Friday, February 23, 2018, 08:50

Friday, February 23, 2018, 08:53: BIAS / EZL / EE @ 62.5 / 29 / -1 kV

Friday, February 23, 2018, 08:56: Spark* Turbo pump TMS:TP6 restarted,

Friday, February 23, 2018, 09:13: Bias sitting at 61kV for about 15mins now. Still corona discharges from the area of the EE, but the area of the duct seems fine.

1. Al corona shield installed over end of the HV duct to suppress discharges from the sharp edge of the duct.

2. Some moving and shortening of cables to keep them from running close to different voltages.

3. Changed the angle bracket on the 3M bias-EE resistor chain to a plate, same position.

4. Moved the 164K EE resistor chain to sit flat against feedthrough K.

5. Moved the bias-EE spark gap to sit flat against the back of feedthrough K, required tapping a hole in the back of the copper clamp.

6. Cap and top of rack vacuumed.

7. Piece of shielding removed from top of HV rack

New parts installed. Corona Shield, brackets, and board/spark gap orientation.

Wednesday, February 28, 2018, 11:48: Power on. Ready to test

Wednesday, February 28, 2018, 14:00: BIAS / EZL / EE @ 30 / 13 / 1.5 kV

Wednesday, February 28, 2018, 14:06: BIAS / EZL / EE @ 40 / 17 / 2.0 kV

Wednesday, February 28, 2018, 14:11: BIAS / EZL / EE @ 55 / 24 / 2.8 kV

Wednesday, February 28, 2018, 14:16: BIAS / EZL / EE @ 60 / 28 / 3.1 kV

Wednesday, February 28, 2018, 14:18: BIAS / EZL / EE @ 62 / 30 / 3.2 kV

Wednesday, February 28, 2018, 14:21: BIAS / EZL / EE @ 63 / 31 / 3.2 kV

Wednesday, February 28, 2018, 14:26: BIAS / EZL / EE @ 65 / 32.5 / 3.2 kV

Wednesday, February 28, 2018, 14:32: BIAS / EZL / EE @ 66 / 33 / 3.3 kV

Wednesday, February 28, 2018, 14:35: BIAS / EZL / EE @ 66.5 / 33.5 / 3.3 kV ***2 sparks***

Wednesday, February 28, 2018, 14:37: BIAS / EZL / EE @ 66 / 33 / 3.3 kV

Wednesday, February 28, 2018, 14:41: BIAS / EZL / EE @ 66.5 / 33 / 3.3 kV

Wednesday, February 28, 2018, 14:44: BIAS / EZL / EE @ 67 / 33 / 3.3 kV

Wednesday, February 28, 2018, 14:47: BIAS / EZL / EE @ 68 / 33 / 3.3 kV

Wednesday, February 28, 2018, 14:49: BIAS / EZL / EE @ 68.75 / 33 / 3.3 kV ***Spark***

Wednesday, February 28, 2018, 14:51: BIAS / EZL / EE @ 68 / 33 / 3.3 kV

Wednesday, February 28, 2018, 14:57: *** 2 sparks ***

The BIAS was pushed to 69 kV however the resulting sparks shut down the communications with the test stand computer.

RPM0B was put into a continuous running cycle and had to be shut off manually.

The voltage was brought back down remotely via a separate computer. Turbo pump TMS : TP2 was also restarted.

Turning up bias, no corona discharge at 60kV but a spark at 61.5kV bias, 31kV EZL, -800V EE

Thursday, March 01, 2018, 10:26: BIAS / EZL / EE @ 65 / 32.5 / 3.2 kV

Thursday, March 01, 2018, 10:32: Spark* Knocked out turbo pump TMS : TP6 (Restarted) Communications restarted. RPM0A restarted.

Thursday, March 01, 2018, 10:44: BIAS / EZL / EE @ 61 / 30.5 / 3.1 kV

I have removed the resistor/varistor combinations that go between the poles of the target and tube heaters, and between those two supplies. I tested all the components to make sure they were still working after the sparks - for the record the varistors clamp at 23V, not 33V as implied by the schematic.

Tuesday, March 06, 2018, 10:48  BIAS/EE/EZL = 59.5/-1000/29.5  There was some kind of spark, the current on the bias supply went up to 400uA ( normally at 40 +/- 5 ) and the vacuum jumped a bit ( but still in the 10e-7 range ) but I didn't hear anything. It took out TP6 again. See first attachment.

Tuesday, March 06, 2018, 10:54  BIAS/EE/EZL = 60/-1/30

...

Problems

...

Tuesday, March 06, 2018, 12:00 BIAS/EE/EZL = 60/-1.5/29

Tuesday, March 06, 2018, 12:37 BIAS/EE/EZL = 62/-1.5/30

Tuesday, March 06, 2018, 14:11 BIAS/EE/EZL = 64/-1.5/31 No sparks but occasional ticking sounds from either the EZL or behind where the EE is... see second screenshot

Tuesday, March 06, 2018, 14:40 BIAS/EE/EZL = 65/-1.5/33

Test stand has been sitting at 65kV for about an hour now. Some small increases in bias power supply current but nothing significant (40uA). Some small sparks on the way to this voltage, and I ramped up very slowly. The corona discharges seen before seem to be related to the resistor/varistor combos since there are none now that I have removed them. Will redesign and reinstall.

The resistor/varistor combinations across the target + / -, tube + / - and target- / tube + have been remade and moved to the back of the power supplies to limit the corona discharges at higher voltages. Pictures attached.

First attachment: BIAS/EE/EZL = 63.25/-1.5/31 So far no issues.

Second attachment: BIAS/EE/EZL = 64.25/-1.5/32 Slight spark - bias current jumped from 40uA to 88uA and vacuum jumped from 2e-7 to 2e-6... Steerers went off.

Third attachment: BIAS/EE/EZL = 65/-1.5/32  Some small signs of instability in the bias power supply

Fourth attachment :  BIAS/EE/EZL = 65/-1.5/32  Been running for 20 mins now. More variation on the bias current output than at lower voltages but not too bad

Monday, March 12, 2018, 09:45: Gas lines opened. Leak rate set. Vacuum @ 1.16e-06T

Monday, March 12, 2018, 10:00: RGA on

Monday, March 12, 2018, 10:07: RGA off. Manually shut off power as well

Pressure:

Ramping up:

• Second attachment - bias at 50kV
• Third attachment - bias at 60kV
• Fourth attachment - bias at 65kV

Pressure has been slowly falling since we started this test - now down to 8.7e-7

Spark after 10 mins, see attachment 5. Very slight vacuum jump (8.5e-7 -> 1.2e-6) and bias current jump (36uA -> 113uA). Tripped TP6 and the steerers, as usual. Bias current read back more erratic afterwards (see sixth attachment).

System has been stable for 20mins, though current on bias is still more erratic than before the spark. Increasing He leak rate from 7 to 7.06 to bring vacuum back up to 2e-6 (see attachment 7). No effect from increased pressure.

Tuesday, March 13, 2018, 05:52: Power off.

Tuesday, March 13, 2018, 05:56: Waterlines purged

Tuesday, March 13, 2018, 05:57: Ion gauge, Turbos off.

