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public:catalinas:bigelow:kuiper_61:operating_notes

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public:catalinas:bigelow:kuiper_61:operating_notes [2020/02/11 13:13]
mel 		public:catalinas:bigelow:kuiper_61:operating_notes [2020/02/27 13:38] (current)
mel
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 **There is a known bug that the telescope stops responding to the TCS after satellite tracking. If this occurs, please contact Scott Swindell.**  **There is a known bug that the telescope stops responding to the TCS after satellite tracking. If this occurs, please contact Scott Swindell.** 
  
-======Notes on Filling Dewar with LN2=====+=====Notes on Filling Dewar with LN2=====
   * Make sure you always use the static discharge strap whenever you're touching the dewar.   * Make sure you always use the static discharge strap whenever you're touching the dewar.
   * Before inserting the metal fill tube into the M4K touch it to the outside of the fill port   * Before inserting the metal fill tube into the M4K touch it to the outside of the fill port
   * If the pressure in the LN2 dewar is low, you can hook up the dry nitrogen to pressurize the dewar and fill faster.  These dewars only allow 7 psi of pressure before venting, so please do not turn up the dry N2 higher than 7.  The M4K won't fill faster at this point, and dry N2 is being wasted.    * If the pressure in the LN2 dewar is low, you can hook up the dry nitrogen to pressurize the dewar and fill faster.  These dewars only allow 7 psi of pressure before venting, so please do not turn up the dry N2 higher than 7.  The M4K won't fill faster at this point, and dry N2 is being wasted. 
   * If you use the last of the LN2 in a tank please swap transfer tube to a fresh dewar.  Your certifier should have gone over how to do this.  If you don't feel comfortable doing this, reach out to Mountain Ops for training.     * If you use the last of the LN2 in a tank please swap transfer tube to a fresh dewar.  Your certifier should have gone over how to do this.  If you don't feel comfortable doing this, reach out to Mountain Ops for training.  
-  * **Wear proper PPE.**  When handling LN2 in any capacity wear long pants and closed toed shoes.  You must also wear goggles AND a face shield when using liquid nitrogen, and cryo gloves.  You must also wear long sleeves when handling liquid nitrogen.  If you don't have long sleeves we've provided lab coats for you to use.+  * **[[public:observer:stress_proper_ppe_use|Wear proper PPE.]]**  When handling LN2 in any capacity wear long pants and closed toed shoes.  You must also wear goggles AND a face shield when using liquid nitrogen, and cryo gloves.  You must also wear long sleeves when handling liquid nitrogen.  If you don't have long sleeves we've provided lab coats for you to use.
   * For the M4K, the dewar MUST be filled every 24hrs. NO EXCEPTIONS.   * For the M4K, the dewar MUST be filled every 24hrs. NO EXCEPTIONS.
     * If a camera has gone longer than 24 hours, call a staff member. Sometimes the M4K is warming up deliberately, so always call if you find it over 24 hours between fills.     * If a camera has gone longer than 24 hours, call a staff member. Sometimes the M4K is warming up deliberately, so always call if you find it over 24 hours between fills.
public/catalinas/bigelow/kuiper_61/operating_notes.1581452019.txt.gz · Last modified: 2020/02/11 13:13 by mel

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