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Gentek 3940202 User's Manual

1. Place the palm of your hand over the sampling port of the pistol There should be a strong vacuum at this port If the vacuum 1s weak contact Air Techniques Hamilton Associates Turn the enclosure on and let it operate for a minimum of 5 minutes Chapter 6 Maintaining Your Filtered Enclosure 8 If necessary adjust the speed control of the enclosure to maintain the following airflows at 90 fpm 2 130cfm 3 200 cfm 4 265 cfm 9 Position the aerosol generator discharge in the intake of the baffle inside the enclosure 10 Start the aerosol generator Pressure to be PSIG Ensure that one Laskin nozzle 1s the position 11 Allow the generator to operate for a minimum of 15 seconds For all integral motorized impeller models scan the downstream exhaust side of the HEPA filter by passing the sampling nozzle of the gun in slightly overlapping strokes over the entire surface the filter with the sampling port not more than inch from the surface of the filter media Scan the entire periphery of the filter and the gasket between the filter frame and the enclosure frame Scanning shall be done at a traverse 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 exceed 0 01 percent measured by the photometer Setting the Inflow Face Velocity XPER
2. FacterySetings 00000000020 60 10 fpm 90 10 fpm 60 10fpm 90 10 fpm Chapter 6 Maintaining Your Filtered Enclosure LETESI x 7 FORE CALIBRE PAHEL ROWED TO SET SPD DONTHOL AND THEM REINSTALLED FOA LOS HGH CALIBRATION THE END CONHELTED TD I VS POWER SUPPLY 15 ONLY Soy LAE at Figure 6 3 Guardian Digital 1000 Airflow Monitor 55 Chapter 6 Maintaining Your Filtered Enclosure 56 Determination of When to Replace Odor Control Carbon Filters and How to Replace The carbon filters MUST be replaced when any one of the following two conditions are met 1 The filtered enclosure outlet exhaust concentration approaches the inlet concentration indicating filter saturation 2 The odor in the work area becomes intolerable or the concentration of the chemical in the work area 1s greater than the TWA There are four means of determining when its time to change the carbon filters not shown in the order of preference Odor A person s sensitivity to odor tolerance of odor and their comfort level under odoriferous conditions vary with the individual While odor is an indicator that chemicals are passing through the carbon filter several points need to be understood e Odor within the room is not necessarily an indication of saturation or hazardous exposure concentrations e Odor can be used as a p
3. Installing the Filtered Enclosure on a Supporting Structure and Work Surface Use caution when lifting or moving the enclosure When installing the enclosure onto a chemical resistant work surface or benchtop ensure that the structure can safely support the combined weight of the enclosure and any related equipment The work surface should be at least as wide as the enclosure to properly support it The front of the enclosure should be aligned within Chapter 3 Getting Started 0 36 of the front of the work surface Mounting holes are provided in the Labconco accessory work surfaces to secure the enclosure Work Surface Specifications The work surface should be smooth rigid and durable such as a chemical resistant epoxy resin The surface should be non porous and resistant to the powders solvents and chemicals used in conjunction with the XPert Filtered Enclosure The work surface should also contain a dished recessed area for containing primary spills Work Surface and HEPA Filtered Enclosure 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 intended location and with the front of the work surface towards you Rear mounting holes are located close to the rear edge 3 Secure the work surface to the base cabinet with a structural adhesive or silicone sealant 4 Insert the supplie
4. Upon completion of work the enclosure should be allowed to operate for two to three minutes undisturbed to purge airborne contaminants from the work area before shutting down the blower Unloading Materials and Equipment Objects contact with contaminated material should be surface decontaminated before removal from the enclosure open trays weigh vessels or containers should be covered before being removed from the enclosure Chapter 5 Using Your Filtered Enclosure and Appropriate Application Shutdown e Turn off the exhaust system and light Suitable Applications NIOSH National Institute for Occupational Safety and Health USA has established guidelines for chemical cartridge and HEPA filtered respirators Suitable applications for the filtered enclosures are based on these guidelines As with respirators chemical contaminants are adsorbed or treated by carbon particulates powders and biohazardous materials are filtered by the HEPA filter before air 1s returned to the room Biohazardous materials or other hazardous solids can be used with the HEPA filtered enclosure as long as appropriate decontamination occurs before filter changing operations See Chapter 6 for decontamination procedures Listed below are suitable applications for HEPA filters and accessory Odor Control Carbon Filters HEPA Filter Applications and Guidelines Biohazardous materials and hazardous solids to protect only the operator
5. User s Manual Filtered Balance Systems amp XPert Filtered Balance Stations Models 3940200 3940201 3940202 3940220 3940221 3940222 3940300 3940301 3940302 3940320 3940321 3940322 3940400 3940401 3940402 3940420 3940421 3940422 3950200 3950201 3950202 3950220 3950221 3950222 3950300 3950301 3950302 3950320 3950321 3950322 3950400 3950401 3950402 3950420 3950421 3950422 Protecting your _ laboratory environment 2 LABCONCO Labconcos Mascot Labby the LABster For more information please contact us E mail sales expotechusa com Website www ExpotechUSA com Labconco XPert Filtered Balance System Station Manual Warranty Labconco provides a warranty on all parts and factory workmanship The warranty includes areas of defective material and workmanship provided such defect results from normal and proper use of the equipment The warranty for all Labconco products will expire one year from date of installation or two years from date of shipment from Labconco whichever 15 sooner except the following e Purifier amp Delta Series Biological Safety Cabinets and PuriCare Animal Laboratory Research Enclosures carry a three year warranty from date of installation or four years from date of shipment from Labconco whichever is sooner e Carts carry a lifetime warranty e Glassware is not warranted from breakage when dropped or mishandled This limite
6. airflow LED indicators as well as a SILENCE ALARM button to quiet the audio alarm When first powered up the PCB will light both red and green LED indicators and sound the alarm to indicate it is working After 5 seconds the air monitor will indicate either good or bad airflow based on what the connected airflow switch detects For low airflow the unit will wait for 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 will remain on The alarm is silenced indefinitely unless an airflow change 1s detected If safe airflow 1s later detected for 10 seconds the green safe LED will be lit and the alert red LED will be shut off At any time the airflow 1s safe good one can press the SILENCE ALARM test button and the audio alarm and the red LED will turn on as long as this button 1s held down The PCB has also a two pin connector for use as an external output with 1solated relay contacts that close when the red alert LED 15 lit low airflow These relay contacts are not affected by the SILENCE ALARM button The 16 mounted behind the front panel using standoffs and an appropriate label is used to highlight the SILENCE ALARM button with clear areas for the red and green LED s No holes to allow sound to be broadcast louder are necessary The PCB can be prepared as a fact
7. One aerosol generator of the Laskin nozzle s type An aerosol of mineral oil or suitable liquid shall be created by flowing air through it The compressed air supplied to the generator should be adjusted to a pressure of 10 1 psig during operation Air Techniques Inc Model TDA 4A or equal One nozzle at 10 psig is 67 5 cfm x 100ug l Vol of air For the 2 at 90 fpm or 130 cfm one nozzle 10 psig is 13 500 130 cfm 52 ug l For the 3 at 90 fpm or 200 cfm one nozzle 10 psig 1s 34 ug l For the 4 at 90 fpm or 265 cfm one nozzle at 10 psig is 26 ug l Mineral oil Catalog 1491400 Sampling Nozzle Rectangular 1 2 x 3 1 4 Air Techniques Inc Procedure For the ATI 2G Photometer l 48 Turn on the photometer and allow it to operate for a minimum of 5 minutes Leave the valve in the CLEAR setting Press the ENTER keypad Press the REF keypad The display will display P1 for approximately 1 second and then display a numerical value Using the or keypads respectively increase or decrease the numerical value until it equals 52 27 34 3 26 4 for the enclosure at 90 fpm inflow velocity Press the ENTER Keypad The photometer will scan for 15 seconds and then the 0 keypad will flash Press the Enter keypad The unit will scan for 5 seconds the display will read 0000 and the unit will sound a confirming tone Set the valve to DOWNSTREAM
8. challenge of approximately 5 x 10 spores of Bacillus subtilus var Niger were released in the enclosure and appropriate air sampling equipment established the number of spores that escaped through the sash opening Each size enclosure was tested three times AII three sizes of the enclosure were tested at 75 FPM inflow and typically 1 or less than one spore escaped from the enclosure during each of the tests NOTE Face velocity profiles and smoke testing should be performed frequently per your organization s quality system to ensure safe performance Sealing the Filtered Enclosure to the Work Surface When the filtered enclosure has been set in place ducted if necessary and wired it may be sealed at the work surface to prevent spilled materials from collecting under the walls A bead of silicone sealant is recommended to seal the filtered enclosure to the work surface CHAPTER 4 HIGH PERFORMANCE FEATURES AND SAFETY PRECAUTIONS Performance Features The patented XPert Filtered Balance System and XPert Filtered Balance Station are designed to meet the needs of the laboratory scientist and provide superior containment while conserving energy at OSHA approved low flow velocities as low as 60 feet per minute The filtered 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 d
9. total of four readings will be taken for the 2 enclosure six readings taken for the 3 enclosure and eight readings taken for the 4 enclosure and then averaged Refer to Chapter 2 for proper airflow volumes for your particular model The XPert enclosures have been tested at Labconco s airflow test facility per ASHRAE 110 1995 enclosures achieve an manufactured rating of less than 0 05 part per million ppm at 4 liters per minute Ipm AM 0 05 Consult Labconco for 21 Chapter 3 Getting Started 22 individual ratings For field use ASHRAE testing contact Labconco for a certified on site contractor For particulate powder validation Labconco had containment testing performed to validate the enclosures for sodium naproxen powders The XPert HEPA filtered enclosures demonstrated excellent containment when used by an operator using excellent technique and good containment when used by an operator using marginal technique While no enclosure can compensate for improper technique these tests confirm that the XPert HEPA Filtered Enclosures provide a safe working environment Labconco also performed extensive ASHRAE testing to validate the enclosures for gas containment For copies of these validation reports contact Labconco Customer Service The XPert enclosures were also subjected to Biological Containment testing using a modified Personnel Protection Test as described in NSF ANSI Standard Number 49 An aerosol
10. z58 AS FOX Rap APOL HOT Figure 1 XPert Filtered Balance System 80 Appendix B Dimensions and Exhaust Options SCIT AL ABEL DN OHO MIL AERE UIN XPERT MODELS OH 71 Figure B 2 XPert Filtered Balance Station 81 Appendix Dimensions and Exhaust Options ADL TALE Figure B 3 Exhaust Duct connection Kit Optional Installation on Integral Blower Models such as the XPert Filtered Balance System 82 APPENDIX FILTERED ENCLOSURE SPECIFICATIONS This Appendix contains technical information about all the XPert Filtered Enclosures including electrical specifications environmental operating conditions and wiring diagrams e 3Amps 115 or 2 Amps 230V 50 60 Hz XPert Filtered Balance System and XPert Filtered Balance Station Environmental Conditions e Indoor use only Maximum altitude 6562 feet 2000 meters e Ambient temperature range 41 to 104 F 5 to 40 e Maximum relative humidity 80 for temperatures up to 88 F 31 C decreasing linearly to 50 relative humidity at 104 F 409 e Main supply voltage fluctuations not to exceed 10 of the nominal voltage e Transient over voltages according to Installation Categories II Over voltage Categories per IEC 1010 Temporary voltage spikes on the AC input line that may be as high as 1500V for 1 15V models and 2500V for 230V
