistant to acids and alkalis and solvents. Provides a very stable worksurface for all work, particularly where Bunsen burners and retort stands are used.

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OPERATION INSTRUCTIONS 1. Assess the potential hazard of the intended procedure before commencing work. 2. If the assessment indicates that the fume cupboard is not acceptable than an alternative protective

system should be sought. 3. Hazard level can be reduced by:

• Working with a reduced height of sash opening. • Using reduced quantities of substances involved. • Lowering reaction rates where acceptable. • Reducing the amount of contaminant released by using cold traps, absorption systems, small

scrubbers or similar. 4. Work with someone nearby if hazard assessment indicates such action. Ensure that they are aware

of the hazards likely to be encountered. 5. Make sure that adequate first aid equipment and required antidotes are available. Also ensure that

a suitably competent person is available to administer them. 6. When the fume cupboard is to be used for work with flammable liquids, treat the interior as a zone

to area in accordance with BS:5345 Part 1 for the selection and use of any electrical or other apparatus.

7. Check that the fume cupboard is fit for use, (Control of Substances Hazardous to Health

Regulations 1988 - Statutory Instrument No:1657) 8. Note that open doors and windows can substantially reduce the performance of the fume cupboard

and should be closed. Check also that any air make-up ventilation system is working and that grilles fitted for this purpose are not obstructed.

9. Check that the airflow alarm system indicates normal airflow conditions. 10. Make sure there is enough room to perform your intended operation by removing unwanted

apparatus. Be wary of items left behind by other people. 11. Try to place everything needed for work inside the fume cupboard prior to starting any operation.

This will reduce the amount of arm movements into and out of the fume cupboard and hence reduce possibility of breakout (fume escape).

12. Position apparatus inside the fume cupboard so that disturbance to airflow at the sash opening is

minimised. For bulky items such as ovens or hotplates, models with legs to allow airflow underneath are preferable.

13. After use follow the correct procedure for disposal of any residues and leave the fume cupboard in

a safe state for further use by others.

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GENERAL GUIDANCE

Safelab Airone X Range of Fume Cupboards are designed for general laboratory operations where it is required to protect the operator from the effects of hazardous fumes, vapours or gases.

Although robust and resistant to solvents and chemicals, care should be taken to wash down spills and avoid prolonged contact of any splashed or spilt material with the body of the cabinet.

For general cleaning, water with mild detergent is recommended in all instances. Proprietary glass and stainless cleaners can be used as dictated on other surfaces.

Unless indicated otherwise Safelab Airone X Range fume cupboards are not designed for prolonged and continuous use involving digestions with concentrated Sulphuric, Nitric, Perchloric or Hydrofluoric acids. The standard models are not intended for use with high level radioactive materials.

For Fume Cupboards designed for these and other particular hazards please follow the guidelines of BS:7258: Part 3 or contact Safelab Systems on: 0870 240 2273.

Preparation before use and working practices should conform to all procedures detailed in BS5750: Part3: Section 4.

Maintenance Maintenance procedures should adhere to BS:5750: Part 3: Section 5 - Please see the protocols in this manual. Note :

It is a legal requirement under the COSHH regulations to regularly monitor and maintain all safety equipment. Records of all monitoring and maintenance are required to be kept for the requisite periods.

It is suggested that copies of all monitoring and service details are appended to this operational manual and kept in a safe place.

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12 MONTHLY SERVICE PROCEDURE 1. Examine internal and external surfaces of the cabinet for wear, mechanical damage defects

or cracks.

2. Dismantle the sash mechanism and inspect for damage and corrosion.

3. If fitted examine the spray jet performance in the fume cupboard and duct.

4. If fitted inspect fire dampers and if mechanical, the release mechanism.

5. Check all motors for overheating, worn bearings or excessive noise.

6. Examine the state of flexible couplings and pulley alignments if required.

7. Check that diffusers and louvres are not obstructed.

8. Measure the fan and motor speeds, and current flowing through the motor.

9. Inspect the fan impellers for wear and corrosion.

10. Check the stability of the discharge stack.

11. Inspect the condition of the extract ductwork, particularly the joints, check for any

requirement to clean the interior through the inspection points particularly at bends where

substances can become impacted.

12. Check the laboratory make-up air balance and its temperature.

13. Check the position of the balancing damper.

14. Measure airflow velocities against protocol established at initial commissioning. Record

results on form.

15. Verify with customer representative action on any recommendations or actions to be taken

if there is a deterioration in performance.

16. Check and adjust if required the calibration of airflow indicators, the sash stop mechanisms

and alarms.

17. Check services (if applicable) - record results on form.

18. Record Service Visit in Log Book and Service Record Card.

19. Submit report with recommendations.

20. Commission and issue test report.

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6 MONTHLY SERVICE PROCEDURE 1. Examine internal and external surfaces of the cabinet for wear, mechanical damage defects

or cracks.

2. Remove baffles and clean both the baffles and the rear of the chamber.

3. Wash the entire interior of the chamber with dilute detergent solution and repair defects as

necessary. Linings fabricated from PVC should have a coating of anti static compound

applied.

4. Inspect the sash mechanism for corrosion and damage.

5. Inspect the fans and their motors, drives and bearings for correct running.

6. Check and adjust if required the calibration of airflow indicators, the sash stop mechanisms

and alarms.

7. Check services (if applicable) - record results on form.

8. Record Service Visit in Log Book and Service Record Card.

9. Submit report with recommendation.

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CALIBRATION PROCEDURE FOR LAFA

PRODUCT: Autocal Airflow Alarm ISSUE: 1 PROCEDURE NUMBER CL006

1. Depress and hold the Mute switch. 2. Power up unit. 3. When audio beep is heard from Alarm, release the Mute Switch. 4. The green and red LED’s will alternate off and on, the unit is now in calibration mode. 5. Decrease the face velocity to desired alarm point, by decreasing fan speed or opening

sash (measuring face velocity with a calibrated anemometer). 6. Depress the mute button once and release. 7. The LED’s will stop alternating off and on, the alarm point is now stored. 8. The mute switch will only now operate as an audio mute in alarm state. 9. The alarm point can be changed at any time by following steps 1 to 6.

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AIRONE X RANGE FUME CUPBOARD - WIRING DIAGRAM