Installation and Startup
irTis BenchTop 2K, 4K and 6
6 Rev 007, 10/11
© SP Scientific 2011
BenchTop with acrylic manifold.
3. If using a manifold, attach Quickseal valves to each port on the manifold and
ensure that each is in the closed position. For more information, refer to the
Quickseal valve section in Chapter 5.
Note: Quickseal valves are siliconized at the factory. Vacuum grease is not required.
4. If using an acrylic drum manifold, apply a thin coating of vacuum grease to the
tapered surface and place the tapered plug in the top center of the manifold.
Slowly turn the plug 360° clockwise and then 360° counterclockwise. This will
ensure a good seal between the surface of the plug and the manifold.
5. Plug the unit into an appropriate outlet and switch on the circuit breaker
located on the rear of the unit. The control panel display will illuminate.
Vacuum Baffle Plate
The BenchTop 2K and 4K models include a two-position vacuum baffle plate.
Baffle Plate on Chamber Bottom (Position 1).
By raising the baffle plate handle, the plate can be
dropped to the bottom of the chamber. This allows you
to pre-freeze items on the baffle plate. In some cases, it
may be more convenient to remove the baffle plate
completely and freeze items directly on the bottom of
the chamber.
Note: Freeze-drying cannot be performed with the baffle on the chamber bottom
(position1) as the product will remain too cold for water vapor transfer.
Baffle Plate in Raised Position (Position 2).
Lower the baffle plate handle to raise the baffle plate
when freeze-drying products directly on the baffle.
This allows ice to build up on the condenser below
and provides more room for the materials to be dried.
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