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Noisy voltmeter

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Achille

Joined: 12 Jun 2017
Posts: 25
Location: Europe

Posted: Wed Nov 28, 2018 11:45 am Post subject: Noisy voltmeter

Hi all,



I have a question about a problem that i have with my new electrical system. 



I have a two way switch with 2 voltmeters, one for the main battery and the other one for the aux, still hot battery.  



When I set this switch on, i have a noise in my headset. And it's the voltmeter one. I wired all my electrical system with the one point ground bus to avoid this kind of problem. 



I set the noisy voltmeter on the ESS BUS, that is after the diode (my diode is set between the main bus and the ESS BUS. (I wired the Z19 diagram from bob electrical system) 



Do you have any advice ? (this week I will try to disconect it from ESS BUS and try on the main bus in a first time.) 



thank you in advance

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