Table Of Contents - Christ Alpha 3-4 LSCbasic Operating Manual

1 General information ............................................................................................................. 9
1.1 Importance of the operating manual .................................................................................. 9
1.2 Intended use ..................................................................................................................... 9
1.3 Warranty and liability....................................................................................................... 10
1.4 Copyright ........................................................................................................................ 11
1.5 Explanation of symbols ................................................................................................... 11
1.6 Standards and regulations .............................................................................................. 11
1.7 Scope of supply .............................................................................................................. 11
2 Layout and mode of operation .......................................................................................... 16
2.1 Layout of the freeze-dryer ............................................................................................... 16
2.1.1 Functional and operating elements ............................................................................ 16
2.1.2 Name plate ................................................................................................................ 18
2.2 Mode of operation ........................................................................................................... 19
2.2.1 General information on freeze-drying ......................................................................... 19
2.2.2 Freeze-drying process ............................................................................................... 21
2.2.2.1 Preparation ........................................................................................................ 21
2.2.2.2 Freezing ............................................................................................................. 22
2.2.2.3 Main drying ........................................................................................................ 22
2.2.2.4 Final drying ........................................................................................................ 23
2.2.2.5 End of drying and aeration ................................................................................. 23
2.2.2.6 Defrosting .......................................................................................................... 23
3 Safety .................................................................................................................................. 24
3.1 Marking of the unit .......................................................................................................... 24
3.2 Explanation of the symbols and notes ............................................................................. 25
3.3 Responsibility of the operator .......................................................................................... 26
3.4 Requirements concerning the personnel ......................................................................... 28
3.5 Informal safety notes....................................................................................................... 29
3.6 Safety notes concerning the transport, set-up and connection and initial start-up of the
freeze-dryer .................................................................................................................... 29
3.6.1 General hazards ........................................................................................................ 29
3.6.2 Hazards caused by improper transport ...................................................................... 29
3.6.3 Hazards caused by improper set-up .......................................................................... 30
3.6.4 Hazards caused by improper connection ................................................................... 30
3.7 Safety notes concerning the operation ............................................................................ 31
3.7.1 Hazards caused by electricity .................................................................................... 31
3.7.2 Hazards caused by the refrigeration system (natural, flammable refrigerants) ........... 31
3.7.3 Hazards caused by harmful products ......................................................................... 32
3.7.4 Hazards caused by acids in the products ................................................................... 32
3.7.5 Hazards caused by contaminated condensate (defrosting water) .............................. 32
3.7.6 Oil-sealed vacuum pump: hazards caused by contaminated vacuum pump exhaust
gases ......................................................................................................................... 33
3.7.7 Oil-sealed vacuum pump: hazards caused by hot and contaminated vacuum pump oil
.................................................................................................................................. 33
3.7.8 Dry-running vacuum pump: hazards caused by contaminated exhaust air ................. 34
Version 11/2018, Rev. 1.9 of 01/12/2021 • sb
Translation of the original operating manuel
Freeze-dryer Alpha 3-4 LSCbasic

Table of contents

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