Thursday, October 31, 2019, 10:41: Cage removed. Tape put on the limit switches. Anode interlock bypassed.

Thursday, October 31, 2019, 10:42: Measuring voltage between F/T B and cable tray.

Thursday, October 31, 2019, 10:42: Readings match EPICS readback, i.e, 4 V readsback 3.7V and multimeter shows -3.816V

Thursday, October 31, 2019, 10:44: Probing from F/T B to J reads 0 V as expected. Anode is on common

Thursday, October 31, 2019, 10:45: Probing from F/T B to other F/T show 0V.

Thursday, October 31, 2019, 11:37: Current draw from the power supply matches the on neede for the 50 kOhm resistor.

Thursday, October 31, 2019, 13:20: After inspecting the interior, the 9 pin bracket was found not making full contact with the  baseplate (pic attached).

After pushing it and re doing the bolts conctact works.

Friday, November 01, 2019, 15:47: A symbiotic  peek seal assembly  was installed on the manipulator grip to verify the temperature at high voltage and high current.

Friday, November 01, 2019, 15:48: Three  thermocouples added for temperature readings.

Friday, November 01, 2019, 15:47: Roughing

Friday, November 01, 2019, 16:19: Turbos on.

Friday, November 01, 2019, 16:27: IG1 on.

Friday, November 01, 2019, 16:29: RGA on.

AS

Monday, November 04, 2019, 07:41: Waterlines opened. No response on RGA. Vacuum ok @ 3.97e-07T.

Monday, November 04, 2019, 07:44: Power / sources on.

Monday, November 04, 2019, 07:47: Auto-ramping TGHT to 300 A @ 2 A per min.

Monday, November 04, 2019, 10:57: Auto-ramping TGHT to 400 A @ 2 A per min.

FM

Monday, November 04, 2019, 12:11: Auto-ramping TGHT to 500 A @ 2 A per min.

Monday, November 04, 2019, 13:35: Auto-ramping TGHT to 600 A @ 2 A per min.

Monday, November 04, 2019, 14:48: Bias/EE/EZL @ 30/1.5/13 kV.

Monday, November 04, 2019, 15:03: Bias/EE/EZL @ 40/2.0/17 kV.

Monday, November 04, 2019, 15:04: Sparks observed after reaching 40 kV. TMS:TP6 down. Back down to 32 kV.

Monday, November 04, 2019, 15:04:  Bias to 40 kV. One spark only. Seems stable now.

Sparks occurred sparsely. Max time without a spark was 26 minutes.

Monday, November 04, 2019, 16:09: Bias/EE/EZL @ 30/1.5/13 kV.

Monday, November 04, 2019, 16:16: RGA restart.

AS

Tuesday, November 05, 2019, 08:30: RGA Restarted.

Tuesday, November 05, 2019, 08:32: Begin bringing up HV to 35 kV on BIAS.

Tuesday, November 05, 2019, 08:35: BIAS / EE / EZL @ 35 / 1.8 / 15 kV.

Tuesday, November 05, 2019, 08:55: No sparks after 20 minutes. Move up to 40 kV.

Tuesday, November 05, 2019, 08:59: BIAS / EE / EZL @ 40 / 2.0 / 20 kV.

Tuesday, November 05, 2019, 09:34: Audible Spark*. Restart TSG: CB1, VCB1, CBCx2. Reset & restart turbo pump. TMS:TP6. Appears on EZl cur.

Tuesday, November 05, 2019, 09:37: RGA off. Leave it off.

Tuesday, November 05, 2019, 09:38: Audible Spark* but not loud at all. Restart TSG: CB1, VCB1, CBCx2. Reset & restart turbo pump. TMS:TP6.

Tuesday, November 05, 2019, 10:00: BIAS / EE / EZL @ 35 / 1.8 / 17.5 kV.

Tuesday, November 05, 2019, 10:06: BIAS / EE / EZL @ 0 / 0 / 0 kV.

Tuesday, November 05, 2019, 10:07: Auto-cooling TGHT to 500 A @ 4 A per min.

Wednesday, November 13, 2019, 07:29: Turbo pumps & ion gauge off. RGA was already off.

Friday, November 15, 2019, 08:43: Venting.

Friday, November 01, 2019, 14:00: Nitrogen bottle installed. Purged waterlines HS / FS#5. Purge done in conjunction with SiC#38

4.8 Purity

35-40 PSI pressure.

