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====== 0k Freezer Monitoring Manual ======
===== Grafana dashboard =====
{{ :xnorit:public:manuals:0k_freezermonitoring:grafana_wiki1.png?400|}}
You can visit the Grafana dashboard at [[https://grafana.xnorit.be:2053/dashboards|https://grafana.xnorit.be]]
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Select a panel to view in the "0K_FreezerMonitoring" folder, as shown in the image. 

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==== 'All' vs 'Light' vs 'Full' panels ====
=== Light panels: ===
{{ :xnorit:public:manuals:0k_freezermonitoring:grafana_wiki2.png?400|}}
A panel named with 'Light' provides the user with a quick and simple to read overview, with the drawback that it only contains an limited amount of data and information.

Each monitored freezers is provided with a small indication of the current temperature. Beneath the temperature is a small chart visible.
If a temperature is out of range (As seen for freezer T_209), both temperature and chart change color.

The default color setting is:
  * temperature below -100 = Blue
  * temperature in-between -100 and -60 = Green
  * temperature in-between -60 and -50 = Orange
  * temperature above -50 = Red

Below the temperatures there is a field visible containing "Freezer health".
If a freezer supports this function, the freezer health will detect interruptions in freezer operation (breakdown/failure/AC loss).
Using the default settings, this detection happens within 1 minute.
The shown percentage is a calculated average over the selected time-span inside Grafana. The time-span can be changed in the top right corner. 

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=== Full panels: ===
{{ :xnorit:public:manuals:0k_freezermonitoring:grafana_wiki4.png?400|}}
A panel named with 'Full' provides a more thorough overview of each recorded freezer data, with the drawback of lessened readability.
At the left an 'alert overview' is visible, providing an direct overview on freezers with possible issues.

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For a full screen view of only one chart, click the drop-down menu on top of the chart and click 'view' (see picture).
To share a certain panel using a url, click 'share'.
{{ :xnorit:public:manuals:0k_freezermonitoring:grafana_wiki9.png?800 |}}

The charts contain following information:
  * Freezer health, shown on the right y-axis (purple/pink)
  * Room temperature, shown on the left y-axis (Orange) (Measured within the monitor enclosure resulting in a ~5°C increase in temperature).
  * Freezer temperature, shown on the left y-axis (Blue)
  * Mail alert threshold, shown on the left y-axis (Red) 

If the freezer temperature is below the set threshold, and the freezer health is above 50%, the heart above the chart will indicate a green color.
{{ :xnorit:public:manuals:0k_freezermonitoring:grafana_wiki5.png?800 |}}
If the freezer temperature is above the set threshold, and the freezer health is below 50%, the heart above the chart will indicate a red color (and is broken).
{{ :xnorit:public:manuals:0k_freezermonitoring:grafana_wiki6.png?800 |}}
If the preset alert conditions are met, the alert mode will first go in 'pending' state. The pending state is tagged on the chart using an orange vertical line.
In case that the 'pending' problem is not resolved after (by default) 5 minutes, the state evolves to an alert, this is when en email is send as warning. An alert is tagged on the chart using an red vertical line. 
{{ :xnorit:public:manuals:0k_freezermonitoring:grafana_wiki7.png?800 |}}
When the monitor system operation is interrupted, a gray vertical line is tagged on the chart (NO DATA). This indicates a possible issue with the monitoring system itself. For example when AC power is interrupted. When a problem is resolved, this is indicated with a green line. By default when a problem has been resolved, a secondary mail is send as conformation.
{{ :xnorit:public:manuals:0k_freezermonitoring:grafana_wiki8.png?800 |}}

=== All panels: ===
A panel named 'ALL' contains a 'Light' representation of all connected freezers at a given site.