Started with Anode at 25V and coil at 0A, bias at 30kV. (attachment 1)

Ramped coil to 60A (0.4V) (attachment 2)

Ramped bias to 51kV, but then TP6 turned off and there was a momentary 0.2A decrease in the TGHT current. No spike in BIAS current seen, maybe TP6 is turning off for another reason? (attachment 3)

At 57kV, a small spark, heard outside the vacuum, sounding like it comes somewhere near the blue racks which hold the power supplies. It has sounded like that to me before. Did not turn anything off but bias current spiked from 110uA to 280uA. (attachment 4)

At 57.5kV another spark, taking down TP1B and TP6, as well as the CB1 steerers and TPS:Q1/2. TGHT current dropped momentarily from 581A to 240A, or so says EPICS. Maybe just a communications effect? Voltage for TBHT also dropped but nothing seen on TBHT. Coil current and voltage also showed small effects. (attachment 5)

After 10mins at 60kV, spike in bias current with slight spike in EE current but no other effects.

After 20mins everything has been stable, will turn the bias back to 30kV. As I turn the bias voltage down, the EE current ramps up. No change to EE voltage... (attachment 6)

Wednesday, April 11, 2018, 10:19: Roughing

New assembly & target. Same silver bolts.

Tuesday, April 17, 2018, 09:56: Roughing.

Tuesday, April 17, 2018, 10:57: Vacuum not coming down. @ 1.514T . Backing valves have been closed.

See* elog entry for roughing pump issue 04/17/2018

Wednesday, April 18, 2018, 08:57: Turbo pumps on.

Friday, April 20, 2018, 13:45: Power/sources on. RGA restarted

Friday, April 20, 2018, 13:46: IV4 Opened.

Friday, April 20, 2018, 13:50: Auto ramping TGHT / TBHT to 580 / 200 A @ 2A per min.

Friday, April 20, 2018, 13:56: BIAS / EZL / EE @ 30 / 13 / 1.5 kV . Spark @ Bias 28 kV knocked out RGA.

Friday, April 20, 2018, 13:59: RGA restarted.

Friday, April 20, 2018, 14:03: Optics on. Set

Friday, April 20, 2018, 14:40: Auto cooling TGHT / TBHT from 97 A @ 4A per min. Odd noise on (BIAS*) PS

Friday, April 20, 2018, 14:44: BIAS / EZL / EE @ 0 / 0 / 0 kV . Sources being turned off except TBHT and TGHT.

Monday, April 23, 2018, 10:46: FEBIAD TEST halted. See BIAS PS issue.

Tuesday, April 24, 2018, 10:46: Power off.

Tuesday, April 24, 2018, 10:48: RGA off.

Tuesday, April 24, 2018, 10:49: Ion gauge TSG:IG1 & Evap side turbos off,

Tuesday, April 24, 2018, 10:50: Ion gauge TMS:IG6 & beam side turbos off.

Tuesday, April 24, 2018, 10:54: Waterlines purged.

Tuesday, August 14, 2018, 10:55: Auto ramping TGHT @ 6 A per min to 40 A.

Tuesday, August 14, 2018, 11:03: TGHT @ 40 A. Display @ 0.198 V. PS @ 0.18 V. Multimeter @ 033 mV.

Tuesday, August 14, 2018, 11:09: Auto ramping TGHT @ 6 A per min to 80 A.

Tuesday, August 14, 2018, 11:16: TGHT @ 80.1 A. Display @ 0.405 V. PS @ 0.38 V. Multimeter @ 084 mV.

Tuesday, August 14, 2018, 11:18: Auto ramping TGHT @ 6 A per min to 120 A.

Tuesday, August 14, 2018, 11:28: TGHT @ 120.1 A. Display @ 0.718 V. PS @ 0.69 V. Multimeter @ 187 mV.

Tuesday, August 14, 2018, 11:35: TGHT @ 120.1 A. Display @ 0.745 V. PS @ 0.72 V. Multimeter @ 201 mV.

Tuesday, August 14, 2018, 11:36: Auto ramping TGHT @ 6 A per min to 160 A.

Tuesday, August 14, 2018, 11:44: TGHT @ 160.3 A. Display @ 1.131 V. PS @ 1.11 V. Multimeter @ 340 mV.

Tuesday, August 14, 2018, 11:54 TGHT @ 160.3 A. Display @ 1.148 V. PS @ 1.12 V. Multimeter @ 347 mV.

Tuesday, August 14, 2018, 11:54: Auto ramping TGHT @ 6 A per min to 200 A.

Tuesday, August 14, 2018, 12:01: TGHT @ 200.4 A. Display @ 1.565 V. PS @ 1.54 V. Multimeter @ 502 mV.

Tuesday, August 14, 2018, 12:47 TGHT @ 200.4 A. Display @ 1.582 V. PS @ 1.56 V. Multimeter @ 508 mV.

Tuesday, August 14, 2018, 12:47: Auto ramping TGHT @ 6 A per min to 230A.

Tuesday, August 14, 2018, 12:54: TGHT @ 230.6 A. Display @ 1.924 V. PS @ 1.89 V. Multimeter @ 635 mV.

Tuesday, August 14, 2018, 13:00: TGHT @ 230.6 A. Display @ 1.929 V. PS @ 1.90 V. Multimeter @ 638 mV.

Tuesday, August 14, 2018, 13:01: Auto ramping TGHT @ 6 A per min to 240A.

Tuesday, August 14, 2018, 13:05: TGHT @ 240.6 A. Display @ 2.046 V. PS @ 2.02 V. Multimeter @ 682 mV.

Tuesday, August 14, 2018, 13:10: TGHT @ 240.6 A. Display @ 2.049 V. PS @ 2.02 V. Multimeter @ 683 mV.

Tuesday, August 14, 2018, 13:11 Auto ramping TGHT @ 6 A per min to 280A.

Tuesday, August 14, 2018, 13:19: TGHT @ 280.7 A. Display @ 2.537 V. PS @ 2.51 V. Multimeter @ 869 mV.

Tuesday, August 14, 2018, 13:24: TGHT @ 280.7 A. Display @ 2.540 V. PS @ 2.51 V. Multimeter @ 871 mV.

Tuesday, August 14, 2018, 13:25 Auto ramping TGHT @ 6 A per min to 300A.

Tuesday, August 14, 2018, 13:30: TGHT @ 300.8 A. Display @ 2.794 V. PS @ 2.76 V. Multimeter @ 968 mV.

Tuesday, August 14, 2018, 13:34: TGHT @ 300.8 A. Display @ 2.796 V. PS @ 2.77 V. Multimeter @ 970 mV.

Tuesday, August 14, 2018, 13:36: Auto ramping TGHT @ 6 A per min to 354A.

Tuesday, August 14, 2018, 13:46: TGHT @ 354.9 A. Display @ 3.509 V. PS @ 3.48 V. Multimeter @ 1248 mV.

Tuesday, August 14, 2018, 13:51: TGHT @ 354.9 A. Display @ 3.512 V. PS @ 3.48 V. Multimeter @ 1249 mV.

Tuesday, August 14, 2018, 13:52 Auto ramping TGHT @ 6 A per min to 360A.

Tuesday, August 14, 2018, 13:55: TGHT @ 360.9 A. Display @ 3.592 V. PS @ 3.56 V. Multimeter @ 1281 mV.

Tuesday, August 14, 2018, 13:56 Auto ramping TGHT @ 6 A per min to 370A.

Tuesday, August 14, 2018, 14:00 TGHT @ 370.8 A. Display @ 3.729 V. PS @ 3.70 V. Multimeter @ 1336 mV.

