HALCW ITC:MP1/MP2 pump and motor temperature measurements result:

MP1: pump discharging  port: 78F,  motor rear bearing house:72F  , Motor housing 140F(60C). 6F difference between them is less than 15F manufacturer clarified up limit in instruction manual. 

MP2: pump discharging port:78F,  motor  rear bearing house:72F, Motor housing 122F(50C).

MP1 is better than MP2 on motor status. It could be seen on phase current measurements as well.

Other notes on pump performance:    total flow rate 60GPM , discharging gauge pressure  99 to 100 psi on both pumps with one station all of TM water circuits bypassed + other station  two of TM water circuits bypassed + both stations 2A beam related water circuits  on(2X5).

ITW, ITE, ITW +ITE total , and low active cooling water return flow meter transmitters are inspected and calibrated.  Result:

ITW , PX-750-06Di , Calibrated to  4-20 mA for 0 to 6" H2O DP, linear.    Transmitter works fine.

ITE. PX-750-06Di, calibrated to 4- 20mA for 0 to 6" H2O DP, linear.   Transmitter works fine.

ITE+ITW total, PX-750 -30 SQDI.  It looks like electronic board for square root output is broken. It can not be calibrated  to 4mA @ 0 inch H2O DP. The transmitter is calibrated to 10.25mA - 25.25mA for 0 to30" H2O DP, linear. Transmitter works fine.

 Low active cooling water return, Px-750-30di, smart.  The transmitter is broken. The output current stuck at 44.5mA on all DP.  I tried zero and reset it by following instruction manual, but failed to bring it back. The electronic boards are broken mostly. The production is discontinued by Omega Engineering. A new Omega transmitter PX3005-25WDWBI (linear) will be ordered for its replacement.

2023-06-28: A new Omega transmitter PX3005-25WDWBI (linear) has been installed back to LALCW system in target hall. Transmitter is calibration by manufacturer @ 4-20mA output@0 to 25 in H2O DP. Control group will finish the cable connection in TH, electrical room, and reprogram   on epic page on July -11th.

2023-07-12: Cable connection, formula reprogram, and epic page reboot are done yesterday by Ray.M. New transmitter works fine. All flow rates are displayed on epic page properly with new program formulas.

HALCW system O2 sensor service and calibration were done in Sep 26th. electrolyte and membrane on rose mount sensor 499ADO were refilled and replaced. Sensor was zero and full scale calibrated. The sensor works fine after the job.

100 liters of high active water from HALCW system( mostly from s-tank and pipe lines closing to pumps) are transferred to holding tank in 2A tunnel. Transfer is smooth.  it is a preparation job for ITC:MP1/MP2 refurbishment.  water sample is passed to RPG for assay.

both high active pumps ITC:MP1 and MP2 are refurbished by RH group Maico and Peter. Pumps have been installed back to system with new inlet/outlet flange gaskets. high active water surging tank is refilled with water and pumps were primed. I asked operator to switch on pumps separately. Both pumps work fine. They are quiet and pumps discharging pressure is a little bit better comparing to before refurbishment. Nitrogen gas is injecting into system. O2 level is decreasing and R is going up.

2024-04-09: Joel.S checked pumps phase current draw: MP1 16.8 to 17.1A on each phase. MP2 17.0 to 17.2 A on each phase. They are normal. Pump body temperature are below 45C which is fine. 

water are supplied to both ITE and ITW. I did a general inspection on HALCW system. Two small leaks on 2" shut off valves are fixed. No other leak has been found so far. all water flow meters work fine. MP2 pump discharging pressure is ok which is just above 100 psi on local gauge reading. pump noise are low. pump body temperature is less than 45C which is good. 

HALCW O2 level sensor annual maintenance is done. sensor membrane has been changed and electrolyte has been refilled. gauge is calibrated. It works normal after the job.

HALCW pump ITC:MP1 has been started. water are supplied to both ITE and ITW system. all water signals for individual circuits work fine. no major leak on system. Some small water seeping from small ball valve stems are found in ITW. they will be fixed soon.

HALCW pump ITC:MP1 and MP2 phase current draw measurement result: water supplied to both station. MP1: Black 17.0A, blue 16.9A, red 16.7A.   MP2: black 17.3A, blue17.8A, red 17.3A.    The results are good.  No concern on both motors.

 ITW/ITE water system manual valves water small leak inspection and repairing job is done. Small water drippings have been found on ITE: manual supply and return(valve stems).  ITW: 2A window supply(valve stem), collimator supply(valve stem),EE return(valve stem), HS supply and return(valve stems), tube heater supply and return(valve stems). all small leaks are repaired. 

HALCW resin can loop two filters have been replaced. no water leak on after job check.

Service of  Parker 1/4 quick connectors in ITW and ITE have been done.  all 28 female connectors were serviced. o- rings and valve stem in quick connectors were replaced. the serviced connectors have been installed back to ITW and ITE.  Visually inspected all connectors with flowing through them. No leak, and they function well. 

