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Waters Alliance Column Heater 186001863***Unit was tested to specifications and able to reach set point temperature. Column heater is preowned with slight wear from normal use. Purchase of item includes 30-day warranty. See photos for details.(Please be advised that any warranty/guarantee/return policy provided from the seller is between the buyer and the seller only. Bid on Equipment is not and cannot be held responsible in any way. Please reference our Terms and Conditions for further information.)The Alliance series column heater and column heater/cooler are designed to manage and maintain column temperature within the column compartment. In addition, three optional valve configurations are available that provide flow path switching and column regeneration under software control from the separations module.The column heater is a forced-air convection heater. When the temperature is set at the separations module, a command is sent to a column heater CPU board that controls the temperature by turning the heater element on and off to achieve the desired column temperature.The column heater and column heater/cooler are optional devices to the Waters separations module that physically attach to the separations module. Typically, the column heater is attached to the right hand side of the Alliance separations module by three mounting screws.The column heater needs no connection to an external power source. The column heater receives all its required power from the separations module.Additional Prep Fees May Apply