Electronics International MVP-50P - Manual (Page 49)

6.9 “EGT/CHT Bar Graph Limits and Color Setup” Screen:
This screen allows you to program up to five color ranges for each
EGT and CHT cylinder. Every cylinder on an engine has its own
unique operating temperatures. By setting EGT and CHT limits for
each cylinder based on the engines unique operating temperatures,
you improve the MVP’s ability to help detect problems early.
“Function”: This field allows you to select which function (EGT or
CHT) is to be programmed.
“Use same colors for all cylinders?”: This field allows you to
program one set of color ranges for all cylinders or program an
individual color range for each cylinder. If the color ranges are the
same for all cylinders and the max Operating Range is the same as
the redline limit, a red max EGT limit line will be shown on the Bar
Graph Display.
“Cylinder”: Select the cylinder to be programmed.
“Display Units”: The bar graph Color Ranges must be set in units of Fahrenheit however, the bar graph may
be displayed in Fahrenheit or Celsius as defined by this field.
“Display Operating Range (From __ To __ )”: These two fields allow you to set the operating range of the
bars to match the operating range of your engine. When the “Function” is set to EGT, set the “From” field 50°F
below the coldest EGT when operating at full rich cruise. Set the “To” field 20°F above the hottest EGT when
operating at peak EGT cruise (but not above 1650°F). The pilot has access to these settings in the “EGT/CHT Bar
Graph Setup” screen.
When the “Function” is set to CHT, set the “From” field to 250°F. Set the “To” field to the maximum CHT limit for
the engine.
“Color Range 1 to 5”: Each color used in setting ranges of operation have a priority. The priority, starting from
the lowest to highest, is White, Green, Blue, Orange, Pink, Yellow and Red. If one operating range’s color overlaps
another’s, the color with the higher priority will overwrite the color with the lower priority. Normally the colors blue,
orange and pink should only be used to set narrow markers in an arc or Horizontal strip gauge. In the bar graph
display, the entire bar will be shown in the color of its current operating range. When setting color ranges, start with
the lowest value and work up to the highest.
Set the EGT color ranges for each (or all) cylinder as follows:
1. Set a green color range From 0°F To the maximum EGT reading (approx. 1650°F to start) for each
cylinder.
2. If you don’t want to operate your engine near peak EGT, you may want to set a yellow color range for
each cylinder From a predetermined temperature below peak To the maximum EGT reading.
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