Why the real scan time is longer than the estimated time?

Heart rate is paramount as well as rhythm. If the beat is irregular, the sample is discarded, then the system waits for several beats and starts sampling again.
I couldn't ever get a full scan to complete, and if I tried to do quarter scans, I would have to do 1, wait two days, do the next, etc. to get them done.
I used 1 quarter scan and ran those results for 4 days (or more), then did the next quarter scan, ran it, etc.
 

There are a few things to consider here.

The speed of the scan depends on your resting heart rate. So the estimated time of just over an hour maybe close but is just an estimate.

The scan needs to process 3,800 frequencies. For each of these frequencies, it needs valid data from the pulse unit.

3,800 frequencies, scanned one every second (using an average heart rate of 60 BPM) would take 63 minutes.

However, if your resting heart rate is slower, the scan will take longer due to the slower rate of data coming in from the pulse.

Furthermore, if you have at any time a bad data read from the pulse, it will pause the scan.

To resume, it needs 4 consecutive valid reads before continuing.

If you get one bad data read every 10 seconds, the scan will take 50% longer, and that is provided that you don't have more than one bad read. So now the 1 hr scan just turned into a 1 hr 30 min scan.

Sources that contribute to bad reads. Too loose of a sensor when worn, too tight (constricts blood flow), weaker pulse rate for that day, bad sensor location, etc.

To help with sensor placement, try to wear it on the left side as the pulse is stronger here.

Also, it helps to know that the sensor is taking readings by shining a light through your tissue and monitoring the shadows that are cast by blood cells.

So don't wear the ear sensor over a piercing hole, wear the finger sensor on a fingernail (there are two dimples inside which need to be on flesh), etc.

I hope this helps you get your scans going again with good results.

For more details, please check the link:
https://www.facebook.com/groups/spooky2/permalink/733202736841632/

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