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Nomenclature of the vacuum system components
| Component | Description | Component | Description | Component | Description |
|---|---|---|---|---|---|
| Multi-stage dry pump (pre-pump) RUN and STP buttons are used |
| Gate-valve state: closed, not allowed to open |
| Pressure gauge state: reading |
| Scroll pump |
| Gate-valve state: closed, allowed to open |
| Pressure gauge state: out of range |
| Turbo pump state: off |
| Gate-valve state: open, allowed to open |
| Pressure interlock display red: condition not met |
| Turbo pump state: accelerating |
| Cold-cathode status display circle: status display |
Tools necessary for operation
It is necessary to open a couple of windows to be ready to operate the vacuum system. You must be operating from one of the hutch computer (mec-daq, mec-monitor, mec-console, mec-laser, mec-hutch01, mec-laptop08), or you can ssh to these computers.
~> mechome in a terminal to open the above window. In the top left diagram, press the "Vacuum" button to unfold a menu and select MEC Vacuum. The following window will open.
The above window will be used to
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operate the pumping system components: pumps, gate-valves, etc
~> tc_vacuum in a terminal when logged as mecopr. It opens the above window, called "striptool graph" with 4 curves. You can reshape the window and change the time axis range to monitor pressure values over a long time span (~ 1 hour). The curves correspond to the following gauges:
MEC:TC1:GPI:01:PMON → target chamber Pirani gauge
MEC:TC1:GCC:01:PMON → target chamber Cold-cathode gauge
MEC:SEW:GPI:03:PMON → scroll pump Pirani gauge (Maglev roughing)
MEC:SEW:GPI:04:PMON → scroll pump Pirani gauge (Varian turbo roughing)
Primary vacuum
Secondary vacuum
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