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Mimosa Devices Overdrawing

Posted: Mon Aug 22, 2022 12:46 pm
by thewisp
Hello All,
Thanks for your time.

We've got dozens of Netonix and Mimosa devices throughout the network. Today I discovered some odd power consumption from two Mimosa devices on the same site.

I've power cycled both, without any change. Anyone else run into this before?

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Re: Mimosa Devices Overdrawing

Posted: Mon Aug 22, 2022 3:38 pm
by thewisp
Oddly enough, I just had a tech swap ports 2 and 9. The issue did not follow the port. Nor did it follow the device.

The Mikrotik device in Ether2 is pulling it's expected 40W~.
The Mimosa B5c moved from Ether2 to Ether9 is pulling it's expected 12W~. Not the 80W~ it was pulling when plugged into Ether2.

However, Ether3 still reports an overdraw of watts.

Still no idea what to think of this. Image

Re: Mimosa Devices Overdrawing

Posted: Thu Sep 15, 2022 5:55 pm
by thomas
looks like a blown current sensor, pretty easy fix if oyu know how to solder

Re: Mimosa Devices Overdrawing

Posted: Thu Sep 15, 2022 7:20 pm
by lligetfa
I concur... it is a blown current sensor. Usual culprit is excess current from insufficient grounding (bonding).