Successfully purged the line after 5 minutes.

Friday, November 08, 2019, 14:16: Begin FS#5 waterline purge w/ Nitrogen. Purge done in conjunction with UC#30 HS & assy.

4.8 Purity

12-14 PSI line pressure.

2500 PSI bottle pressure.

Full stream for a minute or so, then purged lightly. Drops / mist outgoing.

Friday, November 08, 2019, 14:24: Line Pressure at 10-11 PSI, brought back up to 14 PSI.

2400 PSI bottle pressure. Water / mist outgoing still.

Friday, November 08, 2019, 14:31: No water appears on line with purge.

Approx 2350 PSI bottle pressure.

Line pressure increased to 40 PSI. No water appeared on the purge line.

Friday, November 08, 2019, 14:34: Purge complete. 14 PSI appears successful.

Friday, November 15, 2019, 09:35: Roughing.

Friday, November 15, 2019, 10:34: Turbo pumps on.

Wednesday, November 20, 2019, 09:19: Turbo pumps off. Ion gauge off.

Wednesday, November 20, 2019, 11:20: Roughing. U-Line removed from HS waterline. Blanks installed. Do not open HS waterline.

 Friday, November 22, 2019, 19:02: The new design for the PEEK irradiation will be tested.

Blinds were removed and a new LP-SIS assembly with a modify heatshield was installed. Three termocuples installed.

Friday, November 22, 2019, 19:04: Roughing 

Friday, November 22, 2019, 19:38: Turbos on

Friday, November 22, 2019, 19:46: TSGIG1 on

Monday, November 25, 2019, 15:43: Vacuum stable@ 5.73E-7T

Monday, November 25, 2019, 15:47: Waterlines open. No response on Vacuum

Monday, November 25, 2019, 15:51: RGA on.

Tuesday, November 26, 2019, 08:41: Vacuum stablet@ 5.2E-7T

 Tuesday, November 26, 2019, 15:04: Power on

Tuesday, November 26, 2019, 17:17: Auto-ramping  to 300A/150A on the TGHT/TBHT @ 6 A/min

Tuesday November 26, 2019 20:00: Thermocouple 3 gives signs to have a bad contact with the HS. "Luckily" it is the one attached to the HS itself. TH 1 and 2 show similar temperatures below 40degC at 500A. Ramping to 600A

 Tuesday November 26, 2019 20:46: 600A TH1 and 2 around 40degC slightly going down. Tomorrow it will be known the final steady-state temperature. The test shows tho that the temperature evolves similarly between the copper piece and the Peek assembly. Showing good contact.

FM

Wednesday, November 27, 2019, 13:47: Th1=35, Th2=34.8, Th3=19.6 C.

Wednesday, November 27, 2019, 13:49: Closing Farady cage to proceed with HV tests.

Wednesday, November 27, 2019, 13:56: HV on. Optics set.

Wednesday, November 27, 2019, 14:01: RGA off to protect it from potential sparks.

Wednesday, November 27, 2019, 14:18: Bias/EE/EZL to 30/1.5/13 kV.\

Wednesday, November 27, 2019, 14:25: Bias/EE/EZL to 40/2.0/17 kV.

Wednesday, November 27, 2019, 14:28: Audible spark on top @ 48kV

Wednesday, November 27, 2019, 14:29: Bias/EE/EZL to 50/2.5/22 kV.

Wednesday, November 27, 2019, 14:35: Spark noticed on striptool, not audible.

Wednesday, November 27, 2019, 14:36: Audible spark on top. not as loud as previous one.

Wednesday, November 27, 2019, 14:39: Spark noticed on striptool, not audible.

Wednesday, November 27, 2019, 14:39: Moving to 55kV to condition for 10 minutes then coming down to 50kV

Wednesday, November 27, 2019, 14:42: Audible spark at 59kV. TP6 and CB knocked out.

Wednesday, November 27, 2019, 14:46: Bias/EE/EZL to 55/2.8/24 kV.

Wednesday, November 27, 2019, 14:50: Audible spark. TP6 , CB, optics knocked out..

Wednesday, November 27, 2019, 14:51: Audible spark. TP6 , CB, optics knocked out.

