Labconco Protector 50600 User Manual page 12

Chapter 2: Prerequisites
Support, Vibration and Preventive Requirements
In the preparation of a glove box site, please consider the following:

A bench or stand that is rigidly mounted to the floor or fixed to the wall, but
not both, may be appropriate. 35" to 40" (889mm to 1,016mm) is typical for
standing height (Labconco adjustable height base stands offered in Chapter 7
vary from 33" to 40" or 838mm to 1,016mm).

The corners of a building typically have less vibration than the center, which
promotes analytical balance stability.

The bench typically should not contain any vibration-producing equipment,
such as shakers or pumps.

A marble slab with dampening pads placed within the enclosure is an effective
low cost means of controlling vibration for analytical balance operation (see
Balance Vibration Isolator in Chapter 7: Accessorizing Your Glove Box).
Location Requirements
The Protector Glove Boxes have been designed to rest on a typical 29"-30"
(737mm-762mm) deep work surface. The height should be 35"-40" for standing
position. Avoid placing the glove box in high traffic areas where walking might
disrupt the operator or experimentation.
Oil and Exhaust Requirements for the Pressure
Relief Bubbler
To prevent over or under pressurization of the main glove box chamber and prevent
glass breakage, the Protector Controlled Atmosphere Glove Box includes a pressure
relief bubbler that activates at pressures and vacuums above +5" water gauge or
below -5" water gauge. The glove box ships with an oil container with a specific
gravity of 0.87 and the bubbler must be filled with oil to a level of 6" (152mm). See
Chapter 3 for instructions for adding oil.
WARNING: The overpressurization of air at positive pressure
!
would allow any contaminants inside the glove box to vent into the
room. To control this venting into the laboratory, Labconco
recommends exhausting the 3/4" diameter pipe from the pressure
relief bubbler to the outside. If needed, 3/4" I.D. neoprene hose
circulation kits can be ordered from Chapter 7. If needed,
purchase the 5441403 HEPA Filter Exhaust Kit from Chapter 7 to
exhaust the bubbler through HEPA filtration and into the room.
8
Product Service 1-800-522-7658