Tuesday, August 14, 2018, 14:03: Auto ramping TGHT @ 6 A per min to 400A.

Tuesday, August 14, 2018, 14:10 TGHT @ 401.0 A. Display @ 4.149 V. PS @ 4.12 V. Multimeter @ 1501 mV.

Tuesday, August 14, 2018, 14:15: Auto ramping TGHT @ 6 A per min to 410A.

Tuesday, August 14, 2018, 14:19: TGHT @ 411.0 A. Display @ 4.291 V. PS @ 4.26 V. Multimeter @ 1558 mV.

Tuesday, August 14, 2018, 14:23: Auto ramping TGHT @ 6 A per min to 427A.

Tuesday, August 14, 2018, 14:28: TGHT @ 428.0 A. Display @ 4.537 V. PS @ 4.51 V. Multimeter @ 1657 mV.

Tuesday, August 14, 2018, 14:32:  Auto ramping TGHT @ 6 A per min to 451A.

Tuesday, August 14, 2018, 14:38: TGHT @ 452.2 A. Display @ 4.891 V. PS @ 4.86 V. Multimeter @ 1805 mV.

Tuesday, August 14, 2018, 14:42: Auto ramping TGHT @ 6 A per min to 460A.

Tuesday, August 14, 2018, 14:47:  TGHT @ 461.2 A. Display @ 5.026 V. PS @ 4.99 V. Multimeter @ 1862 mV.

Tuesday, August 14, 2018, 14:52: Auto ramping TGHT @ 6 A per min to 475A.

Tuesday, August 14, 2018, 14:55: TGHT @ 476.3 A. Display @ 5.250 V. PS @ 5.22 V. Multimeter @ 1962 mV.

Tuesday, August 14, 2018, 14:58: Auto ramping TGHT @ 6 A per min to 500A.

Tuesday, August 14, 2018, 15:04: TGHT @ 501.4 A. Display @ 5.629 V. PS @ 5.60 V. Multimeter @ 2130 mV.

Tuesday, August 14, 2018, 15:08:  Auto ramping TGHT @ 6 A per min to 510A.

Tuesday, August 14, 2018, 15:11: TGHT @ 511.5 A. Display @ 5.783 V. PS @ 5.75 V. Multimeter @ 2190 mV.

Tuesday, August 14, 2018, 15:13:  Auto ramping TGHT @ 6 A per min to 520A.

Tuesday, August 14, 2018, 15:17: TGHT @ 521.5 A. Display @ 5.937 V. PS @ 5.91 V. Multimeter @ 2260 mV.

Wednesday, August 15, 2018, 09:29: TGHT @ 521.5 A. Display @ 5.956 V. PS @ 5.92 V. Multimeter @ 2260 mV.

Wednesday, August 15, 2018, 09:34: Auto ramping TGHT @ 6 A per min to 550A.

Wednesday, August 15, 2018, 09:39: TGHT @ 551.5 A. Display @ 6.422 V. PS @ 6.39 V. Multimeter @ 2480 mV.

Wednesday, August 15, 2018, 09:42: Auto ramping TGHT @ 6 A per min to 560A.

Wednesday, August 15, 2018, 09:44: TGHT @ 561.5 A. Display @ 6.579 V. PS @ 6.55 V. Multimeter @ 2550 mV.

Wednesday, August 15, 2018, 09:46: Auto ramping TGHT @ 6 A per min to 580A.

Wednesday, August 15, 2018, 09:53: TGHT @ 581.7 A. Display @ 6.896 V. PS @ 6.86 V. Multimeter @ 2680 mV.

Wednesday, August 15, 2018, 09:55: Auto ramping TGHT @ 6 A per min to 600A.

Wednesday, August 15, 2018, 09:59: TGHT @ 600.0 A. Display @ 7.214 V. PS @ 7.18 V. Multimeter @ 2820 mV.

Wednesday, August 15, 2018, 10:07: Auto cooling TGHT @ 6 A per min to 580A.

Wednesday, August 15, 2018, 10:10: TGHT @ 581.7 A. Display @ 6.896 V. PS @ 6.86 V. Multimeter @ 2680 mV.

Wednesday, August 15, 2018, 10:12: Auto cooling TGHT @ 6 A per min to 560A.

Wednesday, August 15, 2018, 10:17: TGHT @ 561.6 A. Display @ 6.584 V. PS @ 6.55 V. Multimeter @ 2550 mV.

Wednesday, August 15, 2018, 10:18: Auto cooling TGHT @ 6 A per min to 550A.

Wednesday, August 15, 2018, 10:23: TGHT @ 551.5 A. Display @ 6.427 V. PS @ 6.39 V. Multimeter @ 2480 mV.

Wednesday, August 15, 2018, 10:24: Auto cooling TGHT @ 6 A per min to 520A.

Wednesday, August 15, 2018, 10:33: TGHT @ 521.5 A. Display @ 5.963 V. PS @ 5.93 V. Multimeter @ 2290 mV.

Wednesday, August 15, 2018, 10:35 Auto cooling TGHT @ 6 A per min to 510A.

Wednesday, August 15, 2018, 10:39: TGHT @ 511.5 A. Display @ 5.814 V. PS @ 5.78 V. Multimeter @ 2200 mV.

Wednesday, August 15, 2018, 10:40: Auto cooling TGHT @ 6 A per min to 500A.

Wednesday, August 15, 2018, 10:45 TGHT @ 501.4 A. Display @ 5.665 V. PS @ 5.63 V. Multimeter @ 2140 mV.

Wednesday, August 15, 2018, 10:45: Auto cooling TGHT @ 6 A per min to 475A.

Wednesday, August 15, 2018, 10:52: TGHT @ 476.3 A. Display @ 5.292 V. PS @ 5.26 V. Multimeter @ 1997 mV.

Wednesday, August 15, 2018, 10:53: Auto cooling TGHT @ 6 A per min to 460A.

Wednesday, August 15, 2018, 10:59: TGHT @ 461.2 A. Display @ 5.070 V. PS @ 5.04 V. Multimeter @ 1879 mV.

Wednesday, August 15, 2018, 11:00:  Auto cooling TGHT @ 6 A per min to 451A.

Wednesday, August 15, 2018, 11:05: TGHT @ 452.2 A. Display @ 4.935 V. PS @ 4.90 V. Multimeter @ 1821 mV.

Wednesday, August 15, 2018, 11:06: Auto cooling TGHT @ 6 A per min to 427A.

Wednesday, August 15, 2018, 11:15: TGHT @ 428.0 A. Display @ 4.584 V. PS @ 4.55 V. Multimeter @ 1674 mV.

Wednesday, August 15, 2018, 11:16: Auto cooling TGHT @ 6 A per min to 410A.

Wednesday, August 15, 2018, 11:20: TGHT @ 411.0 A. Display @ 4.337 V. PS @ 4.31 V. Multimeter @ 1576 mV.

Wednesday, August 15, 2018, 11:21: Auto cooling TGHT @ 6 A per min to 400A.

Wednesday, August 15, 2018, 11:25: TGHT @ 401.0 A. Display @ 4.195 V. PS @ 4.17 V. Multimeter @ 1519 mV.

Wednesday, August 15, 2018, 13:13: TGHT @ 401.0 A. Display @ 4.193 V. PS @ 4.16 V. Multimeter @ 1516 mV.