Wednesday, November 27, 2019, 15:01: Thermal incident (see elog 773)

Wednesday, November 27, 2019, 15:03: All HV to 0 V

Wednesday, November 27, 2019, 16:01: Resuming HV test. Max HV=50kV.

Wednesday, November 27, 2019, 16:10: Bias/EE/EZL to 30/1.5/13 kV.

Wednesday, November 27, 2019, 16:38: Bias/EE/EZL to 40/2.0/17 kV.

Wednesday, November 27, 2019, 16:50: Spark

Wednesday, November 27, 2019, 17:01: Spark

Wednesday, November 27, 2019, 17:09: Spark to EZL. Instabilitiesafter this, TBHT insulator glowing blue

Wednesday, November 27, 2019, 18:11:  Bias/EE/EZL to 0 kV.

Wednesday, November 27, 2019, 18:11: Auto-cooling at 10 A/min (2.5A/15s).

Wednesday, November 27, 2019, 19:13: IG1 off. Turbos off.

Wednesday, November 27, 2019, 20:35: Venting. Tighten the 4 bolts from the heatshields as they were not done before the tests. Removing thermocouples as they might be causing some sparks.

Wednesday, November 27, 2019, 20:42: Roughing

Thursday, November 28, 2019, 07:00: Turbo pumps on.

Thursday, November 28, 2019, 07:06: Ion gauge on.

Wednesday, November 27, 2019, 15:31: During HV tests, bias was around 55kV when a spark occur and almost immediately the controller for TP6 made a noticeable noise and smoke started to come out of it.

Control room notified about the smoke.

Both turbo and IG6 were not affected.

Eddie was contacted for assessment, and a new controller (from OATIS)  was installed and tested. Turbo turned on without any issue.

Wednesday, November 27, 2019, 16:00: Resuming HV tests

Friday: Test to validate Ferran's assembly. The plan is to ramp up to operating current, apply high voltage, and possibly extract beam.

Turbos on. IG1. Power on.

Monday, December 02, 2019, 15:59: Auto-ramp to 230/600 A for TBHT/TGHT @ 2A/min and 4A/min  (0.5A/15 s 1 A/15s.)

Tuesday, December 03, 2019, 15:30: Sources on.

Tuesday, December 03, 2019, 15:41: Bias/EZL/EE @ 30/13/1.5 kV

 Bias/EE/EZL to 40/2.0/17 kV.

Bias/EE/EZL to 50/2.5/22 kV.

Bias/EE/EZL to 50/2.6/22.5 kV.

Spark. Inaudible

Tuesday, December 03, 2019, 17:26: Bias/EZL/EE to 0kV.

Tuesday, December 03, 2019, 17:26: Auto-cooling  @ 2A/min

Wednesday, December 04, 2019, 09:37: Power/sources off

Friday, December 20, 2019, 07:58: Turn off ion gauges. Shut off turbo pumps TP6, TP2, TP1A, & TP1B. Close backing valves.

Friday, December 20, 2019, 08:06: PV1 & PV2 off. RP1 & RP2 off.

Monday, January 06, 2020, 09:35: Restarting TS. RP1 & RP2 on. (BIAS PS upgraded / Note: https://elog.triumf.ca/TIS/Test-Stand/776 ). No HV as yet.

Monday, January 06, 2020, 09:37: Turbo pumps (TP6, TP2, TP1A, & TP1B) on.

Monday, January 06, 2020, 09:42: Ion gauges on (IG1 & IG6).

Monday, January 20, 2020, 08:17: Ion gauge. Turbos pumps off.

Monday, January 20, 2020, 10:26: Venting.

A new power supply was installed today by John Chow. Due to differences in pin configuration of the controls, a change to the cabling is required. Contacted controls (Julie) for support.

Tuesday, January 21, 2020, 13:42: The RGA was unable to connect. Typically connects on COM4, however it did not register. RGA Offline.

Brought in a separate RGA. Was able to connect & see the 2nd RGA ID on COM4. Removed 2nd RGA.

We likely need to replace / repair our communication chip again.

Wednesday, January 22, 2020, 13:21: The chip was replaced and the RGA reinstalled, however, the RGA is still no connecting on COM4.

Thursday, January 23, 2020, 16:05: Restarting vacuum and TPs

Anders Mjos wrote:

A new power supply was installed today by John Chow. Due to differences in pin configuration of the controls, a change to the cabling is required. Contacted controls (Julie) for support.

