Difference: Cooling (2 vs. 3)

Revision 32008-05-05 - MartinVanBeuzekom

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META TOPICPARENT name="VELOOperatingManuals"

Quick start

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  The system can be started from the user interface (see section 5 and figure 1 of the manual).
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cooling_ui.bmp
 
  • Push the button “start TR C-side” to start the cooling of the C-side. (for the powering shifts only this action is required)
  • Push the button “start TL A-side” to start the cooling of the A-side.
  • Follow the status in the status field the following sequence (with an indicative time on how long the status lasts) can be observed in the
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CO2 status field chiller status field
a) Off a) Main and backup off
b) Start cool procedure (2 secs)  
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| c) Valves to default (2 secs) d) Switch off transfer line (2 secs) e) Heating accu (15 mins) f) Pumping warm liquid (30-60 secs) g) Starting chiller (30 mins) g) Main Chiller (SA) on/back-up chiller (SB)on h) Load via bypass (2 secs) i) Cooling Transfer line (30 mins) j) Cool accu and detector (30 mins) k) Allow detector on
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c) Valves to default (2 secs)  
d) Switch off transfer line (2 secs)  
e) Heating accu (15 mins)  
f) Pumping warm liquid (30-60 secs)  
g) Starting chiller (30 mins) g) Main Chiller (SA) on/back-up chiller (SB)on
h) Load via bypass (2 secs)  
i) Cooling Transfer line (30 mins)  
j) Cool accu and detector (30 mins)  
k) Allow detector on
 
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  • Push the button “start TL(TR) A-side (C-side)” to start the cooling of the A-side(C-side).
  • Verify that the set-point is correct in the field “setpoint”
    • +10'C for the backup chiller SB
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  • At step g) verify that the right mode (SB for the powering tests) is started (see middle status field with chiller status on the user interface). Stop the system when the wrong mode is started.
  • Verify that the correct half (C for the powering tests) is cooled. Stop the system when this is not the case.
  • When the chiller (step g)) is on verify that the set-point is correct in the field “setpoint”
    • +10'C for the backup chiller SB (for the powering tests)
 
    • -25'C for the main chiller SA
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  • Follow the status in the status field (see section 5 for details)
    • Verify that the right mode (SA or SB) is started
    • Verify that the correct half is cooled
  • To switch off push the button “Stop TL & TR”
 
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For more information see manual
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  • Step i) will be done when the temperature at the other side of the transfer line (given by TT46 on 'detector status' page ) is at 18'C.


cooling_detector_status.bmp

  • To switch off push the button “Stop TL & TR”

For more information see manual

 
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-- MartinVanBeuzekom - 24 Apr 2008
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-- MartinVanBeuzekom - 05 May 2008
 
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