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Chapter 6: Maintaining Your Filtered Enclosure

Routine Maintenance Schedule

Weekly

•

Wipe down the interior surfaces of the enclosure with a
disinfectant or cleaner, depending upon the usage of the
unit and allow to dry.

•

Using a damp cloth, clean the exterior surfaces of the
enclosure, particularly the front and top to remove any
accumulated dust.

•

Operate the exhaust system, noting the airflow velocity
through the enclosure using a source of visible smoke.
Airflow monitors are recommended for constant
monitoring.

Monthly (or more often as required)

•

Determine the actual face velocity through the sash opening
of the enclosure where the average reading should be at the
specified velocity. (Use calibrated thermal anemometer or
other approved apparatus). Airflow alarms are
recommended for constant monitoring.

•

The enclosure rear baffle should be checked for any
blockage to ensure that the enclosure is maintaining proper
airflow.

•

All weekly activities.

•

Check face velocity. Increase speed control or change
HEPA filter when face velocity of the enclosure drops
below the recommended speed for your facility or if the
airflow alarm monitor alerts you. Airflow monitors are
recommended.

•

While the enclosure is filled with the contaminant, test
filter condition on Odor Control carbon filters using the
appropriate gas detector tube at intervals of 20% of the total
estimated time. The exception to the 20% recommendation
is formaldehyde or any carcinogen or suspected carcinogen.
These hazardous chemicals must be checked at least every
10% of the total estimated time. Gas detector tubes for the
specific chemicals that are being used in the enclosure can
be obtained from your laboratory supply dealer.

•

Replace Odor Control carbon filters when chemical
breakthrough is indicated by odor, time, detector tube, or
for some chemicals, analytical instrumentation. See
“Replacing Odor Control Carbon Filters” section of this
manual in Chapter 6.

HEPA

CARBON

CARBON

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Содержание 3940200

Страница 1: ...LABster Models 3940200 3940201 3940202 3940220 3940221 3940222 3940300 3940301 3940302 3940320 3940321 3940322 3940400 3940401 3940402 3940420 3940421 3940422 3950200 3950201 3950202 3950220 3950221...

Страница 2: ......

Страница 3: ...tion or the dealer who sold you the product If the cause is determined to be a manufacturing fault the dealer or Labconco Corporation will repair or replace all defective parts to restore the unit to...

Страница 4: ...face 12 Connecting to the Exhaust System Optional 15 Installation of HEPA Filters and Accessory Odor Control Carbon Filters 18 Connect the Electrical Supply Source to Filtered Enclosure 19 Set the Fac...

Страница 5: ...Airflow Monitor 52 Determination of When to Replace Odor Control Carbon Filters and How to Replace 56 Calculating Odor Control Carbon Filter Life 58 Initial Certification 59 Re Certification 59 Fluor...

Страница 6: ...Additionally an accessory Odor Control carbon filter may be added to adsorb nuisance odors from organic vapors formaldehyde or ammonia and amines The XPert filtered enclosures offer many unique featu...

Страница 7: ...t 1 Weighing Hazardous Nuisance Powders Particulates XPert Filtered Balance System XPert Filtered Balance Station HEPA Required included with XPert No 2 Weighing Hazardous and Nuisance Powders Particu...

Страница 8: ...tures and Safety Precautions explains how the XPert filtered enclosure operates and the appropriate precautions you should take when using it Chapter 5 Using Your Filtered Enclosure discusses the basi...

Страница 9: ...type in paragraphs that are preceded by the exclamation icon Failure to comply with the information following an exclamation icon may result in injury to the user or permanent damage to the enclosure...

Страница 10: ...egically placed in the lab to provide efficient workflow Carefully read this chapter to learn the requirements for your installation site The support vibration and movement requirements The temperatur...

Страница 11: ...have less vibration than the center The bench with the balance enclosure should not contain any vibration producing equipment such as shakers or pumps Marble granite or epoxy balance tables are gener...

Страница 12: ...does not contribute high electrostatic forces affecting the precision of the balance 2 The attraction and ultimate accumulation of powders hazardous or nuisance are minimized on the inside of the enc...

Страница 13: ...oam Styrofoam Location and Air Current Requirements The XPert Filtered Enclosures have been designed to contain hazards by negating typical cross drafts and turbulence within the opening Air movement...

