DYNAVAC NovaDryer-DHF400 Руководство по быстрой установке и эксплуатации - Страница 11

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Part 4. System Operation

1.After power‐on The system enters into Main Menu (Monitoring Interface) with parameters including time the freeze

dryer has run from start, real‐time vacuum degree (1000Pa is shown if higher than 1000Pa) , temperature of shelves,

cold trap (working chamber) and materials, current section at current stage, and current working stage.

2.Click "FORMULA" for recipe management. Set parameters according to materials to be freeze dried.

i. Set Pre‐freezing time (600 minutes is recommended).

ii.Set cold trap temperature and time (Timing starts when cold trap reaches temperature set by the user). ‐30℃ and 3

minutes are recommended.

iii.Set pre‐vacuum pumping value and time (Timing starts when vacuum reaches value set by the user). 30Pa and 30

minutes are recommended. If vacuum does not reach the set value within 30 minutes, the system will display vacuum

abnormal alarm. In such situation, check door, drain valve and vacuum pump connectors.

iv. Set vacuum limit for drying stage (If vacuum in drying stage exceeds this limit, heating is stopped).

After finishing above setting, you will have 2 control modes(Vacuum Control and Program Control) to choose.

Program Control Mode is recommended because this Mode can be used for all the materials while Vacuum Control

Mode is not suggested for some materials such as milk and flowers.

Please refer to details on the next page.