-4-
Set Press
Time
Auto Atop
Time
Mark Press
Stop Temp
Vapor
temperature
Set Temp
Pressure
Time
Leak
Menu
Run
Stop
Power
Mode
MANUAL
Standby
00:00:00
Display
1013
hPa
Set Press
hPa
100
Leak
Menu
Run
Stop
Power
Leak
Menu
Run
Stop
Power
Mode
AUTO
Standby
00:00:00
Display
1013
hPa
Leak
Menu
Run
Stop
Power
Mark Press
----
hPa
Pressure
MANUAL (fixed-value control) mode
After operation is started, fixed-value control will start at the fixed
pressure (Set Press).
The settable range for fixed pressure (Set Press) is between VAC
(continuous decompression) and 1013hPa (760mmHg).
You can change the fixed pressure any time irrespective of whether
the present mode is standby, decompressing or fixed-value control.
You can stop the unit automatically based on the operation time by
setting an operation stop condition (Auto Stop).
You can stop operation of the unit automatically based on the margin
of temperature increase (Stop Temp) from the vapor temperature by
using a vapor temperature sensor (optional).
AUTO (Automatic Control) mode
There are two modes
: AUTO
mode and
AUTO-2
mode.
AUTO
mode is an automatic operation mode that automatically
controls pressure to prevent sudden boiling and automatically
determines a pressure that enables a favorable collection rate and
a condensation time at the same time (Mark Press) in order to
perform the fixed-value control.
When an inverter pump is used, the Mark Press value will be
adjusted automatically as necessary after fixed-value control
has started.
You can stop the unit automatically based on the operation time
by setting an operation stop condition (Auto Stop).
AUTO-2
mode uses a vapor temperature sensor (optional). In
addition to the functions of the AUTO mode, the following
functions are available:
・
Fixed-value control at the pressure (Mark Press) determined
automatically appropriately to the vapor temperature (Set
Temp).
・
Automatic stop based on the margin of temperature increase
(Stop Temp) from the vapor temperature (Set Temp).
・
You can use mixed solvent by using an adjusted temperature
(Adjust Temp) and the count of adjustment
※
The unit has been set to be an optimal state at the room
temperature of 25
℃
±
3
℃
and the cooling water
temperature of 5 to 10
℃
at the conditions below:
Solvent with low boiling point: Bath temperature 40
℃
Solvent with high boiling point: Bath temperature 60
℃
※
Sudden boiling might be suppressed depending on the
sample.
In such a case, take following measures in
consideration: reducing samples, lowering the number
of sample flasks, or lowering the bath temperature.
2-4 Pressure control mode
There are four types of functions below in the control mode.