Страница 14: ...cities of 60 75 80 90 100 and 105 fpm Enclosure Width Model Description Face Velocity fpm Exhaust Volume CFM XPert Station Initial Static Pressure Loss with HEPA filter in w g XPert System Noise Press...

Страница 15: ...uirements Standard duplex electrical receptacles should be nearby for connecting the filtered enclosure or other equipment such as a balance for weighing operations The enclosures include iris pass th...

Страница 16: ...face velocity with the speed control adjustment Arrange validation for the enclosure Seal the enclosure to the work surface Depending upon which model you are installing you may need common mechanica...

Страница 17: ...recommend that you do not remove the enclosure from its shipping container until it is ready to be placed into its final location Move the unit by placing a flat low dolly under the shipping skid or...

Страница 18: ...closure Installation 1 Level the base cabinets and the work surface Work surface should be placed flush with the front of the base cabinet as shown in Figure 3 1 2 Position the work surface in its int...

Страница 19: ...14 Chapter 3 Getting Started Figure 3 1 Filtered Enclosure Installation...

Страница 20: ...the removal of chemicals or applications where a higher degree of powder and particulate removal is required Review Chapter 2 for exhaust prerequisites and review Chapter 7 for ordering blower exhaust...

Страница 21: ...16 Chapter 3 Getting Started Figure 3 2 XPert Filtered Balance Station only Model Series 3940200 3940300 and 3940400...

Страница 22: ...17 Chapter 3 Getting Started Figure 3 3 Exhaust Duct Connection Kit shown installed on XPert Filtered Balance System Optional Kit 3924400 2 3924401 3 and 3924402 4...

Страница 23: ...ag out flange The XPert enclosures have a true bag in bag out HEPA filter to safely dispose of the filter All seams upstream of the HEPA filter are jacketed by negative pressure This intrinsically saf...

Страница 24: ...the TWA Ammonia and Amines 2 3937202 3 3937302 4 3937402 Treats ammonia low molecular weight amines and other bases designated by NIOSH as acceptable for use with ammonia cartridge type respirators R...

Страница 25: ...to local codes In most cases the XPert Filtered Balance Station will require the use of shielded conduit to protect the wiring See Figure 3 4 The grounding connection shall not be made to the termina...

Страница 26: ...d face velocity See Figures 6 1 and 6 2 in Chapter 6 to locate the speed control The face velocity is increased by turning the speed control counter clockwise and clockwise to decrease face velocity V...

Страница 27: ...ted to Biological Containment testing using a modified Personnel Protection Test as described in NSF ANSI Standard Number 49 An aerosol challenge of approximately 5 x 108 spores of Bacillus subtilus v...

Страница 28: ...enclosures have been tested to effectively contain toxic and noxious materials when properly installed and operated What makes the filtered enclosures so unique is the revolutionary way they direct ai...

Страница 29: ...acketed by negative pressure Should a leak occur in the filter gasket or the plenum the contaminated air is recaptured and refiltered The XPert Filtered Balance System and XPert Filtered Balance Stati...

Страница 30: ...25 Chapter 4 High Performance Features and Safety Not Shown 7 9 10 11 12 13 20 21 22 23 24 25 28 See Figure 4 2 Figure 4 1 17 26 16 10 15 3 8 18 2 1 5 6 4 19...

Страница 31: ...26 Chapter 4 High Performance Features and Safety Figure 4 2 HEPA Filtered Enclosure Airflow Diagram...

Страница 32: ...tly block the airflow entering the air foil air continues to pass under the air foil and through the Clean Sweep openings See Figures 4 1 and 4 3 2 Containment Enhancing Upper Sash Foil includes an op...

Страница 33: ...ry Air Foils allow turbulence free air to enter the enclosure from the sides and allow clean air to sweep the interior walls of the enclosure See Figures 4 1 and 4 2 6 Ergonomic Slope of 10 degrees pr...

Страница 34: ...te and adjust the inflow velocity Located behind the front panel See Figure 4 2 14 Space Saving Design increases effective laboratory workspace because the impeller and HEPA filter are contained withi...

Страница 35: ...de is down and compressed by the weight of the carbon filter Carbon filters are listed in Chapter 7 See Figure 4 2 25 Accessory Exhaust Connection Kits are available to duct integral blower models inc...

Страница 36: ...ffle exhaust slots Ensure blocks are level and secured in place 4 Blocking large portions of the rear baffle will change the airflow pattern in the enclosure causing turbulence Do not store containers...

