tm060-o&m-001-03 hlfw manual -...

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Caution:Please read this Manual thoroughly.If you do not understand or are unsure of anyinformation contained in this Manual pleasecontact your Agent or BIOQUELL forclarification.

OPERATING MANUAL

LAMINAR FLOW WORKSTATION

MODELSM50545M50546M50547M50548M50549

(TM060-O&M-001 Revision 3)

© BIOQUELL UK LTD52 Royce Close

West Portway, AndoverHampshire, SP10 3TS

United KingdomTel: 01264 835 835Fax: 01264 835 836

Revision 3 http://www.bioquell.com

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FOREWORD

This manual has been specially prepared to give guidance in the use andmaintenance of the:

Horizontal Laminar FlowWorkstation

Model Numbers50545 - 50546 - 50547 - 50548 - 50549

The manual contains all the facts and information to ensure the best and mosttrouble-free operation of the equipment, along with advice on first-line maintenanceso as to keep them in good working order. Service and maintenance operationsother than those covered by this manual should only be undertaken by BIOQUELL'srecommended service agent, BIOQUELL Service or by other approved agents.

Caution:Important Handling InformationDO NOT lift the Horizontal Laminar Flow Workstation by any part of the worksurface, particularly the front edge. The unit should only be lifted by theends and the back. When lifting the unit with a forklift, support such as apallet is required.

If a stand is supplied with the unit, instructions on how to build it is given inAppendix 4

Figure 1 Horizontal Laminar Flow Workstation - Model 50545

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1 INTRODUCTION

The range of BIOQUELL Horizontal Laminar Flow Workstations have beendesigned specifically to be extremely compact, efficient and reliable (modelnumbers are 50545 [Fig. 1], 50546, 50547, 50548 and 50549).

The units provide a clean environment ideal for the Medical, Pharmaceutical,Electrical, Food and Industrial fields for sterile manipulations, miniaturemechanisms assembly and production of optical preparations, in fact anyapplications requiring clean conditions to protect the product from airbornecontaminants.

To achieve these conditions the unit operates by drawing air from the roomvia a pre-filter mounted on top of the unit. This filter takes out the largeparticles to preserve the life of the main HEPA filter. A fan mounted directlybelow the pre-filter draws the air into a plenum at the rear of the cabinet,behind the main filter. The pressure created in the plenum forces the airthrough the main filter to give horizontal laminar air flow over the workingarea to conform to DIN24184 Class ‘S’, American Federal Standards 209DClass 100, British Standard BS 5295 Class ’F’ and BS EN ISO 14644-1Class 5. A schematic of the airflow is shown in figure 2.

To assist in the economical maintenance of the unit, the filters are easilyaccessible for servicing, and the maintenance free fan system ensures a lownoise level for operator comfort.

Figure 2 – Airflow Schematic

Main HEPA filter

Pre-Filter filter

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2 SPECIFICATION

2.1 CONSTRUCTION

The outer shell and canopy is fabricated in mild steel finished in whiteenamel. The work surface is manufactured in stainless steel Grade 316.Special attention has been paid in the design and construction to avoidcrevices. The side screens are clear toughened glass.

At the bottom of each side screen is a service panel section which is fittedwith two internal 13 Amp electrical sockets, one either side. Optional extraService Connections, i.e. taps to transfer the supply from outside, to theworking area can be fitted if required.

2.2 ELECTRICAL

230 Volt 50 Hz Single phase supply. Other voltages are available to order.

The power supply to the unit is through a detachable independent electricalconnection (IEC) cord, fitted with a plug and socket at either end. Theconnecting plug on the unit is fused at 10 Amps on both live and neutrallines.

The unit has two (Supplied as standard) internally wired 13 Amp typesockets, one either side. Although the socket rating is labelled “300 Wattsmaximum” on each socket, it is permissible for this to be increased asrequired on one socket, subject to the combined consumption of the twosockets not exceeding 5 Amps.

2.3 POWER CONSUMPTION/ POWER SUPPLY

The power supply to the unit should be protected by a current operatedearth leakage trip.

The power consumption for each model is as follows:

Model No. 50545 - 8 Amps50546 - 8 Amps50547 - 10 Amps50548 - 8 Amps50549 - 10 Amps

2.4 LIGHTING

Fluorescent lighting is mounted behind the opal diffuser in the canopy. Thelighting level is in the region of 1,000 LUX.

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2.5 FILTRATION

Pre-filtering is by means of Disposable Panel Filters having an efficiency of95% (BS2831 Test Dust No 2).

