Wierd amperage reading

[dahugo]

I have a D180 and installed the ammeter shunt in position A showing flow into and out of battery. During a short flight today whike cycling thru the ems pages to monitor the system i noticed amps reading anywhere fron -99 to -60. The voltage looked fine so i assume it was some kinda anomoly. When i got on the ground and rechecked all readings were normal.

What could cause this reading?

 

[jakej]

Most likely a bad electrical connection of the shunt to D180 wires particularly check out the crimps & fuses at the shunt end.

 

[Dynon]

Yeah, first thing to do is to check the wiring to the shunt.