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 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%

See Chapter 6. Saturation Level or Time – There is a limit to the amount of chemical that can 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 is replaced. (Note that the capacity of activated carbon is not a constant, but varies wi

Either monitor is usually provided with the XPert enclosures. Description Order Part #’s Individual Parts Required Guardian Airflow Monitor 115V or 230V 1 ea. 3811500 Airflow Monitor Printed Circuit Board 1 ea. 3910700 Airflow Sensor w/ Connector 2 ea. 1885405 #6-32 x .31" Phillips machine screw to mount Airflow Monitor Circuit Board 2 ea. 1891808 #6-32 x .50" Phillips thread cutting screw to mount Airflow Sensor Guardian Digital 1000 Airflow Monitor 115V 1 ea. 3908500 115V Guardian Digital Moni

S.S. 19 1 3926800 Label, Front XPert 20A 1 3910700 Airflow Switch 20B 2 1891808 Screw, Thread Cutting #6-32 x .50 PH 21 Multiple 1905617 Nut, KEPS 10-24 22 2 1307000 Switch, Rocker (2 position) 23A 1 or 2 3904800 Front Panel, 2' 23B 1 3904801 Front Panel, 3' 23C 1 3904802 Front Panel, 4' 23D 1 3904803 Front Panel 2' with Digital Monitor Cutout 23E 1 3904804 Front Panel, 3' with Digital Monitor Cutout 23F 1 3904805 Front Panel, 4' with Digital Monitor Cutout 23G 2 4472400 Screw, Thread cut 10-24

HEPA Carbon Carbon Carbon Important: Carbon filters do not provide any particulate protection, but provide odor control. Connecting the Electrical SupplySource 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 operations, blower performance maximum airflow will be reduced by 17%. For the remote blower used for XPert Stations, follow the wiring diagram in Appendix C and wire the blowe

Either monitor is usually provided with the XPert enclosures. Description Order Part #’s Individual Parts Required Guardian Airflow Monitor 115V or 230V 1 ea. 3811500 Airflow Monitor Printed Circuit Board 1 ea. 3910700 Airflow Sensor w/ Connector 2 ea. 1885405 #6-32 x .31" Phillips machine screw to mount Airflow Monitor Circuit Board 2 ea. 1891808 #6-32 x .50" Phillips thread cutting screw to mount Airflow Sensor Guardian Digital 1000 Airflow Monitor 115V 1 ea. 3908500 115V Guardian Digital Moni

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 Industrial 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 is 3" down from the upper sash foil and the second row is 3" up from t

2. The carbon filter becomes saturated. 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 withOdor 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 ve

See Figure 4-1 15. Fluorescent Lamp is located above the work area, out of contact with contaminated air. A safety glass window beneath the lamp distributes the light evenly across the work surface. See Figure 4-1. 16. 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. 17. Filter Clamping Bolt evenly seals the HEPA filter to the frame of the enclosure. See Figure 4-1 and 4-2. 18. Sash

24th Edition, 2001 American Conference of Governmental Industrial Hygienists 1330 Kemper Meadow drive Cincinnati, OH 45240-1634 (513) 742-2020 ASHRAE 110-1995 Method of Testing Performance of Fume Hoods Evaluates fume hood’s containment characteristics • Three part test: Smoke generation, Face velocity profile, Tracer gas release @ 4 liters per minute • Rated As Manufactured (AM), As Installed (AI) and As Used (AU) American Society of Heating, Refrigerating, and Air Conditioning Engineers 1791 T