Cold N2 Gas for Stable Cooling in Temperature Controlled Applications Down to -160ºC

Norhof manufactures LN2 auto-fill cooling systems, however, in addition to its known systems, also a variant in N2 cold gas supply systems. Whilst liquid nitrogen has a better cooling capacity, the advantage in using cold N2 gas, especially in small objects where a heater is present, to have more stability and less turbulence of evaporating LN2 (bubbling).

Norhof’s #800 series is fully programmable with several control choices. The controllable N2 Cold Gas flows up to 60 litre/minute. The system has several N2 Cold Gas control options, such as, pressure control, PID temperature control with one temperature sensor and software monitoring. The lowest possible temperature attained in the sample is -125ºC.

Applications for cold N2 gas include: automatic cooling of DSC systems; automatic cooling of small test chambers.

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