Labconco Protector 50600 User Manual page 17

Adding the Oil and Connecting the Pressure Relief
Bubbler to Outside Exhaust
The glove box ships with a separate oil container with a specific gravity of 0.87.
The pressure relief bubbler prevents over or under pressurization of the glove box
main chamber and activates at pressures and vacuums above +5" water gauge
(1245 Pa) or below -5" water gauge (-1245 Pa) to prevent glass breakage and glove
box liner damage. See Figure 3-1 as the bubbler must be filled with oil to a level
of 6" (152 mm) measured vertically from the bottom of the stainless steel bubbler.
Add the oil through the open exhaust port using a 3/4" I.D. hose (#5443500) and
funnel.
As stated in Chapter 2, the main chamber pressure relief bubbler can be exhausted
back into the room or exhausted to the outside, if required. Figure 3-1 shows the
location of the pressure relief bubbler exhaust. After consulting with your Safety
Officer and reading the prerequisites in Chapter 2, connect the exhaust the bubbler
to the outside if your application requires it. If needed, the 3/4" I.D. neoprene
circulation hose kit can be used and ordered from Chapter 7 to exhaust the bubbler
to the outside. Furthermore, should your application require HEPA filtered
exhaust to the room, purchase and install the 5441403 HEPA Filter Exhaust Kit
from Chapter 7.
!
WARNING: The weight of the pressure relief exhaust
ductwork system must be supported independently of the glove
box superstructure or damage may occur.
The exhaust system should be installed by a qualified HVAC
contractor.
Product Service 1-800-522-7658
Chapter 3: Getting Started
13