11. 230V Fluorescent Lights 15 8 5 35 F17T8 F25T8 excludes XPert Filtered Balance Station since it has no integral blower To determine the actual face velocity at the sash opening airflow velocity readings will need to be taken This should be done across the sash opening of the enclosure in accordance with the ndustrial Ventilation Manual See Appendix E The average face velocity 1s achieved by taking readings in two rows across the enclosure with the readings 6 from the ends and evenly spaced every 12 the first row 1s 3 down from the upper sash foil and the second row 18 3 up from the work surface total of four readings will be taken for the 2 enclosure six readings taken for the 3 enclosure and eight readings taken for the 4 enclosure and then averaged 89 90 APPENDIX E REFERENCES ON VENTILATION SAFETY OCCUPATIONAL HAZARDS BIOSAFETY AND DECONTAMINATION Many excellent reference texts and booklets are currently available The following is a brief listing Laboratory Ventilation Standards Federal Register 29 CFR Part 1910 Non mandatory recommendations from Prudent Practices e Fume hoods should have a continuous monitoring device e Face velocities should be between 60 100 linear feet per minute Ifpm e Average 2 5 linear feet of hood space per person Appendix E References Occupational Health and Safety U S Department of Labor 200 Constitution Avenue N W Washington D
12. 30 w Self Closing Doors 9903200 0 24 w Self Closing Doors 9903300 9903400 24 ADA 9906000 9906100 9905000 9905200 24 w Self Closing 9906200 9906300 Doors 18 ADA ee 9905100 9905300 12 bo dw quom STANDARD BASE VACUUM PUMP STANDARDBASE VACUUMMPUMP Right Hinge 48 2 4 99000 3 99000 2 3 1 99000 2am 990300 990000 ss 1 1 990400 9900700 9907000 48 w Self Closing Doors 36 w Self Closing Doors 30 w Self Closing Doors ENCEINTE 24 w Self Closing Doors Eo E Jd EL 24 w Self Closing Doors 18 ADA 12 ADA 9904100 9904400 9904200 9904500 24 ADA 9904000 9904300 8 Utility Shelf Kit Labconco offers a utility shelf kit part number 3925000 consisting of three shelves to hold items inside the enclosure One shelf may be used for the printer one shelf for spatulas and weigh brushes and one miscellaneous shelf The shelves hang from slots in the rear baffle 67 Chapter 7 Accessorizing and Modifying your Filtered Enclosure PRINTER SHELF 68 CHAPTER 8 TROUBLESHOOTING AND SERVICER OPERATING Loc Refer to the following table if your filtered enclosure fails to operate properly If the suggested corrective actions do not solve your problem contact Labconco for a
13. 3909904 Gray 3 foot wide 36 x 29 x 1 3909905 Gray 4 foot wide 48 x 29 x 1 63 Chapter 7 Accessorizing and Modifying your Filtered Enclosure 2 Guardian 1000 Digital Airflow Monitor or Guardian LED Airflow Monitor The Guardian Digital 1000 Airflow Monitor or Guardian LED Airflow Monitor allows you to continuously monitor airflow through the enclosure Either monitor is usually provided with the XPert enclosures of 115V or 230V 2 ea 1885405 6 32 x 31 Phillips machine screw to mount Airflow Monitor Circuit Board 2 ea 6 32 x 50 Phillips thread cutting screw to 1891808 mount Airflow Sensor _ __ E T Airflow Monitor 115V lea 115V Guardian Digital Monitor Airflow Sensor Sensor Cable and 15 VDC power supply 230V lea 230V Guardian Digital Monitor Airflow 3908501 Sensor Sensor Cable and 15 VDC power supply Add appropriate Front Panel with cutout to mount Digital 1000 Airflow Monitor 3904803 2 Front Panel w cutout or 999 3904809 3 Front Panel w cutout or 3904805 4 Front Panel w cutout NOTE The cutout can also be made with a reciprocating saw and a 1 8 diameter bit The centerline of the cutout 1s located 3 3 from the left side and 4 2 from the bottom The 1 8 mounting holes are spaced 4 38 apart top to bottom and centered over the cutout The cutout dimensions are 2 43 wide by 4 13 tall 3 Exhaust Transition Kits for Ducting to Outside Exh
14. APPLY TO ANY WORK PLACE UNDER THE JURISDICTION OF THE U S DEPARTMENT OF LABOR OTHER COUNTRIES OUTSIDE THE U S HAVE ESTABLISHED STANDARDS WHICH MAY DIFFER SLIGHTLY FROM THOSE USED AS GUIDELINES FOR THIS Chapter 5 Using Your Filtered Enclosure and Appropriate Application PRODUCT IT IS THE USER S RESPONSIBILITY TO BECOME AWARE OF LOCAL REGULATIONS GOVERNING THE SAFE USE AND DISPOSAL OF CHEMICALS CARBON AND HEPA FILTERS KNOWLEDGE OF ESTABLISHED SAFE EXPOSURE LEVELS IS IMPERATIVE TO THE PROPER USE OF FILTERED ENCLOSURES Definition of Terms NIOSH National Institute for Occupational Safety and Health Mine Safety and Health Administration U S A TWA Recommended Exposure Limits expressed as a Time Weighted Average The exposure limit for that chemical for up to a 10 hour workday 40 hours a week Expressed units of parts per million or milligrams per cubic meter Odor Threshold The value in parts per million or milligrams per cubic meter for which one might expect to smell a chemical s presence in the air This value is very subjective and detection will vary with the sensitivity of one s nose The period of time until the odor threshold 15 reached the exhaust 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 15 a limit to the amount of chemical that ca
15. Replace HEPA Filters The filters the filtered enclosures gradually accumulate airborne particulate matter and powders from the enclosure and room The rate of accumulation will depend upon the cleanliness of the room air the amount of time the enclosure 15 operating and the nature of work being done the enclosure In typical installations and usage the HEPA filters will last two to five years before requiring replacement Replace HEPA filters when face velocity drops below the recommended 60 80 fpm velocity and the speed control is adjusted to full speed Replace HEPA filters if it fails the HEPA Filter Leak Test in Chapter 6 45 Chapter 6 Maintaining Your Filtered Enclosure 46 How to Install a New HEPA Filter with the Bag In Bag Out Procedure for XPert Filtered Balance Systems and Stations The XPert enclosures include a true bag in bag out filter disposal system for safely removing the HEPA filter and protect the worker from toxic powders and particulates See Figures 6 1 for the Bag In Bag Out Procedure For your safety wear appropriate personal protective equipment during the change of HEPA filters If working with biohazardous materials use the decontamination procedure outlined in Chapter 6 Consult your Safety Officer before performing filter changes 1 With the enclosure OFF remove the front panel secured by two screws on top of the enclosure 2 Remove the bungee cords and retaining strap on t
16. _ Upper Diffuser Screen 2 0 0 29B 1 3910800 UpperDiff erScren 3 29C 1 3910802 Upper Diffuser Screen 0 0 30A 2 396700 JjClipUpperDiffuer 0 NN NE 2 75 Appendix Replacement Parts 76 Digital Monitor Outlet 115V only 230V connected at laboratory outlet location IEC Power Inlet Digital Airflow Monitor 115V I5VDC Adapter Airflow Sensor Digital Airflow Monitor 230V 15 VDC Adapter Airflow Sensor Tubing 3 16 ID x 5 16 OD PBC 7 00 Lg Filtered Station Filtered Station Filtered Station Appendix Replacement Parts Use for XPert System and XPert Station 77 Appendix A Replacement Parts Use for XPert System XPert Station Digital Monitor and Bag 42 39 Needs to be sealed on Location XPert Station only Not Ships uninstalled as shown APPENDIX B DIMENSIONS AND ExHAusT OPTIONS see the following dimensions and exhaust options for all the XPert Filtered Balance Systems and XPert Filtered Balance Stations 79 Appendix Dimensions and Exhaust Options STANDARD SCHOUM FORE __ 1050 NRELOW IONTOR UL DA MODELS ORE _ OR ENCLOSURE POR Z Dna PENAC
17. an NR UNE THIS 2 V bL i HES i A To 1 x27 I 01343 Cen 1 wi Wor ra T m UC PEU 5EIMGTE m cA a0 EDINA Hj L1Tunc TrHATIH Hi IH dL LL Te 85 Appendix C Filtered Enclosure Specifications caos ABET ag 1 ooh YA COG H u 86 3 Appendix C Filtered Enclosure Specifications YA38 GOAL TH AL FED X3 ONIMIA 4 al unie 328905 123NMUOSIU 222 of MEE amp Bii Hid Awe a Wd Kea 3305 87 Appendix C Filtered Enclosure Specifications YAH GCSE ZH Td PE 34H OO9NOO amp Y TO BOUJA ACC HY 0 aw IHIG IHT HOO 433 Ed WIMDIB TWWEILE 1 P 88 APPENDIX D Quick CharT For THE FILTERED ENCLOSURES Model Size 2 o 39 4 Sash Height from Work Surface inches Total Open Area with Bypass sq ft 85 3 85 Capacitor MFD Volts 1OMFD 115V 1OMFD 115V ISMFD 115V 2 AMFD 230V 2 4MFD 230V 4MFD
18. and Safety 29 Use the smallest possible quantity of chemical s within the enclosure and never exceed the amount which can be effectively adsorbed by the Odor Control carbon filter before breakthrough 30 For weighing procedures adjust face velocity between 60 and 100 FPM for effective 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 off the blower until all traces have been removed 33 Tag enclosures with appropriate warning if filters have been removed for service 34 If the blower fails during use processes should cease and the area should be vacated and ventilated 35 Always refer to the NIOSH Pocket Guide to Chemical Hazards before proceeding 34 CHAPTER 5 APPROPRIATE APPLICATIONS FOR YOUR FiLTERED ENCLOSURE Now that the installation of your filtered enclosure 1s completed you are ready to use your filtered enclosure Read this chapter to learn about l 2 ae eS 9 Routine Daily Work Procedures suitable Applications Appropriate HEPA Filter Applications Suitability and Guidelines Odor Control Carbon Filter Applications Definition of Terms Appropriate Chemicals for Odor Control Carbon Filters Hazardous Misapplications for Odor Control Carbon Filters Chemical Carcinogen use with Odor Control Carbon Filters Prohibi
19. as hazardous waste The user 1s responsible for recording the chemicals adsorbed or treated by the filters and disposing properly HEPA filters should be disposed using the disposal bag on XPert enclosures Ensure only trained operators use the enclosure New users should review the User s Manual and become familiar with the operation of the enclosure If the filtered enclosure 1s to be used a confined space make sure the space 15 well ventilated and the concentration of toxic contaminants cannot accumulate greater than the TWA Proper operation of the enclosure depends largely upon the enclosure location and the operator s work habits The enclosure should be located away from traffic patterns doors fans ventilation registers fume hoods and any other air handling device that could disrupt its airflow patterns Consult Chapter 2 Prerequisites and Chapter 3 Getting Started sections of this manual for further details Only powders and particulates removed by HEPA filters and trace chemicals which can be safely adsorbed and treated with specific carbon based filters are appropriate for use in this enclosure The warning properties 1 e odor taste of the volatile organic compounds or other material being used in the enclosure must be adequate to provide an early indication that the carbon filter may be saturated or inadequate Contact Labconco for help with chemical assessment 33 Chapter 4 High Performance Features
20. is formaldehyde or any carcinogen or suspected carcinogen These hazardous chemicals must be checked at least every 1095 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 Chapter 6 Maintaining Your Filtered Enclosure Annually e Replace the fluorescent lamps e Have the enclosure validated by a qualified certification technician See Certification and Recertification Chapter 6 e All monthly activities Decontamination When used in conjunction with biohazards the XPert Filtered Balance System and XPert Filtered Balance Station should be decontaminated with formaldehyde gas before maintenance work in contaminated areas HEPA filter changes moving the cabinet to a new location changing research programs after a gross spill of biohazardous material The procedures for performing a gaseous decontamination are thoroughly outlined the U S Department 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 2801 Determination of when to
21. load for the electrical relay is 6 amps Only the remote blower wiring is connected inside the electrical junction box The lights and airflow monitor are powered from a standard duplex electrical receptacle located nearby for connecting the power cord wiring for the XPert Filtered Balance Station should be performed by a licensed electrician and conform 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 terminal box cover The building electrical supply system for the remote blower should include overload protection such as a switch or circuit breaker in close proximity and within easy reach of the operator The switch or circuit breaker shall be marked as the disconnecting device Consult NEC 2002 for proper installation XPERT FILTERED BALANCE STATION EXHALIST OUTLET TO REMOTE BLOWER ROUTE CONDUIT THROUGH HOLE y PROVIDED FRONT PANEL Figure 3 4 XPert Filtered Balance Station Conduit Location for Wiring External Remote Blower 20 Chapter 3 Getting Started 230V Models The same procedure applies for the 230V except it 1s shipped without a plug Install the appropriate plug for your electrical specifications per local codes Set the Face Velocity with the Speed Control Adjustment For XPert Filtered Balance Systems adjustment of the speed XPert con
22. the enclosure 15 based upon having proper airflow through the structure Do not place large objects directly on the work surface Instead elevate the object 3 4 on blocks to allow a flow of air under the object and into the rear baffle exhaust slots Ensure blocks are level and secured in place Blocking large portions of the rear baffle will change the airflow pattern in the enclosure causing turbulence Do not store containers or supplies against the rear baffle as this will affect airflow Always work with your hands as far back into the enclosure as possible Keep all powders chemicals and apparatus inside the lower air foil of the enclosure Do not work in this enclosure without the exhaust system running Perchloric acid use in this enclosure is prohibited High level radioisotope materials are prohibited in this enclosure Consult your Safety Officer Avoid cross drafts and limit traffic in front of the enclosure Air disturbances created may draw contaminants out of the enclosure A qualified certification technician should test the enclosure before it is initially used The enclosure should be validated whenever it is relocated The use of safety goggles protective clothing gloves and any other personal protective equipment recommended by your safety officer should be used 31 Chapter 4 High Performance Features and Safety 32 12 13 14 15 16 17 18 19 The sash must remain in t
