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| ====== Veeco Thermal Evaporator Wngr 489 ====== | ====== Veeco Thermal Evaporator Wngr 489 ====== | ||
| - | Glass bell jar pumped by a diffusion pump which is backed by a mechanical pump. Commissioned about 1965? O-ring sealed. Base pressure about 1 x 10^-6 torr. Ion gauge and convectron gauges. | + | Glass bell jar pumped by a diffusion pump backed by a mechanical pump. Commissioned about 1965? O-ring sealed. Base pressure about 1 x 10^-6 torr. Ion gauge and convectron gauges. |
| - | ==== Current | + | ===== Status |
| + | == 12 August 2014 == | ||
| + | **Inactive** - Leak detected between bell jar and base plate. | ||
| + | |||
| + | |||
| + | == 05 July 2012 == | ||
| Two of the three crystal monitors are currently operational. | Two of the three crystal monitors are currently operational. | ||
| Shutter is not operational. | Shutter is not operational. | ||
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| ===== Maintenance Log===== | ===== Maintenance Log===== | ||
| - | 07/13/2012 - Diffusion pump oil changed. Refilled with 200 cc Dow 704. Old oil had yellowish color. No visible debris. Some tarring on the DP walls. | + | == 09/02/2015 - JH == |
| + | |||
| + | - Chiller water turned black due to the break down of glycol in the cooling water (causing the cooling water to become corrosive). | ||
| + | |||
| + | - Update to the waterlines for cooling the evaporation terminals and crystal monitors is complete. | ||
| + | |||
| + | - Water leak found for line going into diffusion pump, possibly caused by the corrosive water in water the lines. | ||
| + | |||
| + | == 06/19/2014 - JH == | ||
| + | - Diffusion pump cleaned, and oil changed. | ||
| + | |||
| + | == 06/19/2013 - RW == | ||
| + | |||
| + | - Roughing pump oil changed. Old oil in good condition. | ||
| + | |||
| + | == 07/ | ||
| + | |||
| + | - Diffusion pump oil changed. Refilled with 200 cc Dow 704. Old oil had yellowish color. No visible debris. Some tarring on the DP walls. | ||
| + | |||
| + | == 07/03/2012 - RW == | ||
| + | |||
| + | - Roughing pump oil changed. Good color. Some debris. | ||
| + | |||
| + | == 8/ | ||
| - | 07/ | + | - Roughing pump oil changed. |
| - | 8/09/2011 - Roughing pump oil changed. Old oil was brown and had significant amounts of debris floating in it. Added a permanent maintenance log to the blue binder holding all of the user manuals for the system. | + | == 6/17/2011 - RW == |
| - | 6/ | + | - Inside of bell jar and all surfaces cleaned. Shutter operation fixed. Ion gauge degaussed; now reads more realistic pressure. |
| ====== Schrader Thermal Evaporator Wngr 489 ====== | ====== Schrader Thermal Evaporator Wngr 489 ====== | ||
| - | Stainless steel box evaporator commissioned 1991. Conflat-sealed except for o-ring-sealed front door. Base pressure few x 10^-8 torr. Cryopumped. Roughing pump is rotary vane 27 cfm pump. | + | Stainless steel box evaporator commissioned 1991. Conflat-sealed except for o-ring-sealed front door. Base pressure few x 10^-8 torr. Turbo pumped. Roughing pump is rotary vane 27 cfm pump (?). 3 thermal sources monitored by quartz crystals. Reactive environment possible. |
| + | ===== Status ===== | ||
| + | == June 2013 == | ||
| + | Upgraded over 2012/13 academic year by Casey Hines. Casey' | ||
| - | ===== Current Status (April | + | == June 2011 == |
| Inactive. | Inactive. | ||
| ===== Maintenance Log===== | ===== Maintenance Log===== | ||
