Christ ALPHA 1-2 LDplus Specifiche

edition 12.2005-english Operating Manual Freeze Dryer ALPHA 1-2 LDplus Best.-Nr. 101521

1.3. Technical Specifications of Freeze Dryer ALPHA 1-2 LDplus ALPHA 1-2 LDplusPerformance data Ice condenser capacity max. 2.5kg Ice conde

ALPHA 1-2 LDplus Noise emissions according to DIN 45635: 49 dB(A) Electromagnetic compatibility according to EN 55011: class B Filling quanti

ALPHA 1-2 LDplus Drain valve: Hose nozzle DN10 (outside diameter 12mm) Aeration valve: Hose nozzle DN4 (outside diameter 8mm) 1) All machine spec

1.4. Standards and Regulations Please refer to the enclosed EU Declaration of Conformity. 1.5. Safety Instructions 1.5.1. CAUTION! Disconnect Main

the ice condenser chamber as the limbs may become frozen to the surface. The limb can only be detached from the surface by applying heat. Liquid shou

1.6. Prohibited Freeze Drying Processes 1. Operation of freeze dryer when not installed correctly. 2. Operation of freeze dryer without panels. 3.

2. General Information on Freeze Drying 2.1. General Information on Freeze Drying Freeze drying is the most gentle process for drying products. It i

b) ice condenser with temperatures from -50°C to -105°C (depending on type of unit) to remove the water vapour from the chamber (= vapo

Conversion table "Vapour pressure above ice" (sublimation curve) 1 mbar = 102 Pa = 1hPa °C mbar°C mbar°C mbar °C mbar0 6.110 -20

2.2. Preparation In case the unit is equipped with a pressure control valve the vacuum pump should be warmed up. The operation temperature should be

OPERATING MANUAL ALPHA 1- 2 LDplus Order Number: Serial Number: In case of inquiries please state the above numbers. Operating Manual

Freezing inside the unit is not necessary if the product is pre-frozen or stored in e. g. a deep-freeze. In this case, especially when freeze drying

Special precautions are necessary when using azides because a dangerous explosive develops in combination with copper or non-ferrous metals! It is a

In general, operation with closed gas ballast valve is not necessary. The recommended vacuum pump reaches with open gas ballast valve a final pressur

The drying time depends heavily on the drying vacuum. The nearer the vacuum is to the solidification point in accordance with the vapour pressure cur

2.5. Final Drying The final pressure in the drying chamber depends on the ice condenser temperature according to the vapour pressure curve above ice

2.7. Defrosting Defrosting of the ice condenser is carried out at room temperature or with warm water. At a maximum the ice condenser chamber may be

3. Description of the Freeze Drying Processes 3.1. Separate Freezing and Drying Outside the Ice Condenser Chamber (Process B) on Shelves It is also

manual stop valve. Without such a valve the vacuum pump must not be warmed up. The rack is set onto the base plate. With small samples it is recommen

Then the pressure plate is fastened with the threaded pin in such a way that it will rest on or slightly above the rubber stopper. When using two or

To start the drying process, the main drying process has to be activated in the control system. The pressure control valve opens and the main drying

Preface Dear customer Congratulations on purchasing a CHRIST freeze dryer. The freeze dryer ALPHA1-2 LDPlus is equipped with a lot of user-friendly o

The ampoule is then connected to the hose and the hose clamp is removed. Thus the partial pressure in the ampoule is suddenly decreased and a partial

4. Installation and Commissioning of the Unit 4.1. Site of Installation WARNING! Papers, cloths or similar items must not be put behind the unit as

The following connections are required at the site: 4.2. Mains Electricity The voltage given on the name plate must correspond to the local supply vo

4.7. Vacuum Pump Exhaust During the main drying phase the separate vacuum pump must be operated with open gas ballast valve. The oil mist which is p

4.8.1. Functional Components and Control Elements Aeration and drain valve Ice condenser Ice condenser chamber Mains switch LDplus control sy

4.8.2. Connection of Vacuum Pump and Installation of Accessory Components 4.8.2.1 Connection diagram ALPHA 1-2 LDplus 1 2 3 4 1 ALPHA 1-2 LDp

Instructions for the connection with centring rings and clamping flanges Small flange connections which are not mounted properly between the aggregat

In case a pressure control valve is available it has to be mounted between the freeze drying unit and the vacuum pump. Then it has to be plugged int

Diagram of the accessories The other accessories (e.g. drying chamber, shelves, and connections for round bottom flasks) will be completed according

Contents 1. General Information 1 1.1. Introduction...1 1.2.

