Guide (Airlock) Atmosphere to Atmosphere

2020-01-05T23:49:25Z

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[[Category:Guides]][[Category:Atmospherics]]
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==Description==
An Atmosphere to Atmosphere Airlock is a [[Room]] that can evacuate its internal volume and refill it with either of the two differing [[Atmosphere]]s it connects. It has two airtight [[Portal]]s which do not open simultaneously. An Atmosphere to Atmosphere Airlock allows passage between two environments without the exchange of [[Gas]]es or [[Pressure]].

An Atmosphere to Atmosphere Airlock can be controlled automatically using a [[Circuitboard (Advanced Airlock)]] installed within a [[Console]] which will refer to each of the two separated environments as either "interior" or "exterior".

When activated with the interior-portal open, the system will automatically close the interior-portal and will activate the interior-[[Active Vent|Active-Vent]] to try to evacuate the interior-atmosphere from the airlock chamber. Once a total vacuum is achieved within all of the [[Large Grid Atmosphere|Large Grid Volume]]s in which selected [[Gas Sensor]]s reside, the airlock will activate the exterior-Active-Vent to try to pressurize the chamber with exterior-atmosphere. Only after the internal pressure within all of the Large Grid Volumes in which selected Gas Sensors reside equals or exceeds the "External ###Pa" specified in the [[Circuitboard (Advanced Airlock)#Settings|Circuitboard's settings]] will the exterior-portal automatically open.

When activated with the exterior-portal open, a similar process to the above is executed, swapping interior for exterior, exterior for interior, and the final airlock pressure governed by the "Internal ###Pa" setting instead.

==Materials==
Material requirements for a minimnum Atmosphere to Atmosphere Airlock are:
* 2 x [[Portal]]: variants of either [[Kit (Airlock)]], [[Kit (Blast Door)]], [[Kit (Door)]], or [[Kit (Docking Port)]]
* 1 x [[Kit (Consoles) Console|Kit (Consoles) Console]]
* 1 x [[Circuitboard (Advanced Airlock)]]
* 1 x [[Glass Sheets]]
* 1 x [[Data Disk]]
* 1 x [[Kit (Sensors) Gas Sensor]]
* 2 x [[Kit (Active Vent)]]
* 2 x [[Kit (Passive Vent)]] (optional)
* 1 x [[Kit (Flashing Light)]] (optional)
* 1 x [[Kit (Power Controller)]] (optional)
* 4 x [[Kit (Pipe)]]
* # x [[Cable Coil]]

==Construction==
A minimum Atmosphere to Atmosphere Airlock can be constructed using the following instructions:

# Place two [[Portal]]s one [[Large Grid]] apart with the power and data ports facing into the airlock's interior.
# Using the [[Labeller]], rename each portal as "Interior-Door" and "Exterior-Door" appropriately.
# Ensure the "Exterior-Door" is OPEN, and the "Interior-Door" is CLOSED.
# Enclose the six remaining sides of the airlock chamber with airtight [[Frames]], [[Walls]], or [[Windows]].
# Place [[Console]], [[Active Vent]]s, [[Gas Sensor]], and optional [[Flashing Light]] and [[Power Controller]] somewhere within the airlock's interior.
# Ensure all placed devices are attached to the same [[Wire Network]] including the portals' power and data ports.
# Ensure the airlock's wire network is connected to an active [[Power Supply]] and all devices can receive power.
# Using the Labeller, rename each Active Vent as "Interior Vent" and "Exterior Vent" appropriately.
# Attach a [[Pipe Network]] to each Active Vent large enough to hold the volume of the airlock or pass it through to a [[Passive Vent]] placed in the "interior" or "exterior" environment.
# Ensure "interior" and "exterior" pipe networks are not connected together or to any other pipe networks.[[File:Guide adv airlock bare.jpg|thumb|advanced airlock with 2 walls removed for better visibility]]
# Insert [[Circuitboard (Advanced Airlock)]] into the console, then place the [[Glass Sheet]] onto the console.
# Insert [[Data Disk]] into the side slot of Console then power on the Console.[[File:Guide adv airlock config0.png|thumb|slot to insert data disk]]
# Use the console's up and down arrows to scroll through the list of devices. Click to select. Click again to deselect if incorrect
# Find and click "Exterior-Door" followed by all caps and green "EXTERIOR". NOTE: SELECT THIS FIRST![[File:Guide adv airlock config1.png|thumb|make sure to click the exterior door and vent first]]
# Ensure the Exterior-Door's lock-indicator has turned from green to red.
# Find and click "Exterior-Vent" followed by all caps and green "EXTERIOR". NOTE: SELECT THIS SECOND!
# Find and click "Interior-Door" followed by all caps and green "INTERIOR".
# Ensure the Interior-Door's lock-indicator has turned from green to red.
# Find and click "Interior-Vent" followed by all caps and green "INTERIOR".
# Find and click "Gas Sensor" followed by all caps and green "SENSOR".
# Find and click "Flashing Light" followed by all caps and green "LIGHT". (optional)
# Toward the top left of the Console find and click "External ###Pa". Set to match the exterior-environment's typical pressure. (optional)
# Toward the top right of the Console find and click "Internal ###Pa". Set to match the interior-environment's typical pressure. (optional)[[File:Guide adv airlock config3.png|thumb|set pressures appropriate to each side]]
# Remove Data Disk from the side slot of Console.
<br>If there is an error the console screen will say so and the power light will flash yellow.

