Chapter 4: Using Your Stoppering Tray Dryer
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Original instructions
Creating a New Program
When the “New” button is selected, the following screen will be displayed.
Pressing the program name field will allow you to edit the program name. The
“Add” button will add a new Step to the program and take you through a series of
screens to set the Ramp Rate, Shelf Temp., Time, and Vacuum. Values can be
edited by pressing any of the cells. Pressing the “Delete” button will delete the
selected step from the program. Changes will not be saved until the “Save”
button is pressed. Pressing the “Back” button will return to the Programs screen
without saving changes.
•
Ramp Rate –
This allows the temperature of the system to be increased or
decreased at any desired rate within the capacity of the heating and
cooling systems of the Stoppering Tray Dryer. Without samples on
shelves, the system is capable of cooling at a rate of approximately
0.5°C/min and can heat at approximately 1.3°C/min. The cooling ramp
rate may be slower as the temperature approaches –40°C. Ramp Rate may
be set anywhere from 0.05°C to 1.5°C/min.
•
Shelf Temp.
- May be set anywhere from +40°C to –40°C in 1°C
increments. There is also a Max Cold (MC) setting that will turn off the
heater control and allow the system to reach its lowest possible
temperature (approximately -45°C).
•
Time
– This time represents how long the system will hold at the Shelf
Temp. that has been programmed for each Step. The time can be set from
00:01 to 99:59 (1 min to 99 hrs 59 min). It can also be set to an indefinite
amount of time, which is represented by the infinity symbol (∞).
•
Vacuum
– Vacuum control can be set from 0.000 to 1.500 mbar.
Add
Step
Delete
Step
Lock or unlock
program editing