23. 7400 Bracket AirFoll RH 5B 1 390740 Bracket Air Foil LH lt 6A 1 3907500 StopSashRH 000000000 6B 1 3907501 JjStopSahLH Z 4 7A 1 6916500 Latch Sash 7B 1 3906700 Bracket Latch 0000 7C 1 1927405 Spring Compression Latch 0000 7D 2 1893206 Screw 8 32 x 38 Lg Phillips Pan S S Type 8A 1 3776000 2 for Bag In Bag Out on XPert 8B 1 3776000 Bag 3 for Bag In Bag Out on XPert 8C 1 3776005 4 for Bag In Bag Out on XPert 9A 2 188936 10 24 1 00 Phil S S 9B 2 1912108 Washer Plastic 1941D x 3800D 9C 2 7868402 BushingSpace31x 63 lt Wiper Sash Seal lA 2 1936800 Heyco closed 1 50 Dia IB 2 193460 Bushing w Flex Shutter 1 50 Dia 2A 1 2391501 JjSideAirFoll 12B 2 1889912 Screw 6 32 x 75 Oval Hd Type F S S 13A 1 3907700 Reflector Light Z o I3B 1 3907701 JRefletonLigh o I3C 1 3907702 Reflector Light I3D 2 1889308 Screw Mach 10 24 x 50 PH Phillips 14A 1 3708300 Lamp Fluorescent 2 Enclosure F15T8 SP35 I4B 1 9721902 _ Lamp Fluorescent 3 Enclosure F17T8 14C 1 9721900 Lamp Fluorescent 4 Enclosure 25 8 16A 1 3911700
24. 8 www aiha org SEFA 1 2002 e Fume hood face velocities based on toxicity levels of chemicals Class A 125 to 150 fpm Class B 80 0100 Class C 75 to 80 fpm e Test method face velocity profile and smoke generation Scientific Equipment amp Furniture Association 1028 Duchess Drive McLean VA 22102 703 538 6007 www sefalabs com NFPA 45 2002 Fire Protection for Laboratories Using Chemicals e Laboratory hoods should not be relied on for explosion protection Exhaust air from fume hoods should not be recirculated Services should be external to the hood Canopy hoods only for non hazardous applications Materials of construction should have flame spread of 25 or less e 80to 120 fpm to prevent escape NFPA 30 2000 Flammable and Combustible Liquids Code e Approved cabinets may be metal or wood e Vent location on cabinets are required e Venting of cabinets not a requirement National Fire Protection Association 1 Batterymarch Park P O Box 9101 Quincy MA 02269 9101 800 344 3555 www nfpa org Appendix E References General References American Conference of Governmental Industrial Hygienists Industrial Ventilation A Manual of Recommended Practice Cincinnati OH ASHRAE Standard Committee ASHRAE Standard Atlanta ASHRAE Publications Sales Department 1995 British Standards Institution Laboratory Fume Cupboards Parts 1 2 and 3 London 1990 Department of Labor Occupational Safe
25. 86 Laboratory Safety Principles and Practices American Society for Microbiology Washington D D National Research Council U S Committee on Hazardous Biological Substances in the Laboratory 1989 Biosafety in the Laboratory Prudent Practices for Handling and Disposal of Infectious Materials National Academy Press Washington D C Rayburn S R 1990 The Foundations of Laboratory Safety 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 Bethesda MD 20892 U S Department of Health Education and Welfare Effective use of a Laminar Flow Biological Safe Cabinet National Audiovisual Center GSA Sales Branch Catalog No NAC 005133 Washington D C U S Department of Health Education and Welfare 1975 Selecting a Biological Safety Cabinet National Audiovisual Center GSA Sales Branch Catalog No NAC 000709 Washington D C U S Department of Health and Human Services 1999 Biosafety in Microbiological and Biomedical Laboratories 4 ed U S Department of Health and Human Services Publication No CDC 93 8395 U S Government Printing Office Washington D C DECLARATION OF CONFORMITY Application Council Directive s 73 23 89 336 EBC Standard s to which conformity is declared EN61010 55022 ENS50082 Manufacturer s Labconco Corpo
26. Bracket Right Reflector Support 16B 1 3911701 BracketLeftReflectorSuppot 16C 4 1893108 Screw 8 x 1 2 AB Hex Washer Head A RO Rt MO 74 Appendix Replacement Parts 2 2 1 390480 4 00 23D 1 3904803 FrontPancl2 with Digital Monitor Cutout 23E 1 3904804 Front Panel 3 with Digital Monitor Cutout 23F 1 3904805 FrontPancl 4 with Digital Monitor Cutout 238 2 447400 Screw Thread cut 10 24 x 50 Type F PH Phillips _ 24A 1 3916500 Impeller Motorized 2 or 3 Enclosure 15V 24B 1 3916501 Impeller Motorized 2 or 3 Enclosure 230V 24C 1 3903300 Impelle Motorized 4 115V 24D 1 3903300 _ Impeller Motorized 4 230V 24E 4 1601800 _ Vibration Isolator Mount 25A 1 1306900 2 115V _10 MFD 25B 1 150600 3 115V _10 MFD 25C 1 1506600 Capacitr 4 15 ISMFD 0 25D 2 1306800 Capacitor 2 230V 4 MFD effective2MFD 25E 2 1306800 Capacitor 3 230V 4 MFD effective 2MFD 255 1 1306800 Capacitor 4 230V 4MFD 26A 1 1235400 Fluorescent 2 115 26B 1 1235500 Ballast Fluorescent 2 230V 26C 1 1294000 Ballast Fluorescent 3 or 4 115V or 230V 28A 1 1325500 _ Speed Control ll5V 0000000 28B 1 1525501 SpeedContro230V 0 29A 1 3910800
27. C 20210 202 523 1452 www osha gov Industrial Ventilation ACGIH e Fume hood face velocities between 60 100 Ifpm e Maximum of 125 lfpm for radioisotope hoods e Duct velocities of 1000 2000 fpm for vapors gasses and smoke e Stack discharge height 1 3 2 0 x building height Well designed fume hood containment loss 0 10 ppm Industrial Ventilation A Manual of Recommended Practice 24 Edition 2001 American Conference of Governmental Industrial Hygienists 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 e Three test Smoke generation Face velocity profile Tracer gas release 4 liters per minute e Rated As Manufactured AM As Installed AI and As Used AU American Society of Heating Refrigerating and Air Conditioning Engineers 1791 Tullie Circle N E Atlanta GA 30329 404 636 8400 www ashrae org ANSI Z9 5 1993 Laboratory Standard Covers entire laboratory ventilation system e Vertical stack discharge 2000 3000 fpm e New and remodeled hoods shall have a monitoring device e Ductless hoods should only be used with non hazardous materials e Fume hood face velocities between 80 120 fpm 91 Appendix E References 92 American Industrial Hygiene Association 2700 Prosperity Avenue Suite 250 Fairfax VA 22031 703 849 888
28. Determine the amount of the proposed chemical lost to evaporation over a given amount of time For example if you use isopropyl alcohol and lose approximately 100 ml per week during 2 hours of use per day 2 Convert the amount lost into ml min For this example 100ml X 1week X 10hours 100 ml lost week 10 hours use 600 minutes 600 minutes 3 Convert ml min to PPM by multiplying ml min by the conversion factor found in the second to the last column on the right For isopropyl alcohol 17 x 41 7 0 PPM 4 Find the PPM value on the chart that comes closest to the value you just calculated in step 3 In this example round up to 10 PPM which 15 close to the calculated 7 0 We may approximate the filter life to be around 155 hours of actual use but use 50 of this for the Odor Control filters or 78 hours 5 Insert the estimated filter life into the estimated usage to determine how long filters will last 17 ml min 78 hours filter life 10 hours per week use 7 8 weeks before filter saturation Chapter 6 Maintaining Your Filtered Enclosure Formaldehyde only For formaldehyde use 10 of the impregnated carbon weight Formalin is 37 formaldehyde by weight The density of formalin is 1 08 g ml Pounds of Adsorbed weight of Adsorption Model Formasorb Formaldehyde Volume of Size Filter Size Carbon Formalin 18x 18x 1 0 7 Ibs 318g 796 ml 30x 18x 1 1 2 Ibs 545g 1364 ml 42x 18x 1 1 68 Ibs 763g 1910 ml Ammonia
29. Figure 4 4 Radiused Sosh Fail a a E r ie ul as oA Passage zm E Ya 4 m 1 r i Ee im i Hn L mam E e U T sd c d M mm MB o gt 27 MUR I Uu E E I M MMMM Chapter 4 High Performance Features and Safety 28 10 Upper Dilution Air Supply provides bypass air from above the work area This feature constantly bathes the inside of the sash with clean air and reduces powders particulate materials and chemical fumes along the sash plane near the critical breathing zone Five to seven percent of the required air volume 16 introduced through the upper dilution air supply The upper dilution air supply also reduces stagnant pockets of air in the upper interior See Figure 4 2 Zoned Rear Perforated Baffle directs horizontal laminar air streams to the three zoned sections of the perforated baffle The three zoned sections have increasingly more open area at the bottom that help form laminar airflow This minimizes the potential for air to roll forward preventing contaminants from moving toward the sash opening The majority of contaminants are highly diluted captured and removed on the first pass through t
30. T with the Speed Control E Adjustment SYSTEM 1 Remove the front panel by loosening the 2 Phillips screws on top that secure the front panel 2 The speed control 15 located on the electrical subassembly located behind the switched control panel and below the front panel See Figure 6 1 3 Adjust the speed control with a small Phillips screwdriver by turning the screw counterclockwise to increase blower speed or clockwise to decrease the blower speed The speed control is very sensitive so proceed with caution 4 Measure the inflow velocity per the averaging technique outlined in Chapter 3 and adjust the speed control slowly for the desired speed Allow the speed to stabilize and re measure the inflow velocity to confirm 5 Replace the front panel and tighten the screws 49 Chapter 6 Maintaining Your Filtered Enclosure OPTION 50 Calibrate and Operate the Airflow Monitors Guardian Airflow Monitor LED Monitor Refer to Figure 6 2 for operation and calibration Labconco Airflow Monitor Airflow Switch Operation The Guardian Airflow Monitor LED consists of a circuit board and an airflow switch This switch indicates airflow as safe or low It does not provide an actual face velocity but a small setscrew in the back of the sensor can adjust the airflow level that 1t classifies as good safe or low alert The circuit board provides power to the sensor and also contains a safe green and alert red
31. The exhaust connection allows the operator additional protection from hazardous fumes or vapors and should be used if the carbon filter capacity 1s not adequate Each kit includes an epoxy coated steel exhaust transition adapter with manual adjustable damper designed for 6 diameter PVC duct See Figure 3 3 in Chapter 3 Upper Diffuser Screen provides protection for the HEPA Filter and LED airflow sensor See Figure 4 and 4 2 HEPA Filter Access Port to access HEPA filter during filter changing procedures For harmful powders and particulates the true bag in bag out procedure is used to properly dispose of the contaminated HEPA filter See Figure 4 2 Utility Shelves not shown allow the user to hold utensils and printers on shelves inside the enclosure See Chapter 7 Chapter 4 High Performance Features and Safety Safety Precautions l 10 11 Although the enclosure has been engineered to maintain optimum operator safety caution should always be used while working Prior to using the enclosure check to make sure that the exhaust blower 1s operating and that air 1s entering the enclosure at its specified face velocity The use of an airflow monitor is recommended to alert the user to a problem with airflow Use good housekeeping in the enclosure at all times Clean up spills immediately Periodically clean enclosure interior Do not overload the work surface with apparatus or work material The safe operation of
32. VC In line adjustable damper 6 Accessory Filters HEPA Filter HEPA Filter 1s 99 99 efficient on particles 0 3 micron Size 18 x 18 x 3 31 30 x 18 x 331 42 x 18 x 331 HEPA Filter Bag In Bag Out Bag The bag helps contain hazardous particulate matter during filter changing operations 48 Circum x 54 Ig 73 Circum x 96 Ig 96 Circum X 96 lg Odor Control Carbon Filter Provides granular activated carbon or impregnated carbon used for Odor Control applications on integral motorized impeller models exhausted back into the room be 2 Formaldehyde 18 x 18 x 1 3937201 7 0 Ibs impregnated 3 Formaldehyde 30 x 18 x 1 3937301 12 0 16 impregnated 4 Formaldehyde 42 x 18 x 1 3937401 16 8 Ibs impregnated 2 Ammonia amp Amines 18 x 18 x 1 3937202 8 0 Ibs impregnated 3 Ammonia amp Amines 30x 18 x 1 3937302 13 5 16 impregnated 4 Ammonia amp Amines 42 x 18 x 1 3937402 18 9 16 impregnated 66 Chapter 7 Accessorizing and Modifying your Filtered Enclosure 7 Storage Cabinets SOLVENT ACID Size Description Right Hinge Left Hinge Dual Doors Right Hinge Left Hinge 4 2 99200 990000 3 99000 90101 3 1 992200 90020 4 a 1848 990400 9901600 4 4 2 22 2 4 1 4 48 w Self Closing Doors 9903000 2 1 36 w Self Closing Doors 9903100 p
33. aining Your Filtered Enclosure 6 Reassemble the new motorized impeller by reversing the assembly steps Figure 6 4 Motorized Impeller Replacement 61 Chapter 6 Maintaining Your Filtered Enclosure Speed Control Replacement XPERT 1 Remove the bracket that the speed control is attached to See Figures 6 1 6 2 and 6 3 FILTERED 2 Remove the two screws holding the speed control using a Phillips screwdriver Refer to Appendix A for Replacement SYSTEM Parts Diagram 3 Disconnect all wires leading to the speed control Connect wires on new speed control in the same position as the old speed control 4 Reassemble to the system in the same position and with the same screws that were removed earlier BALANCE CHAPTER 7 ACCESSORIZING AND YOUR FILTERED ENCLOSURE There are several ways to accessorize and modify the filtered enclosure for your individual requirements These include the addition of accessory work surfaces airflow monitors exhaust transition kits remote blowers exhaust dampers filters storage cabinets and utility shelf kit 1 Work Surfaces An optional dished work surface 1s available to attach to the filtered enclosure Dished work surfaces are contoured to fit the dimensions of the filtered enclosures to contain spills Epoxy is chemical resistant See Figure 3 1 for installation 24 x 29 x I 36 x 29 x 1 3909903 Gray 2 foot wide 24 x 29 x 1
