Phoenix Inverter 12V 500VA Negative Current calibration

Hello i used the search button and this topic was already discussed, i can understand that the current measuring components in the inverter are not the best but i need to calibrate the reading via software if possible (VenusOS RP)

With no load the inverter reads -0.2A altering all the DC power readings adding 46W of loads and its really annoyng, i have some experience with linux but i don't know how i can add a +0.2A to the reading and what to edit.

I could also act on the board if there is something that can be done to calibrate it.

When the inverter was new the readings were good.

Thank you.

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runar-borge commented · May 06, 2021 at 10:57 AM

Hi Alexandru!

I have the exact same issue as you, but didn't notice your post until after i posted my own post..

Anyways i've created a small workaround for this issue by not allowing the negative reading from the inverter to pass back to the total count. https://community.victronenergy.com/questions/87555/dc-power-shows-incorrect-consumption-on-unloaded-p.html , i would not consider this as a fully working fix until victron can fix its code, so consider it is a workaround for now...

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