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chara:operating_procedures [2021/12/20 22:29] charaobs |
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1.2 The Metrology Laser | 1.2 The Metrology Laser | ||
- | A high-powered infrared laser is used for the delay line metrology. This is an eye hazard, so before entering the lab check to make sure the red light above the door is not on. If the laser is activated, it is a must to put on IR-protective goggles. If you are not sure, wear the goggles. | + | A high-powered infrared laser is used for the delay line metrology. This is an eye hazard, so before entering the lab check to make sure the red light above the door is not on. If the laser is activated, it is a must to put on IR-protective goggles. If you are not sure, wear the goggles. Please note that the METLAS gui or OPLE controller gui may not show the corect state of the laser. |
1.3 General Lab Rules | 1.3 General Lab Rules | ||
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2.1 Starting the vacuum pump for the light pipes | 2.1 Starting the vacuum pump for the light pipes | ||
- | Go into vacuum pump shack. Flip on power switch for pump and wait for the blower to go on in about 6 seconds. Open the valve slowly (parallel to pipe means open) Note if fan cords are plugged into wall outlet to keep pumps cool. Note oil temperature when you start up. Oil temps below 15º C make for a labored start. There is currently a block heater on the north side of the pump and a space heater on the south side. Inform Larry if the oil temp is low and the heaters did not run to bring the temp up before starting.\\ | + | Go into vacuum pump shack. Flip on power switch for pump and wait for the blower to go on in about 6 seconds. Open the valve slowly (parallel to pipe means open) Note if fan cords are plugged into wall outlet to keep pumps cool in the summer. Note oil temperature when you start up. Oil temps below 15º C make for a labored start. There is currently a block heater on the north side of the pump and a space heater on the south side. Inform Larry or Craig if the oil temp is low and the heaters did not run to bring the temp up before starting.\\ |
- | Go into lab building, check pressures on Vacmon display. If pressure is higher than 100 torr in any of the lines, pump those lines only one at a time. Open valve a little, then come back to open fully. When all lines to be used are well below 100 torr, open all those valves. The final pressure should be 0.5 - 1.0 Torr in each line. The pump will normally bring all 6 lines down to .2-.3 Torr. The S1 and S2 lines leak the most during the day and will read the highest in the afternoon when you return, usually between 20-30 Torr in the summer and 15-25 Torr in the winter. Note any unusual vacuum readings as they can indicate a leak beyond what is normal. Sometimes a line isn't pumped down the night before and can read higher than 30 Torr. Pump the highest ones down first as stated above. | + | Go into lab building, check pressures on Vacmon display. If pressure is higher than 100 torr in any of the lines, pump those lines only one at a time. Open valve a little, then come back to open fully. When all lines to be used are well below 100 torr, open all those valves. The final pressure should be 0.5 - 1.0 Torr in each line. The pump will normally bring all 6 lines down to .2-.3 Torr. The S1 and S2 lines leak the most during the day and will read the highest in the afternoon when you return, usually between 20-30 Torr in the summer and 15-25 Torr in the winter. Note any unusual vacuum readings as they can indicate a leak beyond what is normal. Sometimes a line isn't pumped down the night before and can read higher than 30 Torr. Pump down the highest ones first as stated above. |
2.2 Filling NIRO with LN2\\ | 2.2 Filling NIRO with LN2\\ | ||
Fill both chambers on the NIRO camera. Use the gloves and glasses provided on the shelf with the funnels and the thermos. It will normally take 1 liter of LN2 in the outer chamber and 1/2 liter in the inner chamber. Fill it until the LN2 bubbles out of the top. This camera is normally kept cool all the time, exceptions will be noted.\\ | Fill both chambers on the NIRO camera. Use the gloves and glasses provided on the shelf with the funnels and the thermos. It will normally take 1 liter of LN2 in the outer chamber and 1/2 liter in the inner chamber. Fill it until the LN2 bubbles out of the top. This camera is normally kept cool all the time, exceptions will be noted.\\ | ||
