Anders Mjos wrote:

The performance of the roughing pump has gradually gone down. Notably after the system has been vented. See attached screenshot from the archiver. E-fault 7258.

 Edi replaced the backing pump on June 5th.

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.

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.

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.

Friday, August 01, 2014, 08:39: Backing pressure 0 / 11 mT

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.

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

Thursday, August 14, 2014, 11:28: Graham called to inform me that all of the 8 channels on the module was reading high. TRIUMF does not have a spare. He will arrange to have the module repaired.

Tuesday, August 19, 2014, 16:27: Graham has brought the system back into operation with a new vqsx module from the ICB stand.

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.

Friday, August 22, 2014: New 12V and 24V power supplies installed. PLC cabinet vacuumed. A new 24V fan with filter will also be installed.

Tuesday, August 26, 2014: Power restored to PLC cabinet. System is operational again.

e-faulted by operations Aug 26th

 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

Monday, October 20, 2014, 10:11: Switched on optics

e-fault 7748

Monday, October 27, 2014, 09:21: Switched off turbos

Friday, October 31, 2014, 10:43 : Venting

Friday, October 31, 2014, 14:3: Turbo replaced by vacuum group

Indicated with red valve on the EPICS vacuum page

 by Edi on Friday Nov 11th

by Ray D and Anders in preparation for 60kV test. Rack insulators and f/t insulators cleaned with windex

by Ray D and Anders in preparation for 60kV test. Rack insulators and f/t insulators cleaned with windex

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.

Tuesday, December 16, 2014, 11:37: Happened again. Restarted.

 In preparation for leak check

Thursday, December 18, 2014, 16:37: Reconnected after leak check

Monday, December 22, 2014, 11:02: Water opened.

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

Friday, December 19, 2014, 11:55: F/T and insulator removed. Lid not yet installed. Spark marks found on the insulator (see attached photo).

Installed blank off on F/T Q. New o-ring (1-1/02235) and screws 10-24x0.50 (1-2/02526). F/T insulator reference ITA0439

Monday, December 22, 2014, 09:54: Roughing

Monday, December 22, 2014, 10:25 : 0.5 T at CG1

Monday, December 22, 2014, 11:00: No leak detected at 0.2 T

Monday, December 22, 2014, 11:01: Starting turbos

Monday, December 22, 2014, 11:02: Opened water flow on GE (and TP1B)

Monday, December 22, 2014, 11:03: Some noise from TP1B around 12 kRPM

Monday, December 22, 2014, 11:07: TP1B at speed

Monday, December 22, 2014, 11:10: TP1A timed out restarted. Bypass BV1A required.

Monday, December 22, 2014, 11:11: Turbos at speed.

Monday, December 22, 2014, 11:11: Vacuum at 2.6 E-5 T

Tuesday, December 23, 2014, 08:27 : Vacuum at 1.8E-6 T

Tuesday, December 23, 2014, 08:51: Opened water. Vacuum stable at 1.7E-6 T

Tuesday, December 23, 2014, 09:05: No leaks found with leak detector. Base leak rate <7.7E-8 mbar-l / s

Monday, January 05, 2015, 09:28: Repeated leak check. Both doors. Sprayed He through service cap cover. No response above 2.4E-8 mbar-l/s base leak rate.

A copper rod - not used was removed from one of the cooling lines.

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.