34. and the nature of work being done With normal usage the HEPA filters will last two to five years before requiring replacement e Each filtered enclosure is provided with a HEPA filter For powders and particulates follow the HEPA Filter Bag In Bag Out procedure in Chapter 6 for disposal instructions For biohazardous materials follow the Decontamination Procedure in Chapter 6 for disposal instructions Odor Control Carbon Filter Applications sold as an accessory e Release of low concentrations of vapors effectively adsorbed or treated carbon based filters e Treatment of low level carcinogens or suspected carcinogens See Chemical Carcinogens in Chapter 5 e Procedures that may have traditionally been done on the open bench low levels only e Odoriferous chemicals that are an unpleasant nuisance Other applications not fitting the above guidelines would be better suited with the exhaust ducted to the outside The exhaust connection kit See Chapter 3 and Chapter 7 can be added to the XPert Filtered Balance System for ducting to the outside Additionally the XPert Filtered Balance Station 1s factory prepared to be connected to a remote blower or house exhaust system for ducting to the outside Labconco also manufactures fume hoods and Class II Biological Safety Cabinets for exhausting to the outside Consult Labconco product specialist for additional information REFERENCES TO NIOSH OR OSHA GUIDELINES AND REGULATIONS
35. and the surrounding environment e Weighing of powders e Release of particulates using a HEPA filter e Powder or particulate procedures traditionally performed on an open bench e The HEPA filtered enclosure provides personal and environmental protection from particulate matter hazardous powders and biohazardous materials Because room air 1s drawn through the enclosure during operation this enclosure should not be used for operations requiring sample protection from environmental contamination e HEPA filters are only effective for entrapment of particulate matter hazardous powders and biohazardous materials Manipulations that generate gases or vapors 1 toxic chemicals or radionuclides require the use of a HEPA and carbon filter in combination Otherwise the enclosure should be ducted to the outside The surface of the HEPA filter 1s fragile and should not be touched Care must be taken to avoid puncturing the HEPA filter during installation If you suspect that a HEPA filter has been damaged DO NOT use the enclosure See Chapter 6 for Replacing the HEPA Filter or using a Bag In Bag Out Disposal Bag 37 Chapter 5 Using Your Filtered Enclosure and Appropriate Application 38 e The HEPA filter will gradually accumulate airborne particulate matter from the room and from work performed in the enclosure The rate of accumulation will depend upon the cleanliness of the room air the amount of time the enclosure 1s operating
36. ash is constructed of 1 4 inch tempered safety glass It pivots up for loading and cleaning See Figure 4 1 Control Panel The control panel which is located above the sash contains the filter system pressure gauge control switches and the electronics See Figure 4 1 29 Chapter 4 High Performance Features and Safety 30 20 21 22 25 24 25 26 27 28 High Efficiency Particulate Air Filter is rated to remove 99 99 of all particles 0 3 micron in size See Figure 4 2 Lamp Ballast Not Shown for the fluorescent lamp 15 located behind the control panel Accessory Work Surface not shown 15 dished and contoured to fit the dimensions of the enclosures to contain spills XPert Filtered Balance Station Exhaust Collar Not shown provides a 6 diameter transition to a remote blower or house exhaust system See figure 3 2 Chapter 3 Accessory Odor Control Carbon Filters are available for nuisance odor control Accessory carbon filters are designed to remove trace amounts of noxious fumes capacity 1s not adequate to remove continuous fume generation The carbon filters are supported above the filter and the gasket side 15 down and compressed by the weight of the carbon filter Carbon filters are listed 1n Chapter 7 See Figure 4 2 Accessory Exhaust Connection Kits are available to duct integral blower models including the XPert Filtered Balance System to the outside
37. aust transition connects to the XPert Filtered Balance System with integral motorized impellers from the top so the duct can be routed up and outside the building The transition 1s available for 6 PVC duct The transition should be sealed to the top of the enclosure with silicone sealant to prevent leaks See Figure 3 3 64 Chapter 7 Accessorizing and Modifying your Filtered Enclosure Order the following 3924400 2 Exhaust Transition Kit 3 3924401 Exhaust Transition Kit 3924402 4 Exhaust Transition Kit 4 Remote Blowers Has a 1 4 hp direct drive motor 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 5 00 0425 025 0 50 0 75 08 Catalog Y Shipping Wt 4863500 Remote Blower 115 V 60 Hz 4 4 amps 35 16 4863501 Remote Blower 115 230 V 50 Hz 5 6 2 8 amps 35 16 7053501 Explosion Proof Remote Blower 115 V 60 Hz 40 18 4 4 amps Figure 7 1 65 Chapter 7 Accessorizing Modifying your Filtered Enclosure 5 Exhaust Dampers Exhaust dampers allow adjustments required to maintain proper airflow for roof mounted blowers or house exhaust systems This would primarily be useful only for the XPert Filtered Balance Station which does not have an integral blower but does have a 6 nominal exhaust outlet Catalog 3924000 6 Epoxy Coated Steel In Line adjustable damper 4724200 6 P
38. ctor located under the control panel shown in Figure 6 2 and Figure 6 3 3 Remove the light reflector support by removing two Phillips screws on the bottom of the light reflector 4 Rotate and remove the old fluorescent lamp 5 Reinstall the new fluorescent lamp and light reflector in reverse order 6 Power the unit up and try the new fluorescent lamp Motorized Impeller Replacement The motorized impeller must be replaced as a complete unit When the motorized 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 filter rests on top of the motorized impeller assembly 1 Wear appropriate personal protective equipment to decontaminate the filtered enclosure and then unplug from the electrical outlet 2 Remove HEPA filter per the HEPA filter removal procedure outlined in this chapter 3 Consult the wiring diagram in Appendix C of the manual and disconnect all the wires of the motorized impeller Be sure to connect wires on the new motor in the same way the old motor was wired 4 Remove four screws the motor bracket that hold motor bracket to the supports with the vibration isolation mounts Remove the motor and bracket WARNING High speed blower Never operate impeller with housing off 5 Replace the capacitor with a new one of equal voltage and capacity Chapter 6 Maint
39. d Balance Station Face Velocity fpm Exhaust Volume CFM XPert Station Initial Static Pressure Loss with HEPA filter in w g 35 41 45 54 A8 57 56 65 002 2 72 65 76 40 46 53 62 ST 66 68 78 76 87 80 91 XPert System Noise Pressure db A Xpert System Max Equivalent Resistance of 6 Duct Ft Xpert System Max External Static Pressure Chapter 2 Prerequisites 10 Proper blower selection be determined from these exhaust requirements and the total system static pressure loss For outside exhaust the enclosure must be connected to either a dedicated blower or a house exhaust system Labconco offers accessory remote blowers listed 1n Chapter 7 Contact Labconco for blower sizing assistance If the enclosure is connected directly to a house exhaust system an adjustable damper or valve must be installed to control the airflow properly This 1s equally important when a house exhaust system 1s controlling multiple filtered enclosures See Chapter 7 for accessory adjustable damper ordering information Electrical Requirements 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 throughs to allow electrical cords through the back of the enclosure without leaving a large
40. d mounting screws in the four holes Allow a minimum of 1 8 clearance under the head of the screw for positioning the enclosure 5 Place the enclosure on the work surface and slide the rear flange and front air foil flanges under the mounting screw heads 6 Tighten the four screws to complete the installation 13 Chapter 3 Getting Started AO 2900 OPTIONAL WORK SURFACE LOO TALL WORK SURFACE _ a x n _ _ Figure 3 1 Filtered Enclosure Installation 14 Station Chapter 3 Getting Started Connecting to the Exhaust System Optional on XPert Filtered Balance System WARNING The weight of the exhaust ductwork system must be supported independently of the enclosure superstructure or damage may occur The exhaust system should be installed by a qualified HVAC contractor The exhaust connection on the XPert Filtered Balance Station has been designed to accept 6 diameter ductwork as shown in Figure 3 2 The exhaust connection ships uninstalled on the top and needs to be fastened with the screws provided See Chapter 7 for ordering exhaust transition kits for the XPert Filtered Balance System Exhaust transition kits aid the removal of chemicals or applications where a higher degree of powder and particulate removal 1s required Review Chapter 2 for exhaust prerequisites and review Chapter 7 for ordering blower exhaust equipment See Figure 3 2 for the XPert Station a
41. d warranty covers parts and labor but not transportation and insurance charges In the event of a warranty claim contact Labconco Corporation 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 operation Under no circumstances shall Labconco Corporation be liable for indirect consequential or special damages of any kind This statement may be altered by a specific published amendment No individual has authorization to alter the provisions of this warranty policy or its amendments Lamps and filters are not covered by this warranty Damage due to corrosion or accidental breakage is also not covered Limitation of Liability The disposal and or emission of substances used in connection with this equipment may be governed by various federal state or local regulations users of this equipment are required to become familiar with any regulations that apply in the user s area concerning the dumping of waste materials in or upon water land or air and to comply with such regulations Labconco Corporation is held harmless with respect to user s compliance with such regulations Part 23905501 Rev B ECO C695 TABLE Or CONTENTS CHAPTER 1 INTRODUCTION About This Manual Typographical Conventions CHAPTER 2 PREREQUISITES support Vibration amp Movement Requirements Temperature Variation Requiremen
42. dditional assistance PROBLEM CAUSE CORRECTIVE ACTION Ee ee Contaminants outside of enclosure Improper user techniques for the enclosure Restriction of the baffle air slots or blockage of the exhaust outlet External factors are disrupting the enclosure airflow patterns or acting as a source of contamination Enclosure has improper face velocity See Certifying the Enclosure Chapter 3 and Safety Precautions Chapter 4 sections in the manual Ref Appendix D Remove obstruction to ensure that all air slots and the exhaust outlet are unobstructed See Location Requirements Chapter 2 Certifying the Enclosure Chapter 3 and Safety Precautions Chapter 4 sections of this manual Ref Appendix D Have enclosure certified and check exhaust system Check HEPA filters for loading Adjust enclosure speed control Enclosure should have an average face velocity of 60 100 fpm for weighing procedures and 75 105 fpm for biohazardous procedures 69 Chapter 8 Troubleshooting PROBLEM CAUSE CORRECTIVE ACTION Blower won t Unit not plugged Plug the enclosure into appropriate operate into outlet electrical service Circuit breaker s Reset circuit breaker or Ground Fault Interrupter disconnected defective Motorized impeller Replace motorized impeller or blower or blower 15 See Chapter 6 defective Low face velocity or poor containment of contaminants Encl
43. dealer Alternate detector pumps can also be purchased from your laboratory supply dealers The vast majority of detector tubes available start measuring at the TWA When a user observes a color change in the tube they should replace the filter immediately If no detector tube for your specific chemical 1s available other means of detection must be used Time For applications that have very consistent inlet concentrations and operating time Time can be used to anticipate saturation or TWA levels based on prior experience However this does not replace the need for sampling Consult Labconco technical specialist for an estimate of carbon filter life based on chemical 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 other means at intervals of 20 of the total estimated filter life The exception to the 20 recommendation is formaldehyde and any carcinogen or suspected carcinogen These more hazardous chemicals must be checked at least every 10 of the total estimated time Analytical Instrumentation This 15 the most accurate means of measuring concentrations of any chemical It is the method of choice when no detector tubes are available or the tubes are not sensitive enough to measure at the TWA concentration for the chemical This method 15 also to be used to determine saturation whe