Страница 37: ...filter s adhesive Gases under high pressure should not be used in the enclosure as they may disrupt the airflow patterns of the cabinet 17 HEPA filters are only effective for entrapment of particulat...

Страница 38: ...Pert enclosures 24 Ensure only trained operators use the enclosure New users should review the User s Manual and become familiar with the operation of the enclosure 25 If the filtered enclosure is to...

Страница 39: ...ffective operation 31 Leave the blower on for at least one minute after work in the enclosure has been completed 32 If a chemical powder or particulates are spilled on the work surface DO NOT switch o...

Страница 40: ...arn about 1 Routine Daily Work Procedures 2 Suitable Applications 3 Appropriate HEPA Filter Applications Suitability and Guidelines 4 Odor Control Carbon Filter Applications 5 Definition of Terms 6 Ap...

Страница 41: ...ld not be placed close together and should be elevated above the work surface to permit airflow to sweep under the equipment After loading wait one minute to purge airborne contaminants from the work...

Страница 42: ...d hazardous solids to protect only the operator and the surrounding environment Weighing of powders Release of particulates using a HEPA filter Powder or particulate procedures traditionally performed...

Страница 43: ...ters Treatment of low level carcinogens or suspected carcinogens See Chemical Carcinogens in Chapter 5 Procedures that may have traditionally been done on the open bench low levels only Odoriferous ch...

Страница 44: ...stream can be estimated from Labconco exclusive computerized filter modeling program Contact Labconco on carbon filter life for specific applications See Chapter 6 Saturation Level or Time There is a...

Страница 45: ...ted by NIOSH guidelines as acceptable for use with chemical cartridge type respirators the exception is formaldehyde and ammonia amines which used impregnated carbon Chemicals not listed by NIOSH in t...

Страница 46: ...is always the preferred method when working with carcinogens The Odor Control carbon filters should only be used as a last resort when venting to the outside is not an option Another option is the us...

Страница 47: ...entilated enclosure or vented fume hood should be used with a remote blower ducted to the outside No exceptions are permitted as the impeller life span will be limited with acid use NOTE Low level aci...

Страница 48: ...tenance 2 Decontamination 3 Determination of when to replace the HEPA filters 4 How to install a new HEPA filter with the bag in bag out procedure on XPert Filtered Balance Systems Stations 5 HEPA fil...

Страница 49: ...ensure that the enclosure is maintaining proper airflow All weekly activities Check face velocity Increase speed control or change HEPA filter when face velocity of the enclosure drops below the recom...

Страница 50: ...epartment of Health Education and Welfare booklet entitled Formaldehyde Decontamination of Laminar Flow Biological Safety Cabinets available from NIH Division of Safety Bethesda MD 20892 call 301 496...

Страница 51: ...er is on 3 Loosen the two filter clamp bolts with a 9 16 socket securing the HEPA filter See Figure 4 1 and 4 2 4 Place both arms in the rear gloves of the bag and carefully draw the HEPA filter out o...

Страница 52: ...t Purpose After installing the new HEPA filter the HEPA filter should be leak checked This test is performed to determine the integrity of the HEPA filter the filter housing and the filter mounting fr...

Страница 53: ...zzle Rectangular 1 2 x 3 1 4 Air Techniques Inc Procedure For the ATI 2G Photometer 1 Turn on the photometer and allow it to operate for a minimum of 5 minutes Leave the valve in the CLEAR setting 2 P...

Страница 54: ...rate of not more than 2 inches per second NOTE For the XPert Filtered Balance Station place the sampling nozzle in the center of the remote blower exhaust Acceptance Aerosol penetration shall not exce...

Страница 55: ...or 10 seconds of bad indications before it sounds both the audio alarm and the red alert LED indicator If the SILENCE ALARM button is pressed the audio alarm will be silenced but the red alert LED wil...

Страница 56: ...l adjustment procedure outlined in Chapter 6 5 Once the alarm condition is set use a small screwdriver to turn the adjustment screw on the airflow switch counterclockwise facing the screw until the lo...

Страница 57: ...Enclosure Figure 6 2 Guardian Airflow Monitor LED with Airflow Switch Guardian Digital 1000 Airflow Monitor Refer to Figure 6 3 for operation and calibration Refer to the separate Labconco 1000 Alarm...

