Cell Fill Procedure
Initial State :
System should be pumped out
All valves are open except BV14 (The valve between bellows and roughing pump)
All bottles are closed
Turbo pump is on
Purifier heaters are on
Ion Pump is on
Fill Procedure
- Close BV15 and GV1
- Put turbo pump in "Standby mode"
- Turn ion pump off
- Close BV1, BV2, BV3, BV4, BV7, BV10 and BV13
- Open bottle 1
- Close bottle 1
- Open DV1
- Gently open BV2, flow gas slowly
- Close BV11
- Record pressure and temperature
- Close BV12
- Open BV15
- Close DV5
- Slowly open BV14 until Pirani gauge 1.0e-2 torr
- Close BV14
- Open DV5
- Open GV1
- Pump until Cold Cathode Gauge is at 1e-5 mbar or so