The Cool Drawer Dual Sensor is designed for use in critical processes where it is desirable to have a second crystal in the vacuum chamber.
Water cooled, cast stainless steel sensor body, two Cool Drawer crystal holders and a pneumatically actuated shutter provide for a rugged sensor head with the extra reliability of a backup crystal. A cleaner, more reliable vacuum system installation is possible as there are no coaxial cables inside the chamber.
Cool Drawer crystal holder
No internal cables
Available with: CF40 feedthrough and 2.54 cm (1 inch) bolt feedthrough
Bakeable if ordered with welded CF40 flange
Adjustable length if ordered with compression fittings
Sensor/feedthrough combinations available welded to customer specified lengths
Minimum water flow of 150 to 200 cm³/min using 1/8 in. O.D. tube, 30°C max. (Do not allow to freeze)
304 stainless steel, ceramic, beryllium nickel
1 in. bolt and compression fitting sealed terminations
Operational environment to 300° C with water cooling or 165° C without