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MultiFors

The new X-Controller system is microprocessor based and controls up to 16 parameters from one panel linking up to 3 units (6 vessels). Additional analogue input and output capability is standard with a maximum of four inputs and five outputs per vessel. Reagent addition and feeding use analogue pumps for flexibility and accuracy. When combined with IRIS software, the system can provide for a wide range of control strategies (event and/or time-based) plus accommodation of additional equipment ( balance, mass spectrometer, etc.).

Key applications for Multifors include continuous culture, media and process development, strain selection and improvement, toxicity testing and scale-down studies.

	Small volume volumes of 1 L or less for economical multiple, parallel studies
	Built - up in units of 2 – 6 vessels in pairs providing statistically valid data
	Groups can be split or expanded by addition of more operating panels
	Single operating panel for up to six vessels, each with completely independent control yet all units can be displayed on a single overview screen
	Analogue inputs/outputs for external sensors, pumps etc. as standard
	Removable autoclavable pump heads on a single mounting plate for easy handling
	Open-frame gassing system for easy expansion and alteration
	Stainless steel housing for corrosion resistance
	Powerful stirrer motor
	Temperature control using an aluminium block for accuracy without glass jackets and heater pads

Handling is a key issue for Multifors and the use of removable autoclavable pump heads mounted on a plate makes preparations for autoclaving and subsequent set up much simpler. The vessels remain in a holder even in use and reagent bottles plus sample devices can be mounted on the same frame for both autoclaving and operation. Easy access is provided to all controls and the gas supply system is mounted on an open frame at the rear of the unit. This makes expansion and alteration very easy. The operating panel is mounted above the gassing system and can be removed for relocation. Up to three base units (six vessels) can be independently controlled from a single X-DDC panel and values for all units displayed on a single overview screen. Additional operating panels can be added to existing base units easily to allow for future expansion or splitting a group into smaller functional units.

Vessel sizes:

500 ml working volume, 700 ml (cells) and 1000 ml (bacterial), in pairs

Maximum expansion:

3 base units per operating panel, i.e. 6 vessels

Speed ranges:

100—1200 rpm for bacterial systems, 30-300 for cell cultures

Temperature range:

~5°C above coolant to 60°C

Other Parameters:

Feed pump control, pH, PO₂, antifoam,1-4 gas mix, mass flow control, external analogue input/output