Страница 58: ...enclosure Digital 1000 Calibration The filtered enclosure comes factory calibrated with the monitor alarm at 60 10 fpm with the inflow velocity set at 90 10 fpm To change the calibration review the L...

Страница 59: ...calibrate Typical low air alarms are set 10 30 fpm below operational speeds Typical yellow cautions are set 3 10 fpm above the red low air alarm Be sure to enter Done after completing the calibration...

Страница 60: ...55 Chapter 6 Maintaining Your Filtered Enclosure Figure 6 3 Guardian Digital 1000 Airflow Monitor...

Страница 61: ...ions Odor can be used as a prompt to sample the chemical concentration on the exit side of the carbon filter Organic chemicals approved for use in the filtered enclosure have odors that are detectable...

Страница 62: ...usage Detector tubes or analytical instrumentation should always be used to determine concentrations in the carbon filter It is recommended that the carbon filters be checked with detector tubes or ot...

Страница 63: ...te the concentration in parts per million ppm Steps for Calculating PPM and Filter Life 1 Determine the amount of the proposed chemical lost to evaporation over a given amount of time For example if y...

Страница 64: ...orbed Volume of 50 Ammonia Solution 2 18 x 18 x 1 9 2 0 92 lbs 418g 836 ml 3 30 x 18 x 1 13 5 1 35 lbs 613g 1226 ml 4 42 x 18 x 1 18 9 1 89 lbs 859g 1718 ml Initial Certification The filtered enclosur...

Страница 65: ...torized impeller is replaced the capacitor may also be replaced See Appendix A for Replacement Parts Diagram See Figure 6 5 for an isometric view of the motorized impeller plenum assembly The HEPA fil...

Страница 66: ...61 Chapter 6 Maintaining Your Filtered Enclosure 6 Reassemble the new motorized impeller by reversing the assembly steps Figure 6 4 Motorized Impeller Replacement...

Страница 67: ...wo screws holding the speed control using a Phillips screwdriver Refer to Appendix A for Replacement Parts Diagram 3 Disconnect all wires leading to the speed control Connect wires on new speed contro...

Страница 68: ...exhaust dampers filters storage cabinets and utility shelf kit 1 Work Surfaces An optional dished work surface is available to attach to the filtered enclosure Dished work surfaces are contoured to fi...

Страница 69: ...and 15 VDC power supply 230V 1 ea 3908501 230V Guardian Digital Monitor Airflow Sensor Sensor Cable and 15 VDC power supply Add appropriate Front Panel with cutout to mount Digital 1000 Airflow Monito...

Страница 70: ...or and corrosion resistant epoxy coated steel housing and wheel with blower inlet of 6 00 ID Outlet dimensions are 4 25 x 7 38 OD CFM Static Pressure Inches of H2O S P 0 0 0 125 0 25 0 50 0 75 0 87 CF...

Страница 71: ...ps contain hazardous particulate matter during filter changing operations Width Catalog Size 2 3776003 48 Circum x 54 lg 3 3776004 73 Circum x 96 lg 4 3776005 96 Circum X 96 lg Odor Control Carbon Fil...

Страница 72: ...9901200 24 9902300 9902400 9901300 9901500 18 9901400 9901600 12 48 w Self Closing Doors 9903000 36 w Self Closing Doors 9903100 30 w Self Closing Doors 9903200 24 w Self Closing Doors 9903300 9903400...

Страница 73: ...68 Chapter 7 Accessorizing and Modifying your Filtered Enclosure...

Страница 74: ...ections in the manual Ref Appendix D Restriction of the baffle air slots or blockage of the exhaust outlet Remove obstruction to ensure that all air slots and the exhaust outlet are unobstructed Exter...

Страница 75: ...e carbon filter Blower and lights won t operate Unit not plugged into outlet Plug enclosure into appropriate electrical service Circuit breaker s tripped Reset or replace circuit breaker Lights do not...

Страница 76: ...to increase face velocity The HEPA filter may have become loaded If face velocity is correct calibrate the airflow monitor outlined in this manual in Chapter 6 Monitor alarms air way to airflow monit...

Страница 77: ...72 Chapter 8 Troubleshooting Service Operating Record Log Customer Name Model Number Date Installed Serial Number Unit Location Date Comments...

Страница 78: ...R RE E C CO OM MP PO ON NE EN NT TS S A AN ND D R RE EP PL LA AC CE EM ME EN NT T P PA AR RT TS S The components that are available for your filtered enclosure are listed The parts shown are the most...

