You'd think that would be in either installation manual or the user's guide, wouldn't you? If it is, I couldn't find it. Thanks for the link!It looks like the MAP adjustments came with v15.2.0 on 1/4/2018. So you appear to have a pre-adjustment version of the EMS Sensor Config file.
From: https://dynonavionics.com/whats-new-skyview-sensor.php).
15.2.0 1/4/2018
(version 54802)Added: MAP adjustment. To use, adjust the BARO setting until the altimeter reads zero. The baro window is the current MAP pressure. Then, choose the appropriate MAP sensor in EMS configuration to make MAP as good as possible.