Apex power usage alarms

[Dub_G]

This morning woke up to several power alarms from my Apex. At first I just thought it was return pump but then I noticed it was all of the pumps giving me a warning. Then I look at the power usage graph and all of my pumps are showing the same drop at the same time. See attached screenshot.

Any ideas what is going on here? Everything looked ok with the tank this morning before I left for work.

Thanks

 

[DLHDesign]

How odd... I can't think of anything that makes any sense. Perhaps someone on the #reefsquad has an idea.

 

[rkpetersen]

I've not seen that before.

Did your numbers return back to the normal range, or stay low?

Could your area have experienced an electrical 'brownout' at around midnight?

Or, if everything seems to be operating totally normally, perhaps there's an error in the EB832 metering.
If I suspected that I'd probably try rebooting the Apex first and see what effect that had, if any.
There is a way to reset an EB832 power meter but it's a bit tricky.
https://forum.neptunesystems.com/sh...d-undervoltage&p=115586&viewfull=1#post115586

 

[Dub_G]

It returned to normal later today. Not sure why or what caused this but at least it is back to normal.

 

[rkpetersen]

That's good.

So, sharply decreased for about 7 hours, and then came back just as quickly.

What's the trace of your EB832 incoming line voltage look like?

 

[Dub_G]

Not sure what you mean by trace of incoming line. The EB832 is plugged into a large UPS for back-up.

 

[rkpetersen]

Instead of the Power Log, go to the Input Log page, and then pull down the menu to your EnergyBarName (V) in the Energy Summary section.
But if you've got it on a UPS, presumably it would have taken corrective action and alerted you if there was a brownout.
So still puzzling.