Pilot’s Guide Engine Data Management EDM-930 Primary TSO Copyright 2010 J.P. Instruments, Inc. All Rights Reserved J.P. INSTRUMENTS INC. Information: P. O. Box 7033 Huntington Beach, CA 92646 Factory: 3185 B Airway Costa Mesa, CA 92626 (714) 557-5434 Fax (714) 557-9840 www.jpinstruments.
Table of Contents Section 1 Getting Started Display View Angle List of abbreviations and acronyms Fuel Flow Computer Basics Control Button Basics Display Screen Basics Remote Auxiliary Display Basics RPM and MAP Display Basics Linear Bar Graph Display Basics Scanner® Display Basics LeanFind Basics Section 2 Interpreting Data Operation for each Phase of Flight Typical Normal Measurements Section 3 Displays and Controls Control Buttons RPM and MAP Displays Scanner Displays Remote Auxiliary Display Hobbs Displ
Section 9 First Time Setup and Customization 38 Pilot Programming Mode 40 Adjusting the HP Constant for Rich of Peak Operation 42 Adjusting the MAP 42 Adjusting the HP Value 43 Fuel Flow K factor 43 Programming Trip Mode 45 Setting the GPS Com Format 46 Section 10 Custom Key Card 46 Section 11 Setting Fuel Calibration Points 47 Getting Started…Collecting Fuel Level Calibration Data using the EDM as a meter.
EDM-930 SYSTEM DISPLAYS EDM-930 Main display Remote Auxiliary Display (RAD)
Product Features Hands-free, automatic scanning LeanFind finds 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
Section 1 - Getting Started Important Note! You must have the remote auxiliary display—RAD— installed on the instrument panel of your aircraft. This is required for FAA certification of the EDM-930 as a primary instrument. Upon start up, the RAD displays the make and model of you aircraft, which must be verified before you can rely on the EDM-930 for use as the primary engine instrument cluster.
Display 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.
List of abbreviations and acronyms Gauge Function Primary Message Area Alarm Abbreviation Primary Engine rotational speed RPM xxxx Engine Manifold Pressure MAP xx.x in hg Engine Cylinder Head Temp CHT2 xxx oF Fuel Flow Compute r Basics The fuel flow Engine Oil Pressure O-P xxx F computer Fuel Pressure F-P xx PSI tracks the Fuel Flow to engine F-F xx.x GPH fuel Comp. Discharge Temp. CDT xxx oF flowing to the engine Turbine inlet Temp. Left side TIT-L xxxx oF o and Turbine Inlet Temp.
3. Adjust? 0.0 GAL: Partial fuel added to existing quantity. See page 29 for expanded information on the refueling process. Control Button Basics Four operating buttons control all functions of the EDM. These buttons change labels depending on the current state of the EDM.. The term tap is used to denote pressing a button momentarily. The term hold is used to denote pressing and holding a button for five seconds or longer. Display Screen Basics The display screen is arranged into three sections.
Remote Auxiliary Display Basics The Remote Alarm Display ‘RAD’ provides alarm display, RPM and MAP, and is located directly in front of the pilot. Upon power up, the RAD shows the Aircraft model, engine type and declares instrument status: ‘Primary’ (if applicable). Before each flight, confirm that it matches your aircraft requirements. RPM and MAP Display Basics The upper half shows the RPM (Revolutions per Minute) and the lower half shows the MAP (Manifold Pressure).
Scanner® Display Basics The EDM Scanner section is located in the lower left area of the screen. It consists of a graphical display of EGT and CHT (and TIT if so equipped) and a digital display that automatically scans the various parameters. You can select Manual Mode by tapping STEP to lock onto the parameter of interest. To return to Automatic scan mode, tap LF followed by tapping STEP. LeanFind Basics Simply pre-lean, then tap the LF button (Lean Find) and begin leaning.
the correct value for EGT difference rich of peak operation at 75% and 65% 7. You can also see what the peak EGT was by holding the PEAK button. 8. Tap STEP to exit the Lean Find Mode. Section 2 - Interpreting Data Operation for each Phase of Flight (worth adding to your run-up checklist) Suggested setup: Engine Run-Up Set engine to run-up RPM Normalize view: Manual mode Verify: uniform rise of about 50°F in all EGTs in single magneto operation.
Suggested setup: Take-Off, Climb, and Full Throttle Operations Standard view Automatic mode Verify: EGTs and CHTs consistent with past climbs. EGTs should be in the 1100 to 1300°F range (100° to 300°F cooler than cruise) due to fuel cooling. Be alert for: high EGT in one cylinder, 300°F above the others may indicate plugged injector or leaking manifold gasket on a carbureted engine. At high density altitude an overly rich mixture can significantly reduce engine power.
Typical Normal Measurements The following chart lists typical normal measurement values that you will observe for most general aircraft engines. Your particular engine’s ranges may not fall within these values.
