Includes purge valve with switch for isolating the vacuum pump from the freeze dry system.
FreeZone 18 Liter Console Freeze Dry System is designed for large aqueous sample loads. This model is not for use with samples containing acetonitrle. Removes a maximum of 10 liters of water in 24 hours.* Includes brushed stainless steel and powder-coated steel exterior; stainless steel collector coil and chamber; LCD that displays system operating parameters, set-up parameters and alarm messages (choice of temperature in °C and ° F, choice of vacuum in mBar, Pa and Torr); 1 1/2 hp CFC-free refrigeration system; red alarm light; LED vacuum and temperature wave graphs; patented moisture sensor; vacuum control/break valve; rear-mounted RS-232 port; automatic start-up switch for collector cool-down and vacuum pull-down with manual override switches; hot gas defrost and switch; retractable collector drain line; 3" diameter port for connection of drying accessory; power switch; rear-mounted electrical receptacle for vacuum pump connection (pump not included); 3/4" OD vacuum connection; 3/4" ID vacuum hose; and two clamps.
* Freeze drying rate will be lower for samples other than shell-frozen plain water. For optimum performance, room temperature should be 21° C (70° F) or colder.