J.P. Instruments EDM-900 Manuale
For Your Safe Flight Page 1
Pilot’s Guide
Engine Data Management
EDM-900
Primary
TSO/STC
Copyright 2011 J.P. Instruments, Inc.
All Rights Reserved
J.P. INSTRUMENTS INC.
Information: P. O. Box 7033
Huntington Beach, CA 92646
Factory: 3185-B Airway Ave.
Costa Mesa, CA 92626
(714) 557-3805 Fax (714) 557-9840
www.jpinstruments.com
Printed in the United States of America Rev B
Page 2 Engine Data Management
Table of Contents
Section 1 - Section-1 Getting Started 5
View Angle 5
Rotation 7
Fuel Flow Computer Basics (independent of fuel quantity) 7
Display Screen Basics 8
Horizontal Display Mode 8
Vertical Display Mode 9
Remote Annunciate Light Basics 9
RPM and MAP Display Basics 10
Linear Bar Graph Display Basics 10
LeanFind Basics 12
Section 2 - Interpreting Data 13
Operation for each Phase of Flight 13
Typical Normal Measurements 15
Section 3 - Displays and Controls 18
Control Buttons 18
Scanner Displays 20
Additional Displays Hobbs, Revisions, and Alarm Limits 22
Dimming the Display 23
Section 4 - Operating Modes 23
Automatic Mode 23
Manual Mode 24
Section 5 - Lean Find 26
Lean Find Procedure—General Explanation 31
Expanded Leaning Procedures 34
Common Misapplications 35
Section 6 - Fuel Flow Operation 36
Fuel Management 36
Start Up Fuel 37
Resetting ‘USD’ 38
Trip Mode (Accumulate Trip Totalizer) 38
Scanner Fuel Flow Display Select 38
Section 7 - Alarms 39
Section 8 - Memory and Data Download 40
Downloading Data from the EDM 40
Transferring data from the USB Flash Drive to a PC 41
Section 9 - First Time Setup and Customization 41
Section 10 - Adjusting Manifold Pressure & %HP 46
Adjusting the HP Constant for Rich of Peak Operation 46
Adjusting the MAP 46
Adjusting the HP Value 47
Section 11 - Programming the Fuel Flow 48
Fuel Flow K factor 48
Programming Trip Mode 51
Setting the GPS Com Format 51
For Your Safe Flight............................................... Page 3
Troubleshooting the EDM 53
Diagnostic Testing on Startup and During Flight 53
Diagnostic Messages 53
Section 12 - Appendices 55
Shock Cooling (CLD) 55
Navigation Data Formats 57
Navigation Data Ports for GPS Comm 57
Interface connections to selected GPS models 57
Section 13 - Technical Support 58
Page 4 Engine Data Management
Product Features
Hands-free, automatic scanning
Lean Findfinds the first and last cylinder to peak with
true peak detect—eliminates false peaks
Displays both leaned temperature below peak and peak
Battery voltage with alarm
Amperes (load or charge/discharge meter)
Programmable alarm limits
Exhaust Gas Temperatures (EGTs) to stable 1°F
resolution
DIF low to high EGT with alarm
Shock cooling monitored on every cylinder
Fast response probes
Non-volatile long term memory
Records and stores data up to 30 hours
Post-flight data retrieval
Data retrieval software
Oil pressure
Oil temperature
Turbine inlet temperature, if applicable (optional)
Outside air temperature
Compressor discharge temperature (optional)
Carburetor temperature or induction temperature
(optional)
Fuel pressure, if applicable
Fuel level Voltage, Resistive or Capacitive (frequency)
Fuel Flow
Solid-state rotor fuel flow transducer
Fuel quantity in gallons, kilograms, liters, or
pounds
Low fuel quantity alarm
Low fuel time alarm
GPS interface
Instantaneous fuel flow rate
Total amount of fuel consumed
Total fuel remaining
Time to empty at the current fuel flow rate
RPM and manifold pressure
Automatically calculates percent horsepower
Hobbs® timer
Remote Auxiliary Display (RAD)
For Your Safe Flight............................................... Page 5
Section 1 - Section-1 Getting Started
This is a summary of basic operation. Detailed descriptions of all
operations appear later in this Pilot’s Guide.
EDM-900 primary instrument has preset alarm limits and
cautionary ranges per the POH (user cannot change them)
typically for the following measurements of: oil temperature, oil
pressure, fuel pressure, fuel quantity, cylinder head temperature,
turbine inlet temperature, manifold pressure, and RPM.
