Fritsch Pulverisette 5 Ball Mill status:

Friday, December 16, 2022, 07:35 

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

Fritsch Pulverisette 5 Ball Mill status:

Tuesday, July 12, 2022, 11:06:

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

Thursday, April 07, 2022, 12:00: While preparing to remove LaC, the roughing pump (1) stopped operating. It didn't appear to seize, just no longer powered up. Multiple outlets attempted. Vacuum group contacted & they brought us a replacement.

Thursday, April 07, 2022, 12:21: Pump was replaced. (Pump 2).

Friday, April 22, 2022, 11:30: The roughing pump failed (Pump 2) & shut-off. Appears to have seized. Oil?

Was replaced by Vacuum Group in the afternoon with 3rd pump.

Monday, April 25, 2022, 09:13: Roughing pump failed & shut-off. (Pump 3). The oil was completely drawn out of it & into the ventilation line (To EF14).

Fault: 14843

Friday, June 01, 2022, 12:00: RP changed with a new IDP15 roughing pump. Fixed. 

 Thursday, April 07, 2022, 11:55:

It was noticed on Wednesday that the glove box was not regulating pressure properly & the H2O sensor was reading (Very unstable) anywhere from 30 ppm to 0.25%. The box was isolated & checked for leaks. Unable to vent properly except manually.

One of the solenoid valves for venting the glove box fails to open. Will need replacement. The filter also appears to be saturated. Regeneration is required once the solenoid valve is replaced. Prior to replacing the valves, the LaC must be safely removed. This process is being initiated. (John W. & Darwin O.)

Tomislav and John Chow tested the spare bias supply located in the rack of the electrical services room. This is a FUG HCN 1400 M-60000, serial 11590-01-01, PO TR131986 but when it was installed online we found it could not go above about 40kV. It was replaced but not tested until now. Tomislav says:

"We started testing the FuG this morning, in manual mode it is possible to reach 60 kV, 59.75 according to the display and with the load we have 1.6 mA. From the DC HV point of view, at least in manual mode no problem.

When we looked at the HV through a 1000:1 voltage divider in the oscilloscope there is a situation, the coupling in graphs 4 and 5, attached, is AC, and it was taken at 55 kV. The 200 mV scale represents 200 V because of the divider. There is a strong noise of 200 Vpp at 55 kV, it can be interpreted as ripple of 0.36%, we usually ask in FuGs 10^-5 or 0.001%. Also there are random peaks of 1 V in the divider (1000V in the output) that indicate a possible failure of the PWM circuit that generates the high voltage.

Because of issues like these Friedhelm replaced the old ITW power supply, these instabilities caused problems in the experiments, so I am not sure if it is necessary to continue testing this PS. We can only do a remote test that I do not expect to give different results from what we have now, maybe we will find an issue and it does not go beyond 40 kV, and we can check long term stability, the DC value should remain very constant for at least 8 hrs."

 Tuesday, December 07, 2021, 09:23:

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

    Fritsch Pulverisette 5 Ball Mill status:

Tuesday, August 03, 2021, 10:33 

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

Tuesday, February 09, 2021, 06:53: Evaporator 2 off. Evaporator 1 ok, Fume hoods ok. Ar glove box off. Ready for planned power outage.

Should last from 0800 to1200.

Tuesday, February 09, 2021, 11:30: Confirmation there was no EF14/15 trip. Ar Glove box on. Evaporator 2 back on.

   Fritsch Pulverisette 5 Ball Mill status:

Monday, July 13, 2020, 11:22: 

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

 Odd noises reported. Darwin & Marla. "Like a rock caught in a fan"

AS -  Re-installed bolts to run. Note, balancing feet underneath were uneven. Especially the front right foot was roughly 3/8" out of position. No jars installed.

Ref: Document-42673 - Commissioning Plan - Planetary Mill Pulverisette 5. Use as a guideline. 

Wednesday, September 16, 2020, 10:39: Run @ 50 RPM / 1 min. Operation sounds ok. Balanced. 

Wednesday, September 16, 2020, 10:41: Run @ 100 RPM / 1 min. Operation sounds ok. Balanced & quiet. 

Wednesday, September 16, 2020, 10:43: Run @ 150 RPM / 1 min. Operation sounds ok. Balanced & quiet. 

Wednesday, September 16, 2020, 10:45: Run @ 200 RPM / 1 min. Operation sounds ok. Balanced & quiet. 

Wednesday, September 16, 2020, 10:48: Run @ 250 RPM / 1 min. Operation sounds ok. Balanced, but there is a "hum" that starts around 230 RPM. Disappears around 270 RPM

Wednesday, September 16, 2020, 10:50: Run @ 300 & up to 350 RPM / 1 min. Operation sounds ok. Balanced & quiet. No "hum"  

Wednesday, September 16, 2020, 10:57: Run @ 400 RPM / 1 min (Max RPM). Operation sounds ok. Balanced & quiet. 

