The FreeZone Plus 2.5 Liter Cascade Freeze Dry Systems have console cabinets with room for a vacuum pump inside. They reach -84 C for processing samples with low eutectic points including ones containing acetonitrile. The LCD displays vacuum in mBar, Pa or Torr; temperature in C or F; alarm messages and service information such as hours of refrigeration and vacuum pump operation. The brushed stainless steel front panel with blue accents provides an updated, sleek appearance. Other exclusive features include a patented moisture sensor that protects the vacuum pump by preventing start up when moisture is detected in the collector chamber area and vacuum break valve that protects the system from oil backstreaming.
Features
- Upright stainless steel collector coil capable of removing 1.8 liters of water in 24 hours and holding 2.5 liters of ice before defrosting
- Dual CFC- and HCFC-free refrigeration systems, one 1/4 hp and one 1/3 hp, to cool collector to -84° C (-119° F)
- Compact cabinet with 3" diameter casters and interior space to accommodate a rotary vane vacuum pump
- Corrosion-resistant glacier white epoxy-coated steel and brushed stainless steel exterior with blue accents
- LCD that displays system operating parameters, set up parameters and alarm messages. It may be user-configured to display vacuum in mBar, Pa or Torr and temperature in ° F or ° C. It also displays total number of hours of refrigeration operation and since the refrigeration was serviced and the total number of hours of vacuum pump operation and since the vacuum pump was serviced
- Red alarm light that flashes and beeper that sounds to indicate that an abnormal system event has occurred, including: power failure, improper line voltage supply, collector temperature rise above -40° C, service vacuum pump (after 1000 hours of vacuum use), and moisture in collector. Pressing the Menu Switch displays the alarm message on the LCD
- LED vacuum and temperature "waves" for at-a-glance display of relative system vacuum and collector temperature
- Patented moisture sensor that prevents refrigeration or vacuum start up when moisture is detected in the collector chamber area.
- Vacuum control valve that maintains setpoint vacuum level
- Vacuum break valve that bleeds air into the system when power to the freeze dryer or vacuum pump is shut off
- Rear-mounted RS-232 port to transmit data to a user-supplied computer
- Automatic start-up switch for collector cool down and vacuum pull down with manual override switches
- Side-mounted, retractable, 9" collector drain
- Lid with 3" diameter port for connection of drying accessories
- Side-mounted power switch and rear-mounted electrical receptacle (for vacuum pump connection)
- 3/4" OD vacuum connection, three feet of 3/4" ID vacuum hose and two clamps
- ETL Listing (60 Hz models)