MGL Avionics User Forum

We have recently installed our iEfis lite and is now starting to learn more about the functionality and features. Really fun and rewarding phase.
One thing that seems a bit odd is that the accelerometer readings seems erratic.

Here is a link to an unlisted youtube video describing the issue. I am thinking that there might be some way to "dampen" the signal to make it a bit more calm? You can see my analogue G-meter up to the left in the video. The air was realtively calm and the machine does not have any unusual vibrations other than the usual ones in the RV-4.

Any help is welcome, we have done adjusments of the attitude (AHRS - flight level offsets)
We have also done the accelerometer calibration using a spirit level to make sure the panel was straight up and level.

https://youtu.be/OCV0dgduyHY

Thanks for sharing. My iEFIS lite 8.5” does the same thing.in an RV8. I sent it to MGL Torrance and they couldn’t find a problem.
I have a hunch is a limitation related to the vibration of the panel itself.
Mike

I have an MX1 and it does the same thing. I couldn't fix it, so I removed the G-Meter and slip/skid from the screen. I think it's encouraging from a builder standpoint that we are having similar issues rather than me just doing a bad install.

I also have a wildly inaccurate and unstable density altitude reading. Anyone else?

LaneRM wrote: ↑Mon Aug 07, 2023 1:04 am I couldn't fix it, so I removed the G-Meter and slip/skid from the screen.

@LaneRM , Did you use the panel designer software to remove the G-meter? One thing I thought about is how to configure the G-Meter Arc visibility.
Now it seems that it is activated at 1.5G, I was thinking of changing the value when it gets visible to, say, 2G instead. However I could not find that specific configuration anywhere. Is it possible or is it hardcoded in to the G-meter sensor?

Kjelle69 wrote: ↑Mon Aug 07, 2023 1:41 pm Is it possible or is it hardcoded in to the G-meter sensor?

A conditional skip item but hard coded at 1.5G. Unfortunately no provision for editing the limit.

Kjelle69 wrote: ↑Mon Aug 07, 2023 1:41 pm @LaneRM , Did you use the panel designer software to remove the G-meter? One thing I thought about is how to configure the G-Meter Arc visibility.
Now it seems that it is activated at 1.5G, I was thinking of changing the value when it gets visible to, say, 2G instead. However I could not find that specific configuration anywhere. Is it possible or is it hardcoded in to the G-meter sensor?

I did use the panel design software. I changed everything I could change on the G-meter configuration, but could never get it to stop erroneously coming on. If you need help with the software let me know - it's a pretty easy change.