Issue with power loss and level sensor

[arking_mark]

I had a power loss and got unexpected behavior from a level sensor. I believe this behavior is incorrect and possibly harmful.

I have a level sensor for detecting low water. After a power outage (I've simulated this several times), the programmable logic associated with the level sensors fill status is triggered. At no time is the water low, in my case the water level will never change with a power outage.

Further analysis shows this happens with just the profilux losing power.

Disconnecting and reconnecting the sensors does not cause this to happen.

Please help.

[Thilo]

For how long does the sensor state change after a power outage?

[arking_mark]

The sensor state shouldn't change at all it's a low water sensor and the water level doesn't change. The sensor itself is 8 to 12 inches below the water line.

[Thilo]

Yes, but what exactly does the sensor do after a power outage? For how long does it have the wrong state?

[arking_mark]

How would I see that? Its powering on. The level sensor never moves.

[arking_mark]

Bump

[arking_mark]

Yes.

Sent from my SM-G988U1 using Tapatalk

[arking_mark]

Is there an ETA for this fix? I'm heading out to vacation in December and am worried about power outages.

[Thilo]

No, it is not yet clear when the fix will be ready.

[lotharko]

Hello, just to confirm I am experiencing a similar behavior with one opto level sensor in an ATO setting. After reset it will just start. I fixed for now with a delay on the socket, but probably this should not be happening.