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Message ID: 87     Entry time: Mon May 1 17:10:25 2023
Author: Julian, Cao 
Type: Physics 
Category: VAC 
Subject: Installing Pirani gauge and RGA probe onto to vacuum chamber 

[Julian, Cao]

  • 03:00 pm: Particle count
    1. : Zone 3
      • 0.3 um: 498
      • 0.5 um: 124
      • 1 um: 124
    2. : Zone 4
      • 0.3 um: 748
      • 0.5 um: 457
      • 1 um: 374
  • 03:32 pm: Installing Pirani gauge onto pump line
  • 03:51 pm: Finish installing Pirani gauge, start installing RGA probe
  • 04:03 pm: Finish installing PRGA probe, start routing cable from gauge controller to Pirani gauge
  • 04:30 pm: All ethernet cables are routed and connected to gauge controllers
  • 04:48 pm: Power gauge controller up, all gauges are recognised and readout shows atmospheric pressure as expected (1000 mbar)
  • 04:51 pm: End-of-work particle count
    1. : Zone 3
      • 0.3 um: 1413
      • 0.5 um: 872
      • 1 um: 623
    2. : Zone 4
      • 0.3 um: 374
      • 0.5 um: 166
      • 1 um: 166
We also closed all the valves so we can start testing vacuum pump down of isolated volume tomorrow.

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