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operation:technical

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operation:technical [2018/01/12 05:48]
Warren Hankey
operation:technical [2018/01/28 22:02] (current)
Warren Hankey
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 http://​webcamyg.phys.utas.edu.au http://​webcamyg.phys.utas.edu.au
  
-===Cryo===+==== 26 m Telescope ​==== 
 +==Receiver Position== 
 +In Otter interface [r] resets box in focus cabin. If receiver position display is "​zero"​ indicates error (all bits zero) indicative of reset required. 
 +Above fault also means auto receiver position not working.
  
-Warmed ​and pressure drop+===Cryo System=== 
 + 
 +Action plan after warmed ​and severe ​pressure drop. Compressor has cut out as pressure went below 150 psi
  
 - commence vaccuming S/X using turbo pump - commence vaccuming S/X using turbo pump
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 compressor and increase the pressure to 300 psi supply. compressor and increase the pressure to 300 psi supply.
  
-- locate the leak+- locate the leak. Leak detector goes yellow for heavy molecules, red for light gas. Keep skin away from tip, and don't breathe near tip.
  
 - power down the compressor - power down the compressor
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 - replace leaking hose - replace leaking hose
  
-- power up the compressor+- power up the compressor, must have > 150 psi to start
  
--top helium up to 300 psi+-top helium up to 300 psi once compressor running
  
 - commence s/x cooling by turning on cryo S/X power in diesel room - commence s/x cooling by turning on cryo S/X power in diesel room
/home/www/auscope/opswiki/data/attic/operation/technical.1515736080.txt.gz · Last modified: 2018/01/12 05:48 by Warren Hankey