J.P. Instruments EDM 740 Pilots Guide - Manual (Page 12)

Page 12 Engine Data Management
Typical display configurations by model and mounting orientation
The EDM-730/830 series features the ability to be mounted either in
landscape or portrait orientation. Display layouts will differ as a result of
configuration differences. You may examples of the EDM-830 and
EDM-730 are shown below:
EDM-830 6 Cylinder
(landscape orientation)
EDM-730 6 Cylinder
(portrait orientation)
EDM-830 6 Cylinder
(portrait orientation)