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This document describe the checks and test that '''must''' be done before and during the Bolometer pool, as well as the frequency needed for these tests. == MAMBO2/ABBA2 Checklist ==

This document describe the checks and test that '''must''' be done before and during the Bolometer pool, as well as the frequency needed for these tests. (Maintained by GQ.)
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=== OPERATOR CHECKLIST ===

 * Bolometer temperature
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 * Teach the observers on the general aspects of the observation '''even''' they are expert MAMBO observers:  * Teach the observers on the general aspects of the observation '''even''' the expert MAMBO observers ('''weekly'''):
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 * Do absorber observations (AbsorberObs) when the weather is too bad even for heterodyne observations. 
 * Do absorber observations (AbsorberObs) if the scans are too spiky		  * Do a backup of the DAFS ('''daily''')
 * Observations on absorber (AbsorberObs, '''at least once per week!''')
   * Do when the weather is too bad even for heterodyne observations.
   * Do if the scans are too spiky
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=== RXs CHECKLIST ===  * Check the cable connections of ABBA ('''weekly''', or if ABBA does not react)

=== Some notes on Operator duties ===

 * Check the bolometer temperature
 * Check that the paddle motor works.
 * Fill the bolometer: https://gra-lx1.iram.es/mainWiki/BolometerCooldownInstructions

<!> Remember to remove the cable from the box when He3 is recycled manually

=== Some notes on receiver engineer duties ===
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 * Resistance  * Check the resistance
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 *  * Check the Bias voltage
 * Check the blank/sync Signal at ABBA with an oscilloscope. ('''During tests, and/or if strong spikes appear''')
 * Check the analog signals after the preamplifier while covering the entrance window with a metal plate. ('''During tests, and/or if strong spikes appear''')
----
=== USEFUL DOCUMENTATION ===

 * ABBA short description: [[attachment:abba2_short_description.pdf]]
 * ABBA cable conections: TBA
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 ||Bololog is not updated|| goPool has not been sent|| Ask the operator to do so||
 ||Mopsic Monitor is not working || There is other monitor running and the DAFS files have been corrupted || Stop the second monitor and recreate the DAFS ||
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    ||The skydip results are abnormally high||The paddle is put in from of the beam||Ask the operator to try it by hand or contact the Rx people||

MAMBO2/ABBA2 Checklist

This document describe the checks and test that must be done before and during the Bolometer pool, as well as the frequency needed for these tests. (Maintained by GQ.)

The tests are divided into different groups, as they supposed to be carried by different groups of the IRAM staff (operators, AoDs, or Rxs)

AOD CHECKLIST

  • Teach the observers on the general aspects of the observation even the expert MAMBO observers (weekly):

    • CookbookPako.

    • When to switch to heterodyne
    • What is a spiky scan
    • Not to open a second monitor at flexible@mrt-lx3:monitor/

  • Do a backup of the DAFS (daily)

  • Observations on absorber (AbsorberObs, at least once per week!)

    • Do when the weather is too bad even for heterodyne observations.
    • Do if the scans are too spiky

  • Check the cable connections of ABBA (weekly, or if ABBA does not react)

Some notes on Operator duties

<!> Remember to remove the cable from the box when He3 is recycled manually

Some notes on receiver engineer duties

  • Check the resistance
  • Check battery voltage
  • Check the Bias voltage

  • Check the blank/sync Signal at ABBA with an oscilloscope. (During tests, and/or if strong spikes appear)

  • Check the analog signals after the preamplifier while covering the entrance window with a metal plate. (During tests, and/or if strong spikes appear)

USEFUL DOCUMENTATION

PROBLEMS AND SOLUTIONS

This is a quick guide through normal problems that appeared in the past and the possible reasons and solutions.

  • PROBLEM

    REASON

    SOLUTION

    Bololog is not updated

    goPool has not been sent

    Ask the operator to do so

    Mopsic Monitor is not working

    There is other monitor running and the DAFS files have been corrupted

    Stop the second monitor and recreate the DAFS

    ABBA does not start getting data

    Wobbler is not wobbling

    Ask the operator

    ABBA does not start getting data

    Wobbler works fine but the signal did not reach ABBA

    Check the cable connections with ABBA

    The skydip results are abnormally high

    The paddle is put in from of the beam

    Ask the operator to try it by hand or contact the Rx people

BoloChkList (last edited 2011-05-30 15:13:12 by lt-ck)