 Ray from controls has updated EPICS and changed the cabling today. The power supply is operational.

NOTE: Current limit will need to be set in EPICS. Default value should be 0.1 mA for now.

Tuesday, February 11, 2020, 14:27: UC#32 HS removed.

Tuesday, February 11, 2020, 14:27: Roughing.

Wednesday, February 12, 2020, 09:05: Venting.

Using a broken LP-FEBIAD oven for out gassing. Tentative UC#31*

Wednesday, February 12, 2020, 10:57: Roughing.

Wednesday, February 12, 2020, 11:30: Turbo pumps on.

Thursday, February 13, 2020, 07:19: Waterlines opened. Vacuum ok @ 6.91e-07T.

Thursday, February 13, 2020, 07:22: Power / Sources on. TGHT only.

Thursday, February 13, 2020, 07:25: Auto-ramping TGHT @ 2A per min to 580 A.

Friday, February 14, 2020, 14:03: Auto-cooling @ 1 A per min.

Thursday, February 20, 2020, 07:33: PS, sources off, locked out.

Thursday, February 20, 2020, 07:34: Turbo pumps & IG1 off.

Thursday, February 20, 2020, 07:35: Waterlines purged. Nitrogen Bottle around 2050 PSI.

Thursday, February 20, 2020, 09:22: Venting.

Thursday, February 27, 2020, 07:10: Swapped out an old brass fitting on the supply line going into FS#3 - Line K.

Replaced w/ SS fitting for interchangeability w/ other lines in case a bypass is needed.

Wednesday, March 04, 2020, 17:13: EPICS page indicated a sucesful scan but data was empty.

Wednesday, March 04, 2020, 17:13: Power suppply didn't respond to the voltage sweep

Wednesday, March 04, 2020, 17:14: Problem most likely similar to elog entry 531.

Wednesday, March 04, 2020, 17:14: Keiko contacted for a soft reboot.

Wednesday, March 04, 2020, 17:14: Emittance power supply now  responds.

The ISAC was left with the turbo pumps and water supplies running. Just the power supplies off. Monday, March, 23, 2020.

Check daily

Thursday, March 26, 2020, 13:25: Vacuum ok at 3.2e-07T. All status ok.

Friday, March 27, 2020, 09:00: Checked via epics. There appears to have been a trip. 

Vacuum at 7.953T . The trip looks to have occurred around midnight. (See attached*)

Friday, March 27, 2020, 11:15: MCR shut down supply / return on DI water supply to be on the safe side.

Friday, March 27, 2020, 11:20: Monitor. Control room has my cell number now as well as it's on my TRIUMF profile. Beam line side ok.

Monday, March 30, 2020, 06:26: Vacuum @ 8.583T.

Tuesday, March 31, 2020, 10:03: Vacuum @ 8.016T. 

Wednesday, April 01, 2020, 11:51: Vacuum @ 8.205T.

Thursday, April 02, 2020, 11:41: Vacuum @ 8.709T.

Friday, April 03, 2020, 05:05: Vacuum @ 9.213T. 

Tuesday, April 07, 2020, 10:46: Vacuum @ 11.922T. 

Tuesday, April 28, 2020, 11:11: Venting. 

Aaron Schmidt wrote:

The ISAC was left with the turbo pumps and water supplies running. Just the power supplies off. Monday, March, 23, 2020. Check daily Thursday, March 26, 2020, 13:25: Vacuum ok at 3.2e-07T. All status ok. Friday, March 27, 2020, 09:00: Checked via epics. There appears to have been a trip.  Vacuum at 7.953T . The trip looks to have occurred around midnight. (See attached*) Friday, March 27, 2020, 11:15: MCR shut down supply / return on DI water supply to be on the safe side. Friday, March 27, 2020, 11:20: Monitor. Control room has my cell number now as well as it's on my TRIUMF profile. Beam line side ok. Monday, March 30, 2020, 06:26: Vacuum @ 8.583T. Tuesday, March 31, 2020, 10:03: Vacuum @ 8.016T.  Wednesday, April 01, 2020, 11:51: Vacuum @ 8.205T. Thursday, April 02, 2020, 11:41: Vacuum @ 8.709T. Friday, April 03, 2020, 05:05: Vacuum @ 9.213T.  Tuesday, April 07, 2020, 10:46: Vacuum @ 11.922T.