Wednesday, August 15, 2018, 13:14: Auto cooling TGHT @ 6 A per min to 370A.

Wednesday, August 15, 2018, 13:23:  TGHT @ 370.8 A. Display @ 3.773 V. PS @ 3.74 V. Multimeter @ 1350 mV.

Wednesday, August 15, 2018, 13:24 Auto cooling TGHT @ 6 A per min to 360A.

Wednesday, August 15, 2018, 13:30: TGHT @ 360.9 A. Display @ 3.634 V. PS @ 3.61 V. Multimeter @ 1296 mV.

Wednesday, August 15, 2018, 13:31: Auto cooling TGHT @ 6 A per min to 354A.

Wednesday, August 15, 2018, 13:35: TGHT @ 354.9 A. Display @ 3.553 V. PS @ 3.52 V. Multimeter @ 1263 mV.

Wednesday, August 15, 2018, 13:36 Auto cooling TGHT @ 6 A per min to 300A.

Wednesday, August 15, 2018, 13:46: TGHT @ 300.8 A. Display @ 2.830 V. PS @ 2.80 V. Multimeter @ 0984 mV.

Wednesday, August 15, 2018, 13:51: TGHT @ 300.8 A. Display @ 2.828 V. PS @ 2.80 V. Multimeter @ 0981 mV.

Wednesday, August 15, 2018, 13:52: Auto cooling TGHT @ 6 A per min to 280A.

Wednesday, August 15, 2018, 13:58: TGHT @ 280.7 A. Display @ 2.569 V. PS @ 2.54 V. Multimeter @ 0882 mV.

Wednesday, August 15, 2018, 13:59: Auto cooling TGHT @ 6 A per min to 240A.

Wednesday, August 15, 2018, 14:07: TGHT @ 240.6 A. Display @ 2.073 V. PS @ 2.05 V. Multimeter @ 0685 mV.

Wednesday, August 15, 2018, 14:11: TGHT @ 240.6 A. Display @ 2.071 V. PS @ 2.04 V. Multimeter @ 0692 mV.

Wednesday, August 15, 2018, 14:12: Auto cooling TGHT @ 6 A per min to 230A.

Wednesday, August 15, 2018, 14:18: TGHT @ 230.6 A. Display @ 1.951 V. PS @ 1.92 V. Multimeter @ 0647 mV.

Wednesday, August 15, 2018, 14:19: Auto cooling TGHT @ 6 A per min to 200A.

Wednesday, August 15, 2018, 14:25: TGHT @ 200.4 A. Display @ 1.612 V. PS @ 1.59 V. Multimeter @ 0522 mV.

Wednesday, August 15, 2018, 14:31: TGHT @ 200.4 A. Display @ 1.604 V. PS @ 1.58 V. Multimeter @ 0517 mV.

Wednesday, August 15, 2018, 14:31: Auto cooling TGHT @ 6 A per min to 160A.

Wednesday, August 15, 2018, 14:39: TGHT @ 160.3 A. Display @ 1.179 V. PS @ 1.16 V. Multimeter @ 0364 mV.

Wednesday, August 15, 2018, 14:44: TGHT @ 160.3 A. Display @ 1.170 V. PS @ 1.14 V. Multimeter @ 0356 mV.

Wednesday, August 15, 2018, 14:44: Auto cooling TGHT @ 6 A per min to 120A.

Wednesday, August 15, 2018, 14:52: TGHT @ 120.1 A. Display @ 0.794 V. PS @ 0.77 V. Multimeter @ 0226 mV.

Wednesday, August 15, 2018, 14:56: TGHT @ 120.3 A. Display @ 0.779 V. PS @ 0.76 V. Multimeter @ 0218 mV.

Wednesday, August 15, 2018, 14:56: Auto cooling TGHT @ 6 A per min to 80A.

Wednesday, August 15, 2018, 15:04: TGHT @ 80.1 A. Display @ 0.466 V. PS @ 0.45 V. Multimeter @ 0117 mV.

Wednesday, August 15, 2018, 15:09: TGHT @ 80.1 A. Display @ 0.454 V. PS @ 0.43 V. Multimeter @ 0109 mV.

Wednesday, August 15, 2018, 15:13: TGHT @ 80.1 A. Display @ 0.447 V. PS @ 0.42 V. Multimeter @ 0105 mV.

Wednesday, August 15, 2018, 15:14: Auto cooling TGHT @ 6 A per min to 40A.

Wednesday, August 15, 2018, 15:22: TGHT @ 40.0 A. Display @ 0.217 V. PS @ 0.19 V. Multimeter @ 0041 mV.

Wednesday, August 15, 2018, 15:27: TGHT @ 40.0 A. Display @ 0.210 V. PS @ 0.19 V. Multimeter @ 0039 mV.

Wednesday, August 15, 2018, 15:28: Auto cooling TGHT @ 6 A per min to 0A.

------------------------------------

Thursday, August 16, 2018, 13:41: Auto ramping TGHT @ 6 A per min to 40A. Auto ramping TBHT @ 6 A per min to 40A.

Thursday, August 16, 2018, 13:52 TGHT @ 40.0 A. Display @ 0.200 V. PS @ 0.18 V. Multimeter @ 0116 mV. TBHT @ 38.4 A. Display @ 0.195 V. PS @ 0.18 V.

Thursday, August 16, 2018, 13:53 Auto ramping TGHT @ 6 A per min to 80A. Auto ramping TBHT @ 6 A per min to 80A.

Thursday, August 16, 2018, 14:02: TGHT @ 80.1 A. Display @ 0.405 V. PS @ 0.38 V. Multimeter @ 0279 mV. TBHT @ 78.5 A. Display @ 0.391 V. PS @ 0.38 V.

Thursday, August 16, 2018, 14:13: TGHT @ 80.1 A. Display @ 0.437 V. PS @ 0.41 V. Multimeter @ 0304 mV. TBHT @ 78.5 A. Display @ 0.410 V. PS @ 0.40 V.

Thursday, August 16, 2018, 14:22: TGHT @ 80.1 A. Display @ 0.444 V. PS @ 0.42 V. Multimeter @ 0313 mV. TBHT @ 78.5 A. Display @ 0.418 V. PS @ 0.40 V.

Thursday, August 16, 2018, 14:22: Auto ramping TGHT @ 6 A per min to 120A. Auto ramping TBHT @ 6 A per min to 120A.

Thursday, August 16, 2018, 14:31: TGHT @ 120.1 A. Display @ 0.735 V. PS @ 0.72 V. Multimeter @ 0610 mV. TBHT @ 118.5 A. Display @ 0.711 V. PS @ 0.71 V.

Thursday, August 16, 2018, 14:44: TGHT @ 120.1 A. Display @ 0.794 V. PS @ 0.77 V. Multimeter @ 0674 mV. TBHT @ 118.5 A. Display @ 0.767 V. PS @ 0.75 V.

Thursday, August 16, 2018, 14:45: Auto ramping TGHT @ 6 A per min to 160A. Auto ramping TBHT @ 6 A per min to 160A.

Thursday, August 16, 2018, 14:53: TGHT @ 160.3 A. Display @ 1.165 V. PS @ 1.15 V. Multimeter @ 0927 mV. TBHT @ 158.7 A. Display @ 1.197 V. PS @ 1.19 V.

