11
10)
OPERATION
Select the product you wish to spray dry but always start and end the process by using clean or
distilled water.
Place the pump tube in the water.
Switch on the mains switch on the SD-06 and then switch on the fan, compressor and the heater
using the appropriate screen and green ‘START’ button.
Note: The heater will not operate unless the blower is running. There is a delay on start up before
the heater switches on.
Using the screen on FAN SETTINGS increase to maximum (50).
When the airflow is at maximum setting, use the SET TEMP screen to set the temperature required.
The actual inlet temperature and outlet temperature is displayed at all times on the set temp screen.
A fixed over temperature protection cut out is fitted and will actuate at approximately 300°C (if
actuated allow to cool down and re-start), allow inlet temperature to stabilise before setting pump
and deblocker and starting.
Using the 0.5mm jet maximum backpressure is approximately 2.8 bar and this reduces when larger
diameter jets are used.
THEN SET THE PUMP TO A SLOW RATE E.G. 5 OR 10.
Allow a small amount of water to be pumped into the silicone tube to clean the tube and the jet and
then transfer the tube to the sample. When the sample reaches the jet the Spray Drying Operation
should commence and dried powder should be observed spiralling down the cyclone into the
collection bottle.
Once spray drying has commenced varying the parameters of temperature, airflow and pump
speed, may be tried to improve the process.