Friday June 24 2011

The target module has been moved to the Conditioning Station (CS)

Pumping overnight

Saturday June 25 2011

Pressure Service Cap (SC) 3E-6 T

Pressure Containment Box (CB) 6.6E-6 T

High voltage test to 40 kV, unfortunately, the pressure is not great so we stop at 40 kV

Pressure at the end of the day: 1650H was, P SC 2.6E-6T

P CB 6.6E-6 T

Sunday June 26 2011

Pressure P SC 1.6E-6T

P CB 6.6E-6 T

It seems we have a leak. The pressure does not drop in the CB over one day.

Today June 27 2011

 Pressure P SC 1.2E-6T

P CB 6.6E-6 T

We leak check the target module and found two leaks, one on the ground electrode and one on the mounting plate cooling circuit.

This is a new one. We had test this line three times before and it was ok.

Action for tomorrow.

After CS vent, 

Move TM1 to SHC

Survey 

Connect LD to Mounting plate cooling circuit

Open Side panel and leak check.

Meeting at 0830H

Over the period of July 20-21st TM1 had several repairs completed and tested. The easiest of the repairs was the installation of a gasket and a blank off. The next repair was to replace the 2 oring on the side panels that were removed for inspection and repair. The instrument panel oring was replaced again and the previous one measured. Both were found to have the correct diameter of 0.131 inches for the seal groove. When attempting to cut the thermocouple line back to an acceptable distance it detached from the stainless tube running down the high voltage chase. It was discovered that it was only being held in place with heat shrink and that the bend consisted of a hand made copper tube that was flared slightly, a truly poor electrical and mechanical connection. Also discovered was the thermocouple wire was left in the tube, this too was removed. The stainless steel tube was then secured to the tube heater (C) lines with a PEEK tie wrap. The port where the thermocouple line was then blanked off. The extraction electrode and mounting plate feed through stem repair went as practiced and no unexpected events occurred. One thing of note is that because the lines are twisted and some of the tube was removed the quick connects are no longer facing the same direction they were before. During these repairs the Ion gauge screen contacted a filament and caused a fault, this was repaired by edi who rotated the gauge. Roughing was started at ~10 am on July 21st and the turbo pumps turned on at 10:45.  At 13:20 all of the lines and external seals were tested and no leaks were found. The module was at a pressure of 2.9 x 10^-5 Torr (IMG) and 1.4 x 10^-5 Torr (ION). The leak test cart was at a pressure of ~2.7 x 10^-2 Torr and a leak rate of 1.1 x 10^-2 atm cc/sec for the external leak test and the repaired lines. A small response was found in the Tube heater (D) where the leak increased to 2.1 x 10^-8 atm cc/sec. The leak test cart would then no longer drop below 1.9 x 10^-8 atm cc/sec and there was no response measured for lines C, B, and A. Over all very positive results! After 6 hours of pumping down the pressures were 2.0 X 10^-5 Torr (IMG) and 9.7 x 10^-6 Torr (Ion).  

Bevan Moss wrote:

Over the period of July 20-21st TM1 had several repairs completed and tested. The easiest of the repairs was the installation of a gasket and a blank off. The next repair was to replace the 2 oring on the side panels that were removed for inspection and repair. The instrument panel oring was replaced again and the previous one measured. Both were found to have the correct diameter of 0.131 inches for the seal groove. When attempting to cut the thermocouple line back to an acceptable distance it detached from the stainless tube running down the high voltage chase. It was discovered that it was only being held in place with heat shrink and that the bend consisted of a hand made copper tube that was flared slightly, a truly poor electrical and mechanical connection. Also discovered was the thermocouple wire was left in the tube, this too was removed. The stainless steel tube was then secured to the tube heater (C) lines with a PEEK tie wrap. The port where the thermocouple line was then blanked off. The extraction electrode and mounting plate feed through stem repair went as practiced and no unexpected events occurred. One thing of note is that because the lines are twisted and some of the tube was removed the quick connects are no longer facing the same direction they were before. During these repairs the Ion gauge screen contacted a filament and caused a fault, this was repaired by edi who rotated the gauge. Roughing was started at ~10 am on July 21st and the turbo pumps turned on at 10:45.  At 13:20 all of the lines and external seals were tested and no leaks were found. The module was at a pressure of 2.9 x 10^-5 Torr (IMG) and 1.4 x 10^-5 Torr (ION). The leak test cart was at a pressure of ~2.7 x 10^-2 Torr and a leak rate of 1.1 x 10^-2 atm cc/sec for the external leak test and the repaired lines. A small response was found in the Tube heater (D) where the leak increased to 2.1 x 10^-8 atm cc/sec. The leak test cart would then no longer drop below 1.9 x 10^-8 atm cc/sec and there was no response measured for lines C, B, and A. Over all very positive results! After 6 hours of pumping down the pressures were 2.0 X 10^-5 Torr (IMG) and 9.7 x 10^-6 Torr (Ion).