44. e and several auxiliary relay ports Both airflow monitors are available options on all XPert models See Figure 4 and 4 2 Inherently Safe Impeller has a negative pressure plenum that surrounds the positive pressure impeller so that if a leak should occur the unfiltered air 1s captured and refiltered See Figure 4 2 Vibration Isolated Motorized Impeller has vibration isolation supports which eliminates transfer of vibration to the work surface This 1s extremely useful weighing operations with precision balances The impeller wheel 15 also dynamically balanced See Figure 4 2 Speed Control regulates the speed of the motorized impeller and is used by the certifier to validate and adjust the inflow velocity Located behind the front panel See Figure 4 2 Space Saving Design increases effective laboratory workspace because the impeller and HEPA filter are contained within the enclosure a separate filtered blower module is not required See Figure 4 1 Fluorescent Lamp is located above the work area out of contact with contaminated air safety glass window beneath the lamp distributes the light evenly across the work surface See Figure 4 1 Filter System Pressure Gauge indicates the total system pressure across the HEPA filter and pressurized plenum to help predict HEPA filter loading See Figure 4 1 Filter Clamping Bolt evenly seals the HEPA filter to the frame of the enclosure See Figure 4 1 and 4 2 Sash The s
45. ed impeller cannot be exposed to acids Where applications require the use of acids a 41 Chapter 5 Using Your Filtered Enclosure and Appropriate Application separate ventilated 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 acids can be used with the XPert Filtered Balance Station which uses a remote blower CHAPTER 6 MAINTAINING YOUR FILTERED ENCLOSURE Monitoring airflow and changing the filters is the primary maintenance required Decontamination may be required and 15 reviewed Chapter 6 Certification and recertification 15 reviewed in Chapter 6 Review this chapter on maintenance for the following 1 Routine Maintenance Decontamination Determination of when to replace the HEPA filters How to install a new HEPA filter with the bag in bag out procedure on XPert Filtered Balance Systems amp Stations HEPA filter leak test Speed control adjustment and setting the inflow face velocity Operating and calibrating the airflow monitors Determination of when to replace Odor Control carbon filters and how to replace 9 Calculating Odor Control carbon filter life 10 Initial certification 11 Re certification 12 Fluorescent light replacement 13 Motorized impeller replacement 14 Speed control replacement ad od ix E LE Ed 43 Chapter 6 Mai
46. entually slow the inflow velocity Once the alarm condition is met simply increase the speed control outlined Chapter 6 or replace the HEPA filter 1f the speed control is maximized 8 The table below lists typical alarm conditions based on normal operating conditions Typical alarm conditions are set at face velocities of 10 to 30 feet per minute below the normal operating conditions due to supply air and exhaust air fluctuations as well as room air cross drafts Consult your Safety Officer for proper operating speeds Enclosure Operating In Flow Alarm Condition Set Point Speed Speed 100 10 fpm 70 90 90 10 fpm 60 80 fpm 80 10 fpm 50 70 fpm 70 10 fpm 50 60 fpm 60 10 fpm 50 fpm 51 Chapter 6 Maintaining Your Filtered Enclosure CONTROL PANEL CAEMCEALMRCHUTTON WITH TESTAESET 2 f a JA EM f gt SS dka 2 h O ee GELT BIARD DETAIL Figure 6 2 Guardian Airflow Monitor LED with Airflow Switch Guardian Digital 1000 Airflow Option Monitor Refer to Figure 6 3 for operation and calibration Refer to the separate Labconco 1000 Alarm Manual for detailed information 52 Chapter 6 Maintaining Your Filtered Enclosure Operation The Guardian Digital Airflow Monitor consists of the airflow sensor the Alarm Unit and the 15 VDC power supply For 115V operation the alarm unit is p
47. ew HEPA Filter with Bag In Bag Out Procedure for XPert Filtered Balance Systems and Stations 46 HEPA Filter Leak Test 47 setting the Inflow Face Velocity with the Speed Control Adjustment 49 Calibrate and Operate the Airflow Monitors 50 Guardian Digital 1000 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 Fluorescent Light Replacement 60 Motorized Impeller Replacement 60 Speed Control Replacement 62 CHAPTER 7 ACCESSORIZING amp MODIFYING YOUR FILTERED ENCLOSURE 63 CHAPTER 8 TROUBLESHOOTING amp SERVICER OPERATING LOG 69 APPENDIX A FILTERED ENCLOSURE COMPONENTS AND REPLACEMENT PARTS 73 APPENDIX B DIMENSIONS AND EXHAUST OPTIONS 79 APPENDIX C FILTERED ENCLOSURE SPECIFICATIONS 83 APPENDIX D QUICK CHART FOR THE FILTERED ENCLOSURES 89 APPENDIX E REFERENCES ON VENTILAITON SAFETY OCCUPATIONAL HAZARDS BIOSAFETY AND DECONTAMINATION 90 DECLARATION OF CONFORMITY 95 CHAPTER 1 INTRODUCTION Congratulations on your purchase of a Labconco XPert M Filtered Balance System or XPert M Filtered Balance Station Your enclosure provides personnel protection through superior containment while conserving energy at OSHA approved velocities as low as 60 feet per minute It is the result of Labconco s more than 50 years experience in manufacturing fume hoods and more than 30 years experience
48. he enclosure See Figures 4 and 4 2 Side Entry 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 Ergonomic Slope of 10 degrees provides maximum visibility and comfort reduces glare thereby minimizing operator fatigue See Figure 4 1 Internal Depth of 23 provides necessary depth to support modern balances and other auxiliary equipment without extending outside the enclosure or resting on the lower air foil See Figure 4 1 Safety Glass Sash with Spring Loaded Latch has a wiping seal to contain contaminants and features a spring loaded latch to secure sash open for loading and cleaning The sash must be down for normal operation See Figure 4 Utility Ports with Iris allows electrical cords and data cords to pass through the back of enclosure without leaving a large hole for contaminants to escape The enclosure ships with solid plugs Iris plugs are included with the User s Manual See Figure 4 and 4 2 Accessory Guardian Airflow Monitor or Guardian 1000 Digital Airflow Monitor continuously monitors airflow An audio visual alarm alerts the user to low airflow conditions The Guardian 1000 Digital Airflow 11 12 13 14 19 16 17 18 19 Chapter 4 High Performance Features and Safety Monitor also displays a face velocity value provides an RS232 output a night setback mod
49. he XPert Filtered Balance System uses an integral motorized XPert impeller to draw room air past the operator and through the System enclosure This contaminated air 1s then pushed through the HEPA filter The HEPA filtered exhaust air 1s then forced out the top of the enclosure An optional carbon filter may be installed on the downstream side of the HEPA filter to protect against nuisance odors Chapter 2 Prerequisites The HEPA filtered exhaust air can be recirculated into the laboratory or exhausted outside with the addition of the exhaust connection kit and remote blower listed 1n Chapter 7 The XPert Filtered Balance Station does not include the motorized impeller and must be exhausted to the outside by a remote blower The XPert Filtered Balance Station remote blower may be switched from the blower switch on the enclosure See electrical Requirements in Chapter 2 and Electrical Supply Connections in Chapter 3 Only one 6 exhaust connection is required for the 2 3 or 4 XPert Filtered Balance Stations to exhaust to the outside Data for the exhaust volume noise pressure and enclosure static pressure loss are listed for each filtered enclosure model at face velocities of 60 75 80 90 100 and 105 fpm Enclosure Width Model Description 2 XPert Filtered Balance System 2 XPert Filtered Balance Station 3 XPert Filtered Balance System 3 XPert Filtered Balance Station 4 XPert Filtered Balance System 4 XPert Filtere
50. he bag and extend it out The retaining strap provides an extra level of safety even though the enclosure 1s under negative pressure when the blower 15 on 3 Loosen the two filter clamp bolts with a 9 16 socket securing the HEPA filter See Figure 4 and 4 2 4 Place both arms in the rear gloves of the bag and carefully draw the HEPA filter out of the enclosure Rest the HEPA filter on the floor table or cart Remove arms from bag gloves 5 Create two seals between the enclosure bag access port and the old HEPA filter Seals can be heat sealed or sealed with tie wraps Cut off the bag between the two seals and leave the bag stub on the access port to the enclosure 6 Place the new HEPA filter the new bag Then place the new bag and new HEPA filter over the old bag stub and onto the enclosure access port 7 Carefully remove the old bag stub using the single glove near the access port Reattach the retaining strap on the perimeter of the new bag at the enclosure access port Draw the old bag stub into the single glove and turn the glove inside out Double seal this glove and cut off the glove with the contaminated bag stub inside 8 Carefully install the new HEPA filter and uniformly tighten the two filter clamp bolts until the HEPA filter gasket 1s compressed 50 Chapter 6 Maintaining Your Filtered Enclosure 9 Carefully fold and roll the new bag in four inch pleats and push the bag into the access port Reinstall t
51. he down position while using the enclosure Proper performance of the enclosure depends largely upon its location and the operator s work habits Consult the references in Appendix D The enclosure should be recertified whenever it 1s serviced or at least annually thereafter The filter provides personnel and environmental protection from particulate matter Because room air 15 drawn over the work surface during operation this enclosure should not be used for operations requiring product protection from environmental contamination Avoid the use of flammable gases or solvents in the enclosure 1f possible Care must be taken to ensure against the concentration of flammable or explosive gases or vapors Use of an open flame should be avoided the enclosure Open flames may disrupt the airflow patterns 1n the cabinet burn the HEPA filter and damage the filter s adhesive Gases under high pressure should not be used in the enclosure as they may disrupt the airflow patterns of the cabinet filters are only effective for entrapment of particulate matter Manipulations that generate gases or vapors from toxic chemicals or radionuclides must be evaluated carefully from the standpoint of buildup to dangerous levels the decontamination of the enclosure and compliance with applicable regulations The surface of the HEPA filter 1s fragile and should not be touched Care must be taken to avoid puncturing the filte
52. he retaining strap and bungee cords Turn the enclosure ON to draw a vacuum on the bag Reinstall the front panel r CREATE SEM HERE AFTER SE RC DUD HEF FR REALET ROD i a Pe EL FILTER 48 i y lag GLP TO SOLD PATS NE oo COVER SAEED CATAL SCREW LOLCSTICH dip II T TALE PG HERE AFTEE SL ING oe Ge STUB SLED GLE OF 7 H Ea Figure 6 1 Bag In Bag Out HEPA Filter Changing Procedure Diagram amp Filter Leak Test Diagram Filter Leak Test 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 frames Leak testing 15 to be done by a qualified technician with calibrated equipment Remove the top perforated exhaust cover by using a Phillips screwdriver to unfasten the 2 screws used to secure 2 clips See Figure 6 1 The filter passes the leak test at 01 or better Reference Leak Testing and Photometer scanning from the Institute of Environmental Services IES RP CC001 3 47 Chapter 6 Maintaining Your Filtered Enclosure Apparatus l 99 An aerosol photometer ATI model 2D 2E 2G or equivalent Air Techniques Hamilton Associates 11403 Cron Ridge Dr Owings Mills MD 21117
53. hole for contaminants to escape The remote blower for the XPert Filtered Balance Station may be connected to the blower switch on the enclosure The blower switch 15 connected to a relay whose wires are terminated in the junction box behind the front panel We recommend a maximum amperage of 6 amps for this circuit to the remote blower Please refer to the wiring diagrams in Appendix C Connect the blower wires inside the junction box to the remote blower per local electrical codes Space Requirements The dimensions for the different models are shown Appendix Dimensions CHAPTER 3 GETTING STARTED Now that the site for your filtered enclosure 15 properly prepared you are ready to unpack inspect install and validate your system Read this chapter to learn how to Unpack and move the enclosure set up the enclosure with the proper supporting structure and work surface Connect to an exhaust system 1f applicable Installation of HEPA and accessory Odor Control carbon filters Connect the electrical supply set the 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 mechanical and electrical installation tools 1n addition to 5 16 3 8 7 16 and 1 2 wrenches ratchets sockets a nut driver set a flat blade screwdriver a Phillips screwdriver and a carpenter level to comp
54. how to prepare use and shut down your filtered enclosure Chapter 6 Maintaining Your Filtered Enclosure explains how to perform routine maintenance on the filtered enclosure Chapter 7 Accessorizing Your Filtered Enclosure explains acceptable modifications to the filtered enclosure or how to add accessories Chapter 8 Troubleshooting contains a table of problems you may encounter while using the filtered enclosure including the probable causes of the problems and suggested corrective actions Appendix A Components and Replacement Parts contains labeled diagrams of all of the components of the filtered enclosures Appendix Dimensions and Exhaust Options contains comprehensive diagrams showing all of the dimensions for the filtered enclosures Chapter 1 Introduction Appendix C Specifications contains the electrical requirements for filtered enclosures Wiring diagrams are also included Appendix D Quick Chart provides an airflow table and test data for the filtered enclosures Appendix E References hsts the various resources available that address laboratory ventilation and biosafety Typographical Conventions Recognizing the following typographical conventions will help you understand and use this manual e Book chapter and section titles are shown in italic type e g Chapter 3 Getting Started e Steps required to perform a task are presented a numbered format e Comments located in the margins pro
