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Rosalie McGurk

Rosalie McGurk

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  • Before committing to wanting a battery, I want to know how it will be cabled. Can it be made to interface with KCWI’s power cable? If yes, I want a battery. If no….. not sure. As we are on sky that night, I have no interest in actually rewiring the electronics in the electronics cabinet.

Procedure Before power down

  • Not sure if this is happening with the presence of the battery pack. Note: Rosalie will warm the detector by 5 deg C the day before. Normal operation temps are blue -110.1 deg C (163 K) and red -125.0 deg C.

  • Without a UPS: run the kcwiPowerDown script (same as if we were installing or removing KCWI from the telescope). On k2-insttech (vm-k2obs:2), from the background menu → KCWI Control → KCWI Engineering → Power Down KCWI. Answer any required questions and watch to make sure it is powered down successfully.

    • With a UPS:

  • With comms: Immediately prior to power down, summit techs should open an xterm@kcwiserver from the k2-insttech (vm-k2obs:2) background menu, and type kcwiOutagePowerDown "off" to run the script to shut most of KCWI down, leaving on the Blue Lakeshore (blue temp control), the Red detector (red temp control), blue and red ion pumps (pressure control), and the lantronix (comms with ion pumps).

Call Rosalie with any questions, extension 3584 or 925-876-4788.

Tuesday 11/5 Plan

  • KCWI will have both blue and red sides filled with LN this morning.

  • Rosalie will confirm that KCWI’s hatch is closed.

  • Rosalie will remotely power down KCWI when Ben McCarney is ready. Ben will flip the instrument power switch for added safety.

  • Ben will open the side of the electronics cabinet and find/unplug the power plugs of the Eaton1 (also called just Eaton) and Eaton2 from the electronics cabinet, leaving Eaton3 untouched. Via extension cords (or magic), Ben will plug Eaton1 and Eaton2 into the charged Jacquerie UPS battery.

  • Rosalie will turn on the following power plugs for basic operations and monitoring, and Ben will check that the corresponding Eaton plug indicator light turns on:

    • Eaton1 plug 1 Lantronix (for remote ion pump control/monitoring)

    • Eaton1 plug 4 Blue lakeshore (runs blue detector heater, monitoring temps)

    • Eaton1 plug 5 Blue rough pressure gauge (monitoring blue pressure)

    • Eaton1 plug 6 Blue ion pump (controlling blue pressure)

    • Eaton2 plug 3 Red detector controller (runs red detector heater, needs to be set up by “kcwi start krds”)

    • Eaton2 plug 4 Red lakeshore (monitoring temps)

    • Eaton2 plug 5 Red rough pressure gauge (monitoring red pressure)

    • Eaton2 plug 6 Red ion pump (controlling red pressure)

    • Eaton3 plug 4 Heat exchanger

  • Rosalie runs kcwi stop! krds and then kcwi start krds to send settings to the Red detector controller

  • Ben covers any lights coming off the Jacquerie or out of the open electronics cabinet

  • KCWI stays like this overnight.

Procedure Before power down

  • With a UPS:

    • Both sides of KCWI will be filled on 11/5 and 11/7. Fills are skipped on 11/6.

    • With comms, as kcwieng@kcwiserver, Rosalie will run:

      • kcwiPower 1 5 off to turn off the Blue rough pressure gauge

      • kcwiPower 2 5 off to turn off the Red rough pressure gauge

      • kcwiPower 2 4 off to turn off the Red lakeshore (doesn’t control red detector temp)

      • kcwiPower 1 1 off to turn off the Lantronix

      • kcwiPower 3 4 off to turn off the Heat Exchanger

      • Open electronics cabinet door.

      • The following plugs will still be on, as intended:

        • Eaton1: plug 4, plug 6 (Blue Lakeshore temps/heater, Blue ion pump)

        • Eaton2: plug 3, plug 6 (Red Detector controller/heater, Red ion pump)

    • Without comms, Manually:

      • Run kcwiPowerDown script (same as if we were installing or removing KCWI from the telescope. On k2-insttech (vm-k2obs:2), from the background menu → KCWI Control → KCWI Engineering → Power Down KCWI. Answer any required questions and watch to make sure it is powered down successfully.

        • If “manually” means there are no computers, open KCWI’s electronics cabinet and turn off each plug on the 3 eatons manually, one by one.

      • Go up to KCWI and physically switch to UPS power. Open the electronics cabinet door and position a Tall Ladder for access.

