Cryostream Compact

The 600 series Cryostream had an unrivalled reputation for efficiency and reliability. The 700 series, Cryostream Plus and Cryostream Compact have been built to the same high specifications, but incorporate a number of design enhancements, all leading to longer component lifetime, improved efficiency and increased reliability.

Specific Differences between the 600 and 700 series include:

Improved Laminar Flow System
The heater and sensor probe has been removed from the nozzle of the Cryostream to improve the robustness of the nozzle and Coldhead. The gas temperature is now controlled in the Coldhead and the temperature is ‘mapped’ to the crystal position. With the heater and sensor removed from the nozzle, the laminar flow system is improved. This reduces the possibility of icing and improves the cooling ability of the stream. The new robust nozzle lends itself to being orientated at any angle.

The Transfer Line from the Dewar to the Cryostream Coldhead is about 30 cm longer, allowing the Cryostream can now be run with a greater variety of Dewar Vessels.

The Controller now has a variable flow of 5 and 10 litres / minute. This is controlled with the use of a TURBO button on the controller and is useful when higher flows are needed.

The ‘Fast Start’ facility means the Cryostream can be started simply by switching on and pressing START, meaning it is quicker to reach a required temperature without the need to enter complicated programming steps. Programmability is still retained when needed.

The COOL function draws liquid from the Dewar at a higher flow rate to cool the Coldhead quickly. This is very useful where time is important, eg. Beam lines. The Cryostream can reach 100 K in 20 minutes from warm, an improvement of more than 20 minutes.

The new diaphragm pump is enclosed in a box, rendering it much quieter than the older type. Many small changes mean that the new pump is more efficient, with a longer service interval.

All new 700 series Cryostreams are fitted with quick-release metal to metal tube connectors, which are easier to fit and prevent moisture contamination. These can also be retro-fitted to older systems.