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- | Record that you filled the camera in the log book, noting time and camera filled. Note also the vacuum measurement for the MIRCX camera. If you do not observe due to weather, fire or closure, | + | Record that you filled the camera in the log book, noting time and camera filled. Note also the vacuum measurement for the MIRCX camera. If you do not observe due to weather, fire or closure, |
2.3 Alignment of the light path to the telescopes\\ | 2.3 Alignment of the light path to the telescopes\\ | ||
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The IR mirrors on the beam samplers can be adjusted using Pico 2 controller to targets depending on which IR beam combiner is to be used.\\ | The IR mirrors on the beam samplers can be adjusted using Pico 2 controller to targets depending on which IR beam combiner is to be used.\\ | ||
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- | For CLIMB 1 and CLIMB 2, the removable 6-beam target should be placed in the clamps on the CLIMB table. This also applies to aligning CLIMB for fringe tracking for VEGA or fringe finding for PAVO.\\ | + | For CLIMB 1, CLIMB 2 or CLASSIC, the removable 6-beam target should be placed in the clamps on the CLIMB table. This also applies to aligning CLIMB for fringe finding for PAVO.\\ |
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- | For MIRCX, the same target should be placed in the clamps on the MIRCX table. Place the target to the appropriate table, making sure it seats firmly in the clamps. Place the small corner cubes (labeled) on their bases at the BRTs. Make sure they seat firmly and correctly. Open IR shutters, send laser light using VISBEAMS gui to the position you want to check. Use a tablet to bring up Pico 2 gui. Click on icon or in xterm type: xpico2. Select the appropriate IR mirror for the beam you are about to adjust. For ex: S1IR. The Beam Sampler gui tells you which telescope is in the beam you are aligning. When done for all telescope to be used, remove target and place it above the CLASSIC/ | + | For MIRCX, the same target should be placed in the clamps on the MIRCX table. Place the target to the appropriate table, making sure it seats firmly in the clamps. Place the small corner cubes (labeled) on their bases at the BRTs. Make sure they seat firmly and correctly. Open IR shutters, send laser light using VISBEAMS gui to the position you want to check. Use a tablet to bring up Pico 2 gui. Click on icon in the menu or in xterm type: xpico2. Select the appropriate IR mirror for the beam you are about to adjust. For ex: S1IR. The Beam Sampler gui tells you which telescope is in the beam you are aligning. When done for all telescope to be used, remove target and place it above the CLASSIC/ |
2.5 Final steps in the lab | 2.5 Final steps in the lab | ||
If using CLASSIC or CLIMB, turn on the black box above the NIRO computer, and then turn on the silver box below it on the same cart. Remove cover on camera. Note which filter is reported on the filter wheel. If using MIRCX/ | If using CLASSIC or CLIMB, turn on the black box above the NIRO computer, and then turn on the silver box below it on the same cart. Remove cover on camera. Note which filter is reported on the filter wheel. If using MIRCX/ | ||
+ | |||
+ | On the Metrology table inside the lab, turn on two blue amplifiers for metrology laser (on button is labeled " | ||
+ | |||
+ | Be sure to inform the MIRCX/ | ||
2.6 Starting up the new OPLE system and Metrology (Added 08/10/21 - Chris) | 2.6 Starting up the new OPLE system and Metrology (Added 08/10/21 - Chris) | ||
- | \\ | + | Go out to the computer area, turn the metrology |
- | On the Metrology table inside the lab, turn on two blue amplifiers for metrology laser (on button is labeled " | + | |
- | + | ||
- | Finish what you are doing in the lab, go out to the computer area, turn the laser signal | + | |
After the laser is warmed up, check sockman for old OPLE" | After the laser is warmed up, check sockman for old OPLE" | ||
- | If the OPLE System Control gui is not already running on wazoo, you can start the gui with the following command | + | If the OPLE System Control gui is not already running on wazoo, you can start the gui in the lab with the following command |
- | ssh -Y ople / | + | ssh -Y ople / |
The gui that appears does much of the start up sequence remotely and does not fully start everything yet. This will eventually only require fewer steps to complete. | The gui that appears does much of the start up sequence remotely and does not fully start everything yet. This will eventually only require fewer steps to complete. | ||
