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DAIHAN Scientific, Precise Vacuum Ovens
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5. Make the inside of Oven in a vacuum state by operating the vacuum pump after connecting a
vacuum hose to the Vacuum Nozzle.
6.
Check the vacuum state while confirming the pressure gauge after operating the vacuum pump.
At this time, the rate making progress to the vacuum state may be varied according to the
capacity of the vacuum pump.
7.
Once the vacuum setup is complete, close the valve by turning lengthways the Vacuum Valve.
And stop the operation of the pump. At this time, first, user must close the Valve and stop the
operation of the pump.
8.
If user releases the vacuum state after that the experiment is completed, open the Vent Valve
by turning it counterclockwise. The quantity of inflow air at the time of the vacuum release can
be adjusted according to the rotating amount of the handle.
Precautions
-
If the samples are solid, because any substances can come out along with air when the inside
of the chamber is progressed in the vacuum state, user must operate the vacuum pump while
slowly adjusting the vacuum level using the needle of the vacuum gauge after once blocking
the vacuum line by the Septa.
-
If the samples are the liquid with high viscosity, because it can become a solid while the solvent
is evaporated, such samples should be used in the vacuum pump after removing the solvent.
-
The flask used in the vacuum state should be safely used after being fixed using a joint clip and
hanging in the Clamp.
* RS232C Connector
-
Port for cable connection to PC. Monitoring and Controlling with PC by connecting
RS232C cable.
<Fig.3.2.8> Precise Vacuum Oven " ThermoStable
TM
OV " RS232C Connect