55. in manufacturing filtered enclosures These enclosures will effectively contain toxic or noxious particulates when properly installed and operated Each enclosure uses a single HEPA filter which is rated at least 99 99 efficient for 0 3 micron particles 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 features to enhance safety performance and energy savings To take full advantage of them please acquaint yourself with this manual and keep it handy for future reference If you are unfamiliar with how high performance HEPA filtered enclosures operate please review Chapter 4 High Performance Features and Safety Precautions before you begin working in the enclosure Even if you are an experienced user please review Chapter 5 Using Your HEPA Filtered Enclosure which describes the XPert features so that you can use the filtered enclosure efficiently For weighing hazardous and nuisance powders Labconco recommends the purchase of the XPert Filtered Balance System or XPert Filtered Balance Station Both XPert Chapter 1 Introduction filtered enclosures include a true bag in bag out HEPA filter to properly protect personnel during filter changing operations See chart below and contact Labconco for additional ordering information Bag in Bag out Weighing XPert Filtered Required Ha
56. irect air into and through the contaminated air chamber Labconco engineered the filtered enclosures to minimize the effects of turbulence The containment enhancing and aerodynamic designs of the upper sash foil side air foils lower air foil upper dilution air supply and rear perforated baffle all work in concert to produce horizontal airflow patterns that significantly reduce powder chemical and particulate concentrations through the work area U S Patent No 6 461 233 23 Chapter 4 High Performance Features and Safety These concentrations of materials are predominantly removed on the first pass of airflow through the chamber resulting in high performance containment The plenum and the HEPA filter are jacketed 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 Station include a true bag in bag out HEPA filter disposal system to protect the worker from contact with hazardous powders and particulates User s of both products are encouraged to routinely check airflow with the use of the airflow monitor 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 25 Chapter 4 High Performance Features and Safety A7 HEPA Filter Clampsng Balt 26 Upper Dilt
57. lete the instructions in the chapter Each enclosure model weighs between 125 to 195 1 Ibs each 55 to 85 kg The shipping container allows for lifting with a mechanical lift truck or floor jack If you must lift the enclosure manually follow safe lifting guidelines Do not lift by the front air foil 11 Chapter 3 Getting Started The United States Interstate Commerce Commission rules require that claims be filed with the delivery carrier within fifteen 15 days of delivery 12 Unpacking the Enclosure Carefully remove the shrink wrap or carton on the enclosure and inspect it for damage that may have occurred in transit If damaged notify the delivery carrier immediately and retain the entire shipment intact for inspection by the carrier DO NOT RETURN GOODS WITHOUT THE PRIOR AUTHORIZATION OF LABCONCO UNAUTHORIZED RETURNS WILL NOT BE ACCEPTED IF ENCLOSURE WAS DAMAGED IN TRANSIT YOU MUST FILE A CLAIM DIRECTLY WITH THE FREIGHT CARRIER LABCONCO CORPORATION AND ITS DEALERS ARE NOT RESPONSIBLE FOR SHIPPING DAMAGES Do not discard the packing material until you have checked all of the components and tested the enclosure We recommend that you do not remove the enclosure from its shipping container until it 15 ready to be placed into its final location Move the unit by placing a flat low dolly under the shipping skid or by using a floor Jack Do not move the enclosure by tilting it onto a hand truck
58. ly have less vibration than the center e The bench with the balance enclosure should not contain vibration producing equipment such as shakers or pumps e Marble granite or epoxy balance tables are generally recommended by the manufacturers of analytical and microbalances See the installation instructions Chapter 3 e Marble slabs with dampening pads placed within the enclosure are also an effective low cost means of controlling vibration Temperature Variation Requirements The extent the balance readings are influenced by temperature variations 15 a function of the balance design Most manufacturers would suggest that a temperature drift of 1 2 C 1s generally tolerable Only validation through your Operational Qualification protocol can define what 1s acceptable To minimize the potential for temperature variations e Never install balances near heating sources such as radiators and hot plates e Do not place the balance and enclosure on a bench that would receive direct sunlight Chapter 2 Prerequisites Humidity and Static Electricity Requirements Electrostatics can be troublesome in a balance enclosure It is important to understand and to the extent possible control static charges An electrostatic charged vessel sample or enclosure can apply forces and lead to errors in weighing The repulsion or attraction can be detected with micro semi micro and analytical balances Static charges can also lead to pa
59. models allowed 83 Appendix C Filtered Enclosure Specifications E J I X M H Q eee _ _ Used in an environment of Pollution degrees 2 1 where normally only non conductive atmospheres are present Occasionally however a temporary conductivity caused by condensation must be expected in accordance with IEC 664 Appendix C Filtered Enclosure Specifications Vdd s mum 33unn5 xiwOd j23HH 0252 9 1 mou m 1 i De 214 TRMCILID BRA w ls WW i i i i i i i i i T TIT pun cR EH i i AELE i i i a i i FT if i i i i a i REESE C cui mm m m m T CH TETT cU NES 4 DISCERE Nd J Mum a 1 i 4 i J L 4 HU d a i H i L 1 i i I mum Sr Ee um um m m EE
60. n be adsorbed by activated carbon or neutralized by chemically treated carbon Once the capacity of the carbon is reached it is considered to be saturated and will adsorb or neutralize no further material the outlet concentration of the chemical will equal the inlet concentration from that point until the filter 15 replaced Note that the capacity of activated carbon 15 not a constant but varies with the inlet concentration Labconco Technical specialists can determine with the computerized carbon modeling program the estimated time saturation for a particular chemical When using a HEPA filter alone in all filtered enclosures or in combination with an Odor Control carbon filter the speed control will need to be increased to allow for HEPA filter loading Measure filtered enclosure face velocity with an anemometer IDLH Immediately Dangerous to Life and Health An atmosphere that poses an immediate hazard to life or produces 39 Chapter 5 Using Your Filtered Enclosure and Appropriate Application 40 immediate irreversible health effects IDLH concentrations should not be approached in the enclosure Appropriate Chemicals for Odor Control Carbon Filters Below 15 a general set of rules to determine appropriateness of chemical usage Selected organic chemicals considered to be occupational carcinogens by NIOSH can be used in the filtered enclosure with carbon filters under rigid restrictions See separate discussion on ca
61. n the chemical concentration 15 below the measurement range of detector tubes Odor Control Carbon Filter Replacement Procedure See Figures 4 1 and 4 2 for Carbon Filter Replacement 1 The carbon filters are replaced by first removing the two screws which hold the clips to secure the upper diffuser screen Remove the screws clips and upper diffuser screen 2 Remove the carbon filter in a careful way to avoid the flow switch and HEPA filter 57 Chapter 6 Maintaining Your Filtered Enclosure 58 3 Re install the new carbon filter with the gasket down Replace the upper diffuser screen clips and two screws 4 The weight of the carbon filter with the gasket down will compress the gasket Calculating Odor Control Carbon Filter Life Labconco developed a modeling program to estimate the filter life for typical carbon filters Since filter life 15 dependent on the chemical used the airflow filter size and the dwell time refer to the Chemical Guide for the Paramount Filtered Enclosure The estimated life for Odor Control carbon filters for the filtered enclosures 1s conservatively calculated at 50 or half of the published values for the Paramount in the Chemical Guide For example if you use isopropyl alcohol to disinfect and use approximately 100 ml per week during 2 hours of use per day then follow these steps to calculate the concentration in parts per million ppm Steps for Calculating PPM and Filter Life 1
62. n the enclosure s work area must not exceed the IDLH for the chemical and the exhaust from the enclosure must not exceed the TWA Formaldehyde requires the use of an impregnated carbon for the treatment of formaldehyde Concentrations in the enclosure s work area must not exceed the IDLH for the chemical and the exhaust from the enclosure must not exceed the TWA Treats ammonia low molecular weight amines and other bases designated by NIOSH as acceptable for use with ammonia cartridge type respirators Requires the use of an impregnated carbon Concentrations in the enclosure s work area must not exceed the IDLH for the chemical and the exhaust from the enclosure must not exceed the TWA Important Carbon filters do not provide any particulate protection but provide odor control Connecting the Electrical Supply Source to the Filtered Enclosure 115V Models simply connect the 115V power cord supplied to the IEC electrical supply plug on the back of the enclosure If using at 50 Hz XPert operations blower performance maximum airflow will be reduced System by 17 For the remote blower used for XPert Stations follow the wiring XPert diagram in Appendix C and wire the blower wires in the electrical e junction box located behind the front panel These wires are Station switched by the electrical relay via the blower switch Chapter 3 Getting Started DL eee SSS ccs E euo cp a SSS The maximum circuit
63. nd Figure 3 3 for exhaust kit options for the XPert Filtered Balance System Consult Labconco Customer Service should you require help sizing your blower for the exhaust volume and system static pressure loss To ensure compatibility the selected exhaust duct material should match the enclosure procedures and chemical applications 15 Chapter 3 Getting Started 6 06 ID EXHAUST 67 L OMEN MP E EE 37 08 28 64 ENCLOSURE Figure 3 2 XPert Filtered Balance Station only Model Series 3940200 3940300 and 3940400 16 Chapter 3 Getting Started FOR 6 NOMINAL PVC DUCT CONNECTION 6 09 ID 619700 1167 4 m 200 47 68 Figure 3 3 Exhaust Duct Connection Kit shown installed on XPert Filtered Balance System Optional Kit 3924400 2 3924401 3 and 3924402 4 p HM PA A C 17 Chapter 3 Getting Started 18 HEPA ACCESSORY CARBON Installation of HEPA Filters and Accessory Odor Control Carbon Filters HEPA Filters HEPA filters are shipped installed with the gasket on the downstream side The HEPA filters are leak checked at Labconco A second leak check 15 recommended before using the enclosure and at least annually thereafter Consult your Safety Officer and Chapter 6 for the HEPA Filter Leak Test and HEPA Filter Bag In Bag Out Procedure See Figure 4 2 for HEPA filte
64. ntaining Your Filtered Enclosure 44 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 1 CARBON CARBON 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 1s 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 1f the airflow alarm monitor alerts you Airflow monitors are recommended While the enclosure 1s 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
65. only For ammonia use 10 of the impregnated carbon weight Assume use of a 50 solution of ammonia for these calculations Pounds of Adsorbed Ammonasorb Volume of 50 Model Carbon Adsorbed weight of Ammonia Size Filter Size Ammonia Solution 18 18x 1 0 92 Ibs 418g 836 ml 3 30x 18x 1 1 35 Ibs 613g 1226 ml 42x 18x 1 1 89 Ibs 859g 1718 ml Initial Certification The filtered enclosure has been certified at the factory for an inflow velocity of 90x10 fpm along with the HEPA Filter Leak Test The filtered enclosure should be certified for the proper inflow velocity required by your Safety Officer It is also conservative recommendation to perform the HEPA Filter Leak Test again should there be any damage caused during transport Re Certification Under normal operating conditions the enclosure should be recertified at least annually if serviced The certifier should perform the following tests e Inflow Velocity Test e HEPA Filter Leak Test In addition the following tests should also be performed at the user s discretion 59 Chapter 6 Maintaining Your Filtered Enclosure 60 XPERT FILTERED BALANCE SYSTEM Measure of Line Voltage and Current Smoke Test to determine proper airflow patterns Lighting Intensity Test when appropriate Noise Level Test when appropriate Vibration Test when appropriate Fluorescent Light Replacement 1 Disconnect the power 2 Locate the small light refle