Possible accessories for the ALPHA 1-2 LDplus: Drying chamber Ø300with 12 connectionsRubber valveDrying chamber Ø240 Drip trayBase plateALPHA 1-2

4.8.3. Switching-on Press the mains switch on the right side of the unit to switch the unit on. The initialization of the LDplus control system start

5. LDplus Control System 5.1. Introduction LDplus (Lyo Display Plus) stands for a convenient user interface for controlling of freeze drying process.

5.3. Brief Guide - Handling The LDplus control system is operated via four centrally located keys on the touch-sensitive control panel. The follow

5.4. Visual Components of the LDplus Control System The LC display is divided into the three following areas: 1. Main window 2. Status bar 3. Softk

5.4.2.2 Active phase • Freezing The ice condenser is cooled. • WarmUp VP The ice condenser is cooled and the vacuum pump is activated with the pres

5.5. Values Window The values window is displayed after the initialisation of the LDplus control system. It is divided into two areas, the left-hand

5.6. Mode The mode selection can be activated by pressing the left-hand softkey Mode in the active values window. The function Mode comprises the

5.6.3. Timer If the timer is active for the phase (timer set value >= 1 minute), the system inquires before the selected time is over as to whet

Select the set value using the focus. Press the right-hand softkey Edit to start the editing mode. The focus is displayed in an inverted manner. Yo

4.8.2. Connection of Vacuum Pump and Installation of Accessory Components...

5.7.2. Special functions The special functions menu is used to operate special accessories (defrosting device and electrical lifting device) of the

5.7.4.2 Language The LDplus control system can be used in the German, English or French language. 5.7.4.3 Settings The Settings menu is used to cus

5.7.5. Tutorial Starts the tutorial of the LDplus control system. 5.8. Process and Equipment Information System A detailed list of error messages c

5.8.1. Information status Every information shown in the process & equipment information window receives a certain status. • Information prese

5.9.2. Electrical lifting device (option) To move the drying chamber with the help of the electrical lifting device, open the menu Menu -> Specia

6. Error Correction 6.1. Power Failure The control system continues the process after a power failure. The preselected conditions remain saved during

To eliminate this fault we recommend that the unit is evacuated and vented by means of the drain valve so that any residue (e.g. collected parts) is

6.3. Unit does not function If the display does not work after operating the mains switch, the following must be checked: Is the mains switch plugge

6.5. Process and Equipment Information System 6.5.1. Error Messages Vacuum of 6.11 mbar has not been reached This error occurs in case the pressur

7.7.5. Checks by Operator...60 8. Options 61 8.1. Process Control System LPC

than +65°C. Temperature sensor “ice condenser” defective This error occurs in case the temperature sensor is not connected properly or in case it is

7. Maintenance 7.1. Ice Condenser Chamber Before each start-up ensure that all water residue has been removed from the ice condenser chamber. If nec

7.3. Adjustment and Maintenance of the Vacuum Sensor VSP62 7.3.1. Maintenance of the Vacuum Sensor: The tungsten wire has a limited service life b

(see below). We recommend a warm-up phase of at least 5 minutes before the adjustment. Buttons with protective caps for adjusting the sensor7.3.2.2

7.5. Vacuum Pump For maintenance of the vacuum pump please refer to the separate operating manual. Additionally, we would like to emphasise the follo

7.7.2. Cleaning of Accessories When looking after accessories special safety measures must be considered as these are measures to ensure operational

Please consult us if in doubt. If dangerous materials are used, the freeze dryer and the accessories must be disinfected. 7.7.5. Checks by Operator T

8. Options 8.1. Process Control System LPC-32, Software Upon request. See separate operating manual. 8.2. Process Control System LPC-32, Software w

9. Enclosures Declaration of conformity 1-2 LDplus Operating manual of the vacuum pump (only in case of delivery) Operating manual of the exhaust fi

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1. General Information 1.1. Introduction What is freeze drying (Lyophilisation)? Freeze drying means: Extraction of water from frozen material. The d

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10. Special functions Operating Manual Freeze Dryer ALPHA 1-2 LDplus Special functions • 79

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1.2. Applications The freeze dryer ALPHA 1-2 LDplus is a high-performance universal laboratory and pre-production unit for freeze drying of solid or