 Thursday, June 11, 2015, 16:59, Isaac Earle, Development, Other, Controls, Lab Test of New T1/T2 Level Sensors
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The new T1/T2 level sensors (Omega LVCN414) were tested in the RH HC lab today using the Omega software on a laptop and positioning the level sensor
flange above a bucket of water with similar height as the expansion tank.
The level sensors behaved as expected with varying water level. |
Friday, June 19, 2015, 17:11, Isaac Earle, Development, Other, Controls, PLC Test of Ultrasonic Level Sensor 
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The new T1/T2 level sensors (Omega LVCN414) were hooked up to the PLC and the test performed
on June 11 was repeated.
The water level above the base of the bucket was measured using a tape measure, as well |
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Tuesday, October 06, 2015, 14:04, Isaac Earle, Other, Other, Controls, Instructions for loading display screen for T1/T2
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The following instructions were provided by Graham Waters:
From diag5pc bootup |
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Monday, March 07, 2016, 18:22, Isaac Earle, Development, Target 1, Controls, Preliminary Testing of T1 Control System Complete
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Preliminary testing of the new PLC control system and EPICS interface was completed today for the T1 target, T1 cooling package, and T1 collimator.
All systems behaved as specified. This test did not include testing of any T1 thermocouples which will be included as part of the T2 test program
to follow. This is not considered system commissioning, which will follow after all preliminary testing is complete and the commissioning plan document |
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Wednesday, March 16, 2016, 16:50, Isaac Earle, Development, Target 2, Controls, Preliminary Testing of T2 Control System Complete
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Preliminary testing of the new PLC control system and EPICS interface was completed today for
the T2 target, T2 cooling package, T2 collimators, and T1 thermocouples. All systems behaved as specified.
Review of the commissioning plan is currently underway. |
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Thursday, April 07, 2016, 16:44, Isaac Earle, Development, Other, Controls, T1/T2 Controls "Assembly Tests" Completed
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The T1/T2 Control System "Assembly Tests" (Document 118467 Release #1, Section 5) have been completed. The expected result, as
written in the document, occurred for every test. The T2 Shield Thermocouple #3 (B1A:T2:TC3SHLD:RDTEMP) showed slightly erratic behaviour when
viewing archived data. It is uncertain at this point whether or not it will need to be bypassed in the B1A:T2:TGTRDY interlock. |
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Tuesday, June 21, 2016, 09:25, Isaac Earle, Development, Other, Controls, T1/T2 EPICS System With-Beam Testing
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With-beam commissioning tests were completed today by Tony Tateyama and Isaac Earle. The test results are attached in PDF format. These
tests are described in Section 7 of the Commissioning Plan (Document-118467 Release #2). These tests were not part of the official commissioning,
but intended as an additional check of system functionality with beam on, and to confirm that the CCS current protection system performs as expected. |
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Tuesday, August 30, 2016, 14:09, Isaac Earle, Development, Other, Controls, T1/T2 PLC Code Update
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A new version of the T1/T2 PLC code has been uploaded to the PLC CPU. The main change in the new version is a fix to a bug related to the
target MK# which may have caused the previous CPU crashes. The EPICS interface now needs to be updated so that no target information is displayed
on the EPICS screens when there is no target installed, or jumpers for both MK1 and MK2 are detected. This must be tested during the next maintenance |
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Thursday, October 06, 2016, 12:16, Isaac Earle, Development, Target 1, Controls, Expansion Tank High Level Warning Added
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An expansion tank high level warning has been added to the T1/T2 control system under Work Request #4011. The purpose for this new warning
is to alert staff of an unexpected water increase in the unlikely scenario that a leak develops in the heat exchanger between the two fluids and CuALCW
on the secondary side enters the target water system. The new thresholds for high level warn, low level warn, and low level trip have been set at |
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Thursday, March 30, 2017, 09:48, Isaac Earle, Development, Other, Controls, T1/T2 control system de-glitching & target ID changes
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The following changes were made to the T1/T2 PLC control system:
- De-glitching system investigated and Tony discovered that it was programmed incorrectly: the de-glitch time was observed only when a PV
changed from bad state to good, not the opposite (meaning there was actually no de-glitching in place since system start-up in 2016!). This was reversed |
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Thursday, May 05, 2022, 14:38, Adam Newsome, Maintenance, Target 2, Controls, T2-MK1: profile monitor actuation check and repair to connector
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An attempt was made to actuation the T2 profile monitor, however it showed up in EPICS as being not present. Furthermore, the "Remote"
indicator light on the physical controller was not lit up despite the switch being in remote mode. The limit switch indicator light was working.
