17
4. Operation procedures
Operation Method-Spraying Operation
When pressing the NEEDLE
KNOCKER button, the needle in front
of the spray nozzle will appear on the
mesh automatically. If the front side of
the spray nozzle is clogged, it will
affect the spraying. So please use
this function. Press on the automatic
operation, the problem will be solved.
(9) After the inlet and outlet temperature has reached
the expected temperature, please set the spraying
pressure. Switch the pump FWD to ON, and then
infuse distilled water
E. g. When the outlet temperature has reached around
90
°
C, set the spraying pressure to 0.1MPa. the
infusion speed should be adjusted so that the
inlet temperature is lower than 85
°
C
During operation, in case there are powder attached
on the nozzle head and the spraying direction has
changed, please turn on NOZZLE BLOW switch to
blow away the attachments with compressed air.
(10) Readjust the drying air volume, spraying pressure,
and solvent delivery speed to set the inlet and outlet
temperature to be stabled at the expected
temperature.
E. g. Adjust the infuse speed so that the outlet
temperature is lowthan85
When the inlet temperature is the same, all setting has
the following influence on the outlet temperature.
Sample infuse volume
→
small: Outlet Temp.
→
High
Draying Chamber air volume
→
high:
〃
→
high
Sample Concentration (external factors)
→
high
〃
→
high
In addition, the droplet diameter variation which gushed
from the nozzle is as follows:
Sample infuse volume
→
big: Diameter of Spraying
droplet diameter
→
large
Spaying air pressure
→
high:
〃
→
small
Sample concentration
、
viscosity (external factor)
→
high:
〃
→
large
・
If the spraying pressure is increased, the droplets
will
particulate.
・
When the distilled water has changed into actual
samples, the outlet temperature will be somewhat
higher as there are non-evaporated parts (solid
parts).
～
Little Tips
～
Set Spray Pressure & Flow
Set Spray Pressure & Flow
Set Spray Pressure & Flow