Final filtration is by means of a narrow Pleated HEPA Filter giving anefficiency of at least 99.997%, or a penetration of not more than 0.003% to a0.3 micron particle. The filter is class H14 to EN18822-1.

2.6 PERFORMANCE

The units conform to DIN 24184 Class ‘S’, American Federal Standard 209DClass 100, and BS 5295 Class ‘F’, BS EN ISO 14644-1:1999 Class 5

2.7 WEIGHTS

Weights for each model are as follows:

Model No 50545 – 95 kg50546 – 101 kg50547 – 157 kg50548 – 116 kg50549 – 162 kg

2.8 DIMENSIONS

The dimensions of the cabinet variants are detailed in Table 1 and Figure 3.

Table 1 Workstation Dimensions

MODEL No. DIMENSION A

HEIGHT OFWORKING AREA

(mm)

DIMENSION B

LENGTH OFWORKING AREA

(mm)

DIMENSION C

OVERALL LENGTH(mm)

DIMENSION D

OVERALL HEIGHT(mm)

50545 580 885 955 980

50546 580 1190 1260 980

50547 580 1800 1870 980

50548 730 1190 1260 1132

50549 730 1800 1870 1132

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Figure 3 Workstation Dimensions

2.9 INSTALLATION

WARNING:INSTALLATION SHOULD ONLY BE CARRIED OUT BY TRAINED ANDAPPROVED ENGINEERS OR AGENTS.

BIOQUELL OR ITS AGENTS CANNOT ACCEPT RESPONSIBILITY FORDAMAGE, LOSS OR INJURY CAUSED BY, OR RESULTING FROM,INCORRECTLY INSTALLED EQUIPMENT.

2.9.1 Important

BIOQUELL or their appointed agents and distributors will only considerthemselves responsible for the safety, reliability and performance of theinstallation if:

(a) Extension, modification, relocation or repairs are only carried out byauthorised personnel.

(b) The electrical installations in the room concerned comply with nationalregulations.

(c) The equipment is used in compliance with these operating instructionsand only by trained personnel.

The units are supplied ready assembled and only require connecting toservices if fitted: a mains socket, gas, vacuum, and the assembly of thestand (option). The plug is fitted with a 5 Amp fuse. Stand installationinstructions are in Appendix 4.

WARNING:THIS APPLIANCE MUST BE EARTHED.

680 mm

A

530 mm

740 mm

D

B

C

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2.9.2 Commissioning

Installation is normally carried out by BIOQUELL engineers. If installed byothers, BIOQUELL should be called to check and commission the unitbefore use.

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3 OPTIONAL EXTRAS

3.1 BASE ASSEMBLY

For application where bench space is not available for the workstation, atubular steel base assembly is available to make the workstation freestanding. The base assembly is finished in white enamel and is fitted witheither adjustable feet, or castors.

3.2 SERVICE CONNECTIONS

Services such as gas, compressed air, vacuum etc. can be fitted via theservice panel section. The connections are laboratory taps, having barbedhose connections on each side.

3.3 ULTRA VIOLET LIGHTING

An ultra violet light may be fitted if required for experimental work but thisshould not be used as a sole means of cleansing, or decontaminating theworkstation. When fitted, the bactericidal ultra violet output should be testedfrequently, since after a limited time of operation the germicidal propertiesmay disappear even though the visible rays remain unchanged. If a UV lightis fitted, a front closing panel should be used for safety.

3.4 FRONT CLOSING PANEL

In order to avoid particulate contamination entering the work area whilst theunit is not in use, a front closing panel may be fitted. This is not completelygas-tight and therefore it will not stop every particle, but it reduces thepurging time required for the unit prior to use by about 50 to 75%, (Note:Panel must be removed before switching on the unit).

3.5 FIREBOY GAS BURNER

This burner has been specially designed for use in safety cabinets andlaminar flow units. It can be supplied with a foot-operated switch, if required,which operates a solenoid valve allowing the gas to flow and givesinstantaneous ignition. The burner can either be set for a fixed time ofoperation, or can be extinguished by operation of the foot control a secondtime. The advantage of this type of burner is that the flame is only therewhen actually needed causing minimum disturbance to the airflow patternwithin the unit.

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4 OPERATING INSTRUCTIONS

All BIOQUELL Horizontal Laminar Flow Workstations are fitted with on/offswitches for the fan, fluorescent lighting and where fitted, the ultra violet light(see Figure 4). Where fitted, care should be taken to ensure that theoperators are aware that the ultra violet light is in use and a front closingpanel should be fitted.

Connection to the mains is via an IEC cord, fitted with plug and socket.When a bank of units are installed, they should all preferably be connectedto an individually fused supply.

