---+++ Sensaphone Protocol The sensaphone is the alarm monitor connected to both of the -80C freezers in MBB. Below is an overview of the current settings and the expected time line in the event of a qualifying problem. 1 An alarm condition exists for either freezer for 3 seconds or longer triggering an alarm with the sensaphone. * Once the alarm is triggered it has to be acknowledged, even if the problem correct's itself * Example: Power goes out in MBB and the backup generators do kick on for 65 seconds. 60 seconds after power goes out the freezer will go into an alarm mode. 3 seconds later this will trigger the sensaphone alarm. The backup power kicks on 2 seconds later. 3 minutes later, the sensaphone begins making phone calls saying there was an alarm but is currently "OK". 1 Sensaphone waits __3 minutes__ for someone to acknowledge the alarm locally. 1 This is done by pressing the large red 'alarm/cancel' button on the sensaphone unit. This can be done at anytime to stop the phonecalls from going out. 1 Assuming alarm is not acknowledged, the sensaphone calls the next person on the list and plays a recording __3 times__ describing where the problem is. 1 At the end of the recording the sensaphone prompts for and gives 10 seconds to enter the acknowledgement code. The code is "555"<br> *NOTE* The acknowledgment code is not on the recording. 1 After a second prompting for the acknowledgment code, the sensaphone will disconnect the call. Anyone can call (512) 471-3344 and enter "555" to stop the phone calls from going out. 1 The sensaphone waits __5 minutes__ before placing a call to the next person on the list as above. 1 The process repeats until the alarm is acknowledged or a total of __100__ is made. The call list order is currently: * Simon * Jeff * Dacia * None programmed (but available if someone wants to volunteer) Qualifying problems: * Temperature rises above -65C. * Temperature falls below -90C. * Loss of power for more than 60 seconds. Non-Qualifying problem of note: * Door being left ajar. While the alarm will sound locally for the freezer itself, it will not trigger a call regardless of if the alarm is "silenced" on the freezer. ---+++MBB Freezer Failure There is a backup -80 located in MBB room 1.138. <br> If this is full, there is a second backup -80 on the third floor hallway opposite the autoclave room. <br> Finally, a third backup is in the attic, access form the elevator nearest Barrick Lab will require a key from Admin desk.<br> If we need to move our items to any freezer follow the procedure outlined below: <br> 1. Affix a label to the outside of the freezer stating which shelf(ves) you are using. <br> 2. Label your materials. <br> 3. Be aware that as the door will be opened continually it will go into alarm, which will be received by the alarm monitoring shop. <br> 4. Please call them BEFORE you start the transfer of materials at 471.3935 to warn them that they needn't therefore call Rob (building manager) at 2.00 in the morning. <br> 5-16-14 According to Rob the outgoing phone number for the MBB freezer is (512) 471-3344.<br> 10-8-15 Verified as phone number ---+++Preventive maintenance Try to minimize the amount of time that the freezer door is open; if necessary, remove the rack or box from freezer, close door, find your stuff, and return rack/box to freezer. <br> *Maintenance checklist* |Action| Monthy | Yearly | |Check and clean probe cover, gaskets, hinges and lid(s) of ice and snow| yes | | |Check air filter| yes | | |Check condenser fan motor for unusual motor noise or vibration| | yes | To clean lid gasket use a soft cloth to remove any frost build-up from the gasket, sub-lids and lids. Replace and clean lids. To clean lids use warm water to remove ice and allow to dry. <br> To clean air filter and/or condenser use a vacuum to remove any dust from the filter/condenser fins. Use care not to damage the condenser fins. <br>
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Topic revision: r7 - 2016-08-29 - DanielDeatherage