      • Physically turn on Eaton 1 (green Power light should light up) and turn on plug 4, a (orange?) light should show over the 4. This is the Blue Lakeshore / blue detector heater. Turn on the Blue Lakeshore if it doesn’t turn on automatically. It should monitor and control the temp of channel 1 (blue detector) automatically.

      • Physically turn on Eaton 2 (green Power light should light up) and turn on plug 3, a (orange?) light should show over the 3. This is the Red detector controller/heater. It should turn itself on.

      • Check the UPS. If time/voltage draw looks reasonable (>2 hrs power remaining), we want to turn on the ion pumps.

        • Physically turn on plugs 6 on BOTH Eaton 1 and 2.

        • Climb the Tall Ladder to the Very Top of the electronics cabinet to access the Ion Pumps. They look like this, although you will only see the front:

        • image-20241015-053317.pngImage Added

        • For BOTH BLUE AND RED: Press the blue power button (bottom left corner) and see the power light come on.

        • For BOTH BLUE AND RED: Once powered up, Press and HOLD the red HV (high voltage) button in the upper left corner until the light comes on and the display shows pressures, likely around 2-4e-6 torr.

        • Ion pumps look like this, although you will only see the screen:

    image-20241015-053317.pngImage Removed

  • If on UPS power, leave electronics cabinet door OPEN.


  • Without a UPS or battery:

    • Run the kcwiPowerDown script (same as if we were installing or removing KCWI from the telescope). On k2-insttech (vm-k2obs:2), from the background menu → KCWI Control → KCWI Engineering → Power Down KCWI. Answer any required questions and watch to make sure it is powered down successfully. If possible, go flip OFF the power switch on KCWI to isolate it.

Procedure during the power down

  • Pray to your favorite goddesses.

  • If on UPS power:

    • Check the Blue detector temp on the Blue Lakeshore. Channel 1 is the blue detector. Good temps are goal 163 K, range 158 – 168 K. (run on Eaton1 plug 4)

    • Check the pressures on both of the Ion Pump screens (Tall Ladder, sorry!). Likely 2.0-6.0 e-6 torr. (blue Eaton1 plug6, red Eaton2 plug6)

    • (no way to monitor the red detector temperature)

Procedure to bring back the system

  • Bring up the servers: start kcwiserver (128.171.136.74) first. After most the rest of the instrument servers are up, please bring up kcwitarg (128.171.136.53), vm-kcwi (128.171.136.55), and k2-andor-camserver2 (10.136.1.70).

  • If on a UPS, climb the tall ladder and turn off HV + power on the ion pumps. Then turn off Lakeshore. Then turn off each powered plug on Eaton 1 and 2.

  • Switch KCWI back to facility power. (need to talk to Ben if we should operate overnight on the Jacquerie or not)

  • If the servers are up:

    • Summit techs should run the kcwiPowerUp from the engineering menu (same as if KCWI had just been installed or removed). On k2-insttech (vm-k2obs:2), from the background menu → KCWI Control → KCWI Engineering → Power Up KCWI. Answer any required questions and watch to make sure it is powered down up successfully. Call Rosalie once this is done, so she can monitor the power uprestore up and restore the proper temperature settings

  • If the servers are not up:

    • Go up to KCWI and make sure KCWI is physically switched on. Open the electronics cabinet door and position a Tall Ladder for access.

    • Physically turn on Eaton 1 (green Power light should light up) and turn on plug 4, a (orange?) light should show over the 4. This is the Blue Lakeshore / blue detector heater. Turn on the Blue Lakeshore if it doesn’t turn on automatically. It should monitor and control the temp of channel 1 (blue detector) automatically. Normal operations temp is 163 K, so 158 - 168 K is an ok range.

    • Physically turn on Eaton 2 (green Power light should light up) and turn on plug 3, a (orange?) light should show over the 3. This is the Red detector controller/heater. It should turn itself on. No way to monitor this.

    • To turn on the ion pumps:

      • Physically turn on plugs 6 on BOTH Eaton 1 and 2.

      • Climb the Tall Ladder to the Very Top of the electronics cabinet to access the Ion Pumps. They look like this, although you will only see the front:

      • image-20241015-053317.png

        For BOTH BLUE AND RED: Press the blue power button (bottom left corner) and see the power light come on.

      • For BOTH BLUE AND RED: Once powered up, Press and HOLD the red HV (high voltage) button in the upper left corner until the light comes on and the display shows pressures, likely around 2-4e-6 torr.

  • Leave electronics cabinet door OPEN.

  • Call Rosalie with any questions, extension 3584 or 925-876-4788.

  • Once servers are up, call Rosalie and she can take over powering up KCWI.