Leak Test - September 23, 2021
- Steve Gibson
Table of Contents:
Test Description
Leak test after chamber had been pumping down for 5.5 days, after first installation of bench support cart and MLI inside chamber.
Test Data
Note data in these files go back to midnight, or 10 hrs before test was started.
Description | File |
|---|---|
kpfvac service telemetry (vac gauges, vac pump telemetry) |  |
kpfmet service telemetry (Vaisala temp, pressure, RH) |  |
Test Log
Time | Who | Description |
|---|---|---|
10:07 am | SG | Gate valve closed |
10:09 am | SG | Turbo pump stopped |
12:50 pm | SG | Chamber pressure over last hour looks fairly linear (by eye), with a rate of +0.0027 Torr per hour.  |
1:40 pm | SG | Gate valve power outlet on PDU turned back on. Gate valve remained closed as expected. |
3:02 pm | SG | Will updated the dispatcher for VCH_LOVAC and VCH_HIVAC |
3:30 pm | SG | Pressures on either side of gate basically equal. Turned turbo pump on to force lower pressure on pump side of gate valve. |
3:32 pm | SG, CS | Opened gate valve |