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oxygen_monitors [2021/06/14 16:52]
leblanc [LN2] flesh out description
oxygen_monitors [2021/06/23 12:49]
leblanc
Line 25: Line 25:
 ==== Monitoring Equipment ==== ==== Monitoring Equipment ====
  
-Below this point is the nitty-gritty details on the oxygen monitors, wiring, manuals, etc.  Operators shouldn'​t need to refer to this information,​ but it is made available for accelerator staff.+>**Below this point is the nitty-gritty details on the oxygen monitors, wiring, manuals, etc.  Operators shouldn'​t need to refer to this information,​ but it is made available for all.**
  
 === Equipment Info === === Equipment Info ===
  
 Oxygen deficiency is monitored in the lab using 2 [[https://​www.amio2.com/​oxygen-analyzers/​oxygen-deficiency-monitors/​model-221r/​|AMI Model 221R Oxygen Deficiency Monitors]]. ​ These monitors were installed in June 2021 by Don Carter and Greg Leblanc. Oxygen deficiency is monitored in the lab using 2 [[https://​www.amio2.com/​oxygen-analyzers/​oxygen-deficiency-monitors/​model-221r/​|AMI Model 221R Oxygen Deficiency Monitors]]. ​ These monitors were installed in June 2021 by Don Carter and Greg Leblanc.
 +
 Normal oxygen content is **20.9%**. ​ The current oxygen reading will be be displayed on the red LED numbers on the monitor. ​ The monitor should also show a green power LED under normal conditions.  ​ Normal oxygen content is **20.9%**. ​ The current oxygen reading will be be displayed on the red LED numbers on the monitor. ​ The monitor should also show a green power LED under normal conditions.  ​
 +
 If low oxygen is detected, an alarm will sound, and the area should be evacuated, and accelerator staff contacted. If low oxygen is detected, an alarm will sound, and the area should be evacuated, and accelerator staff contacted.
 +
 +Correspondence with AMI can be found at: {{::​ami_sensor_replacement.pdf|}} and also at {{::​ami_2021-06-22.pdf|}}.
 +
 +  * Sensor data sheet: ​
 +    * Web link: [[https://​www.amio2.com/​img/​model-221r/​model-221r-data-sheet.pdf]]
 +    * Local copy (retrieved 2021-06-22):​ {{::​model-221r-data-sheet.pdf|}}
 +  * Sensor (w/remote probe) data sheet: ​
 +    * Web link: [[https://​www.amio2.com/​img/​model-221r-w-remote/​model-221r-w-remote-data-sheet.pdf]]
 +    * Local copy (retrieved 2021-06-22):​ {{::​model-221r-w-remote-data-sheet.pdf|}}
 +  * Operator manual: ​
 +    * Web link: [[https://​www.amio2.com/​img/​model-221r/​model-221r-operator-manual.pdf]]
 +    * Local copy (retrieved 2021-06-22):​ {{::​model-221r-operator-manual.pdf|}}
  
 == Sensor Info == == Sensor Info ==
-The monitors are equipped with remote probes, to allow placement closer to the floor, since the risk is primarily from heavier than air gasses. ​ The Ziurconium Oxide sensors used in these devices are expected to have a 10 year service life.  ​FIXME: We should find out how to tell when the sensors might be failing.  ​Also need to understand if the remote probe contains ​the sensor, ​and will that allow field replacement?​+The monitors are equipped with remote probes, to allow placement closer to the floor, since the risk is primarily from heavier than air gasses. ​ The Ziurconium Oxide sensors used in these devices are expected to have a 10 year service life.  ​The sensor is located in the remote probe, and could theoretically ​be sent back for repair separately from the head unit.  ​AMI recommends returning both the head unit and sensor ​together. ​ Sensors are approaching end of life when their span factor is approaching 1000.  The span factor can be checked through the command center softwareor by pressing the "​up"​ button on the front panel. 
 + 
 += Calibration Info = 
 +The sensors should be calibrated quarterly. ​ We should add this to our quarterly radiation safety checks.
  
 === Communication Info === === Communication Info ===
oxygen_monitors.txt · Last modified: 2021/06/23 12:49 by leblanc