Note: Fuel quantity gauges must be calibrated to the aircraft and
will not be functional until the fuel calibration process has been
performed.
View Angle
The best view angle for the pilot is in the horizontal mode with the
buttons on the bottom. The best Portrait mode is with the buttons
on the right.
View angles are per the table below:
Horizontal
Left
65 Degrees
Viewing
Right
65 Degrees
angle
Vertical
Up
60 Degrees
Down
50 Degrees
Page 6 Engine Data Management
List of abbreviations and acronyms
Gauge Function
Message Area
Alarm Abbreviation
Primary
Primary
Engine rotational speed
RPM xxxx
Engine Manifold Pressure
MAP xx.x in hg
Engine Cylinder Head Temp
CHT2 xxx oF
Engine Oil Temperature
O-T xxx oF
Engine Oil Pressure
O-P xxx oF
Fuel Pressure
F-P xx PSI
Fuel Flow to engine
F-F xx.x GPH
Comp. Discharge Temp.
CDT xxx oF
Turbine inlet Temp. Left side
TIT-L xxxx oF
Turbine Inlet Temp. Right side
TIT-R xxxx oF
Single Turbine Inlet Temp.
TIT xxxx oF
Non-Primary
Non-Primary
Exhaust Gas Temp.
EGT2 xxxx oF
Shock Cooling of CHT
CLD xx o/MIN
Differential Temp. of EGT
DIF xx oF
Bus Voltage
Volts xx.x
Amperage Load
AMPS xx
Outside Air Temp.
OAT xx oF
Estimated Time to Empty
Est. T to E xx:xx H:M
Fuel used to date
USED xx.x GAL
Estimated Remaining fuel
Est. REM xx GAL
Estimated Fuel required to Waypoint
Est. WP REQ xx GAL
Estimated Fuel Remaining at
Waypoint
Est. WP RES xx GAL
Nautical Miles per Gallon
ECON xx.x MPG
Brightness, Dim control
DIM/BRT
For Your Safe Flight............................................... Page 7
Rotation
Holding the step button in for 5 seconds, with the engine OFF, will
produce the gray arrow. This arrow can be rotated to a new up position
by tapping the LF button to rotate and then the STEP button for save. If
you chose the one bad angle (Landscape mode with the buttons on top
and the JPI logo upside down), return the instrument to JPI and JPI will
rotate the screen with the buttons on the bottom.
Fuel Flow Computer Basics (independent of fuel quantity)
The fuel flow computer tracks the fuel flowing to the engine and
computes various values based on this. At installation, then each time
you refuel the aircraft, you must inform the EDM about how much
useable fuel is onboard. This is done via the REFUEL function.
See page 36 for detailed information
Control Button Basics
Four operating buttons control all functions of the EDM. These buttons
change labels depending on the current state of the EDM.
STEP LF DIM
(3rd)ALL /TEMP/FUEL
(1st) (2nd) (4th)
Page 8 Engine Data Management
Display Screen Basics
The display screen is arranged into three sections. The top left is the
MAP and RPM section. The bottom left is the Scanner® section or
message area. On the right side are the horizontal primary strip gauges.
Non-Primary gauges have a digital read out only. The instrument ranges
and alarm limits are configured to match those of your aircraft POH when
the EDM is set up as a Primary instrument. TIT column is to the right of
the last EGT/CHT when applicable.
Horizontal Display Mode
For Your Safe Flight............................................... Page 9
Vertical Display Mode
Remote Annunciate Light Basics
The Remote Annunciator Light ‘RAL’
provides notification that an alarm is present
in the display, for all Primary gauges. Upon
power up, the RAL shows Red and yellow
indicating it is functional. Before each flight,
confirm that it is functional. Non-functioning
RAL must be repaired before flight.
Remote
Annunciator Light
(RAL)
Page 10 Engine Data Management
Horizontal mode Vertical mode
RPM and MAP Display Basics
In the vertical mode to the right and the
Horizontal mode above MAP (Manifold Pressure)
and RPM (Revolutions per Minute) are shown.
Operations exceeding red line cause the digital
value to turn red or yellow with the RAL coming
on and a digital value in the Scanner message
area.
Linear Bar Graph Display Basics
The Bar Graphs section contains dedicated bar graphs with digital
display. An example is shown here. Pointers move horizontally left to right
showing value changes and digital readouts turn red
when primary
exceedances
occur. Non
primary
functions flash
white.
Horizontal/Landscape mode Vertical/Portrait mode
Altri manuali per EDM-900
2
Indice
