LN2/LCO2 TEMPERATURE CHAMBERS
Expendable gas cooled environmental chambers such as the EC1X, EC0X and EC1.3W offer very fast ramping rates and extended temperature ranges down to -184 °C (using LN2) and -73 °C ( using LCO2), while allowing for extremely precise control of the temperature. These environmental chambers are less expensive and have negligible maintenance costs when compared to the refrigerated chambers. These bench top temperature chambers use convection style heating with vertical air flow to achieve precise control of temperature with minimal temperature gradients throught the work space. A wide range of expendable cooling options are available and conversion of the chambers from one to another, on site is both simple and inexpensive. LCO2 supply is available in 50 or 75 lb siphon cylinders pressurized at 850 psi, a 350 lb dewar flask, or a bulk satellite system at 300 psi. The lower limit using LCO2 is -73 °C. LN2 is available commercially in a 350 lb dewar flask which can be set at pressures between 20 and 200 psi or alternatively, a bulk LN2 supply system, having a typical working pressure of 25 psi. The lower limit using LN2 is -184 °C.
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