22
◆ Turn on the power of cooling circulator or solvent recovery instrument,
and start condensation system;
◆
Make sure that the condensate collection bottle is installed;
Note: The condensing system should be turned on 10 minutes in advance, and
temperature of condensing system should be more than 35℃ lower than the water
bath temperature during operation, so that the solvent vapor can be well condensed
and collected;
◆ Turn on host power, entering main menu;
◆ Set target temperature according to analysis method, and set target
vacuum degree value according to boiling point and heating temperature of
solvent;
◆ Set oscillation speed between 150 and 250;
◆
Set time according to experience.
◆ Press
, then press upper cover handle down, sample start to
concentrate.
Press
down
Press
down
Fig. 19 Press the upper cover diagram
Note: After start button is activated, handle of the upper cover must be pressed down
quickly to ensure that electromagnets at the left and right ends of the upper cover are
in the suction state, otherwise the system vacuum will be abnormal;
