J.P. Instruments EDM 930 Primary Primary Installation Manual - Manual (Page 35)

FAA Approved Installation Manual for the Report No 908
EDM-900 and EDM-930 Page 35 of 50 Rev J
Primary Engine Data Management System Date 5-24-2014
END? Y END? Y STEP exits the pilot programming mode.
LF reenters pilot programming mode.
32. Programming the HP Constant
You must adjust the HP Constant once for your aircraft. You must perform this adjustment in the air while the aircraft is
in flight 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—for example— HPC = I25. Then hold both the STEP and LF buttons display
until you see ADJUST, followed by HPC= I25. The adjustment range for the HP Constant is 45 to 180.
3. Set the MP and RPM per your POH to 70 percent power. Let conditions stabilize.
4. Change the HP reading on the EDM-900 to 70 percent by adjusting the HP constant in the lower display by holding
or tapping the LF button. Percent HP should be close to 100 percent during takeoff at sea level.
5. Tap the STEP button to proceed to the next step.
33. Programming the MAP
Sets the manifold pressure calibration .
You may need to correct the MAP based on the altimeter setting at a sea level airport.
1. Enter the pilot program mode by simultaneously holding the Step and LF buttons for five seconds.
2. Tap Step/OK repeatedly until you see—for example – MAP adjustment 0.0 . .
3. Then hold both the first two buttons until you see ADJUST, followed by MAP+0. The adjustment range for the
MAP is ±2.0 in Hg. As you adjust the MAP up or down you will see a change in the MAP gage under RPM. When
you see the correct setting stop.
4. Tap the Step/OK button to proceed to the next step or hold both buttons again to exit setup.
Do this one time and only if the MAP on your manifold pressure gauge doesn't match the MAP shown on the EDM-960
You must do this on the ground with the engine turned off.
.
34. Selecting Fuel Pressure Type (EDM-900 only)
To properly display Fuel Pressure values, the EDM must be told what type of Fuel Pressure sensor is connected to the
EDM. This is normally set at the factory for new installations. To set or modify the type of Fuel Pressure sensor
connected to the EDM, follow these steps:
1. Enter Pilot Program Mode by holding the STEP and LF buttons for 5 seconds
2. When the EDM enters Program Mode, tap the button labeled “NEXT” until END? Is displayed in the scanner
message area.
3. Again hold the STEP and LF buttons until the EDM enters Factory Program Mode.
4. After
“Factory” is displayed in the scanner message area, tap the NEXT button until FUEL PRESSURE = is
displayed in the scanner message area.
5. Hold the STEP and LF buttons until the word ADJUST appears in the message area
6. Tap the PLUS or MINUS buttons to change the selected Fuel Pressure sensor type.
7. To save the selected value, hold the STEP and LF buttons until the word SET appears in the message area.
8. Tap
the STEP button repeatedly until the message END? is displayed in the message area
9. Tap the button labeled YES to save changes and restart the EDM.