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Wednesday, March 15, 2023, 15:56, Albert Kong, Maintenance, Target 2, Controls, T2 - M9 and M20 beam blocker actuation and vacuum test 6x
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We tested the actuation of the M9/M20 beam blockers on the T2 monolith (3-4pm).
Vacuum levels remained steady throughout so the M20 o-ring replacement that was performed this shutdown was successful (see strip of 1ACG4 - vacuum
gauge for T2 systems interlock). |
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Thursday, April 06, 2023, 13:35, Albert Kong, Maintenance, Target 1, Controls, T1 Motor Controller Hearbeat Trip (+T2 Heartbeat Trip)
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The T1 motor controller hearbeat tripped (noticed this morning).
This does not seem prevent beam delivery or target ladder actuation (see screenshot, target still ready for beam).
An improperly functioning hearbeat led on a controller may indicate that the controller is beginning to fail. |
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Wednesday, April 03, 2024, 10:48, Adam Newsome, Other, Other, BL1A Holding Tank, BL1A Holding Tank - water level check
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As of 2024-04-03, the BL1A Holding Tank water level is approximately 580L. It is recommended to drain the tank prior to the start of the operating year.
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Tuesday, August 06, 2024, 11:35, Albert Kong, Standard Operation, Other, BL1A Holding Tank, BL1A and RH Active Sump Draining
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The RH active sump was drained (over Jul 31-Aug 01), in total approximately 5500 L of water was sent to city sewage.
We also tried to divert water from the BL1A holding tank to the active sump, and learned that we cannot run back-flow through the sump pump. The
valving configuration used here was V10, V1, SV1, V6 open - V2, V3 closed. (Note solenoid valve SV1 does not serve a purpose and energizing/powering-down |
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Thursday, February 15, 2024, 14:53, Albert Kong, Maintenance, Target 2, Air amplifiers, T2 Lower Air Amplifier Maintenance/Rebuild
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The lower amplifier for the T2 target station air supply was removed for teardown, inspection, and rebuild.
The goal of this operation is to understand wear development in the air amplifier over ~13 years of operation, and potentially determine a recommeded
service interval. |
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Thursday, November 22, 2012, 17:22, Isaac Earle, Standard Operation, Target 1, Active Sump, RH Lab Active Sump Released
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On Wednesday November 21 at approximately 9am the level of the Remote Handling active sump was inspected and found to be at approximately the 7000L
level. The high level alarm sounds at approximately 5800L. The high level alarm had been silenced by somebody, and RH staff had not been notified.
It is unknown when the high level alarm was reached. The total sump volume is 7200L (which if exceeded will cause active water to spill on |
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Wednesday, September 25, 2013, 14:05, Isaac Earle, Standard Operation, Target 1, Active Sump, RH Lab Active Sump Level Sensor Inspected
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A notification was received that the RH lab active sump level sensor is due for annual inspection. The sensor was tested and is working properly.
The water level was observed to be only a few inches below the sensor level. Ken Buckley was notified and someone from his group will sample
and drain the tank according to the procedure in Document-64834 |
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Monday, November 17, 2014, 10:14, Isaac Earle, Development, Target 1, Active Sump, Filter Installed Downstream of RH HC Lab Active Sump
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A filter housing and filter were installed by Dan McDonald on November 14 in the piping section between the Remote Handling Hot Cell Lab active sump
and the city sewer drain as shown in the attached picture. The purpose of the new filter is to prevent pieces of active material from being released
to the drain when the sump is pumped out. If small pieces of active material enter the sump they may sink to the bottom, and not be captured in a |
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Tuesday, November 18, 2014, 10:52, Isaac Earle, Standard Operation, Target 1, Active Sump, RH Hot Cell Lab Active Sump Released
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Release of the Remote Handling Hot Cell Lab active sump water was completed today by
Hua Yang. During the procedure fields of up to 0.50 micro Sv/hr were measured around the newly installed filter housing. After completion the filter was removed and replaced. The filter measured 450cpm on the |
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