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Cool Drawer Dual Sensor
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.
Features
- Dual crystals
- Cool Drawer crystal holder
- No internal cables
- Crystal shutter
- 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
Specifications
| Type | Cool Drawer Dual Sensor | |
|---|---|---|
| Finish | Stainless steel, gold plated Cool Drawer™ | |
| Cooling water | Minimum water flow of 150 to 200 cm³/min using 1/8 in. O.D. tube, 30°C max. (Do not allow to freeze) | |
| Crystal | Industry standard 0.550 in. diameter | |
| Air supply | 55 to 60 PSI regulated | |
| Electrical connection | Two standard female BNCs on atmosphere side | |
| 1 in. bolt and compression fitting sealed terminations | ||
| Materials | 304 stainless steel, Teflon®, ceramic, beryllium nickel, VITON® | |
| Temperature | Operational environment to 300° C with water cooling or 165° C without | |
| Mounting | 1.015 in. ±0.010 in. diameter aperture | |
| CF 40 welded terminations | ||
| Materials | 304 stainless steel, ceramic, beryllium nickel | |
| Temperature | Operational environment to 450° C with water cooling or 200° C without | |
| Mounting | Mates with 2 ¾ in. ConFlat® type flanges | |
Accessories
| Cool Drawer Dual Sensor | |
|---|---|
| Part Number | Description |
| 750-420-G1 | Solenoid Valve, 24V (for use with shuttered and multi-crystal sensors) |
Consumables
| Name | Description |
|---|---|
| Quartz Monitor Crystals | Quartz Monitor Crystals |
Spare Parts
| Cool Drawer Dual Sensor | |
|---|---|
| Part Number | Description |
| 123259 | Cool Drawer Sensor Crystal Retainer |
| 123261 | Cool Drawer sensor Drawer |
| 123260 | Cool Drawer Sensor Drawer and Retainer Combo |
| 147206-2 | * Bellows with 35 in. tube |
| 147207 | Bellows and cover assembly (Includes all parts marked with *) |
| 147401 | Shutter |
| 147402 | Link |
| 147403 | * Actuator |
| 147406 | * Bellows support |
| 147407 | * Bellows Cover |
| 147408 | * Threaded shaft |
| 147411 | Spacer |
| 147424 | * Bellows tube |
| 082-026 | # 2-56 Nut (part of heat shield assembly) |
| 082-064 | * Lockwasher |
| 084-205 | * #4-40 x 3/16 Phillips screw |
| 800128 | #4 Lockwasher |
| 800371 | Shoulder Screw |
| 800372 | Washer |
| 800416 | * 6-32 x 3/16 in. set screw |
| 803313 | * Spring |
| 123223-2 | Conduit brazed assembly - short pin |
| 803102 | O-ring for 5 port adjustable feedthrough |
| 803261 | Washer for 5 port adjustable feedthrough |
Datasheets
Manuals
- Installation and Service Manual - Cool Drawer Sensor Heads (English) (3 MB)
- Instruction Sheet - CrystalTwo Switch (English) (469 kB)
Catalogs
3D Step Files
Other Files
- Technical Note - Cool Drawer Sensor Head Termination of Electrical Connections (English) (295 kB)
- Technical Note - Cool Drawer (Maxtek) Sensor Head vs Temescal Sensor Head (English) (53 kB)
- Techincal Note - Crystal Replacement (English) (45 kB)
- Technical Note - Sensor Alignment (English) (32 kB)
- Technical Note - Dual Sensor Head -Replacement of Bellows Assembly (English) (46 kB)
- Technical Note - Use of Cool Drawer (Maxtek) Sensor Heads in a Sputtering Environment (English) (32 kB)
