Transregional
I love flying!
- Joined
- Feb 6, 2015
- Messages
- 2
I have an EMS D10 installed and all is working fine except for the Tacho. I have two inputs, one from a Mag and the other from the Lightspeed CDI system. Individually they each read the correct RPM and together the reading is steady and correct. During run-up, both systems read correctly. RPM red line is set at 2800. During take-off the RPM constantly has over–read spikes beyond 2800 causing the alarm to be triggered multiply times until such time as the RPM is reduced to 2400, at which point the reading is steady once again. Also during take-off the entire EMS will shut down and restart again, whereupon the unstable RPM spikes and alarms will continue until RPM reduction. Happens every take-off. Any help would be appreciated. Take-off actual RPM is not above 2700 as confirmed by previous tacho, now not used.