AMillin
Member
I installed two ETX680C batteries. I have dual GRT HX units.
I ran without the signals connected to the EFIS for six weeks. They crank like monsters. The normal top-off draw after start takes a minute or two. Everything is good, time to hook the signal wire into my GRT EFIS.
I connected the EarthX signal wires to my HX analog inputs. I configured per the EarthX instructions. I tested the warning by grounding the GRT Analog input wire. It worked as expected.
I came back four days later and the voltage on the batteries was down. The signal wire connection was the only change made to the aircraft. When the master switches are off the batteries are disconnected completely with contactors. Under normal circumstances, there was no way for the batteries to discharge.
I spoke with Reg at EarthX. He said the signal wire will float around 2 volts. I confirmed this with a meter. With everything off, there was 2 volts flowing. Reg said the signal wire can provide up to 100ma.
OK, how do use the signal wire without having my batteries discharge?
Thanks,
Andy
I ran without the signals connected to the EFIS for six weeks. They crank like monsters. The normal top-off draw after start takes a minute or two. Everything is good, time to hook the signal wire into my GRT EFIS.
I connected the EarthX signal wires to my HX analog inputs. I configured per the EarthX instructions. I tested the warning by grounding the GRT Analog input wire. It worked as expected.
I came back four days later and the voltage on the batteries was down. The signal wire connection was the only change made to the aircraft. When the master switches are off the batteries are disconnected completely with contactors. Under normal circumstances, there was no way for the batteries to discharge.
I spoke with Reg at EarthX. He said the signal wire will float around 2 volts. I confirmed this with a meter. With everything off, there was 2 volts flowing. Reg said the signal wire can provide up to 100ma.
OK, how do use the signal wire without having my batteries discharge?
Thanks,
Andy