 Tuesday, August 20, 2013, 08:27, Anders Mjos, , , , , , , Problems/Solutions, TP1B noise - TP1B replacement
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TP1B high frequency noise is coming and going. Power is 22W , current 1.1A (other pumps are 11W and 14W, 0.7A)
Edi from vacuum group notified. He will replace the pump today.
Tuesday, August 20, 2013, 08:40: Turbos off. Vacuum 1.4E-7 T |
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Friday, August 23, 2013, 11:16, Anders Mjos, , , , , , , Problems/Solutions, Possible leak between BV1A, BV1B and PV1
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CG1A is climbing from 0.016 to 0.130 in 30 seconds when isolated.
The leak was confirmed to be between BV1A and PV1 in the bellows. The bellows has been replaced and backing pressure is back to normal values. |
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Monday, August 26, 2013, 13:49, Anders Mjos, , , , , , , Problems/Solutions, TP1A time out/fault sometime this weekend
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Monday, August 26, 2013, 14:07: The turbo could be restarted, but it does not sound happy (Dimo was consulted earlier today). The pump is drawing around
4 A. The current draw is fluctuating between 3.5 and 4.2 A at the same time as backing pressure is spiking from 0.015 to 0.045 T
Monday, August 26, 2013, 15:32:: The turbo failed again. Dimo had a quick look. It will have to be replaced. See e-fault: 6953 |
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Wednesday, August 28, 2013, 11:28, Anders Mjos, , , , , , , Problems/Solutions, Hall probe controller for MB1 removed
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Jens Lassen provided a new controller for the Hall prove. With the help from Graham from controls it was reconfigured and is operational again. The magnet
must likely be calibrated again. |
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Monday, September 09, 2013, 09:12, Anders Mjos, , , , , , , Problems/Solutions, Coil power supply back
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| Ray D. installed the "standard" 6V 200A FEBIAD COIL P/S on Friday morning.It has not yet been tested as water supply was on. |
Monday, September 09, 2013, 09:14, Anders Mjos, , , , , , , Problems/Solutions, Ground Electrode cleaned 
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Monday, September 16, 2013, 17:04: Cleaned GE. Copper shavings were removed from below the guide pins for the Heat Shield. The shavings were sitting
on top of the aluminum support. |
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Tuesday, September 17, 2013, 10:06, Anders Mjos, , , , , , , Problems/Solutions, TGHT insulator cracked
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| The coil insulator has been observed to have cracked earlier. |
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Wednesday, September 18, 2013, 14:54, Anders Mjos, , , , , , , Problems/Solutions, Hall probe calibration
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New calibration of the m/q based on the hall probe after exchanging the controller(MASSOVERQ2). Based on NiO#2-HP-FEBIAD with Ne supplied and ANODE
biased to 200V, 30kV Bias.
CONST11 = -16.3929 |
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Wednesday, September 18, 2013, 16:18, Anders Mjos, , HP-FEBIAD, , , Tube only, 38307-9, Done, Test Target - FEBIAD COIL
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Wednesday, September 18, 2013, 16:18: Starting turbos
Wednesday, September 18, 2013, 16:26 : Turbos at speed
Wednesday, September 18, 2013, 16:28 : Vacuum at 2.8 E-5 T |
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Monday, September 30, 2013, 15:19, Anders Mjos, , , , , , , Problems/Solutions, New purging valves installed on Heat Shield water circuit
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The Heat Shield circuit can now be separately purged for water. Use valves on heat shield circuit to purge the lines for target exchanges from now on.
All paddle wheels have been rotated to allow trapped air to escape the system more easily. |
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Thursday, October 03, 2013, 08:43, Anders Mjos, , , , , , , Problems/Solutions, TMS:TP2 tripped off - controller replaced.
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This morning the turbo was found tripped off.
The controller was replaced by Edi on Friday.
Monday, October 07, 2013, 08:28: Starting Turbo |
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Thursday, October 03, 2013, 14:15, Anders Mjos, , , , , , , Problems/Solutions, TMS:Q1 and Q6 tripped
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Tuesday, October 15, 2013, 16:17, Anders Mjos, , , , , , , Done, TGHT and TB HT test bar test
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HS line is looped. Cu-test bars installed on TGHT and TBHT. Torqued all bolts to 120 in lbs.
Tuesday, October 15, 2013, 16:17: Roughing
Tuesday, October 15, 2013, 16:39: Turbos started. |
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Tuesday, October 22, 2013, 15:20, Rick Maharaj, , , , , , , Problems/Solutions, Target Heater Conductor Block Insulators Replaced
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The Conductor insulating blocks - ITD053C and ITD054C - that secure the target heater and coil conductor blocks were replaced. The existing ones were
cracked and fell apart upon removal. |
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Tuesday, November 05, 2013, 15:50, Anders Mjos, , , , , , , Problems/Solutions, Backing pressure TSG:CG1A and CG1B elevated
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Pressure around 140 mTorr. The pressure started increasing early November 2nd. Will continue to monitor.
Tuesday, November 12, 2013, 09:51 UPDATE
Backing pressure further increased to ~ 350 mTorr over the weekend. Vacuum group has been informed and will replace the pump this week. |
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Tuesday, November 12, 2013, 12:38, Anders Mjos, , , , , , , Problems/Solutions, Vacuumed desk, on and around the beam line
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 Wednesday, November 20, 2013, 08:57, Anders Mjos, , , , , , , Problems/Solutions, Backing pressure TSG:CG1A and CG1B elevated
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Anders Mjos wrote:
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Wednesday, November 27, 2013, 08:27, Anders Mjos, , , , , , , Problems/Solutions, EPICS whiteout
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Since yesterday around 4pm. Due to attempt to use the TMS:ER0 device.
IOC rebooted this morning. Archivers restarted. |
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Monday, December 02, 2013, 08:36, Anders Mjos, , , , , , , Problems/Solutions, Sources archiver started
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Monday, December 02, 2013, 15:21, Anders Mjos, , , , , , , Problems/Solutions, Xantrex 10V 600A installed and in Cathode Negative mode
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| By Ray Dube. |
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