Result of First Night Test

A project log for CPAP Water Reservoir Monitor - Sleep Apnea

What happens when the humidifier for your CPAP runs dry in the night? It isn't pleasant. Let's fix this.

Scott ClandininScott Clandinin 08/29/2017 at 01:210 Comments

The alarm was triggered in the early morning, but as expected, did not trigger at the correct water amount. The effect of the tube shifting seems to have a pretty large effect, as it triggered with about 120mL of water remaining (when it should have been 60mL). The scale is pretty sensitive to such small changes, so I'll need to firmly secure the hose so that it does not affect the weight measured.

Some kind of circular, adjustable clamp should do the trick.