J.P. Instruments EDM 930 Primary Pilots Guide User Manual
Page 47

For Your Safe Flight
Page 42
Adjusting the HP Constant for Rich of Peak Operation
To fine tune the %HP readout, follow this procedure airborne between
5,000 and 8,000 feet MSL.
1. Enter the pilot program mode by simultaneously holding the
STEP
and
LF
buttons for five seconds.
2. Tap
STEP
repeatedly until you see HP Constants. Hold both
NEXT
and Button 2 until you see ROP and LOP appear in status bar. Tap
ROP
.
Now HP Constant 125 should appear. Hold both
NEXT
and
Button 2 until you see ADJUST momentarily. Adjustment range for
the HP Constant is 50 to 300.
3. Set the MP and RPM per your POH to 70 percent power. Let
conditions stabilize.
4. Adjust the HP Constant value
PLUS
or
MINUS
so that the %HP
reading on the display equals ‘
70
%HP
’. Note: this is the percent of
maximum horsepower.
5. Hold both
NEXT
and Button 2 until you see SET.
Adjusting the MAP
This procedure allows you to adjust the MAP to the altimeter setting at a
sea level airport. NOTE: If airport is not at sea level, use the
correction table to derive corrected sea level altimeter setting).
1. Enter the pilot program mode by simultaneously holding the
STEP
and
LF
buttons for five seconds.
2. Tap
NEXT
repeatedly until you see MAP ADJUSTMENT +0.0.
Then hold both the
NEXT
and Button 2 until you see ADJUST
momentarily.
3.
Adjust the value using the
PLUS
or
MINUS
until the value equals the
altimeter setting (sea level airport). The adjustment range for the
MAP is ±3.0 inHg.
4. Hold both
NEXT
and Button 2 until you see SET.