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17
4. Operating procedures
Operating method
(5) Turn the N2 IN switch ON. At the same time, open the left
side door and set the flow meter for introducing N
2
(larger
flow meter) to 40 - 50L/min.
When oxygen concentration drops to 8
%
, the compressor
integrated in GAS410 will activate. At the same time,
supply of N
2
gas from the pulse jet device is stopped, the
solenoid valve for automatic control of N
2
gas is opened,
and supply N
2
gas is started. Set spray pressure to
0.05-0.1MPa.
When oxygen concentration reaches
3.4
%
, introduction of N2 gas control solenoid valve
close and the screen shifts to the next screen. And
after oxygen concentration become over 3.6%,N2 gas
control valve is open. Then supply N2 gas again.
N2 gas concentration control by this solenoid
valve(Open/Close)
Set the liquid tube as shown in the left diagram. Push the
pump rod CCW to open the pump head, put the liquid
sending tube in it, and then push the rod CW to have the
tube stuck. In terms of liquid specimen, set the solvent
only.
If you want to operate the liquid sending pump, push
I
NTER LOCK
→
PUMP FWD
(
forward) or
PUMP
REV
(reverse).
To finish operation of the pump, press INTER LOCK to
return to the previous screen.
※
When specimen is not sprayed any more, it is
suspected that the orifice of the spray nozzle is
clogged, which can be cleared by pressing the plunger
at the upper part of the nozzle (Refer to " “Exploded
view of the spray nozzle” in the instruction manual of
ADL311S
・
GB210A). The needle pushes out the clog
in the orifice.
in operation
BLOWER
INTER
LOCK
N
outlet
B
R
N2 IN
in operation
BLOWER
N2 IN
INTER
LOCK
Open
N
outlet
B
R
Plunger