Tuesday, April 07, 2020, 10:53:

Tried pumping down chamber with roughing pump. Looks like there is water in the system. Will leave it as is for now.

Tuesday, April 28, 2020, 12:30

Removed SiC#40 target and pumped down with HS lines blanked off. Used recycled SST gaskets.

Tuesday, April 28, 2020, 13:00

Still problem with water in the system. CG1 at about 25 Torr. Purging all water lines and pumping down again.

 https://elog.triumf.ca/TIS/Test-Stand/791

https://elog.triumf.ca/TIS/Test-Stand/792

Tuesday, May 19, 2020, 06:01: Venting. 

Troubleshoot / Leak Check ISAC TS.

Tuesday, May 19, 2020, 06:35: Quite a bit of condensation was found inside the TS. Most lines had water on them.

Tuesday, May 19, 2020, 07:09: Wiped out the interior. Running a fan inside to aid in the drying.

Tuesday, May 19, 2020, 08:20:

Opened lines FS#2,3,4. No visual leaks detected.

Installed previously used/outgassed HS (Ferran's tests). Replaced all the bolts.

Roughing.

Tuesday, May 19, 2020, 08:32: Multiple attempts made to rough. Doors not sealing?

Tuesday, May 19, 2020, 08:58: IT FINALLY SEALED!!! (Assistance was provided on the doors)

Tuesday, May 19, 2020, 09:02: BV1B Open.

Tuesday, May 19, 2020, 10:54: Vacuum @ 15.339 T.

Tuesday, May 19, 2020, 10:59: FS#2 opened.

Tuesday, May 19, 2020, 11:02: Vacuum @ 15.069 T.

Tuesday, May 19, 2020, 11:03: FS#3 opened.

Tuesday, May 19, 2020, 11:06; Vacuum @ 15.069 T

Tuesday, May 19, 2020, 11:07: FS#4 opened.

Tuesday, May 19, 2020, 11:10: Vacuum @ 15.069 T.

Tuesday, May 19, 2020, 11:11: FS#5 Opened.

Tuesday, May 19, 2020, 11:13: Vacuum @ 15.069 T.

Tuesday, May 19, 2020, 11:30: Close & purge cooling lines. Observe Vacuum.

Left open overnight. Ran the fan on it this morning.

All water lines into the TS closed. FS# 2,3,4,5, & 8.

Wednesday, May 20, 2020, 08:35: Roughing.

Wednesday, May 20, 2020, 08:50: BV1B open. Vacuum at 8 T and dropping.

Wednesday, May 20, 2020, 10:12: Vacuum at 2.635 T.

Wednesday, May 20, 2020, 10:14: FS#2 opened.

Wednesday, May 20, 2020, 10:17: Vacuum @  2.646 T.

Wednesday, May 20, 2020, 10:19: FS#3 opened.

Wednesday, May 20, 2020, 10:24: Vacuum @ 2.764  T

Wednesday, May 20, 2020, 10:25: FS#4 opened.

Gradual increase is noted, but no obvious spike.

Wednesday, May 20, 2020, 10:28: Vacuum @  2.816 T.

Wednesday, May 20, 2020, 10:32: Vacuum @ 3.606 T.

Starting to spike.

Wednesday, May 20, 2020, 10:36: Closed supply / return. Purged. Closed the lines Vacuum @  4.173 T.

Wednesday, May 20, 2020, 10:54: Vacuum @ 3.984 T.

Wednesday, May 20, 2020, 10:58: FS#2 opened.

Wednesday, May 20, 2020, 11:10: Vacuum @ 3.858 T.

Wednesday, May 20, 2020, 11:11: FS#3 opened. Vacuum spiking 4.3T +

Wednesday, May 20, 2020, 11:15: Closed supply / return. Purged. Closed the lines Vacuum @  4.614 T.

Wednesday, May 20, 2020, 11:47: Venting.

Wednesday, May 20, 2020, 13:12: Significant leak discovered on FS#3. Pressurized the lines to full pressure with water and waited 15 minutes. Small drops seen pushing out from the water block.

Removed old O-ring (Appeared to have a warp/bulge, very faint) Replaced with Sn C-Seal "Small Package" MIL-DTL-117H-TII C-E S-I / MIL-PRF-131K C-II.

