Both my screens shut down in just a few minutes when my alternator is not putting out enough voltage (below 2700 rpm on Rotax). Isn't the backup battery supposed to kick in and carry the load?
912ULS. I used to get a narrow green arc on the rpm when the oil temp was below 220 deg. Then I started to get high rpm indications intermittently while in the air when the engine oil temp was around 220 deg. Now I get erratic rpm indications anytime above 4500 rpm no matter what the oil temp...