Water leak found on water block lines (E) & (G) on FS #3.
Both lines were removed at the water blocks and the coil connection at the heat shield. They ends were blanked off.
Tuesday, February 21, 2017, 10:32: Roughing
Tuesday, February 21, 2017, 10:34: BV1B opened.
Tuesday, February 21, 2017, 10:51: Turbo pumps started.
Tuesday, February 21, 2017, 11:23: Ion gauge & RGA started. Vacuum @ 7.60E-06T.
Wednesday, February 22, 2017, 10:30: The test stand was pressurized with Air (HPA). The loop was completed through the heat shield line FS #5.
Pressurized @ 80 PSI w/ HPA. Monitor. No response on RGA or Vacuum.
Wednesday, February 22, 2017, 10:42: The test stand was pressurized with Helium. The loop was completed through the heat shield line FS #5. The air was purged from the lines using the Helium.
Pressurized @ 30 PSI w/ Helium. Monitor.
Wednesday, February 22, 2017, 11:57: De-pressurize the lines. No response on RGA.
Wednesday, February 22, 2017, 13:47: Pressurize line (G) @ 40 PSI w/ Helium directly.
Wednesday, February 22, 2017, 14:00: No response on RGA or Vacuum. Disconnect.
Wednesday, February 22, 2017, 14:03: Pressurize line (E) @ 38 PSI w/ Helium directly.
Wednesday, February 22, 2017, 14:30: No response on RGA or Vacuum. Disconnect.
Thursday, February 23, 2017, 08:11: RGA, Ion gauge, & Turbo pumps off.
Thursday, February 23, 2017, 10:21: Venting.
Thursday, February 23, 2017, 11:45 Lines (G)(E) reinstalled w/ new seals
Thursday, February 23, 2017, 11:58: Roughing.
Thursday, February 23, 2017, 13:00: Turbos on.
Thursday, February 23, 2017, 13:05: Ion Gauge on.
Thursday, February 23, 2017, 13:10: RGA on.
Friday, February 24, 2017, 08:15: Waterlines opened on FS #3.
Friday, February 24, 2017, 08:18: RGA froze.
Friday, February 24, 2017, 08:20: Restarted RGA.
Friday, February 24, 2017, 08:48: FS #2, #4, #5 all opened.
Friday, February 24, 2017, 10:20: Vacuum & Leak appear to be stable. Vacuum @ 2.54E-07T
Friday, February 24, 2017, 10:25: Cage re-installed on top of vacuum Chamber
Friday, February 24, 2017, 10:28: Power/sources on
Friday, February 24, 2017, 10:30: Auto ramping TGHT / TBHT to 580 / 200 A @ 4A per min. Heat check.
| Device |
Temp
[C] |
Flow
[lpm] |
| HS + MSP |
21.4 |
4.06 |
| TBHT |
22.2 |
3.28 |
| COIL + EE |
21.2 |
5.16 |
| TGHT |
21.4 |
5.82 |
Friday, February 24, 2017, 10:37: RGA froze (Fatal communication error message).
Friday, February 24, 2017, 10:40: RGA restarted.
Friday, February 24, 2017, 13:30: No major sign of leak detected. Standard response on Vacuum and RGA to heating.
| Device |
Temp
[C] |
Flow
[lpm] |
| HS + MSP |
32.1 |
4.06 |
| TBHT |
24.5 |
3.28 |
| COIL + EE |
23.0 |
5.17 |
| TGHT |
24.9 |
5.80 |
Friday, February 24, 2017, 13:55: Vacuum and water appear leveled off with no indication of a major leak.
Friday, February 24, 2017, 14:00: Auto-cooling started @ 4A per min.
Monday, February 27, 2017, 08:12: Power/sources off. The likely cause for the leak was one of the seals within lines (G)(E). Either one of the O-rings or VCR's. Once the seals were changed, no further leaks were detected.
Wednesday, March 08, 2017, 08:40: RGA timed out. RGA off. No leak detected.
Friday, March 10, 2017, 10:05: Water lines purged.
Friday, March 10, 2017, 10:09: Ion gauge & Turbos off.
Friday, March 10, 2017, 14:24: Venting. |