T= 0.095"

D= 0.424"

Wednesday, May 20, 2020, 14:02: Roughing.

Wednesday, May 20, 2020, 14:08: BV1B open.

Wednesday, May 20, 2020, 15:28: Vacuum @ 1.242 T

Wednesday, May 20, 2020, 15:29: Open FS#3.

Wednesday, May 20, 2020, 15:31: Close FS#3 supply / return. Purged. Closed the lines Vacuum @  2.462 T.

Wednesday, May 20, 2020, 15:42: Start venting to 200 T. 

Removed Right coil line on FS#3 and blanked it off (G) (H).

Monday, May 25, 2020, 14:00: Roughing.

Monday, May 25, 2020, 14:02: BV1B open.

Monday, May 25, 2020, 15:16: Turbo pumps on.

Monday, May 25, 2020, 15:25: Ion gauge on.

Wednesday, May 27, 2020, 10:28: Ion gauge & turbo pumps off. 

FS#(G)(H) right coil line -  Lower G water block replaced leak checked / cleaned.

Line re-installed.

Wednesday, May 27, 2020, 12:56: Roughing.

Wednesday, May 27, 2020, 13:39: Turbo pumps on.

Wednesday, May 27, 2020, 13:47: Ion gauge on.

Monday, June 01, 2020, 06:47: Vacuum @ 5.12e-06T

Monday, June 01, 2020, 06:50: FS#3 opened. Vacuum @ 5.12e-06T.

Monday, June 01, 2020, 06:57: FS#2 opened. Vacuum @ 5.12e-06T.

Monday, June 01, 2020, 07:01: FS#4 opened. Vacuum @ 5.12e-06T.

Monday, June 01, 2020, 07:04: FS#5 opened. Vacuum @ 5.10e-06T.

Monday, June 01, 2020, 07:12: PS on

Monday, June 01, 2020, 07:15: FS#8 opened. Vacuum @ 5.03e-06T.

Monday, June 01, 2020, 07:16: Sources on.

Monday, June 01, 2020, 07:18: Auto-ramping TGHT / TBHT to 300 / 150 A @ 2 A per min. Vacuum limits adjusted:

7.000e-06 Vacuum ok, increment when less than this value.

8.000e-06 Vacuum exceeds, the last increment on TGHT / TBHT is backed off.

Monday, June 01, 2020, 09:17: Halt, adjust. Continue Auto-ramping TGHT / TBHT to 350 / 200 A @ 2 A per min.Vacuum @5.19 e-06T

Monday, June 01, 2020, 10:37: Auto-ramping TGHT / TBHT to 400 / 200 A @ 2 A per min.Vacuum @ 6.29e-06T.

Monday, June 01, 2020, 11:05: Auto-ramping TGHT / TBHT to 450 / 200 A @ 2 A per min.Vacuum @ 6.70e-06T.

Monday, June 01, 2020, 12:18: Tripped* restarted* Auto-ramping TGHT / TBHT to 350 / 150 A @ 4 A per min.Vacuum @ 6.70e-06T.

Tripped as the TGHT / TBHT "good vac" interlock is at 7.30e-06T.

Monday, June 01, 2020, 17:10: Lowered TGHT to 325A to avoid a trip and continue outgassing. Vacuum @ 7.00e-06T.

Tuesday, June 02, 2020, 06:06: Manually tap TGHT up to 350 A.

Tuesday, June 02, 2020, 06:39: Manually tap TGHT up to 375 A.

Wednesday, June 03, 2020, 09:37: Manually tap TGHT up to 400 A. Vacuum, @ 6.68e-06T.

Wednesday, June 03, 2020, 09:44: Manually tap TGHT up to 400 A. Vacuum, @ 6.90e-06T.

Wednesday, June 03, 2020, 10:45: Tripped* restarted* Auto-ramping TGHT / TBHT to 400 / 200 A @ 4 A per min.Vacuum @ 5.53e-06T.

Friday, June 05, 2020, 06:19: Manually tap TGHT up to 425 A. 

Tuesday, June 09, 2020, 19:57: Auto-Cooling from 475 A to 0 A @ 1 A per min. 

Wednesday, June 10, 2020, 06:32: PS off. Ion Gauge off. Turbo pumps off.