 Thursday, June 12, 2014, 09:28, Anders Mjos, , , , , , , Problems/Solutions, Elevated backing pressure on ISAC Test Stand TMS:RP2
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Anders Mjos wrote:
The performance of the roughing pump has gradually gone down. Notably after the system has been vented. |
 Wednesday, June 18, 2014, 09:23, Anders Mjos, , , , , , , Problems/Solutions, TSH:MB1 Trip & MB1 June 10th water leak
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A water leak on MB1 was found and reported by operations on June 10th e fault 7429
MB1 can not be switched on due to an TSH:MB1 water flow trip. Paddle wheel is rotating.
Wednesday, June 18, 2014, 14:03: Paddle wheel replaced with a used one from beam lines. Model SST150. Signal recovered. |
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Thursday, June 19, 2014, 10:48, Anders Mjos, , , , , , , Problems/Solutions, FC0 did not retract from beam line
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| Upon inspection it was found that the bolt attaching the FC to the actuator had fallen off. The bolt was reattached and FC0 can be actuated in/out again. |
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Wednesday, July 09, 2014, 14:08, Anders Mjos, , , , , , , Problems/Solutions, FEBIAD ANODE current readback
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The read back of the ANODE current was confirmed to be working today with help of Ray D. using a 1kOhm resistor. There is an offset in the read back
which can explain why no current was seen on SiC#30. The resistor between CATHODE and GND was changed from 100 kOhm to 50kOhm. |
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Friday, August 01, 2014, 08:39, Anders Mjos, , , , , , , Problems/Solutions, TMS:RP2 noisy
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| Friday, August 01, 2014, 08:39: Backing pressure 0 / 11 mT |
Tuesday, August 12, 2014, 09:52, Anders Mjos, , , , , , , Problems/Solutions, RTD installed on Supply water 
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Travis assisted in installing a temperature reading RTD from Omega (SA1-RTD-MTP) on the water supply. The RTD has been installed with a 503 Ohm resistor
=> 0V = -175.75 C, 10V = 205.71 C. The RTD has been connected to Ch 9 on the data logger.
Offset calibration data towards the SUPPLY temperature reading is attached. |
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Thursday, August 14, 2014, 08:45, Anders Mjos, , , , , , , Problems/Solutions, FC0 reading full current
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since yesterday around 19h. See attached screen shot of archived data
Thursday, August 14, 2014, 08:40: Rebooted IOC. Still reading full scale only. FC0 reads full scale with signal cable removed.
e-fault 7545 |
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Wednesday, August 20, 2014, 16:25, Anders Mjos, , , , , , , Problems/Solutions, Lost power on TGHT, TBHT and EE simultaniously
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Possible controls problem. Breaker 18 found latched. Can not be re-energized. Burnt smell in PLC / HV area. e-faut 7561
Thursday, August 21, 2014: Dave Morris had a look and was able to isolate the problem to be with one of the low voltage power supplies
in the PLC panel. |
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Wednesday, August 27, 2014, 12:55, Anders Mjos, , , , , , , Problems/Solutions, Water leak on MB1
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| e-faulted by operations Aug 26th |
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Monday, October 20, 2014, 09:17, Anders Mjos, , , , , , , Problems/Solutions, Power bump this weekend tripped off all turbo pumps
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Monday, October 20, 2014, 09:17: Roughing
Monday, October 20, 2014, 09:18 : Turbos started
Monday, October 20, 2014, 09:29 : All turbos at speed |
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Monday, October 27, 2014, 09:26, Anders Mjos, , , , , , , Problems/Solutions, TSG:TP1B noisy
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e-fault 7748
Monday, October 27, 2014, 09:21: Switched off turbos
Friday, October 31, 2014, 10:43 : Venting |
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Monday, November 03, 2014, 14:50, Anders Mjos, , , , , , , Problems/Solutions, IV4 did not close until 4th attempt
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| Indicated with red valve on the EPICS vacuum page |
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Monday, November 24, 2014, 08:41, Anders Mjos, , , , , , , Problems/Solutions, TSG:RP1 replaced
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| by Edi on Friday Nov 11th |
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Friday, December 12, 2014, 13:11, Anders Mjos, , , , , , , Problems/Solutions, HV inspection and cleaning
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| by Ray D and Anders in preparation for 60kV test. Rack insulators and f/t insulators cleaned with windex |
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Friday, December 12, 2014, 13:11, Anders Mjos, , , , , , , Problems/Solutions, HV inspection and cleaning
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| by Ray D and Anders in preparation for 60kV test. Rack insulators and f/t insulators cleaned with windex |
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Tuesday, December 16, 2014, 10:18, Anders Mjos, , , , , , , Problems/Solutions, TP1B and TP6 stopped/fault
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possibly due to HV spark
Tuesday, December 16, 2014, 10:24: Starting TP1B and TP6
Tuesday, December 16, 2014, 10:26: Both turbos at speed. Power 15 W and 17 W. |
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Thursday, December 18, 2014, 14:34, Anders Mjos, , , , , , , Problems/Solutions, GE cooling water lines disconnected
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In preparation for leak check
Thursday, December 18, 2014, 16:37: Reconnected after leak check
Monday, December 22, 2014, 11:02: Water opened. |
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Thursday, December 18, 2014, 16:38, Anders Mjos, , , , , , , Problems/Solutions, Leak found on service cap F/T Q 9 pin connector
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Largest response on the bottom of the insulator.
Thursday, December 18, 2014, 16:39: Closing pumping valves. Will allow system to leak up over night
Friday, December 19, 2014, 08:19: Venting |
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Monday, December 22, 2014, 11:06, Anders Mjos, , , , , , , Problems/Solutions, Copper rod removed
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| A copper rod - not used was removed from one of the cooling lines. |
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Monday, January 05, 2015, 09:06, Anders Mjos, , , , , , , Problems/Solutions, TSG:TP1A found to be timed out after the Hollidays
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Vacuum at 1.7E-7 T
Corrected title from off to timed out . It seems the controller lost contact with the pump when I touched the rack. The pump recovered right back
to 38 kRPM upon restart. |
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