Controls For Pilot-Production Freeze Dryers

Building on the proven success of the Wizard Control System, Wizard 2.0 again exceeds the control power and user-friendliness of any other embedded microprocessor control system. With complete recipe management and full alarming, it provides full process automation for the VirTis freeze dryer line, including AdVantage, Genesis, and Ultra Lyophilizers.

Wizard 2.0 handles single or multiple refrigeration compressor applications and boasts a long schedule of options. Its powerful microprocessor is fast enough to accommodate multiple temperature transducers, while providing instantaneous alarming for out-of-designed-cycle conditions.

Select any of 16 recipes and a new, larger center-stage LCD display precisely plots the profile of the directed shelf temperature, while providing a cycle progress bar graph. The display continually scans all configured transducers. if an alarm occurs, the display indicates the out-of-tolerance condition.

To minimize warming during the condenser and vacuum phases, the Wizard 2.0 control can be configured in a special freeze assist mode. Once configured, the control can keep the product at the obtained freeze temperature until primary drying conditions are achieved.

Two Methods of Control The Wizard 2.0 unique configuration and validatable software allows the freeze-drying cycle to be either shelf-driven or product-driven, depending on which best suits the application.

In the product-driven mode, Wizard 2.0 uses the product temperature average to determine if freeze conditions have been achieved and when to advance from primary to secondary drying. When shelf-driven, the Wizard 2.0 directs drying through a shelf temperature profile. Product temperature probes can be utilized to monitor cycle conditions.

Wizard 2.0 Workstation Extends Capabilities
Users desiring more functions can add on the powerful Wizard Workstation. This option includes an exceptionally user-friendly recipe manager that easily reads and downloads recipes by name; an interactive synoptic screen; and a historical trending package that works with Windows®98, nT or 2000, ME or XP.

Wizard 2.0 Controller Features and Options:

• Full numeric keyboard and large, easy-to-read backlit liquid crystal display allows instant communication with the system.
• Easy-to-use program and store feature stores multiple freeze-drying recipes for easy access.
• Freeze assist mode keeps product at low temperatures during evacuation and condenser cooling to ensure product integrity.
• Full synoptic display gives up-to-the-second status of all major equipment functions.
• Rugged control panel resists dust, oils, and spills.
• Power outage protection includes product recovery routines.
• Full process system alarms provide fast diagnostics.
• Printer output port for optional line printer to produce hard copy of data.
• Wizard 2.0 Controller displays vacuum in a choice of units, millitor, microbar, or pascals.
• Optional computer workstation captures graphs/data and manages recipes.
• Optional validation guide ensures fast path to productivity.