ColombiaJohn
New Member
Hello. This is my first post so please be gentle!
I recently bought a new Ultralight high-wing plane with a Rotax 912 engine (100hp). I also bought the Dynon EFIS 100 and EMS 120 combo. Between the two is a Garmin 327 transponder, Icom 210 radio, and Garmin 495 GPS (we don't have XM in South America). I also got 2.25" Uma guages for RPM and airspeed. See attached photo.
The aviation electrician just installed the equipment and he said that I can't use the RPM on the EMS at the same time as the UMA tach, I think because there is not enough voltage coming from the engine to run both tachometers. Does that make sense?
The electrician's idea was to put a switch on the dashboard so I can choose which tach I want active, but I am not happy with that solution. I can't be the only person with a Dynon EMS and a back-up tachometer, can I? Does anyone have any ideas for me?
Thanks very much.
I recently bought a new Ultralight high-wing plane with a Rotax 912 engine (100hp). I also bought the Dynon EFIS 100 and EMS 120 combo. Between the two is a Garmin 327 transponder, Icom 210 radio, and Garmin 495 GPS (we don't have XM in South America). I also got 2.25" Uma guages for RPM and airspeed. See attached photo.
The aviation electrician just installed the equipment and he said that I can't use the RPM on the EMS at the same time as the UMA tach, I think because there is not enough voltage coming from the engine to run both tachometers. Does that make sense?
The electrician's idea was to put a switch on the dashboard so I can choose which tach I want active, but I am not happy with that solution. I can't be the only person with a Dynon EMS and a back-up tachometer, can I? Does anyone have any ideas for me?
Thanks very much.