66. ory special with an additional connector for the following external inputs and having the following possible functions Chapter 6 Maintaining Your Filtered Enclosure e External Alarm allows an external signal to sound the alarm such as a sash open switch or a fail signal from the building airflow system e Alarm Disable allows an external signal to prevent low airflow alarm from occurring e Night Setback allows an external signal to prevent a low airflow alarm from occurring not any different from Alarm Disable above other than the terminology Contact Labconco for ordering information on this special PCB Calibration 1 Ensure the flow switch and alarm circuit board are installed and operational 2 Allow the enclosure to operate for at least two minutes 3 If factory installed the monitor will alarm at 60410 fpm with the inflow velocity set at 90410 fpm 4 To change the factory setting set the inflow velocity required by your Safety Officer to the desired alarm condition using the speed control adjustment procedure outlined Chapter 6 5 Once the alarm condition 15 set use a small screwdriver to turn the adjustment screw on the airflow switch counterclockwise facing the screw until the low airflow red LED lights and the audible flow alarm sounds 6 Adjust the inflow velocity to the nominal operating point required by your Safety Officer 7 Over time the HEPA filter will load and ev
67. osure sash Close sash to the lowest position closed clogged with chemicals won t operate into outlet electrical service Circuit breaker s Reset or replace circuit breaker tripped properly disconnected Defective lamp Replace lamp Light switch 15 Replace light switch defective Defective electronic Replace ballast ballast Airflow monitor No power Power cable to circuit board is malfunction No lights disconnected and needs to be No display connected Sensor cable needs to be connected Power supply is not plugged into proper voltage plug in power supply Verify that all airflow monitor interface cables are connected Check fuses on enclosure No audible alarm Alarm has been temporarily silenced using SILENCE ALARM or enter buttons 70 Chapter 8 Troubleshooting PROBLEM CAUSE CORRECTIVE ACTION Airflow Monitor Wrong alarm set Airflow monitor was not properly Malfunction point adjusted Repeat calibration steps Continued outlined this manual in Chapter 6 or in the supplied Digital 1000 Monitor Manual alarm airflow monitor See Chapter 6 Continuous alarm Check the face velocity of the enclosure as the airflow of the system may have changed If incorrect adjust the speed control to increase face velocity The HEPA filter may have become loaded If face velocity 1s correct calibrate the airflow monitor outlined in this manual in Chapter 6 Monito
68. owered by plugging the power supply into the factory prepared digital airflow monitor socket For 230V operation the Alarm Unit 1s powered by plugging the power supply into a building outlet The alarm has Enter and buttons to program the monitor There 15 also a green LED SAFE yellow LED CAUTION and red LED LOW with audible alarm for airflow conditions The audible alarm can be permanently muted if desired The Guardian Digital 1000 Airflow Monitor displays a face velocity value provides an RS232 communications port to a PC or building computer system can be configured for external input connections such as night setback or external alarm and provides up to three output relays that can be configured For complete detailed information please refer to the separate Labconco 1000 Alarm User s Manual provided with the 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 Labconco 1000 Alarm User s Manual that comes with the enclosure To successfully calibrate it will be necessary to change the face velocity by adjusting the airflow exhaust volume with the speed control The exhaust volume can be adjusted with the speed control or by using an adjustable damper for outside exhaust NOTE For accurate calibration the front panel needs to be in place for each lo
69. r alarms air Lightly clean the airway with clean way to airflow air Be careful not to touch sensitive monitor sensor 1s electrical components blocked by insects dust or debris Audible disable An alarm condition must be will not stay continuously present before the operational audible alarm can be silenced If flow conditions fluctuate near the alarm set point the airflow monitor will automatically reset it Action should be taken to bring the enclosure airflow into proper operating parameters or adjust the alarm set point lower 71 Chapter 8 Troubleshooting Service Operating Record Log Customer Name Model Number Date Installed Serial Number Unit Location 72 APPENDIX FILTERED ENCLOSURE 5 AND REPLACEMENT PARTS The components that are available for your filtered enclosure are listed The parts shown are the most commonly requested If other parts are required please contact Product Service 73 Appendix Replacement Parts 1 1 3911000 Glass Side 2A 1 2391190 Glass Sash gt 2B 1 391190 Glass Sash 00 0 2C 1 939192 GlssSah4 gt LA 3A 1 3911800 jSashAsembly2 0 3B 1 3911801 Sash Assembly 3 0 1 3C 1 391802 Sash Assembly 4 0 0 4A 3905600 LowerAirFo2 S 4B 1 93905601 LowerAirFoib3 4C 1 390502 LowerAirFoi4 5A 1 390
70. r during installation or normal operation If you suspect that a HEPA filter has been damaged DO NOT use the enclosure contact a local certification agency or Labconco The HEPA filter the enclosure will gradually accumulate airborne particulate matter from the room and from work performed in the enclosure The rate of accumulation will depend upon the cleanliness of the room air the amount of time the enclosure 16 operating and the nature of work being done in the enclosure With normal usage the HEPA filters will last two to five years before requiring replacement 20 21 22 23 24 25 26 2d 28 Chapter 4 High Performance Features and Safety Ensure that the filtered enclosure 1s connected to an electrical service in accordance with local and national electrical codes Failure to do so may create a fire or electrical hazard Do not remove or service any electrical components without first disconnecting the filtered enclosure from electrical service Use of an open flame must be avoided with the enclosure Open flames may disrupt the airflow patterns in the enclosure and cause a fire hazard with volatile solvents Increase the face velocity by adjusting the speed control of the motorized impeller on the XPert Filtered Balance System or change the HEPA filter when the face velocity falls below acceptable limits established by your Safety Officer Exhaust carbon filters and HEPA filters are disposed
71. r location HEPA filter gasket filter clamp bolts and bag in bag 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 safe design ensures containment Carbon Filters Accessory for Odor Control only For carbon filter installation first remove the upper perforated cover secured by Phillips head screws on the top of the enclosure see Figures 4 4 2 for location of the upper perforated cover see Chapter 7 for a list of available carbon filters All carbon filters are simply gravity installed with the gasket side down and down stream on the exhaust side of the HEPA filter Install the correct carbon filter for the application Chapter 3 Getting Started Filter Type Appropriate Use 2 3 4 Organic Vapor Activated Carbon 2 2 4 Formaldehyde HEPA 3707900 3707901 3707902 3937200 3937300 3937400 Formalin 2 3 4 Ammonia and 2 3 4 3937201 3937301 3937401 Amines 3937202 3937302 3937402 HEPA filters are high efficiency particulate air filters having a particulate removable efficiency of 99 99 for particles with a diameter of 0 3 micron Adsorbs organic compounds designated by NIOSH guidelines as acceptable for use with chemical cartridge type respirators Concentrations i
72. rategically 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 temperature variation requirements The humidity and static electricity requirements The location and air current requirements The exhaust and blower requirements The electrical power requirements The space requirements Refer to Appendix b XPert Dimensions for complete enclosure dimensions Refer to Appendix C XPert Specifications for complete filtered enclosure electrical and environmental conditions specifications and requirements Chapter 2 Prerequisites Support Vibration and Movement Requirements At a minimum the supporting structure usually consists of a base cabinet and chemical resistant work surface The ability for analytical balances to accommodate vibration varies with type and brand More advanced balances have improved tolerance however in the preparation of a balance enclosure site please consider the following e Avoid tubular stands or mobile benches that have the potential of moving when touched e Work surfaces should be of a thick rigid material that remains stable when buttons are pressed An epoxy benchtop or accessory work surface is a minimum requirement Abench that is rigidly mounted to the floor or fixed to the wall but not both may be appropriate e The corners of a building typical
73. ration Manufacturer s Address 8811 Prospect Avenue Kansas City MO 64132 USA Importer s Name Sec Shipping Customs Documents Importer s Address See Shipping Customs Documents for your equipment Type of Equipment Laboratory Equipment XPert Balance Systems and Stations Ju Series T XPert Filtered Balance Station 3940300 Series Y XPert Filtered Balance Savion DHE Series 4 XPert Filtered Balance Station 3950200 Series 2 Filtered Balance System 3950500 Series X Filtered Balance Sysiem 39 50400 Series 4 XPert Filtered Balance System Serial Various See Individual Declaration Year of Manufacture 2004 and subsequent I the undersigned hereby declare that the equipment specified above conforms to the above Directive s and Standards Sec individual Declaration of Conformity which will be signed by the importer for your country z a Full Name Position An individual version of this declaration is included with your shipping customs documentation Labconco P N 369608 REV 95 For more information please contact us E mail sales expotechusa com Website www ExpotechUSA com
74. rcinogens for special instructions Organics must have time weighted exposure limits TWA of 1 PPM or greater Chemicals must have a detectable odor at concentrations below the TWA for the chemical Chemicals must be designated by NIOSH guidelines as acceptable for use with chemical cartridge type respirators the exception 15 formaldehyde and ammonia amines which used impregnated carbon Chemicals not listed by NIOSH in the Pocket Guide must be approved by Labconco Product Specialist or Engineering Inlet concentration must never exceed the IDLH Immediately Dangerous to Life and Health concentrations Chemicals having a recommendation by NIOSH of at least Escape GMFOV Gas Mask Full Face Respirator When evaporating a mixture of chemicals the chemical having the lowest TWA will be used to determine if the mixture meets the guidelines Call a Labconco Product Specialist at 1 800 821 5525 for assistance in chemical appropriateness Hazardous Misapplications for Odor Control Carbon Filters with Volatile Chemicals There is one scenario where the accessory carbon filter misapplication would be a part of a hazardous condition If the Chapter 5 Using Your Filtered Enclosure and Appropriate Application user continues to operate the enclosure with any of the following conditions present a potentially hazardous condition will exist 1 The inlet concentration of vapors 15 greater than the TWA The carbon filter becomes sat
75. rompt to sample the chemical concentration on the exit side of the carbon filter e Organic chemicals approved for use in the filtered enclosure have odors that are detectable before reaching the time weighted exposure limits Detection Tubes Color change indicators can be used to measure the concentration of the chemical at the exit side of the carbon filter or in the outlet exhaust A kit including syringe pump and flexible tubing can be purchased as an accessory from Labconco Catalog 6924900 Labconco Customer Service Representatives are supplied with detector tube catalog numbers as well as telephone numbers to direct you to where to purchase these items For Organic Formaldehyde and Ammonia chemical specific detector tubes should be purchased when installing fresh filters Each kit contains instructions on how many strokes of the syringe are required to obtain the stated sensitivity The sampling syringe is connected to the filtered enclosure exhaust Connect the syringe to the detector tube while the system 1s running and pull the air through the tube with the syringe Each stroke of the Chapter 6 Maintaining Your Filtered Enclosure syringe represents a 100 ml sample and corresponds to the number of strokes necessary to give the indicated color changes Due to the wide variety of organics and varying TWA s it is recommended that specific detector tubes be purchased directly from Sensidyne Draeger or your laboratory supply
