[. . . ] Objective Cooling Collar Instructions Description: The Bioptechs Cooling Collar is an attachment device to remove heat from an objective through fluid transfer. [. . . ] Place the objective cooling collar onto the exposed cylindrical portion and secure by tightening the 5/64th socket cap screw. Attach coolant and drain lines to the barbs and pump coolant through the Cooling Collar at a pressure not exceeding 5PSI. In cases where objective temperatures are to be lowered more than 10°C below ambient, a thermal isolator should be used to increase thermal efficiency and prevent condensation from forming on the exposed lens element. Objective Cooling Ring w/Barb Fittings Objective Thermal Isolator The Bioptechs Thermal Isolator is made of a low thermal conductivity material for mounting objectives to the nosepiece of a microscope, and provides a gas trap to enclose the exposed optical elements from condensation. It is necessary to provide a supply of dry air or gas into the base of the Thermal Isolator. The Thermal Isolator will add 9mm to the height of the objective, therefore it is usually necessary to elevate the stage by the same amount. Due to the wide variety of stages available, Bioptechs does not provide spacers for stage mounts. [. . . ] Apply dry air/gas at a rate sufficient to maintain a positive atmosphere of dry air/gas in the cavity formed between the last element of the objective and the window of the isolator. 3560 Beck Road · Butler, PA 16002 · Voice: 724-282-7145 · Fax: 724-282-0745 · E-mail: info@bioptechs. com · Web: www. bioptechs. com [. . . ]