Wrong MAP pressure displayed

[barbeau]

I fly a Dynamic with Rotax 912S, always and noticed very high MAP pressure during take off.
This afternoon I decided to check MAP pressure display on Skyview.
Engine off, local pressure was 1017 Mb and MAP pressure displayed on SkyView was 1038. So I thing MAP pressure displayed is wrong.
Is there a way to adjust MAP pressure displayed to fix the wrong parameter?

 

[Dynon]

There isn't a way to adjust that. But first, know that those values will only match at sea level. Perform this test: Adjust your baro until your altitude reads zero. That's when the baro setting and the MAP should be the same.

 

[barbeau]

Thanks
To do the check, the local baro was giving by airfield control (QFE )
So engine OFF, the MAP pressure should be the same?
Is there à way to manualy modify sensors files extracted from SV?
Many thanks in advance
Bernard

 

[dynonsupport]

They should only be the same if you are at sea level. You need to adjust the baro until the altitude reads zero, and then your MAP should match your BARO setting.

 

[barbeau]

Thanks, I live close to Atlantic cost, I'll do it soon and I'll come back to you

 

[barbeau]

As promise, I did the test at sea level (LFDN > 60 fts means 2 Mb) as you advised. Baro adjusted to get altitude 0 > 1007 Mb. Local controler confirmed local pressure.
Engine OFF MAP was 1033?
Once again is there a way to manualy adjust MAP curve within sensor files extracted from SV?
If NOT what is your advice?

 

[Dynon]

It sounds like that might be the sensor, then. There isn't a way to recharacterize it. Give our technical support a call at 425-402-0433 or an email at support at dynonavionics dot com.