After connection, switch on the unit and ensure that the fans are runningfreely and that all other functions are operating correctly. The air flowvelocity has been factory set and tested and should not need furtheradjustment, however to ensure that no change has occurred during transit,the airflow should be checked with a rotating vane anemometer. If anyadjustment should be required, the procedure is given in the maintenancesection of this manual.

After wiping down the working area, allow the unit to run for 20-30 minutes topurge the working area before commencing work. Whenever the unit isswitched off it must again be purged. If a front panel has been used duringthis off period, the purging period may be reduced to approximately10 minutes.

Figure 4 Standard Switch Panel Complete with Airflow Diagram

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5 MAINTENANCE

5.1 GENERAL

The range of BIOQUELL Horizontal Laminar Flow Workstations have beendesigned to give many years of trouble-free, efficient service, to keepmaintenance to a minimum and to ensure that the maintenance which isrequired is straightforward.

A full maintenance service is provided within the United Kingdom byBIOQUELL Service. Under this contract both preventative and correctivemaintenance are carried out. Overseas this same service is offered by theBIOQUELL distributors.

In addition to this, operators should carry out procedures to ensure that theunit is kept in first class working order.

1 The unit should be kept clean externally and the work area must beregularly cleaned. Wiping over with a damp swab using a proprietarybactericidal solution should be adequate.

2 Ensure that the air intake and pre-filter are free of any obstruction thatwill hinder airflow.

3 Check that the fan, light and switches are all working efficiently andcorrect any apparent faults.

4 Check the condition of the pre-filter, since the pre-filter directly affectsthe life of the high efficiency filter, it is important that the pre-filter iskept in good condition. It is readily apparent if it will need changing andthe procedure is set out under ‘Pre-filter Servicing.

5 Periodically inspect the mains electric supply cable to the unit fordamage, or wear. In the event of any fault with the cable contact theBIOQUELL Service.

5.2 CARE OF THE STAINLESS STEEL WORK SURFACE

Refer to Appendix 3.

5.3 CHECKING AIRFLOW VELOCITY

To check airflow velocity, the equipment required is a rotating vane typeanemometer with a head diameter of 100 mm.

The fans should be switched on for at least 10 minutes prior to carrying outthe tests.

The anemometer should be placed 150 mm from the filter face, making airvelocity measurements over a period of at least 5 minutes for eachmeasurement. Refer to Table 2 for position of each reading.

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The mean of measured airflow velocities shall be between 0.45 0.1 m/s(88 19 ft/min).

Should the airflow have fallen below the required level then the speedcontroller must be adjusted. This is located on the internal right hand sidepanel below the pre-filter and screen (for removal of pre-filter and screensee ‘Pre-filter Servicing’). The adjustment is carried out by rotating thepotentiometer on the control PCB, clockwise to increase airflow velocity,anti-clockwise to decrease airflow velocity. The adjustment is carried outwhilst using the anemometer as previously.

Table 2 Airflow Velocity Readings

MODELNo.

No. OFPOSITIONS

LOCATION

50545 6 3 Equally spaced 150 mm from the top of the filter, and 3150 mm from the bottom.

50546 8 4 Equally spaced 150 mm from the top of the filter and 4150 mm from the bottom.

50547 10 5 Equally spaced 150 mm from the top of the filter and 5150 mm from the bottom.

50548 11 4 Equally spaced 180 mm from the top of the filter. 4 Equallyspaced 180 mm from the bottom, and 3 on the horizontal centreline, at 1/4 intervals of the filter width.

50549 14 5 Equally spaced 180 mm from the top of the filter. 5 Equallyspaced 180 mm from the bottom, and 4 on the horizontal centreline, at 1/5 intervals of the filter width.

5.4 PRE-FILTER SERVICING

Pre-filters would normally be replaced during the scheduled servicing visits,however, should it be necessary to replace between service visits this canbe carried out as follows:

1 Switch off and isolate the unit from the electrical supply.

2 Slacken and swivel retaining plates clear of the pre-filters.

3 Lift out old filters, and replace with new, ensuring that the flow arrow onthe new filter frame is pointing in the direction of flow.

4 Replace securing plates and tighten.

5 It is recommended that after fitment of new pre-filters, airflow velocitybe checked.

6 In the event that access is required to either the control system, orfluorescent tubes, the pre-filter and the detachable screen below thepre-filter will be required to be lifted out. Refitting is reversal of above.