 I again checked the TM this morning (July 22) at 10:00 am (24 hours of pumping), There is no external leaks carts pressure was 0.0x10^-4 Torr and leak rate was 0.0X10^-9 atm cc/sec. The IMG gauge was reading 6.8 x 10^-6 Torr and ION gauge was reading 3.1 x 10^-6 Torr. The lowest we have yet to record on the IMG gauge was 6.6 x10^-6 Torr and that was when the ION gauge was reading 1.2 x 10^-6 Torr and there were several leaks. This is a very good sign. I will continue to check the vacuum throughout the day. 

One more thing of note is that the copper feed thru stems have a design flaw, the holes for the locating pins are too large. As such a custom step pin had to be made. It work functionally the same but is not as intended.

Tm#1 with Ta#37 moved from the south hot cell to the conditioning station. Move went well.

 TM1 has received the Ta#37-LP and has been pumping since thursday. This morning the pressure gauges read, IMG1: 1.6x10^-6 T and IG1: 7.4x10^-7 T.

The high voltage power supply has been connected to all high voltage feedthroughs and the voltage raise to 42 kV. 

High voltage conditioning started around 20 kV and after few minutes we were able to go up to 40 kV. 

The pressure increases on both locations, IG1 went up to 8.1x10^-7T and IMG1 went up to 1.8x10^-6T.

The module is good to go. 

 Pump down in the conditioning station started at ~2:40 for rough down. The turbo pumps were turned on at ~3:30 and at 3:52 the pressures were reading as follows:

IMG in the containment box 9.2 x 10^-5 T

IMG in the secondary 2.0 x 10^-3 T

ION in the service cap 4.6 x 10^-5 T

Note that the cross has been installed on the vacuum vessel which now includes a turbo pump and the IMG 100.

Leak check will occur tomorrow.

 A leak check was performed on the module when it was in the conditioning station today. There were no external leaks found. When the coolant lines were check a small leak was found in the heat shield circuit. Base leak rate was 6.7 x 10^-9 atm cc /sec and rose to 4.1 x 10^-9 atm cc /sec quickly (~3 seconds) and remained there for the 2 minute test. The remaining lines had small responses as usual but the highest response was in the low 10^-8 atm cc /sec range. The pressures were recorded as 1.2X10^-6 T, 2.7 x 10^-6 T and 1.1 10^-5 T in the service cap, containment box, and secondary respectively. The module was then vented with argon which took ~1.5 hours, vessel was pressurized to ~ 1 psi. A panel was then removed to leak check the feed through stem of the heat shield pressure of the line was recorded to be 0.0 x 10^-4 T and a leak rate of 1.3 x 10^-8 atm cc/sec was achieved. The stem was sprayed and no response was found. Swipes of the were taken of the panel (150 counts) and the containment box (3000 counts). The panel was then returned and the vessel roughed out for the weekend, it will be vented and moved to the south hot cell on Monday where the VCR fittings will be checked again and then tightened.  

Today a leak check on TM1's external seals and the heat shield line was completed by David Wang. After 16 hours of the turbo pumps running on the conditioning station stations pressures were 3.6 x 10^-6 T, 1.2 x 10^-5 T, and 1.8 x 10^-6 T for the containment box, secondary vacuum, and service cap respectively. This is a significantly quicker pump down after the cross with small turbo pump was installed on the vacuum vessel. The base pressure of the leak testing cart was 0.0 x 10^-4 T and the leak rate was 1.2 x 10 x 10^-8 atm cc / sec. There was no response from the external test where the module was sprayed with helium. The heat shield line was pressurized with 80 psi helium which caused the leak rate to climb to a maximum of 2.5 10 ^-8 atm cc / sec but dropped to 1.9 x 10^-8 atm cc / sec and was stable there, the total test time was 2 minutes. This test was repeated another time and had similar results.  These results although showing a slight increase in the detected leak rate are withing acceptable and indicate that the module is leak tight. 

At 9:30 the HV check and conditioning started (~17 hours turbos on), the secondary vacuum, containment box and service cap had the following pressures in Torr respectively, 1.0 x 10^-5, 3.2 x 10^-6, 1.6 x 10^-6.  The voltage was steadily raised with virtually no current up to 28.5 kV which was achieved at 9:50. When raised to 30 kV the current increased significantly to ~300 uA and a large amount of sparking occurred. The voltage was dropped to 0 volts for 2 minutes and then was returned to 30 kV at 10:03, the current draw was around 200 uA and climbing. After a few sparks and time the current had dropped to 120 uA. This indicates that the module is still conditioning and matches what is observed by the control room when the module is in ITW. The module was deemed acceptable for this current run and was then vented with argon this took about 2 hours.

The module was then remotely moved from the conditioning station to ITW. When first attempting to transfer the controls to the remote control room they were not transferred and when testing the up command as per standard procedure the module dropped down slightly. David Wang went to lock out the target again and the controls were successfully transferred. A note of this was made in the log book. Apart from this the move went smoothly.