Cobra offers Cryostream-like efficiency and reliability without the liquid.
Using nitrogen gas, the Cobra offers complete freedom from the challenges presented by liquid nitrogen such as storage and, safety. Utilising gas, also removes the hassle of remembering to refill the Dewar. In fact, the Cobra can be left to run for weeks or even months without any user intervention, offering complete peace of mind and a stress-free laboratory environment.
The Cobra is fully programmable, and can produce a cold stream at any temperature between 80 and 500 Kelvin, with a stability of 0.1 Kelvin. The Cobra can utilise a laboratory nitrogen gas supply or a nitrogen gas generator which produces pure dry nitrogen gas from the air.
Features & Tech Specs
Cobra is an open flow nitrogen cooler that offers simple Cryostream-like efficiency and reliability without the liquid – the best of both worlds!
The Cobra at a glance:
- No liquid nitrogen required
- Temperature range of 80-400 K or 80-500 K for the Plus
- Excellent stability of 0.1 K with ability to log and record temperatures
- New controller, offering an ergonomic design with a touch screen, USB and ethernet ports
- Complete programmability and ability to monitor and control remotely via Cryoconnector software and Oxford Connect
The Cobra is simple and easy to use
Room temperature compressed nitrogen gas is cooled by the Cobra refrigerator (which incorporates a GM closed cycle cooler) and delivered to the Cobra head via a vacuum insulated transfer line. Whilst the Cobra head is smaller than the Cryostream coldhead, the dimensions of the nozzle have been retained, meaning the Varibeam support stand can be used to support and position the gas delivery head.
An external stream of nitrogen gas (or dry air) at room temperature provides the shield gas, which prevents icing of the sample.
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