ALPHA 2-4 LD plus freeze dryer, ice capacity 4 kg, ice condenser temperature -90°C, process B, drying in 12 round flasks or on 2 unheated shelves with stoppering device Ø = 250 mm.
Universal lab system for routine applications, low ice condenser temperature for freezing samples that contain solvents (e.g. alcohol); new, user-friendly "Lyo Display LD" controller:

• LC display shows key process data (ice condenser temperature, vacuum, process time and section time)
• Comfortable and self-explaining menu guidance in German, English or French language
• Vacuum control for optimization/reduction of process times (electromagnetic pressure control valve available as option)
• Conversion of product temperature and vacuum according to the vapour pressure curve above ice
• RS-232 interface (option)

Total ice capacity 4 kg, ice condenser temperature -90°C, includes 12 rubber valves for flasks and 2 unheated shelves with stoppering device for drying in vials, GMP/GLP compliant design, includes vacuum pump (suction capacity 5 m3/h), 230 V supply voltage, dimensions (width×depth×height) 390 × 555 × 415 mm, weight approx. 65 kg; modular design, wide range of accessories available for substantial capacity expansion.

1) 12 required.