Gentek 3980401 Calibrate and Operate the Airflow Monitor, Guardian Airflow Monitor LED Monitor

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Chapter 6: Maintaining Your Filtered Enclosure

Setting the Inflow Face Velocity with the Speed Control Adjustment

1.Remove the front panel by loosening the (2) Phillips screws on top that secure the front panel.

2.The speed control is 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.

Options

Calibrate and Operate the Airflow Monitor

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 it classifies as “good/safe” or “low/alert.”

The circuit board provides power to the sensor and also contains a “safe (green)” and “alert (red)” 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

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Contents User’s Manual USA Warranty Prerequisites Able OntentsMaintaining Your Filtered Enclosure Chapter Introduction Introduction About This ManualGetting Started Typographical ConventionsIntroduction Chapter Prerequisites Support, Vibration and Movement Requirements Location and Air Current RequirementsExhaust and Blower Requirements Space Requirements Electrical RequirementsPrerequisites Lift 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 Connecting to the Exhaust System Optional Getting Started Installation of Hepa Filters Accessory Odor Control Carbon Carbon Filters Accessory for Odor Control onlyHepa Filters 115V Models Filter Type Appropriate UseValidating the Vented Enclosure Set the Face Velocity with 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 ProceduresFinal Purging Start-upLoading Materials and Equipment Work TechniquesShutdown Suitable ApplicationsHepa Filter Applications Suitability and Guidelines Unloading Materials and EquipmentOdor Control Carbon Filter Applications sold as an accessory Definition of Terms Appropriate Chemicals for Odor Control Carbon Filters Chemical Carcinogen Use with Odor Control Carbon Filters Prohibited Acid Use Chapter Maintaining Your Filtered Enclosure Routine Maintenance Schedule WeeklyMonthly or more often as required Determination of when to Replace Hepa Filters DecontaminationAnnually How to Install a New Hepa Filter Hepa Filter Changing Diagram & Filter Leak Test Diagram Purpose Hepa Filter Leak TestAcceptance Labconco Airflow Monitor / Airflow Switch Operation Calibrate and Operate the Airflow MonitorGuardian Airflow Monitor LED Monitor Calibration Enclosure Operating In-Flow Alarm Condition Set Point Speed Guardian Airflow Monitor LED with Airflow Switch Maintaining Your Filtered Enclosure Odor Control Carbon Filter Replacement Procedure See Steps for Calculating PPM and Filter Life Calculating Odor Control Carbon Filter LifeAmmonia only Initial CertificationRe-Certification Formaldehyde onlyFluorescent Light Replacement UV Light ReplacementMotorized Impeller Replacement Motorized Impeller Replacement Speed Control Replacement Work Surfaces Chapter Accessorizing Modifying Your Filtered EnclosureRemote Blowers For Purifier Class I Enclosure Guardian LED Airflow MonitorExhaust Transition Kits for Ducting to Outside Part DescriptionFor Purifier Hepa Filtered Enclosure Accessory Filters Hepa Filter Exhaust DampersOdor Control Carbon Filter Utility 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 3788200 Snubber, Filter Pressure Gauge Hepa Appendix B Dimensions Exhaust Options Appendix B Dimensions and Exhaust Options 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

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