Thursday, August 16, 2018, 15:01: TGHT @ 160.3 A. Display @ 1.197 V. PS @ 1.17 V. Multimeter @ 0946 mV. TBHT @ 158.7 A. Display @ 1.221 V. PS @ 1.21 V.

Thursday, August 16, 2018, 15:02: Auto ramping TGHT @ 6 A per min to 200A. Auto ramping TBHT @ 6 A per min to 200A.

Thursday, August 16, 2018, 15:10: TGHT @ 200.4 A. Display @ 1.617 V. PS @ 1.60 V. Multimeter @ 1382 mV. TBHT @ 198.8 A. Display @ 1.678 V. PS @ 1.68 V.

Thursday, August 16, 2018, 15:17: TGHT @ 200.4 A. Display @ 1.634 V. PS @ 1.61 V. Multimeter @ 1390 mV. TBHT @ 198.7 A. Display @ 1.690 V. PS @ 1.69 V.

Thursday, August 16, 2018, 15:18: Auto ramping TGHT @ 6 A per min to 230A. Auto ramping TBHT @ 6 A per min to 230A.

Thursday, August 16, 2018, 15:25: TGHT @ 230.5 A. Display @ 1.976 V. PS @ 1.95 V. Multimeter @ 1751 mV. TBHT @ 228.9 A. Display @ 2.071 V. PS @ 2.07 V.

Thursday, August 16, 2018, 15:34: TGHT @ 230.6 A. Display @ 1.985 V. PS @ 1.96 V. Multimeter @ 1754 mV. TBHT @ 228.9 A. Display @ 2.081 V. PS @ 2.08 V.

Thursday, August 16, 2018, 15:35: Auto ramping TGHT @ 6 A per min to 240A.

Thursday, August 16, 2018, 15:42: TGHT @ 240.6 A. Display @ 2.100 V. PS @ 2.07 V. Multimeter @ 1801 mV. TBHT @ 228.9 A. Display @ 2.083 V. PS @ 2.08 V.

Thursday, August 16, 2018, 15:44: Auto ramping TGHT @ 6 A per min to 280A.

Thursday, August 16, 2018, 15:52: TGHT @ 280.6 A. Display @ 2.581 V. PS @ 2.56 V. Multimeter @ 1996 mV. TBHT @ 228.9 A. Display @ 2.095 V. PS @ 2.09 V.

Thursday, August 16, 2018, 16:00: TGHT @ 280.7 A. Display @ 2.586 V. PS @ 2.56 V. Multimeter @ 1998 mV. TBHT @ 228.9 A. Display @ 2.098 V. PS @ 2.10 V.

Thursday, August 16, 2018, 16:01: Auto ramping TGHT @ 6 A per min to 300A.

Thursday, August 16, 2018, 16:06: TGHT @ 300.8 A. Display @ 2.835 V. PS @ 2.81 V. Multimeter @ 2090 mV. TBHT @ 228.9 A. Display @ 2.103 V. PS @ 2.10 V.

Thursday, August 16, 2018, 16:11: TGHT @ 300.8 A. Display @ 2.840 V. PS @ 2.81 V. Multimeter @ 2090 mV. TBHT @ 228.9 A. Display @ 2.105 V. PS @ 2.10 V.

Thursday, August 16, 2018, 16:11: Auto ramping TGHT @ 6 A per min to 354A.

Thursday, August 16, 2018, 16:22: TGHT @ 354.9 A. Display @ 3.546 V. PS @ 3.52 V. Multimeter @ 2390 mV. TBHT @ 228.9 A. Display @ 2.122 V. PS @ 2.12 V.

Thursday, August 16, 2018, 16:26: TGHT @ 354.9 A. Display @ 3.551 V. PS @ 3.52 V. Multimeter @ 2390 mV. TBHT @ 228.9 A. Display @ 2.125 V. PS @ 2.12 V.

Thursday, August 16, 2018, 16:26: Auto ramping TGHT @ 6 A per min to 360A.

Thursday, August 16, 2018, 16:32: TGHT @ 360.9 A. Display @ 3.634 V. PS @ 3.60 V. Multimeter @ 2420 mV. TBHT @ 228.9 A. Display @ 2.127 V. PS @ 2.12 V.

Thursday, August 16, 2018, 16:33: Auto ramping TGHT @ 6 A per min to 370A.

Thursday, August 16, 2018, 16:40: TGHT @ 370.8 A. Display @ 3.768 V. PS @ 3.74 V. Multimeter @ 2480 mV. TBHT @ 228.9 A. Display @ 2.129 V. PS @ 2.13 V.

Thursday, August 16, 2018, 16:41: Auto ramping TGHT @ 6 A per min to 400A.

Thursday, August 16, 2018, 16:47: TGHT @ 401.0 A. Display @ 4.183 V. PS @ 4.15 V. Multimeter @ 2650 mV. TBHT @ 228.9 A. Display @ 2.139 V. PS @ 2.14 V.

--------------------------------------------------------------

Friday, August 17, 2018, 09:12: TGHT @ 400.9 A. Display @ 4.190 V. PS @ 4.16 V. Multimeter @ 2650 mV. TBHT @ 228.9 A. Display @ 2.144 V. PS @ 2.14 V.

Friday, August 17, 2018, 09:13: Auto ramping TGHT @ 6 A per min to 410A.

Friday, August 17, 2018, 09:16: TGHT @ 410.8 A. Display @ 4.327 V. PS @ 4.30 V. Multimeter @ 2710 mV. TBHT @ 228.9 A. Display @ 2.147 V. PS @ 2.15 V.

Friday, August 17, 2018, 09:19: TGHT @ 410.8 A. Display @ 4.332 V. PS @ 4.30 V. Multimeter @ 2720 mV. TBHT @ 228.9 A. Display @ 2.149 V. PS @ 2.15 V.

Friday, August 17, 2018, 09:20: Auto ramping TGHT @ 6 A per min to 427A.

Friday, August 17, 2018, 09:24: TGHT @ 428.0 A. Display @ 4.571 V. PS @ 4.55 V. Multimeter @ 2820 mV. TBHT @ 228.9 A. Display @ 2.154 V. PS @ 2.15 V.

Friday, August 17, 2018, 09:28: TGHT @ 428.0 A. Display @ 4.574 V. PS @ 4.55 V. Multimeter @ 2820 mV. TBHT @ 228.9 A. Display @ 2.156 V. PS @ 2.15 V.

Friday, August 17, 2018, 09:29: Auto ramping TGHT @ 6 A per min to 451A.

Friday, August 17, 2018, 09:37: TGHT @ 452.0 A. Display @ 4.923 V. PS @ 4.89 V. Multimeter @ 2970 mV. TBHT @ 228.9 A. Display @ 2.166 V. PS @ 2.17 V.

Friday, August 17, 2018, 09:38: Auto ramping TGHT @ 6 A per min to 460A.

Friday, August 17, 2018, 09:44: TGHT @ 461.2 A. Display @ 5.057 V. PS @ 5.03 V. Multimeter @ 3020 mV. TBHT @ 228.9 A. Display @ 2.168 V. PS @ 2.17 V.

Friday, August 17, 2018, 09:45: Auto ramping TGHT @ 6 A per min to 475A.

Friday, August 17, 2018, 09:51: TGHT @ 476.2 A. Display @ 5.280 V. PS @ 5.25 V. Multimeter @ 3120 mV. TBHT @ 228.9 A. Display @ 2.176 V. PS @ 2.18 V.

