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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

PVFunctionLogical values
MEC:MEZ:PMF:01:MPSTART_SWEbara multi-stage pump 1 status0: Low=off / 1: High=on
MEC:MEZ:PMF:01:ALMRST_SWEbara multi-stage pump 1 reset button0: Low / 1: High
MEC:MEZ:PMF:02:MPSTART_SWEbara multi-stage pump 2 status0: Low=off / 1: High=on
MEC:MEZ:PMF:02:ALMRST_SWEbara multi-stage pump 1 reset button0: Low / 1: High
MEC:PR60:PWR:1:Outlet:2:SetControlActionEdwards scroll pump associated with turbo 21: on / 2: off / 3: reboot
MEC:TC1:PTM:02:START_SWVarian turbo pump 2 status0: Low=off / 1: High=on

Gate-valves

PVFunctionLogical values
MEC:TC1:VGC:11:OPN_SWTarget chamber venting with compressed dry air0: Low=closed / 1: High=open
MEC:TC1:VGC:12:OPN_SWTarget chamber venting with atmospheric air0: Low=closed / 1: High=open
MEC:TC1:VGC:04:OPN_SWPrimary vacuum line / target chamber0: Low=open / 1: High=closed
MEC:MEZ:VGC:18:OPN_SWPrimary vacuum line venting0: Low=closed / 1: High=open
MEC:MEZ:VGC:17:OPN_SWEbara pump 1 / primary vacuum line0: Low=closed / 1: High=open
MEC:MEZ:VIC:19:OPN_SWEbara pump 2 / primary vacuum line0: Low=closed / 1: High=open
MEC:TC1:VGC:02:OPN_SWTurbo 2 vacuum line / target chamber0: Low=closed / 1: High=open
MEC:SEW:VGC:15:OPN_SWTurbo pump 2 / scroll pump0: Low=closed / 1: High=open

Logical permissions on the gate-valves 

PVFunctionLogical values
MEC:TC1:VGC:11:OPN_OKTarget chamber venting with compressed dry air0: Low=forbidden / 1: High=allowed
MEC:TC1:VGC:12:OPN_OKTarget chamber venting with atmospheric air0: Low=forbidden / 1: High=allowed
MEC:TC1:VGC:04:OPN_OKPrimary vacuum line / target chamber0: Low=forbidden / 1: High=allowed
MEC:MEZ:VGC:18:OPN_OKPrimary vacuum line venting0: Low=forbidden / 1: High=allowed
MEC:MEZ:VGC:17:OPN_OKEbara pump 1 / primary vacuum line0: Low=forbidden / 1: High=allowed
MEC:MEZ:VIC:19:OPN_OKEbara pump 2 / primary vacuum line0: Low=forbidden / 1: High=allowed
MEC:TC1:VGC:02:OPN_OKTurbo 2 vacuum line / target chamber0: Low=forbidden / 1: High=allowed
MEC:SEW:VGC:15:OPN_OKTurbo pump 2 / scroll pump0: Low=forbidden / 1: High=allowed

Pressure gauges

PVFunction
MEC:TC1:GMP:01:PRESSTarget chamber capacitance gauge (out of order)
MEC:TC1:GPI:01:PMONTarget chamber Pirani gauge
MEC:TC1:GCC:01:PMONTarget chamber cold-cathode gauge
MEC:MEZ:GPI:02:PMONPrimary vacuum line Pirani gauge
MEC:MEZ:GPI:06:PMONEbara pump 1 inlet Pirani gauge
MEC:MEZ:GPI:07:PMONEbara pump 2 inlet Pirani gauge
MEC:SEW:GPI:04:PMONScroll (turbo 2) pump inlet Pirani gauge
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