Thermal Management   ETM has developed a line of tailored cooling subsystems ranging in capacity from 3 kW to over 200 kW, providing coolant flow from 3 GPM to 60 GPM (10 liters per minute to 230 liters per minute). Heat removal is accomplished with liquid cooling mediums such as low conductivity deionized water, Coolanol, PAO, and Glycol mixtures. In addition to the basic job of removing heat from high-power electronics, ETM's heat exchangers are tailored to meet additional requirements driven by the customers' applications. ETM tailored cooling subsystems use liquid-to-air and liquid-to-liquid transfer, and active refrigeration.

• Packaging for outdoor or mobile use • Extended operating temperature ranges • Precision temperature control and monitoring • Nitrogen blanketing • Active control of resistivity • Full-flow filtration • Coolant preheating • Economizer coils to eliminate dependence on mechanical refrigeration in cool   weather • Redundancy and on-line repair