Friday, August 17, 2018, 09:52: Auto ramping TGHT @ 6 A per min to 500A.

Friday, August 17, 2018, 10:01: TGHT @ 501.4 A. Display @ 5.656 V. PS @ 5.63 V. Multimeter @ 3280 mV. TBHT @ 228.9 A. Display @ 2.188 V. PS @ 2.19 V.

Friday, August 17, 2018, 10:02: Auto ramping TGHT @ 6 A per min to 510A.

Friday, August 17, 2018, 10:08: TGHT @ 511.4 A. Display @ 5.810 V. PS @ 5.78 V. Multimeter @ 3350 mV. TBHT @ 228.9 A. Display @ 2.193 V. PS @ 2.19 V.

Friday, August 17, 2018, 10:09: Auto ramping TGHT @ 6 A per min to 520A.

Friday, August 17, 2018, 10:14: TGHT @ 521.3 A. Display @ 5.961 V. PS @ 5.93 V. Multimeter @ 3420 mV. TBHT @ 228.9 A. Display @ 2.203 V. PS @ 2.20 V.

Friday, August 17, 2018, 10:16: Auto ramping TGHT @ 6 A per min to 550A.

Friday, August 17, 2018, 10:24: TGHT @ 551.5 A. Display @ 6.425 V. PS @ 6.39 V. Multimeter @ 3630 mV. TBHT @ 228.9 A. Display @ 2.217 V. PS @ 2.22 V.

Friday, August 17, 2018, 10:25: Auto ramping TGHT @ 6 A per min to 560A.

Friday, August 17, 2018, 10:32: TGHT @ 561.5 A. Display @ 6.584 V. PS @ 6.55 V. Multimeter @ 3690 mV. TBHT @ 228.9 A. Display @ 2.222 V. PS @ 2.22 V.

Friday, August 17, 2018, 10:32: Auto ramping TGHT @ 6 A per min to 580A.

Friday, August 17, 2018, 10:40: TGHT @ 581.7 A. Display @ 6.899 V. PS @ 6.87 V. Multimeter @ 3830 mV. TBHT @ 228.9 A. Display @ 2.232 V. PS @ 2.23 V.

Friday, August 17, 2018, 10:41: Auto ramping TGHT @ 6 A per min to 600A.

Friday, August 17, 2018, 10:47: TGHT @ 600.0 A. Display @ 7.214 V. PS @ 7.18 V. Multimeter @ 3970 mV. TBHT @ 228.9 A. Display @ 2.239 V. PS @ 2.24 V.

Friday, August 17, 2018, 10:56: TGHT @ 600.0 A. Display @ 7.214 V. PS @ 7.18 V. Multimeter @ 3970 mV. TBHT @ 228.9 A. Display @ 2.242 V. PS @ 2.24 V.

Friday, August 17, 2018, 10:58: Auto cooling TGHT @ 6 A per min to 580A.

Friday, August 17, 2018, 11:09: TGHT @ 581.7 A. Display @ 6.901 V. PS @ 6.87 V. Multimeter @ 3830 mV. TBHT @ 228.9 A. Display @ 2.234 V. PS @ 2.23 V.

Friday, August 17, 2018, 11:09: Auto cooling TGHT @ 6 A per min to 560A.

Friday, August 17, 2018, 11:19: TGHT @ 561.5 A. Display @ 6.586 V. PS @ 6.55 V. Multimeter @ 3700 mV. TBHT @ 228.9 A. Display @ 2.225 V. PS @ 2.22 V.

Friday, August 17, 2018, 11:20: Auto cooling TGHT @ 6 A per min to 550A.

Friday, August 17, 2018, 11:25: TGHT @ 551.5 A. Display @ 6.432 V. PS @ 6.40 V. Multimeter @ 3630 mV. TBHT @ 228.9 A. Display @ 2.220 V. PS @ 2.22 V.

Friday, August 17, 2018, 11:26: Auto cooling TGHT @ 6 A per min to 520A.

Friday, August 17, 2018, 11:35: TGHT @ 521.3 A. Display @ 5.976 V. PS @ 5.94 V. Multimeter @ 3430 mV. TBHT @ 228.9 A. Display @ 2.208 V. PS @ 2.21 V.

Friday, August 17, 2018, 11:36: Auto cooling TGHT @ 6 A per min to 510A.

Friday, August 17, 2018, 11:41: TGHT @ 511.4 A. Display @ 5.827 V. PS @ 5.80 V. Multimeter @ 3370 mV. TBHT @ 228.9 A. Display @ 2.203 V. PS @ 2.20 V.

Friday, August 17, 2018, 11:42: Auto cooling TGHT @ 6 A per min to 500A.

Friday, August 17, 2018, 11:48: TGHT @ 501.4 A. Display @ 5.678 V. PS @ 5.65 V. Multimeter @ 3300 mV. TBHT @ 228.9 A. Display @ 2.198 V. PS @ 2.20 V.

Friday, August 17, 2018, 11:49: Auto cooling TGHT @ 6 A per min to 475A.

Friday, August 17, 2018, 11:55: TGHT @ 476.2 A. Display @ 5.314 V. PS @ 5.28 V. Multimeter @ 3140 mV. TBHT @ 228.9 A. Display @ 2.190 V. PS @ 2.19 V.

Friday, August 17, 2018, 12:59: TGHT @ 476.2 A. Display @ 5.309 V. PS @ 5.28 V. Multimeter @ 3140 mV. TBHT @ 228.9 A. Display @ 2.188 V. PS @ 2.19 V.

Friday, August 17, 2018, 13:00: Auto cooling TGHT @ 6 A per min to 460A.

Friday, August 17, 2018, 13:08: TGHT @ 461.2 A. Display @ 5.092 V. PS @ 5.06 V. Multimeter @ 3050 mV. TBHT @ 228.9 A. Display @ 2.183 V. PS @ 2.18 V.

Friday, August 17, 2018, 13:09: Auto cooling TGHT @ 6 A per min to 451A.

Friday, August 17, 2018, 13:16: TGHT @ 452.2 A. Display @ 4.960 V. PS @ 4.93 V. Multimeter @ 2990 mV. TBHT @ 228.9 A. Display @ 2.173 V. PS @ 2.17 V.

Friday, August 17, 2018, 13:17: Auto cooling TGHT @ 6 A per min to 427A.

Friday, August 17, 2018, 13:26: TGHT @ 428.0 A. Display @ 4.608 V. PS @ 4.58 V. Multimeter @ 2830 mV. TBHT @ 228.9 A. Display @ 2.159 V. PS @ 2.16 V.

Friday, August 17, 2018, 13:27: Auto cooling TGHT @ 6 A per min to 410A.

Friday, August 17, 2018, 13:34: TGHT @ 411.0 A. Display @ 4.364 V. PS @ 4.33 V. Multimeter @ 2730 mV. TBHT @ 228.9 A. Display @ 2.151 V. PS @ 2.15 V.

Friday, August 17, 2018, 13:36: Auto cooling TGHT @ 6 A per min to 400A.

Friday, August 17, 2018, 13:41: TGHT @ 400.9 A. Display @ 4.220 V. PS @ 4.19 V. Multimeter @ 2670 mV. TBHT @ 228.9 A. Display @ 2.149 V. PS @ 2.15 V.

Friday, August 17, 2018, 13:42: Auto cooling TGHT @ 6 A per min to 370A.

