.. these rolls are defined to use custom css classes
.. role:: yellow
.. role:: orange
.. role:: blue
.. role:: white-cell

O2 Sensor Testing Protocol
==========================

The purpose of this document is to test the functionality of the O2 sensors in Vault-1, Hutch-1, and RF-1. 

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Staring Conditions
------------------

#. O2 main and remote units only show LED for POWER.

    - Vault-1 main unit
    - Vault-1 Control remote unit
    - RF-1 main unit
    - Accelerator Lab remote unit
    - Hutch-1 main unit
    - Hutch-1 Control remote unit (top)
    - Astrella enclosure main unit
    - Hutch-1 Control remote unit (bottom)

#. Vault-1 Control IONIZING RADIATION INTERLOCK protocase AREA MONITOR OXYGEN lamp is :green:`green`.

#. Relay contact #9 in Vault-1 Control west aggregator panel has LEDs on.

#. :yellow:`Yellow` 4 contact blocks in Vault-1 Control west aggregator panel all have continuity with each other. 

.. list-table::
    :align: center

    * - .. image:: /images/user_docs/Vault-1_ionizing_radiation/Vault-1_O2_main.jpg
            :scale: 20 %
            :align: center

      - .. image:: /images/user_docs/Vault-1_ionizing_radiation/Vault-1_O2_remote.jpg
            :scale: 20 %
            :align: center
    
    * - O2 main unit. :white-cell:`=====================================================================`
      - O2 remote unit. :white-cell:`===================================================================`

.. table-caption:: 
    **Figure 1:** This is the O2 sensor pair. 
    The O2 main unit is the sensor, which sends data for display to the O2 remote unit.
    Both display the same information. 


.. figure:: /images/testing_documentation/O2/yellow_4_contacts.jpg
    :scale: 20 %
    :align: center

    **Figure 2:** These are the yellow 4 contact blocks in the Vault-1 Control west aggregator panel.
    If any of the O2 sensors alarm, these blocks will loose continuity with each other.


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Testing Connectivity Between Main and Remote Units
--------------------------------------------------

#. On the face of the main unit and remote unit, press mode until DIAG flashes on the display. Press enter, in return:

    - All LEDs on the units will light.
    - The units will alarm.

        - Vault-1 / Vault-1 Control
        - RF-1 / Accelerator Lab
        - Hutch-1 / Hutch-1 Control (top)
        - Astrella enclosure / Hutch-1 Control (bottom)

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Testing Alarming
----------------

#. Using compressed gas (electronics duster will work fine), spray the gas into the main controller sensor until the unit sees an :math:`O_2` concentration of less than 19%.

    - The main and remote units will audibly alarm.
    - The ELDs for AL1 to flash. More AL# LEDs may flash depending on if you break the 17% and or 15% thresholds. 
      However, the AL1 relay is what is critical.
    - The Vault-1 Control IONIZING RADIATION INTERLOCK protocase AREA MONITOR OXYGEN lamp will turn :red:`red`.
    - Relay contract #9 in the Vault-1 Control west aggregator panel LEDs will turn off.
    - The correct :yellow:`yellow 4` contact blocks will lose continuity with each other.
    - Corresponding :orange:`orange` beacon to the unit being tested will flash.
    - These units have latching alarms.
      Press the bottom left recessed button to rest the alarm. 

        - Vault-1 / Vault-1 Control
        - RF-1 / Accelerator Lab
        - Hutch-1 / Hutch-1 Control (top)
        - Astrella enclosure / Hutch-1 Control (bottom)

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Emergency Tungsten Shutter Crash
--------------------------------

#. Secure Hutch-1.

#. Set the BEAM SELECT to DIVERGENT.

#. Spray compressed gas into a O2 unit. In response:

    - Hutch-1 Control Ionizing Radiation Interlock protocase lamps for Beam Status turn :red:`red`. 
    - The DIVERGENT shutter (closest, upside down shutter) is closed.