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Once all 6 are solid yellow, right click on each yellow dot, and select start. This loads the control software and will turn the button green. Once all 6 are green, you need to close the gui and reopen it in the control room. | Once all 6 are solid yellow, right click on each yellow dot, and select start. This loads the control software and will turn the button green. Once all 6 are green, you need to close the gui and reopen it in the control room. | ||
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- | Be sure to inform the MIRCX/ | ||
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3.2 Setting up for observing | 3.2 Setting up for observing | ||
- | The first thing to start is the Ople server so you can let the MIRCX and MYSTIC observers know it is running. | + | The first thing to start is the Ople server so you can let the MIRCX and MYSTIC observers know it is running. Some will start the STS data recording before Ople is started, but others may want it running. |
Turn on the following from the POWER GUI: To change the setting on the power GUI, unclick LOCK, make change, re-click LOCK. Under RACK_2, turn on [METSCOPE] (button will turn green when ON). If observing with CLASSIC or CLIMB2, turn on [NIRO CPU] and [CLS-DITH] on RACK_2. If observing with CLIMB1, turn on [NIRO CPU] on RACK_2 and [CLM-DITH] on RACK_3. For each telescope using lab tiptilt, turn on [TIP/TILT]. | Turn on the following from the POWER GUI: To change the setting on the power GUI, unclick LOCK, make change, re-click LOCK. Under RACK_2, turn on [METSCOPE] (button will turn green when ON). If observing with CLASSIC or CLIMB2, turn on [NIRO CPU] and [CLS-DITH] on RACK_2. If observing with CLIMB1, turn on [NIRO CPU] on RACK_2 and [CLM-DITH] on RACK_3. For each telescope using lab tiptilt, turn on [TIP/TILT]. | ||
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3.3 Servers required for observing | 3.3 Servers required for observing | ||
- | Servers can be opened from the pop up menu at bottom of screen 1, using the black platter icon or using the Observation Setup icon which opens them all automatically. The GPS server and the METROL server should always stay on and remain on screen 1. Close and re-open all Telescope servers after UT 0h, (because of tiptilt connection issues) in screen 2. Open Primary OPLE gui, Open Classic, Climb1, or Climb2 if needed, Open Tiptilt Server if needed, Open Metrology Monitor (METROL) gui, (upper right of screen 1), this gui usually remains open. Open Metrology Laser (METLAS) gui, (upper right of screen 1), this gui usually remains open. | + | Servers can be opened from the pop up menu at bottom of screen 1, using the black platter icon or using the Observation Setup icon which opens them all automatically. The GPS server and the METROL server should always stay on and remain on screen 1. Close and re-open all Telescope servers after UT 0h, (because of tiptilt connection issues) in screen 2. Open Primary OPLE gui, Open Classic, Climb1, or Climb2 if needed, Open Tiptilt Server if needed, Open Metrology Monitor (METROL) gui, (upper right of screen 1), this gui usually remains open. Open Metrology Laser (METLAS) gui, (upper right of screen 1), this gui usually remains open. |
3.4 Open Telescope guis, or obsgtks from icons on desktop | 3.4 Open Telescope guis, or obsgtks from icons on desktop | ||
- | 3.5 Open GUIs required for observing from the menu under GTK or the desktop icons: Open Primary OPLE gui, Open Classic, Climb1, or Climb2 gui if needed, Open LDC1 and LDC2 if PAVO program is observing. If using Lab Tiptilt, open Tiptilt GUI. Check that the pops are set by confirming the POP Overview window or Popperi gui has the same pops as the setup request email. | + | 3.5 Open GUIs required for observing from the menu under GTK or the desktop icons: Open Primary OPLE gui, Open Classic, Climb1, or Climb2 gui if needed, Open LDC1 and LDC2 if PAVO program is observing. If using Lab Tiptilt, open Tiptilt GUI. Check that the pops are set by confirming the POP Overview window or Popperi gui has the same pops as the setup request email. Confirm the M10 mirrors are aligned by using the green lab alignment laser before homing the carts. The procedure is above in Section 2.3.6 M10 Alignment. |
(This section is obsolete with the retiring of the old lab tiptilt)\\ | (This section is obsolete with the retiring of the old lab tiptilt)\\ | ||
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3.6 Metrology laser and homing the carts | 3.6 Metrology laser and homing the carts | ||
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