Gentek 3940422 3950200 Routine Maintenance Schedule, Weekly, Monthly or more often as required

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Chapter 6: Maintaining Your Filtered Enclosure

Routine Maintenance Schedule

HEPA

CARBON

CARBON

Weekly

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

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

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

Monthly (or more often as required)

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

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

•All weekly activities.

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

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

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

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Contents User’s Manual USA Warranty Prerequisites Able OntentsMaintaining Your Filtered Enclosure Chapter Introduction Introduction About This Manual Typographical Conventions Chapter Prerequisites Support, Vibration and Movement Requirements Temperature Variation RequirementsBackground on Electrostatics or Static Electricity Humidity and Static Electricity RequirementsExhaust and Blower Requirements Location and Air Current RequirementsSurface Resistivity Table XPert Station Space Requirements Electrical RequirementsLift by the front air foil Chapter Getting StartedDo not move the enclosure by tilting it onto a hand truck Unpacking the EnclosureWork Surface and Hepa Filtered Enclosure Installation Work Surface SpecificationsFiltered Enclosure Installation XPert Station Getting Started Getting Started Carbon Filters Accessory for Odor Control only Installation of Hepa Filters Accessory Odor Control CarbonHepa Filters 115V Models Filter Type Appropriate UseGetting Started Validating the Vented Enclosure Set the Face Velocity with the Speed Control AdjustmentSealing the Filtered Enclosure to the Work Surface High Performance Features Chapter High Performance Features and Safety PrecautionsHigh Performance Features and Safety 1510 Hepa Filtered Enclosure Airflow Diagram High Performance Features and Safety High Performance Features and Safety High Performance Features and Safety High Performance Features and Safety Safety Precautions High Performance Features and Safety High Performance Features and Safety High Performance Features and Safety Planning Routine Daily Work ProceduresLoading Materials and Equipment Start-upWork Techniques Final PurgingHepa Filter Applications Suitability and Guidelines Suitable ApplicationsShutdown Odor Control Carbon Filter Applications sold as an accessory Definition of Terms Appropriate Chemicals for Odor Control Carbon Filters Prohibited Acid Use Chemical Carcinogen Use with Odor Control Carbon FiltersBalance Station, which uses a remote blower Chapter Maintaining Your Filtered Enclosure Weekly Routine Maintenance ScheduleMonthly or more often as required Decontamination Determination of when to Replace Hepa FiltersAnnually Maintaining Your Filtered Enclosure Purpose Hepa Filter Leak TestMineral oil Catalog #1491400 Acceptance Calibrate and Operate the Airflow Monitors Labconco Airflow Monitor / Airflow Switch OperationGuardian Airflow Monitor LED Monitor Calibration Enclosure Operating In-Flow Alarm Condition Set Point SpeedGuardian Digital 1000 Airflow Monitor Guardian Airflow Monitor LED with Airflow SwitchDigital 1000 Calibration OperationFactory Settings Guardian Digital 1000 Airflow Monitor Maintaining Your Filtered Enclosure Odor Control Carbon Filter Replacement Procedure See Steps for Calculating PPM and Filter Life Calculating Odor Control Carbon Filter LifeRe-Certification Initial CertificationFormaldehyde only Ammonia onlyMotorized Impeller Replacement Fluorescent Light ReplacementMotorized Impeller Replacement Speed Control Replacement Work Surfaces Chapter Accessorizing Modifying Your Filtered EnclosureAirflow Monitor Add appropriate Front Panel with cutout to mount DigitalExhaust Transition Kits for Ducting to Outside Remote Blowers Part DescriptionExhaust Dampers Accessory Filters Hepa FilterHepa Filter Bag-In/Bag-Out Bag Odor Control Carbon FilterUtility Shelf Kit Storage CabinetsAccessorizing and Modifying your Filtered Enclosure Problem Cause Corrective Action Chapter Troubleshooting Servicer Operating LOGTroubleshooting Problem Cause Corrective Action Date Comments Service Operating Record LogAppendix a Filtered Enclosure Components Replacement Parts Qty Part Number Description Qty Part Number Description Long Use for XPert System and XPert Station Use for XPert System, XPert Station, Digital Monitor and Bag Appendix B Dimensions Exhaust Options Figure B-1 XPert Filtered Balance System Figure B-2 XPert Filtered Balance Station Appendix B Dimensions and Exhaust Options Environmental Conditions Appendix C Filtered Enclosure SpecificationsAppendix C Filtered Enclosure Specifications Appendix C Filtered Enclosure Specifications Appendix C Filtered Enclosure Specifications Appendix C Filtered Enclosure Specifications Appendix C Filtered Enclosure Specifications Model Size Ppendix Uick Hart Iltered NclosuresNon-mandatory recommendations from Prudent Practices Appendix E References Nfpa 30 2000 Flammable and Combustible Liquids Code General References Laboratory Safety, Principles and Practices, American Page USA