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5.5 MAIN FILTER SERVICING

The main filter should normally be changed by the BIOQUELL ServiceEngineer because of the retesting requirements, and rechecking of airflowvelocity. Should it for any reason be necessary for this to be carried out byother than a BIOQUELL Service Engineer, the procedure is as follows:

1 Switch off the unit and isolate from the electrical supply.

2 Position the unit so that the rear of the unit is readily accessible

3 Undo the screws holding the rear panel in place and lift away the panel(see Figure 5).

4 Remove the two main clamping angle bars, top and bottom of the filter(see Figure 6) by removing four hexagon (eight on Models 50547 and50549) nuts. Note the position the angle bars are fitted along the filter.

5 The main filter may now be removed from its casing.

6 Before fitting the new filter, examine it carefully for signs of damage tothe face, or to the sealing gaskets.

7 Replacement is the reversal of stages 1 to 4. When tightening theclamping angle bar hexagon nuts ensure they are evenly tighteneddown.

8 Having completed the filter change, the WorkStation must be fullyretested to ensure the integrity of the filter and the sealing joints. Thisis done by using either electronic particle counter, or by using anAerosol Generator and Photometer.

Figure 5 Rear Panel Removal

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Figure 6 Main Filter Clamping System

5.6 FLUORESCENT TUBE REPLACEMENT (see Figure 7)

Should any of the lighting tubes in the unit need replacing, the procedure isas follows:


2 Remove the pre-filter and their screens (See pre-filter servicing).

3 Remove the plugs from each end of the tube to be replaced.

4 Remove both tubes from the supporting clips holding the tubes inposition.

5 Unscrew the nuts securing the lights support brackets and remove thebrackets from the unit. Rotate the tube around the fan and lift out ofthe unit at one end.

6 Refitting is a reversal of the above.

Access to ballast’s and starters is achieved by removing the pre-filter andtheir screens. They are located internally on the right-hand panel.

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Figure 7Fluorescent Tubes, Support Brackets and Switch/Warning Light Connections

5.7 SWITCH/WARNING LIGHT REPLACEMENT (see Figure 7)


2 Remove pre-filters and their screens (See pre-filter servicing).

3 Disconnect the spade terminals from the faulty switch, making carefulnote of their correct positions

4 Compress the spring retaining clips each side of the switch and pushthe switch through the front of the units casing, it can now be liftedclear of the unit.

5 Access to the warning lights can be achieved in the same manner,should they need replacement.

6 Replacement is a reversal of the above.

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6 SPARES LIST

ITEMMODEL

NO.QTY. DESCRIPTION PART NO.

Pre-filter 50545 1 Series W1 883 x 406 x 25 mm (34.75 x 17 x 1 in.) PNC05818F

50546 1 Series W1 1187 x 406 x 25 mm (46.75 x 17 x 1 in.) PNC05819F




Main Filter 50545 1 Single seal 915 x 610 x 68 mm (36 x 24 x 2.7 in.) M50069/2A29

50546 1 Single seal 1220 x 610 x 68 mm (48 x 24 x 2.7 in.) M50069/3A29




Electric Fan(s) 50545 1 Double inlet, complete with 16 µF capacitor 450-1002

50546 1 Double inlet, complete with 16 µF capacitor 450-1002




Light Tube(s) 50545 2 Fluorescent 914 mm (3 ft), 30 W 257-0504

50546 2 Fluorescent 1219 mm (4 ft), 36 W 257-0383




All Models 1 UV Lamp 15 W 262-5005

Rocker Switch All Models 2 Rocker Switch RS287-7357 250-6050

Indicator Light All Models 1 Indicator Green RS294-5393 263-0922

Fuse All Models 2 10 Amp, anti-surge 271-4719

Fuse All Models 1 5 Amp, anti-surge 271-4721

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APPENDIX 1 – ELECTRICAL DIAGRAM

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APPENDIX 2 – CE CERTIFICATE

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APPENDIX 3 - CARE AND CLEANING

1 STAINLESS STEEL COMPONENTS

Considerable care has been taken in the selection and processing of thestainless steel components used in the construction of this equipment,however even stainless steel can be damaged by chemical attack.It is therefore important to ensure that any cleaning or disinfectingprocedures used will not cause a chemical attack that may damage thesurface of the stainless steel. Work surfaces should be kept clean and freeof chemical liquids, particularly those containing Chlorine.Liquids or vapours containing Chlorine are known to cause gradual stainingof stainless steel. To avoid this, when chemicals are used containingChlorine all surfaces should be thoroughly dried and all traces of the solutionremoved, the area should then be treated with a neutralising agent. Openvessels left inside the equipment which are likely to cause Chlorine vapoursmay also result in staining of the metal surfaces.Should the surface of the stainless steel become stained, it may be cleanedby mechanical polishing and special treatment of the affected area. Ourservice department can help with this process.

