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, type mechome to open the above window. It is the start point of many processes in the MEC system.
MEC Vacuum
In mechome, in the top left part of the window, press the "Vacuum" button to unfold the menu, then select MEC Vacuum to open the above window. It will be used to operate the pumping system components: pumps, gate-valves, etc
tc_vacuum
In a terminal logged as mecopr, type tc_vacuum to open the above window. Often called "striptool", this type of window can display the time evolution of some environmental parameters. Here it shows 4 curves monitoring the pressure value read by 4 different gauges. 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)
List of PVs associated to the vacuum system components
Pumps
PV | Function | Logical values |
---|---|---|
MEC:MEZ:PMF:01:MPSTART_SW | Ebara multi-stage pump 1 status | 0: Low=off / 1: High=on |
MEC:MEZ:PMF:01:ALMRST_SW | Ebara multi-stage pump 1 reset button | 0: Low / 1: High |
MEC:MEZ:PMF:02:MPSTART_SW | Ebara multi-stage pump 2 status | 0: Low=off / 1: High=on |
MEC:MEZ:PMF:02:ALMRST_SW | Ebara multi-stage pump 1 reset button | 0: Low / 1: High |
MEC:PR60:PWR:1:Outlet:2:SetControlAction | Edwards scroll pump associated with turbo 2 | 1: on / 2: off / 3: reboot |
MEC:TC1:PTM:02:START_SW | Varian turbo pump 2 status | 0: Low=off / 1: High=on |
Gate-valves
PV | Function | Logical values |
---|---|---|
MEC:TC1:VGC:11:OPN_SW | Target chamber venting with compressed dry air | 0: Low=closed / 1: High=open |
MEC:TC1:VGC:12:OPN_SW | Target chamber venting with atmospheric air | 0: Low=closed / 1: High=open |
MEC:TC1:VGC:04:OPN_SW | Primary vacuum line / target chamber | 0: Low=open / 1: High=closed |
MEC:MEZ:VGC:18:OPN_SW | Primary vacuum line venting | 0: Low=closed / 1: High=open |
MEC:MEZ:VGC:17:OPN_SW | Ebara pump 1 / primary vacuum line | 0: Low=closed / 1: High=open |
MEC:MEZ:VIC:19:OPN_SW | Ebara pump 2 / primary vacuum line | 0: Low=closed / 1: High=open |
MEC:TC1:VGC:02:OPN_SW | Turbo 2 vacuum line / target chamber | 0: Low=closed / 1: High=open |
MEC:SEW:VGC:15:OPN_SW | Turbo pump 2 / scroll pump | 0: Low=closed / 1: High=open |
Logical permissions on the gate-valves
PV | Function | Logical values |
---|---|---|
MEC:TC1:VGC:11:OPN_OK | Target chamber venting with compressed dry air | 0: Low=forbidden / 1: High=allowed |
MEC:TC1:VGC:12:OPN_OK | Target chamber venting with atmospheric air | 0: Low=forbidden / 1: High=allowed |
MEC:TC1:VGC:04:OPN_OK | Primary vacuum line / target chamber | 0: Low=forbidden / 1: High=allowed |
MEC:MEZ:VGC:18:OPN_OK | Primary vacuum line venting | 0: Low=forbidden / 1: High=allowed |
MEC:MEZ:VGC:17:OPN_OK | Ebara pump 1 / primary vacuum line | 0: Low=forbidden / 1: High=allowed |
MEC:MEZ:VIC:19:OPN_OK | Ebara pump 2 / primary vacuum line | 0: Low=forbidden / 1: High=allowed |
MEC:TC1:VGC:02:OPN_OK | Turbo 2 vacuum line / target chamber | 0: Low=forbidden / 1: High=allowed |
MEC:SEW:VGC:15:OPN_OK | Turbo pump 2 / scroll pump | 0: Low=forbidden / 1: High=allowed |
Pressure gauges
PV | Function |
---|---|
MEC:TC1:GMP:01:PRESS | Target chamber capacitance gauge (out of order) |
MEC:TC1:GPI:01:PMON | Target chamber Pirani gauge |
MEC:TC1:GCC:01:PMON | Target chamber cold-cathode gauge |
MEC:MEZ:GPI:02:PMON | Primary vacuum line Pirani gauge |
MEC:MEZ:GPI:06:PMON | Ebara pump 1 inlet Pirani gauge |
MEC:MEZ:GPI:07:PMON | Ebara pump 2 inlet Pirani gauge |
MEC:SEW:GPI:04:PMON | Scroll (turbo 2) pump inlet Pirani gauge |