Plot Line Chart (Industrial Logging) without Aggregation

The Y-axis in a line chart functions as a value axis, inherently performing aggregation, much like a pivot table in Excel.

However, it's essential to note that the aggregation always occurs at the level of each point-to-point interval on the X-axis. For example, if you have data recorded every second with the date and time on the X-axis categorized accordingly, the chosen aggregation method—whether it's sum, average, minimum, or maximum—will consistently display a single value for each interval . This is because the aggregation is accurately filtered to the specific point, resulting in the same value for that particular interval . The X-axis of the graph should be "categorical" 

I put on the attached picture graph and table with "don't summarize", you can see that the values are equal:

The issue with the instruments in your case is that you can't show the same time stamp for every occurrence,
X-Axis cannot have duplicates, so you need to filter the graph by instrument or work with a hierarchy
or from instrument to logs and then it would look like this (my country is your instrument) :

or from instrument to timestamp and it would look like this:

the file with the hierarchies is attached

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