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4. Auto Operation
1)Press Refrigerator Run/Stop switch on control panel
while Auto operation lamp is blinking.
Refrigerator Switch Lamp is lighted, and the
refrigerator is started (when 5 minutes passed since
turning on the Power switch.)
2) The vacuum pump is started when trap temperature
reaches
–30
°
C for FDU-1110, and
–40
°
C for FDU
2100. Further, when vacuum value decreased to
533Pa or less, indication of “Atmo” on vacuum display
changes into measured value.
3) When vacuum value reaches 20 Pa or less for
FDU-1110, and 10 Pa or less for FDU-2110,
Freeze Drying Ready Lamp starts blinking for
notifying that it is possible to attach the specimen
container to the device.
4) Attach the freeze-dried specimen in container to the
adapter. Turn the vacuum cock from VENT to VAC.
The container and the trap are connected at this point.
Do not attach all of the containers at once. Attach
containers one by one, and check the vacuum value
for respective container.(20 Pa for FDU-1000 and
10 Pa for FDU-2110) And 30Pa at maximum operation
is recommended. When vacuum level is less than 30Pa,
freeze drying ready lamp starts blinking. Below is the
number of container possible to attach at once.
Room Temp.
Room Temp.
Room Temp.
20
℃
30
℃
35
℃
FDU-2110 8 6 4
FDU-1110 6
～
7
5
4
* If specimen is melted, pre-freeze it again.
And then, reattach it to the adapter.
*As drying process proceeds, frost formation
on the surface of the specimen container begins
to melt. Therefore, adjust the tilt of the container
in advance of the process so that the rubber
dewdrop tray can receive dripping dewdrops
appropriately.
.
５
) After attaching the container, Freeze Drying
Ready Lamp is lighted where trap temperature
and vacuum value are as belows:
FDU-1110: -30
°
C or less, and 30 Pa or less
FDU-2110: -50
°
C or less, and 30 Pa or less
While these conditions are kept, it is possible to
attach the containers serially.
FDU-1110
* Freeze Drying Ready Lamp goes off where trap
temperature exceeds -30
°
C, and vacuum value
exceeds 25 Pa.
The lamp is not lighted until trap temperature and
vacuum value reach -30
°
C and 25 Pa again
FDU-2110
* Freeze Drying Ready lamp goes off where trap
temperature exceeds -50
°
C, and vacuum value
exceeds 15 Pa.
The lamp is not lighted until trap temperature and
vacuum value reach -30
°
C and 25 Pa again
.
*
Press Auto/Manual Select Switch to switchover
automatic/manual operation. Each time
the switch is pressed, Auto (Auto Operation Lamp is
lighted)/Manual operation (the lamp not lighted) is
switched over.
*Refrigerator Protection Timer
Regardless of Auto/Manual operation, the refrigerator
is not started for 5 minutes since the power switch is
turned on.
Also, once the refrigerator is stopped, the refrigerator
cannot be started for 5 minutes
* The buzzer is sounded staccato for approx. 5 seconds
since Freeze Drying Ready lamp is lighted.
Attach the container to
the vacuum cock.
And turn the cock to
vacuum the container.
Connected to the trap
VENT
VAC.
▽
△
VENT
VAC.
▽
△
▽
▽
VAC.
Keep the maximum volume of dehumidification
To minimize the water into the vacuum pump, operate
Keeping the volume of dehumidification of specifications.
The volume of the dehumidification of FDU- 1100
4L/time (about 4.5cm far from the trap wall), of FDU-
2110 3L/time (about 4.5cm far from the trap wall)
＊
Ice accretion shape is different between FDU-1110
and
FDU-2110.
Control the vacuum level in operation
30Pa at max is recommended in operation.
Excessive low vacuum level operation causes to get
worse quality result and to drop oil quality and short life
Attach the sample containers not at once, but one by
one at regular intervals while confirming .
3 days operation at most in continuous operation
Long time operation under ice-coating causes to insert
water to the vacuum pump. The continuous operation
should be within 3 days. In case of over 3 days
operation, melt the ice first.
