Hi there folks,
I am just finishing up my RV12is build and finishing the avionics installation. I have the IFR panel with the GTN650 and dual G3x screens. I am looking for some help isolating some electrical gremlins from anyone who may have built an RV12is?
I am having some unusual electrical readings on the G3x and want to know if someone else who has built one may have had something similar.
1.) When the engine is turned off, but master on, I see 13.2 volts on the voltmeter bar, and 14.1v on the 'EFIS BATT V'. That seems high to me when there is no alternator running? Is this correct?
2.) More concerning is that my AMP meter on the screen is showing 0 at all times even with the engine running, and also my 'Battery Amps' is showing -1.
When I start the engine the voltmeter rises to 13.7 volts which tells me the alternator is doing something (I think), but the AMP meter still shows 0, and the battery voltage continues to show -1 for a while. After running the engine for about 20 mins, the battery voltage went to 0 instead of -1.
I am trying to determine if a.) My alternator is working b.) Why I am not seeing any AMP draw even when I turn on lights, fuel pumps etc.. and c.) why my battery voltage reads low at -1.
Any thoughts or advice would be greatly appreciated.
Thanks,
Hugh
I am just finishing up my RV12is build and finishing the avionics installation. I have the IFR panel with the GTN650 and dual G3x screens. I am looking for some help isolating some electrical gremlins from anyone who may have built an RV12is?
I am having some unusual electrical readings on the G3x and want to know if someone else who has built one may have had something similar.
1.) When the engine is turned off, but master on, I see 13.2 volts on the voltmeter bar, and 14.1v on the 'EFIS BATT V'. That seems high to me when there is no alternator running? Is this correct?
2.) More concerning is that my AMP meter on the screen is showing 0 at all times even with the engine running, and also my 'Battery Amps' is showing -1.
When I start the engine the voltmeter rises to 13.7 volts which tells me the alternator is doing something (I think), but the AMP meter still shows 0, and the battery voltage continues to show -1 for a while. After running the engine for about 20 mins, the battery voltage went to 0 instead of -1.
I am trying to determine if a.) My alternator is working b.) Why I am not seeing any AMP draw even when I turn on lights, fuel pumps etc.. and c.) why my battery voltage reads low at -1.
Any thoughts or advice would be greatly appreciated.
Thanks,
Hugh