2 PLASTIC COMPONENTS

Cleaning of the plastic items should only be carried out with mild detergentor chlorine based cleaning solutions. Care must be taken not to applychlorine solutions to any stainless steel metalwork, as this will potentiallycause staining.

Do not apply heat, abrasive materials, solvents or solvent wipes to thesurface as this can cause irreparable damage.

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APPENDIX 4 – ASSEMBLY INSTRUCTIONS FOR STAND

The following will arrive in the box

A left and right hand stand4 off Cross members4 off Stand bars (in a packet)4 off stand bases8 off Bolts and washers4 off Nuts

ASSEMBLY PROCEDURE

Fit all four feet by screwing thenuts onto the stand bars, andthen screwing the bar into thebottom of the left hand andright hand stand.

Screw the bar in the sameamount and lock off with thenut. Then push the black baseonto the stand bar.

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Fit two cross members usingthe bolts and washers, thewasher goes under the bolthead.

Ensure the left and rightstand are oriented the same,with the ‘long’ foot at thefront.

Fit the top cross memberswith the remaining bolts andwashers

The stand ought to now lookas shown. The Front isshown in the photograph onthe left hand side, with thelong foot.

Place the stand in therequired position, and adjustthe feet to take-up anyirregularities in the floor, sothe stand is stable

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the top part of the stand can be moved vertically to the required height. Then replacethe bars ensuring the internal holes line up with the external hole. Secure byreplacing the screw on the other side of the bar.

The stand height can beadjusted to that requiredbetween 730 and 980mmfrom the ground.

To adjust the height,remove the screw on oneside of the stand leg andpull the screw out from theother side. This will removea bar which holds the twoparts of legs. Once all fourbars have been removed

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APPENDIX 5 – WARRANTY

BIOQUELL UK Ltd. produces products that are warranted under normal usageagainst defects in workmanship and materials for one-year parts and labourcosts, from the date of manufacture. The Warranty is stated in the StandardTerms and Conditions of sale.

Export and Agent retailed products are warranted directly by the Agent.Please confirm your warranty and liability status with the Agent.

In addition, the Warranty is void unless the following conditions are met:

(a) The product has been installed and used as stated within theInstruction Manual.

(b) TThhee wwaarrrraannttyy ddooeess NNOOTT iinncclluuddee sseerrvviicciinngg oorr mmaaiinntteennaannccee.. Anapproved service company who have attended our training courses foryour product must carry out maintenance of product. Failure tomaintain or service this product will invalidate the warranty.Maintenance must be carried out in accordance with the ServiceManual and include tasks within stated periods. Failure to useapproved service companies or BIOQUELL UK Ltd. trained personnelfor maintenance also affects the CE Marking status of the product,removing BIOQUELL’s Duty of Care and responsibility

(c) Consumables such as: pre-filters, HEPA filters, light bulbs and tubes,not warranted.

(d) This Warranty is void if faults are caused by accidental damage,mishandling, adjustment by unauthorised personnel or failure tofollow the correct maintenance and safety precautions as stated in theInstruction Manual.

(e) The Warranty expressly provided for herein is the sole Warrantyprovided in connection with the product and no other Warranty,expressed or implied, is provided. BIOQUELL UK Ltd. assumes noresponsibility for any other claims, consequential (including lost timeor profit) or other damage, whether based in contract, tort orotherwise, not specifically stated in this Warranty.

(f) Except in respect of death or personal injury caused by Seller’snegligence, or as expressly provided in these Conditions, Seller shallnot be liable to Buyer by reason of any representation (unlessfraudulent), or any implied warranty, condition or other term, or anyduty at common law, or under the express terms of the Contract forany loss of profit or any indirect, special or consequential loss,damage, costs, expenses or other claims (whether caused by thenegligence of Seller, its servants or agents or otherwise) which ariseout of or in connection with the supply of the Goods or their use orresale by Buyer, and the entire liability of Seller under or in connectionwith the Contract shall not exceed the price of the Goods.

Note:

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When requesting a Warranty visit, please have the followinginformation available:

(i) Product model number and name.

(ii) Serial number.

(iii) Date of last service, and Service Company.

(iv) Nature of fault and any other comments likely to indicate cause offault.

(v) A Purchase Order number to cover costs incurred if visit isoutside the scope of the Warranty.

BIOQUELL UK Ltd., or other nominated personnel will carry outwarranty visits.

(g) In the event of any health and safety incidents please advise us inwriting at the earliest opportunity.

(h) This warranty and all other contractual issues shall be governed byEnglish law and the parties agree to submit to the nonexclusivejurisdiction of the courts of England.

tm060-o&m-001-03 hlfw manual -...

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