Setup Jars w/ safe-lock assembly.

Jar A: 6349 g

Jar B: 6368 g

Wednesday, September 16, 2020, 11:25: Run @ 100 RPM / 1 min. Balanced & quiet. Tighten safe lock.

Wednesday, September 16, 2020, 11:27: Run @ 200 RPM / 1 min. Balanced. Tighten safe lock.

Wednesday, September 16, 2020, 11:33: Run @ 300 RPM / 1 min. Operation sounds ok. Balanced. Tighten safe lock.

Wednesday, September 16, 2020, 11:37: Run @ 400 RPM / 1 min (Max RPM). Balanced. Tighten safe lock.

Wednesday, September 16, 2020, 11:52: Review w/ Darwin & Marla. Operation sounds normal. 

Note* When performing maintenance. Check the balance / feet positions. Confirm there are no loose screws as well. 

Wednesday, September 16, 2020, 14:53: Checked and re-checked with the back panel removed. Note, as the jars were loaded with graphite, a crackling sound did occur. Further testing w/ & w/o. It may be the jars with the loaded materials. Will test with water in the jars. Panel re-installed. Ran again @ 100 & 400 RPM / 1 min (Max RPM). Operation sounds ok. Balanced & quiet. - AS

Wednesday, August 05, 2020, 19:34

On Friday July 31 a regeneration of the glovebox was started.

Initial 02 = 130 ppm

Initial H20= 1.9 ppm

The Argon gas level was 1200 psi

The regeneration was finished on August 01, 2020. 

The 02 level (not accurate as stated in the manual) was p 137 ppm.

The H20 level was 8.9 ppm and not considered accurate as the system needs time to reach equilibrium.

The final 02 level was 7.0 ppm and recorded on August 05, 2020.  The final moisture levels were recorded to be 1.9 ppm.

The regeneration was successful and it was concluded that the catalyst is active enough so that it does not need to be replaced.

 Thursday, August 06, 2020, 15:47

02 = 6.75 ppm

H20 = 1.9 ppm

  Fritsch Pulverisette 5 Ball Mill status:

Monday, July 13, 2020, 11:22: 

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

 Temp was noted to be high @ 50 deg C.

Adjusted the regulators to 35 deg C. Ran both the eye-wash station & shower. Waited 20 minutes. Ran them again and tuned.

Monday, July 13, 2020, 10:00: Complete. 

Anders Mjos wrote:

Checked in on the labs and other equipment yesterday. Everything looks ok, including the glove box Ar supply. Recorded O2 and H2O values in the log book.

 Checked in on labs again on Wednesday April 22nd. See attached for glove box details

Checked in on the labs and other equipment yesterday. Everything looks ok, including the glove box Ar supply. Recorded O2 and H2O values in the log book.

 Monday, January 13, 2020, 10:30: Leak noted in HC area by Chad to ISAC Ops.

Monday, January 13, 2020, 13:32: The water leak was found to be coming from the sinks in the ISAC B1 Cold Lab. Target cleaning was occurring at the time as well. Soap / detergent smell was noted in the water that had dripped down to the area in front of the South Hot Cell in ISAC B2.

Rob Shanks entered a fault report. 

Running the main cold lab tap or the fume hood tap did not yield a leak, however, dumping a large quantity of water into the 2 main sinks in the ISAC B1 cold lab causes the leak to become apparent. It's likely the large volume of water causes a brief back flow in the pipe in ISAC B2 which then leaks until the flow recovers.

The pipe joint with the leak has been circled in the attached photo. 

Anders & I both witnessed the leak to confirm the source. 

 Fritsch Pulverisette 5 Ball Mill status:

Wednesday, December 18, 2019, 13:48: 

SN 05.6010 / 03005: Inspected. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

See attached.

 Friday, September 27, 2019, 13:54: 

There is a pin hole water leak coming from the DIW supply pipe going into the ISAC B1 hot lab - rm 06. It appears to be on the solder / joint. The leak is very small at this point. Mostly just a drip. 

Fault 12701

 Fritsch Pulverisette 5 Ball Mill status:

SN 05.6010 / 03005: Inspected July 5, 2019. Ok

SN 05.6000 / 00365: Currently disassembled / out of service. (Under Process status until repaired, re-assembled, inspected, & tested)

See attached.

 Wednesday, April 24, 2019, 10:00:

The sink to the rear of the cold lab beneath the paper towel dispenser has sprung a leak. The leak is most apparent when the hot water tap is used. It appears right at the back, behind the sink basin where the pipes meet the counter top to faucet.

Entered under fault report 12204 

Currently 'Tagged' with bags over the handles to discourage use..

Thursday, July 04, 2019, 14:12

Fixed (Darwin)

Purchased o-rings and fixed in May 2019