Buchi 11069891, Руководство по эксплуатации

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BÜCHI Labortechnik AG Operation | 6
Operation Manual Ultrasonic Package 23/34
u Press the button [Save] .
ð
The output leveling mode is set.
6.2 Finding the optimal spray cone
Stall point
Run power
Low power
—
No droplet production.
High power
—
The liquid is being
ripped apart.
Optimal power
—
The liquid produces
droplets
6.2.1 Finding the optimal spray cone (Power-leveling mode)
Precondition:
R
Instrument is prepared for spraying.
u
Turn the navigation control clockwise until the nozzle starts producing droplets.
u
Turn the navigation control counter clockwise in 0.1 watt steps until the liquid
starts to spit from the tip of the nozzle and / or flooding the tip.
ð
The stall point is found.
u
Turn the navigation control 0.5 to 1.0 watt clockwise.
ð
The optimal spray cone is found.
6.2.2 Finding the optimal spray cone (Load-leveling mode)
Precondition:
R Instrument is prepared for spraying.
u Turn the navigation control clockwise until the nozzle starts producing droplets.
u Turn the navigation control counter clockwise in 1 % steps until the liquid starts to
spit from the tip of the nozzle and / or flooding the tip.
ð The stall point is found.
u Turn the navigation control 2 - 5 % clockwise.
ð The optimal spray cone is found.
6.3 Carrying out a spray drying process in open mode
6.3.1 Tasks before starting spray drying in open mode
Precondition:
R The installation is complete. See Chapter 5.5 "Installing the ultrasonic nozzle in
open mode", page 16
u Prepare 50 mL pure solvent.
u Prepare the sample.
u Place sample and solvent on top of the ultrasonic controller.