The CoolSafe range of Freeze Dryers
The CoolSafe family of freeze dryers comprises of a large range of different size condensers and with a choice of either –55 °C,–95 °C, –100 °C or –110 °C temperatures.
The sizes offered are from 4 litres up to 15 litres for bench-top models and 80 litres on Superior floor standing models. All the condensers are heavily insulated to save energy and give increased performance characteristics.
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The seamless, gasket-free construction ensures long life and maintenance-free usage, together with easy cleaning and fast de-icing.
A vacuum valve between the condenser and the vacuum pump allows for separate cool down of the condenser and warm up of the vacuum pump giving an efficient start-up sequence. The vacuum valve will only open if the condenser temperature is low enough to capture vapours – otherwise it remains closed, thereby protecting the pump and the sample and not allowing premature operation. |
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The CoolSafe control options
Basic with temperature display and AWO indicator (Alarm-Wait-OK) Temperature display indicates condenser temperature and AWO shows Alarm|Wait/OK status. When “green” OK is indicated the unit is ready for freeze drying.
PROmicroprocessor control via display and key-pad. Temperature and pressure display and measurement to 0.001 mbar. Offers full programming capability in Automatic mode or basic operation in Manual mode.
Controls temperature of chambers with electrically heated shelves, auto-start and stop, pressure regulation, de-ice and time. Including alarms for overload, malfunctions of compressors and sensors.
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Vacuum regulation
Vacuum regulation and control available only on PRO versions.
The choice of Teflon coating
When working with aggressive solvents and acids such as HCl,TFA, DMSO, etc. the option of a “heavy-hard” 6 layer Tefloncoating of the condenser chamber is available, ensuring longevity and easy cleaning and decontamination.
This is often a wise option to select, especially when requiring a low temperature condenser with versatility, multi-purpose applicability and resistant to heavy use with the most aggressive liquids and solvents. |
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De-ice
Usually an electric de-ice facility is not always necessary, especially on small volume condensers, a small amount of hot water in the condenser will allow easy removal of “ice core” with thawing and consequent drainage. After wiping dry the freeze dryer will be ready for operation again in a few minutes. If electric de-icing is a requirement – at the press of a button, the condenser wall warms up and releases the “ice plug” which can then be removed, the condenser wiped dry and the freeze dryer is ready for operation.
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Bench top or Floor standing
The CoolSafe series are delivered as standard for direct placement on the laboratory table – but can also be supplied with lockable castors for easy transport and saving laboratory bench space. Alternatively a trolley (with lockable castors) is available, with location for the vacuum pump, making the complete system a mobile freeze drying unit that can be positioned anywhere in the lab.
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Choosing your CoolSafe
• Faster drying/trapping with easy maintenance free operation
• Seamless stainless steel condensers with external coolingcoils
• Built-in drain valve and vacuumvalve
• Digital display of temperature
• Basic or PRO models with Temp display and/or measurement,
display of Temp & Vacuum.
• Wide range of sizes, 4;9;or15 litre capacities.
• Lowest temperatures of –55°C or –95°Cor –100or–110°C |
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The CoolSafe “family” can offer high performance freeze drying and ease of operation from models that suit your exact require ments and specifications.
CoolSafe 55 is the economical choice for water based samples and the CoolSafe 110 for those samples that may be aqueousbut also contain organic solvents, strong acids or other volatiles.
For freeze drying with full control and measurement of temperature and pressure, then the CoolSafe PRO models are the preferred choice, with features that include freeze drying in chambers with electrically heated shelves with up to 15 programmable steps, storage of 5 distinct protocols, temperature/vacuum regulation and optional computer connection and data collection in Excel format.
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