Friday, August 17, 2018, 13:52: TGHT @ 370.8 A. Display @ 3.797 V. PS @ 3.77 V. Multimeter @ 2490 mV. TBHT @ 228.9 A. Display @ 2.137 V. PS @ 2.14 V.

Friday, August 17, 2018, 13:53: Auto cooling TGHT @ 6 A per min to 360A.

Friday, August 17, 2018, 14:01: TGHT @ 360.9 A. Display @ 3.661 V. PS @ 3.63 V. Multimeter @ 2430 mV. TBHT @ 228.9 A. Display @ 2.132 V. PS @ 2.13 V.

Friday, August 17, 2018, 14:02: Auto cooling TGHT @ 6 A per min to 354A.

Friday, August 17, 2018, 14:05: TGHT @ 354.9 A. Display @ 3.580 V. PS @ 3.55 V. Multimeter @ 2400 mV. TBHT @ 228.9 A. Display @ 2.129 V. PS @ 2.13 V.

Friday, August 17, 2018, 14:07: Auto cooling TGHT @ 6 A per min to 300A.

Friday, August 17, 2018, 14:17: TGHT @ 300.8 A. Display @ 2.869 V. PS @ 2.84 V. Multimeter @ 2110 mV. TBHT @ 228.9 A. Display @ 2.112 V. PS @ 2.11 V.

Friday, August 17, 2018, 14:22: TGHT @ 300.8 A. Display @ 2.862 V. PS @ 2.83 V. Multimeter @ 2100 mV. TBHT @ 228.9 A. Display @ 2.110 V. PS @ 2.11 V.

Friday, August 17, 2018, 14:22: Auto cooling TGHT @ 6 A per min to 280A.

Friday, August 17, 2018, 14:30: TGHT @ 280.7 A. Display @ 2.606 V. PS @ 2.58 V. Multimeter @ 2000 mV. TBHT @ 228.9 A. Display @ 2.103 V. PS @ 2.10 V

.Friday, August 17, 2018, 14:22: Auto cooling TGHT @ 6 A per min to 240A.

Friday, August 17, 2018, 14:56: TGHT @ 240.6 A. Display @ 2.081 V. PS @ 2.09 V. Multimeter @ 1798 mV. TBHT @ 228.9 A. Display @ 2.081 V. PS @ 2.08 V

Friday, August 17, 2018, 14:58: Auto cooling TGHT @ 6 A per min to 230A.

Friday, August 17, 2018, 15:05: TGHT @ 230.5 A. Display @ 1.998 V. PS @ 1.97 V. Multimeter @ 1750 mV. TBHT @ 228.9 A. Display @ 2.078 V. PS @ 2.08 V

------------------------------------------------------------------------------

Sunday, August 19, 2018, 12:44: TGHT @ 230.5 A. Display @ 1.998 V. PS @ 1.97 V. Multimeter @ 1748 mV. TBHT @ 228.9 A. Display @ 2.078 V. PS @ 2.08 V

Sunday, August 19, 2018, 12:45: Auto cooling TGHT @ 6 A per min to 200A.

Sunday, August 19, 2018, 12:51: TGHT @ 200.4 A. Display @ 1.661 V. PS @ 1.64 V. Multimeter @ 1617 mV. TBHT @ 228.9 A. Display @ 2.071 V. PS @ 2.07 V

Sunday, August 19, 2018, 12:56: TGHT @ 200.4 A. Display @ 1.658 V. PS @ 1.63 V. Multimeter @ 1614 mV. TBHT @ 228.9 A. Display @ 2.068 V. PS @ 2.07 V

Sunday, August 19, 2018, 12:59: Auto cooling TGHT @ 6 A per min to 160A.

Sunday, August 19, 2018, 13:06: TGHT @ 160.3 A. Display @ 1.245 V. PS @ 1.22 V. Multimeter @ 1452 mV. TBHT @ 228.9 A. Display @ 2.061 V. PS @ 2.06 V

Sunday, August 19, 2018, 13:11: TGHT @ 160.3 A. Display @ 1.236 V. PS @ 1.21 V. Multimeter @ 1449 mV. TBHT @ 228.9 A. Display @ 2.056 V. PS @ 2.06 V

Sunday, August 19, 2018, 13:11: Auto cooling TGHT @ 6 A per min to 120A.

Sunday, August 19, 2018, 13:20: TGHT @ 120.1 A. Display @ 0.867 V. PS @ 0.84 V. Multimeter @ 1311 mV. TBHT @ 228.9 A. Display @ 2.049 V. PS @ 2.05 V

Sunday, August 19, 2018, 13:24: TGHT @ 120.1 A. Display @ 0.857 V. PS @ 0.83 V. Multimeter @ 1306 mV. TBHT @ 228.9 A. Display @ 2.046 V. PS @ 2.05 V

Sunday, August 19, 2018, 13:25: Auto cooling TGHT @ 6 A per min to 80A.

Sunday, August 19, 2018, 13:33: TGHT @ 80.1 A. Display @ 0.540 V. PS @ 0.51 V. Multimeter @ 1193 mV. TBHT @ 228.9 A. Display @ 2.039 V. PS @ 2.04 V

Sunday, August 19, 2018, 13:37: TGHT @ 80.1 A. Display @ 0.535 V. PS @ 0.51 V. Multimeter @ 1190 mV. TBHT @ 228.9 A. Display @ 2.037 V. PS @ 2.04 V

Sunday, August 19, 2018, 13:38: Auto cooling TGHT @ 6 A per min to 40A.

Sunday, August 19, 2018, 13:53: TGHT @ 40.0 A. Display @ 0.259 V. PS @ 0.24 V. Multimeter @ 1100 mV. TBHT @ 228.9 A. Display @ 2.032 V. PS @ 2.03 V

Sunday, August 19, 2018, 13:53: Auto cooling TGHT @ 6 A per min to 0A.

Sunday, August 19, 2018, 14:02: TGHT @ 4.4 A. Display @ 0.042 V. PS @ 0.02 V. Multimeter @ 1033 mV. TBHT @ 228.9 A. Display @ 2.029 V. PS @ 2.03 V

Sunday, August 19, 2018, 14:02: Auto cooling TBHT @ 6 A per min to 200A.

Sunday, August 19, 2018, 14:12: TGHT @ 4.4 A. Display @ 0.042 V. PS @ 0.02 V. Multimeter @ 0807 mV. TBHT @ 198.8 A. Display @ 1.648 V. PS @ 1.65 V

Sunday, August 19, 2018, 14:15: Auto cooling TBHT @ 6 A per min to 160A.

Sunday, August 19, 2018, 14:27: TGHT @ 4.4 A. Display @ 0.042 V. PS @ 0.02 V. Multimeter @ 0531 mV. TBHT @ 158.7 A. Display @ 1.179 V. PS @ 1.17 V

Sunday, August 19, 2018, 14:28: Auto cooling TBHT @ 6 A per min to 120A.

Sunday, August 19, 2018, 14:50: TGHT @ 4.4 A. Display @ 0.042 V. PS @ 0.02 V. Multimeter @ 0419 mV. TBHT @ 118.5 A. Display @ 0.725 V. PS @ 0.72 V

Sunday, August 19, 2018, 14:50: Auto cooling TBHT @ 6 A per min to 80A.

