Labconco Class I Enclosure Models 3980423 - Manual (Page 27)

Chapter 4: High Performance Features and Safety Precautions
Product Service 1-800-522-7658 23
14. 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
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. The sash is constructed of 1/4 inch tempered safety glass. It pivots
up for loading and cleaning. See Figure 4-1
19. 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.
20. HEPA (High Efficiency Particulate Air) Filter is rated to remove
99.99% of all particles 0.3 micron in size. See Figure 4-2.
21. Lamp Ballast (Not Shown) for the fluorescent lamp is located behind the
control panel.
22. UV (Ultraviolet) Lamp (Not Shown), found only on Purifier Class I
Enclosure, allows the operator to surface disinfect the work area of the
enclosure when it is not in use. The UV will not penetrate the plane of the
sash and lower airfoil (see item 29).
23. Accessory Work Surface (Not Shown) is dished and contoured to fit the
dimensions of the enclosures to contain spills.
24. Accessory Odor-Control Carbon Filters are available for nuisance odor
control. Accessory carbon filters are designed to remove trace amounts of
noxious fumes; capacity is not adequate to remove continuous fume
generation. The carbon filters are supported above the HEPA filter and the
gasket side is down and compressed by the weight of the carbon filter.
Carbon filters are listed in Chapter 7. See Figure 4-2.
25. Accessory Thimble Exhaust Connections are available to duct the
Purifier Class I Enclosure and Purifier HEPA Filtered Enclosure to the
outside. The Thimble Exhaust Connection allows the operator additional
protection from hazardous fumes or vapors and should be used if the
carbon filter capacity is not adequate. Each Thimble Exhaust Connection
includes an epoxy-coated steel exhaust transition adapter designed for 6"
diameter nominal duct. See Figure 3-2 in Chapter 3 and figure B-2 in
appendix B.
26. Upper Diffuser Screen provides protection for the HEPA Filter and (LED)
airflow sensor. See Figure 4-1 and 4-2.