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ドライヤー DYNAVAC NovaDryer-DHF400のPDF クイック・インストレーション＆オペレーション・マニュアルをオンラインで閲覧またはダウンロードできます。DYNAVAC NovaDryer-DHF400 17 ページ。 Vacuum freeze dryer

8‐1. Normal Status: The freeze dryer is working in good condition.

8‐2. Please Remove Materials:

Materials have finished freeze drying and can be removed from the freeze dryer.

[Caution]Before removing materials, please confirm materials are in stable status first:

Go to Main Menu, press "Temp.Control" to check if vacuum record in the past one hour has been keeping stable.

When vacuum record in the past one hour is stable, stop the freeze dryer, open the water draining valve, remove materials

from the chamber, and run "Defrost" in "OPERATION" menu.

*Before running the next freeze drying cycle, check and make sure there are no frost, ice or water in the chamber.

8‐3. Vacuum Alarm:

This alarm is caused some reasons related to the material itself and air leakage. Refer to point 9 for solutions.

9. How to Eliminate Vacuum Alarm

When "Vacuum Alarm" keeps flashing on the main menu, please try the

950

2 solutions given below:

9‐1. If vacuum degree on the main menu is between 900‐1000 (Pa)(Pic‐9)

when "Vacuum Alarm" keeps flashing on the Main Menu.

☞

It means critical leakage which causes failure of vacuum pumping.

Step 1. Stop the freeze dryer.

Step 2. Check and make sure the door is closed tightly, and there is

no leakage with all the vacuum tubes outside/inside the freeze dryer

and connectors.

Pic‐9

*If necessary, some parts need to be replaced to fix leakage.

Step 3. Re‐start the freeze dryer

Step 4. Go to Main Menu, Press "FORMULA". Modify "Pre‐freeze Time" from 600(minutes) into 1(minute).

*This is because pre‐freeze stage has completed before re‐start and it needs to skip this stage after re‐start. So the

pre‐freeze stage can run only for 1 minute then go to vacuum pumping stage quickly.

600

Step 5.Go to Main Menu, press "OPERATION". On OPERATION menu, press "Stop Vacu. Alarm" to eliminate vacuum alarm.

Step 6. On OPERATION menu, press "Start" to run the freeze dryer in good condition without vacuum alarm.

The Problem is solved.