==Console Slaves==
Additional consoles are useful when airlocks become large or remote control is desired. Multiple [[Circuitboard (Advanced Airlock)#Console Slave|Console Slave]]s can be attached using the following instructions:

# Using the [[Labeller]], rename the original [[Console]] as "Master Console".
# Place additional consoles such that they all attached to the same [[Wire Network]] connected to the "Master Console".
# Using the Labeller, rename each additional console as "Slave Console 1", "Slave Console 2" ...
# Insert [[Circuitboard (Advanced Airlock)]] into each additional console, then place a [[Glass Sheet]] onto the additional consoles.
# Insert [[Data Disk]] into the side slot of the powered on "Master Console".
# Use the "Master Console's" up and down arrows to scroll through the list of devices. Click to select. Click again to deselect if incorrect
# Find and click "Slave Console #" followed by all caps and green "MAKE SLAVE" for each additional console.
# Remove Data Disk from the side slot of "Master Console".
# Power on each additional console.
<br>If there is an error the console screen will say so and the power light will flash yellow.

==Troubleshooting==
When powered, all associated doors and vents are locked, preventing their manual use even when power is subsequently denied. This can be a problem when trapped within an airlock during a power outage. Best practise is to ensure the airlock's wire network is connected to an emergency [[Power Supply]] such as a [[Battery Cell]] equipped [[Power Controller]].

If the "External #Pa" or "Internal #Pa" are set to 0, the corresponding pressurization phase will be skipped, speeding up the cycle time, but can result in large wind currents when doors open.

A pressurization phase will stall if there is not enough gas available to the interior or exterior [[Active Vent]] to reach the set "Internal #Pa" or "External #Pa" specified in the [[Circuitboard (Advanced Airlock)#Settings|Circuitboard's settings]]. Such stalled pressurization can be skipped by clicking the yellow "Cancel Pressurize" button on a console.

A depressurization phase will stall if a complete vacuum cannot be achieved within the [[Large Grid Atmosphere|Large Grid Volume]]s in which all selected [[Gas Sensor]]s reside. Such stalled depressurization can be skipped by clicking the yellow "Cancel Depressurize" button on a console, but atmospheric mixing may occur. In larger airlocks, ensure there is one Gas Sensor per Large Grid to prevent premature repressurization and the resulting mixture of interior and exterior atmospheres.

==See Also==
* [[Guide (Airlock)]]
* [[Guide (Airlock) Atmosphere to Vacuum]]
* [[Guide (Airlock) Docking Ports]]

* [[Circuitboard (Advanced Airlock)]]
* [[Circuitboard (Airlock)]]
* [[Kit (Airlock)]]
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Guide (Airlock) Atmosphere to Atmosphere

File:Guide adv airlock config3.png

File:Guide adv airlock config1.png

File:Guide adv airlock bare.jpg

File:Guide adv airlock config0.png