Страница 79: ...B 1 3776004 Bag 3 for Bag In Bag Out on XPert 8C 1 3776005 Bag 4 for Bag In Bag Out on XPert 9A 2 1889316 Screw 10 24 x 1 00 PH Phil S S 9B 2 1912108 Washer Plastic 194 ID x 380 OD 9C 2 7868402 Bushin...

Страница 80: ...2 4472400 Screw Thread cut 10 24 x 50 Type F PH Phillips 24A 1 3916500 Impeller Motorized 2 or 3 Enclosure 115V 24B 1 3916501 Impeller Motorized 2 or 3 Enclosure 230V 24C 1 3903300 Impeller Motorized...

Страница 81: ...utlet 115V only 230V connected at laboratory outlet location 35A 1 1333800 IEC Power Inlet 35B 1 1305800 Power Cord 115V Right Angle 35C 1 1334200 Power Cord 230V Right Angle 36A 1 115V 1327200 Circui...

Страница 82: ...77 Appendix A Replacement Parts Use for XPert System and XPert Station 32 35 31 33 Placed on ledge above HEPA filter 7 23 34 24 25 26 28 29 30 36 16 9 11 1 10 6 2 3 4 5 12 20 14 13 40 19 18 22 17 21 8...

Страница 83: ...ment Parts Use for XPert System XPert Station Digital Monitor and Bag 37 38 37 8 37 39 Needs to be sealed on XPert Station 37 19 Ships uninstalled as shown 20 18 23 32 42 Location only Not shown 41 Lo...

Страница 84: ...IX X B B D DI IM ME EN NS SI IO ON NS S A AN ND D E EX XH HA AU US ST T O OP PT TI IO ON NS S See the following dimensions and exhaust options for all the XPert Filtered Balance Systems and XPert Fil...

Страница 85: ...80 Appendix B Dimensions and Exhaust Options Figure B 1 XPert Filtered Balance System...

Страница 86: ...81 Appendix B Dimensions and Exhaust Options Figure B 2 XPert Filtered Balance Station...

Страница 87: ...82 Appendix B Dimensions and Exhaust Options Figure B 3 Exhaust Duct connection Kit Optional Installation on Integral Blower Models such as the XPert Filtered Balance System...

Страница 88: ...t Filtered Balance Station Environmental Conditions Indoor use only Maximum altitude 6562 feet 2000 meters Ambient temperature range 41 to 104 F 5 to 40 C Maximum relative humidity 80 for temperatures...

Страница 89: ...ecifications Used in an environment of Pollution degrees 2 i e where normally only non conductive atmospheres are present Occasionally however a temporary conductivity caused by condensation must be e...

Страница 90: ...85 Appendix C Filtered Enclosure Specifications C 1...

Страница 91: ...86 Appendix C Filtered Enclosure Specifications C 2...

Страница 92: ...87 Appendix C Filtered Enclosure Specifications C 3...

Страница 93: ...88 Appendix C Filtered Enclosure Specifications C 4...

Страница 94: ...rom the upper sash foil and the second row is 3 up from the work surface A total of four readings will be taken for the 2 enclosure six readings taken for the 3 enclosure and eight readings taken for...

Страница 95: ...O ON NT TA AM MI IN NA AT TI IO ON N Many excellent reference texts and booklets are currently available The following is a brief listing Laboratory Ventilation Standards Federal Register 29 CFR Part...

Страница 96: ...s 1330 Kemper Meadow drive Cincinnati OH 45240 1634 513 742 2020 www acgih org ASHRAE 110 1995 Method of Testing Performance of Fume Hoods Evaluates fume hood s containment characteristics Three part...

Страница 97: ...45 2002 Fire Protection for Laboratories Using Chemicals Laboratory hoods should not be relied on for explosion protection Exhaust air from fume hoods should not be recirculated Services should be ex...

Страница 98: ...rmott Henry Handbook of Ventilation for Contaminant Control 2nd Edition Butterworth Publishers 1985 Miller Brinton M et al Laboratory Safety Principles and Practices American Society for Microbiology...

Страница 99: ...ty Springer Verlag New York U S Department of Health Education and Welfare Formaldehyde Decontamination of Laminar Flow Biological Safety Cabinets National Institutes of Health Division of Safety Beth...

Страница 100: ...95...

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