Sunday, August 19, 2018, 15:02: TGHT @ 4.4 A. Display @ 0.042 V. PS @ 0.02 V. Multimeter @ 0208 mV. TBHT @ 79.0 A. Display @ 0.415 V. PS @ 0.40 V

Sunday, August 19, 2018, 15:02: Auto cooling TBHT @ 6 A per min to 40A.

Sunday, August 19, 2018, 15:20: TGHT @ 4.4 A. Display @ 0.042 V. PS @ 0.02 V. Multimeter @ 0083 mV. TBHT @ 38.4 A. Display @ 0.198 V. PS @ 0.19 V

Sunday, August 19, 2018, 15:21: Auto cooling TBHT @ 6 A per min to 0A.

Monday, August 20, 2018, 09:10: RGA off.

Monday, August 20, 2018, 09:14: Ion gauge, turbo pumps off.

Monday, August 20, 2018, 09:15: Power off.

Monday, August 20, 2018, 10:26: Venting.

 Wires reconfigured / set 

Wednesday, August 22, 2018, 13:10: Roughing. 

Wednesday, August 22, 2018, 15:18: Turbo Pumps on.

Thursday, August 23, 2018, 08:16: RGA On.

Thursday, August 23, 2018, 08:39: Power on. Waterlines opened. No response on RGA, Vacuum ok @7.25e-06T

Monday, August 27, 2018, 09:50: Venting.

Monday, August 27, 2018, 10:59: Ta foil removed from one end plate. Roughing.

Monday, August 27, 2018, 11:29: Turbo pumps started.

Monday, August 27, 2018, 11:36: Ion gauge on. Both Turbo pumps at speed.

Tuesday, August 28, 2018, 08:27: Power on

Tuesday, August 28, 2018, 08:30: Waterlines opened. Vacuum ok @ 9.31e-07T. No response on RGA.

Wednesday, August 29, 2018, 11:34: Epics crashed. See added elog.

Friday, August 31, 2018, 10:07: Voltage tests are complete. Results to be uploaded later.

RGA crashed. Unable to re-connect. Manually turned it off.

Friday, August 31, 2018, 10:14: Ion gauge & turbo pumps off.

Friday, August 31, 2018, 11:27: Venting.

Wednesday, August 29, 2018, 11:35: EPIC's crashed.... epically.

Unable to restart Putty or TS controls.

Friday, October 19, 2018, 10:00 (Approx): Site wide power outage. TS completely shut down. 

Power brought back Saturday

Monday, October 22, 2018, 07:15: Full white out on screens. To restart PLC.

Monday, October 22, 2018, 07:42: Multiple attempts made to restart the PLC. Controls white out continues

Also attempted restart of the Vacuum. All 4 turbo pumps switch back to red on any restart attempt.

The turbo pumps had been manually switched off from the controllers to protect them once the power was switched back on.

Monday, October 22, 2018, 09:28: Turbo pumps restarted.

Monday, October 22, 2018, 11:01: All back except the magnet.

Thursday, November 08, 2018, 14:05: Fresh / recently calibrated Neon & Argon bottles installed.

Leak rates: Argon=2.02E-7 atm*cc/sec

                   Neon=1.75E-7 atm*cc/sec

Datasheet attached.

Monday, December 17, 2018, 12:01: Connected Multimeter through feedthroughs J & L. Blue wire removed.

To run TGHT, TBHT, Anode ONLY. HV will remain locked with yellow tape over the keyhole. Currently locked out.

Tuesday, December 18, 2018, 08:37: Power / sources on

TGHT, TBHT, Anode, Coil on. NO HV.

Tuesday, December 18, 2018, 08:40: Turn off. Anode reading before PS on?

We found a steady climb on the Anode current via the epics controls, however no reading turned up on the multimeter. Disappears once the Anode PS is switched on.

Tuesday, December 18, 2018, 08:46: Power / sources on

TGHT, TBHT, Anode, Coil on. NO HV.

Tuesday, December 18, 2018, 08:49: Auto-ramping TGHT to 580 A @ 2 A per min.

Tuesday, December 18, 2018, 08:50: Anode set to 300 V.

 FM Tuesday, December 18, 2018, 13:42: TGHT @ 580 A Anode@300 V. Epics and the power supply shows ~20 mA. However the multimeter doesn't show any reading.

FM Tuesday, December 18, 2018, 14:25: Strange behavior noted on EE while doing the anode voltage scan. Screenshot added to the word document.

FM Tuesday, December 18, 2018, 14:25: Auto-ramping TBHT to 100 A @ 2 A per min

FM Tuesday, December 18, 2018, 15:40: Auto-ramping TBHT to 150 A @ 2 A per min

FM Tuesday, December 18, 2018, 16:26: Auto-ramping TBHT to 200 A @ 2 A per min

FM Tuesday, December 18, 2018, 17:08: Auto-ramping TBHT to 250 A @ 2 A per min

FM Tuesday, December 18, 2018, 17:38: Auto-ramping TBHT to 300 A @ 2 A per min

FM Tuesday, December 18, 2018, 17:20: Auto-ramping TBHT to 250 A @ 2 A per min

FM Tuesday, December 18, 2018, 18:37 : Nothing register on the multimeter, maybe we need to connect between A-B, or B-F. Cooling down to inspect the multimeter connection tomorrow.

FM Tuesday, December 18, 2018, 18:37: Auto-cooling TBHT/TGHT@ 2 A per min

FM Wednesday, December 19, 2018, 09:29: For the lasts 10 hours, the anode drain current has shown a steady value of 10.989 mA even though both the TBHT and the TGHT are off.

FM Wednesday, December 19, 2018, 10:47: Power supplies turned off in EPICS, Anode drain current still shows 4.839 on the readback.

Wednesday, December 19, 2018, 14:25: Power / Sources on. Anode to 300 V. - AS

Wednesday, December 19, 2018, 14:26: Auto-ramping TGHT to 300 A @ 2 A per min. - AS

Thursday, December 20, 2018, 06:42: Auto-ramping TGHT to 580 A @ 2 A per min. - AS

FM Thursday, December 20, 2018, 11:12 : Auto-ramping TBHT to 200 A @ 2 A/min

Thursday, December 20, 2018, 13:05 (Roughly) Power bump due to winds. Full TS shutdown.

High winds caused a brief power outage that completely shutoff the ISAC test stand.

Locked out the power.

RGA checked & shutoff complete

Epics failure, computer restarted.

Thursday, December 20, 2018, 13:52: Shutting ISAC test stand down for the holidays. Checking Epics & operation first.

Thursday, December 20, 2018, 13:55: Roughing pump operating. Turbos left off. Backing valves opened. Epics whiteout on TS sources & optics.

TBHT, TGHT, Anode all brought to zero on epics, although still mostly white out.

Thursday, December 20, 2018, 14:14: Waterlines shut off at the main source & the TS is purged.

Note* Small leak directly on the fittings noticed on FS#5 right after the flow meter paddle wheel on the supply end.  All water flow was briefly halted during the power bump.

Epics still whited out.

Monday, January 07, 2019, 11:13: Fault report 11981 submitted.

Wednesday, January 09, 2019, 09:09: Upper HV cage set to Anode / Positive as per dwg ISK4523D Rev 6.

Thursday, January 10, 2019, 10:00: Switch Anode PS to positive

Thursday, January 10, 2019, 11:29: Anode switched on. Short discovered. 10 V = 0 V & 100 mA.