76. rticulates being attracted to surfaces within the balance enclosure Containment of harmful powders prevention of cross contamination and clean up are enhanced when static attraction of powders 15 minimized The construction of the XPert Filtered Balance System and XPert Filtered Balance Station avoid the use of plastics which are highly insulative The advantages to the glass and epoxy coated metal construction are twofold 1 The enclosure 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 enclosure To correct or ensure against electrostatic 1ssues the following additional measures may be prescribed to improve weighing operations e Maintain a humidity level between 45 and 60 The ability to sustain this humidity range can be challenging depending upon the regional climate and HVAC system e Jonizers in various forms guns bars and blowers are effective ways to flood an area with 10ns and essentially neutralize electrostatic electricity Background on Electrostatics or Static Electricity Electrostatic charges on a surface such as the wall of a balance enclosure are not created by moving air Gases do not cause the charge Impurities within the air impinging upon surfaces dictate the polarity and magnitude of the charge The process triboelectrification occurs when the d
77. ted Acid Use Routine Daily Work Procedures Planning Thoroughly understand procedures and equipment required before beginning work 35 Chapter 5 Using Your Filtered Enclosure and Appropriate Application 36 Arrange for minimal disruptions such as room traffic or entry into the room while the enclosure is in use Start up Turn on exhaust system and accessory light Only raise the sash for loading and cleaning Check the baffle air slots for obstructions Allow the enclosure to operate unobstructed for 1 minute Wear a long sleeved lab coat and rubber gloves Use protective eyewear Wear a protective mask 1f appropriate Consult your Safety Officer for additional personal protective equipment recommendations Loading Materials and Equipment Load only the materials required for the procedure Do not overload the enclosure Do not obstruct the air foil or rear baffle slots Large objects should 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 area Work Techniques Keep all materials inside the lower air foil and perform all contaminated operations as far to the rear of the work area as possible segregate all clean and contaminated materials in the work area Avoid using techniques or procedures that disrupt the airflow patterns of the enclosure Final Purging
78. trol gives the correct face velocity and 1s located behind the front panel The face velocity should be adjusted from 60 to 100 Filtered fpm for weighing operations Consult your Safety Officer for Balance airflow recommendations for your application Containment is maximized at a setting within this range Working at the lowest face velocity appropriate for the application will give the quietest operation Face velocity measurements are made using an anemometer electric anemometer can be obtained from your laboratory supply dealer Face velocity measurements should be taken in accordance with the ndustrial Ventilation Manual Using a small Phillips screwdriver adjust the speed control to give the required face velocity See Figures 6 1 and 6 2 Chapter 6 to locate the speed control The face velocity 1s increased by turning the speed control counter clockwise and clockwise to decrease face velocity System Only Validating the Vented Enclosure To determine the actual face velocity at the sash opening airflow velocity readings are taken This should be done across the sash opening of the enclosure in accordance with the ndustrial Ventilation Manual See Appendix E The average face velocity is achieved by taking readings in two rows across the enclosure with the readings 6 from the ends and evenly spaced every 12 the first row 1s 3 down from the upper sash foil and the second row is 3 up from the work surface
79. ts Humidity and Static Electricity Requirements Background on Electrostatics or Static Electricity Location and Air Current Requirements Exhaust and Blower Requirements Electrical Requirements Space Requirements CHAPTER 3 GETTING STARTED Unpacking Your Enclosure Installing the Filtered Enclosure on a Supporting Structure and Work Surface Connecting to the Exhaust System Optional Installation of HEPA Filters and Accessory Odor Control Carbon Filters Connect the Electrical Supply Source to Filtered Enclosure set the Face Velocity with Speed Control Adjustment Validating the Vented Enclosure sealing the Filtered Enclosure to the Work Surface CHAPTER 4 HIGH PERFORMANCE FEATURES AND SAFETY PRECAUTIONS Components safety Precautions CHAPTER 5 APPROPRIATE APPLICATIONS FOR YOUR FILTERED ENCLOSURE Routine Daily Work Procedures suitable Applications HEPA Filter Applications Suitability amp Guidelines Odor Control Carbon Filter Applications Definition of Terms Appropriate Chemicals for Odor Control Carbon Filters Hazardous Misapplications for Odor Control Carbon BK We N N OQ ON tA O ER N e Filters with Volatile Chemicals 40 Chemical Carcinogen Use with Odor Control Carbon Filters 4 Prohibited Acid Use 41 CHAPTER 6 MAINTAINING YOUR FILTERED ENCLOSURE 43 Routine Maintenance Schedule 44 Decontamination 45 Determination of when to Replace HEPA Filters 45 How to Install a N
80. ty and Health Administration 29 CFR Part 1910 Occupational Exposures to Hazardous Chemicals in Laboratories Final Rule Vol 55 No 21 Washington D C 1990 DiBerardinis L et al Guides for Laboratory Design Health and Safety Considerations Wiley amp Sons 1987 McDermott Henry Handbook of Ventilation for Contaminant Control 24 Edition Butterworth Publishers 1985 Miller Brinton M et al Laboratory Safety Principles and Practices American Society for Microbiology Washington D C 1986 NIH Guidelines for the Laboratory Use of Chemical Carcinogens NIH Publication No 81 2385 Rayburn Stephen R The Foundation of Laboratory Safety A Guide for the Biomedical Laboratory Springer Verlag New York 1990 Sax N Irving and Lewis JR Richard J Rapid Guide to Hazardous Chemicals in the Workplace Van Nostrand Reinhold 1987 Schilt Alfred A Perchloric Acid and Perchlorates The G Frederick Smith Chemical Company Columbus OH 1979 Steere Norman CRC Handbook of Laboratory Safety 2 Edition CRC Press 1971 Collins C H 1988 Laboratory Acquired Infections History Incidence Causes and Prevention ne Butterworths London 93 Appendix E References 94 Kruse R H WH Puckett and J H Richardson 1991 Biological Safety Cabinetry Clin Microbiol Rev 4 207 241 Miller C D D H M Groschel J Richardson D Vesley J R Songer R D Housewright and W E Barkley 19
81. urated 3 The ventilation of the room is insufficient to dilute the exhaust of the enclosure to below the TWA for the chemical When the inlet concentration is greater than the TWA extra measures must be taken to monitor the filter and number of room air exchanges Chemical Carcinogen Use with Odor Control Carbon Filters selected carcinogens may be used safely with Odor Control carbon filters under the following restrictions The use of a vented fume hood or ventilated enclosure with ducting to the outside 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 use of the XPert Filtered Balance Station which uses a remote blower The potential carcinogens are listed the NIOSH Pocket Guide to Chemical Hazards as Each potential carcinogen must have a TWA of 1 or greater have minimum respirator recommendation of Escape GMFOV and an odor threshold significantly lower than the TWA for the chemical The inlet concentration or the evaporation rate of the chemical must never exceed the TWA for the chemical Consult a Labconco Technical Specialist for estimated saturation life See Chapter 6 for an example of estimating saturation life Another source is the Labconco chemical guide for carbon filtered enclosures Prohibited Acid Use The XPert Filtered Balance System motoriz
82. user Screen ww 44 Accessory Corbon Filter Locotian for Odor Central 27 Bag in Bag aut Filler Access 2D HEPA Filter for Powders or HEPA Filter Access E enar a 2 7 Particulates Speed Control Adjustment d i m Li 2 Cantainment Enhancing Upper Seth Fail i n Arf lu 5 Side Entry Air Foils M DILE 77 Aerodynamic Cleon Sweep Ar Fail l 4 Figure 4 2 HEPA Filtered Enclosure Airflow Diagram 26 Chapter 4 High Performance Features and Safety l Aerodynamic Clean Sweep M Air Foil has a unique shape that allows air to sweep the work surface for maximum containment The Clean Sweep openings create a constant protective barrier from contaminants Should the operator inadvertently block the airflow entering the air foil air continues to pass under the air foil and through the Clean Sweep openings See Figures 4 and 4 3 Figure 4 3 I f is I 2 I H G Te HH i i P TEN i Hg UM d r a B fete fe j Pam ru 2 Containment Enhancing Upper Sash Foil includes an open air passage directly atop the sash foil to bleed air into the hood chamber and direct chemical powder and particulate materials away from the sash opening The radiused sash foil sweeps airflow into the hood with minimal turbulence See Figures 4 1 and 4 4
83. ust particles contact the surface creating friction and electrons move across the interface Chapter 2 Prerequisites The ability of a material to become polarized is a property known as permittivity On highly insulative materials like acrylic 10ns or charged molecules are strongly bound to the surface by polarization forces The higher the force the higher 15 the permittivity value of the material It is suggested by balance manufacturers that the use of high permittivity materials such as plastic be avoided since static electricity 1s a surface phenomenon materials can also be classified by their surface resistivity measured in ohms per square The table below lists the surface resistivity of various classes of material Surface Resistivity Table 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 does not affect most modern balances with draft shields However as a precautionary safety measure and a higher level of quality management it 1s recommended that the enclosure be placed in an area to avoid e High traffic areas where walking might cause an air disturbance or be a nuisance to balance readings e Overhead or wall HVAC diffusers fans radiators or other lab equipment producing air currents e Next to doorways or windows that may be opened Exhaust and Blower Requirements T
84. vide suggestions reminders and references e Critical information is presented in boldface 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 e Critical information is presented in boldface type in paragraphs that are preceded by the wrench icon A trained certifier or contractor should only perform these operations Failure to comply with the information following a wrench icon may result in injury to the user or permanent damage to your hood Important information is presented capitalized type in paragraphs that are preceded by the pointer icon It 1s imperative that the information contained in these paragraphs be thoroughly read and understood by the user 3 number icon precedes information that is specific to a particular model of enclosure The 2 icon indicates the text 1s specific to the 2 foot wide model The 3 icon indicates the text is specific to the 3 foot model etc S CHAPTER 2 PREREQUISITES Before you install the filtered enclosure you need to prepare your site for installation You must be certain that the area 1s level and of solid construction In addition a dedicated source of electrical power should be located near the installation site to power the filtered enclosure balance and other apparatus Additionally the enclosure should be st
85. w calibration and high calibration set points to simulate real usage Typical calibration conditions are set at face velocity air sample differences of a least 50 feet per minute However the airflow monitor is factory set and calibrated with a difference of at least 20 fpm and can be changed in the CAL CONFIG MENU by changing the lower higher air sample difference If changed then also change the sensor difference in CAL CONFIG MENU from 10 to 3 To change the red Low airflow alarm and yellow CAUTION adjust the values in CAL CONFIG MENU Set WARNING or CAUTION air reset to 3 fpm To complete the CAL CONFIGURATION be sure to enter Done 53 Chapter 6 Maintaining Your Filtered Enclosure 54 start the calibration use the Labconco 1000 Manual and enter the CALIBRATIION mode on the display Follow the instructions on the display and alter the low and high exhaust volumes with the speed control The following suggested inflow face velocity speeds are recommended to successfully 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 in SETUP Once completed go to RUN and hit ENTER Nominal Enclosure Low High Low Air Alarm Operating In Flow Calibration Calibration Set Point Speed Set Point Set Point 70 90 100 fpm 60 80 fpm 110 140 fpm
86. zardous amp Balance included with Nuisance System XPert XPert Powders amp Filtered Particulates Balance Station Weighing XPert Filtered Required Hazardous and Balance included with Nuisance System XPert XPert Powders Filtered Particulates amp Balance Volatile Station Chemicals t is recommended that a Labconco product specialist review the chemical application to determine if it is suitable Consult Chapter 5 and Chapter 6 Chapter 1 Introduction About This Manual This manual 1s designed to help you learn how to install use and maintain your filtered enclosure Instructions for installing optional equipment or accessory carbon filters on your filtered enclosure are also included Chapter 1 Introduction provides a brief overview of the filtered enclosure explains the organization of the manual and defines the typographical conventions used in the manual Chapter 2 Prerequisites explains what you need to do to prepare your site before you install the filtered enclosure Electrical and service requirements are discussed Chapter 3 Getting Started contains the information you need to properly unpack inspect install and certify the filtered enclosure Chapter 4 High Performance Features 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 basic operation of

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