Engine Diagnosis Chart The following chart will help you diagnose engine problems in your aircraft. Display Symptom Probable Cause Recommended Action TIT ~100° higher than EGTs This is normal 75° to 100° EGT rise for one cylinder during flight Spark plug not firing due to fouling, faulty plug, wire or distributor. Enrich mixture to return EGT to normal. Have plugs checked.
Display Symptom Probable Cause Recommended Action Slow rise in EGT. Low CHT Burned exhaust valve. CHT is low due to low power output. Have compression checked. High CHT on cylinders on one side of engine Obstruction under cowling. Check for improper installed baffling, cowl flap misalignment or bird nests. Rapid rise in CHT of one cylinder Detonation. Reduce power. Sudden off scale rise for any or all cylinders Pre-ignition Full rich and reduce power.
Section 3 - Displays and Controls The EDM monitors engine temperatures, pressures and voltages, assists in adjusting the fuel/air mixture, and helps diagnose engine malfunctions. There are multiple components of the user interface: Four front panel operating buttons below the bottom of the display.
2nd Button In Automatic or Manual modes, tapping the LF button will activate the LeanFind mode. In the LF mode holding the LF button after peak EGT is found will display the peak EGT. In Automatic or Manual modes holding the LF button for three seconds will toggle between Standard and Normalize (NRM) views. In the programming mode, tapping the PLUS or MINUS button will allow you to edit a parameter value.
RPM and MAP Displays The upper left side of the display shows RPM above the MAP. The arcs represent the analog values. Percent horsepower is shown to the lower left of MAP. 63% HP Scanner Displays Scanner EGT and CHT Analog Bar Graph The height of each column represents a EGT or CHT or TIT (if installed) temperature. The graph resolution depends on the programmed span between the top and bottom of the range marks.
Normalize / Standard View To toggle between Standard and the Normalize views, hold the LF button for three seconds until the NRM icon toggles on or off. Note: Normalize cannot be activated while in Lean Find mode. Standard view (when the NRM icon is not lighted): the EGT represent absolute temperature. The top of the columns indicate absolute temperature relative to the adjacent range mark temperature scale.
Linear Bar Graph Displays The linear bar graphs are arranged in a three by three matrix on the right half of the display. A typical layout is depicted here (Note: your actual configuration may vary).
Remote Auxiliary Display See the important note on page 1 regarding the RAD. The remote auxiliary display ‘RAD’ provides redundancy and allows positioning a smaller display directly in front of the pilot. Upon power up the RAD displays the EDM’s programmed configuration (aircraft make and model and primary status). Confirm that it matches your aircraft configuration before using the instrument.
Section 4 - Operating Modes The EDM has four basic operating modes: Automatic, Manual, Program and LeanFind. LeanFind is described in the next section; Program mode is described on page 38, ‘First Time Setup and Customization’. When you first turn on the power the EDM starts in the Manual mode, but will enter the Automatic mode after a few minutes. The Automatic mode provides you with engine monitoring information for the majority of flight conditions. To optimize the mixture, use the LeanFind mode.
Manual Mode To activate Manual Mode, just tap the STEP button. Use the Manual mode when you want to lock on one specific measurement such as shock cooling during descent, or your hottest CHT during climbs. To select the desired parameter, tap the STEP button until it appears. To return to the Automatic mode, tap the LF button and then tap the STEP button. You may completely disable the Automatic mode by setting zero for ‘Auto Scan Rate 4’. See Pilot Programming.
Section 5 - LeanFind The EDM supports two methods of leaning; ROP (Rich Of Peak) and LOP (Lean Of Peak). Note: on power-up, the unit defaults to Rich Of Peak mode, but is easily changed to Lean Of Peak mode. During traditional Rich Of Peak leaning, you’ll finalize the mixture to about 20° to 80° rich of peak (depending on engine operating requirements).
EGT °F below peak The illustration below shows the various relationships between the mixture, fuel flow and engine power: Best Best power economy range range First cylinder to peak. Use Rich of Peak leaning Last cylinder to peak.
Rich of Peak leaning is as simple as: A. B. C. D. Pre-lean your mixture. Tap the LF button (verify ROP appears). Lean mixture until LEANEST flashes (peak found). Enrichen to the desired value ‘Rich Of Peak’. R Procedure 1 Establish cruise at 65 2 to 75% power. Pre-lean the mixture to 50°F estimated rich of peak on any EGT: _________°F. Scanner Example 1490 370 EGT CHT 3 Wait one minute 4 Tap the LF button ROP 5 Lean the mixture at EGT approx. 10°/second without pausing.
Lean of Peak leaning is as simple as: A. B. C. D. Pre-lean your mixture. Tap the LF button (verify LOP appears). Lean mixture until RICHEST flashes (peak found). Enrichen to the desired value ‘Lean Of Peak’. L Procedure 1 Establish cruise at 65 Scanner Example Comments to 75% power. 2 Pre-lean the mixture to 3 4 50°F estimated rich of peak on any EGT: _________°F. Wait one minute Tap the LF button 5 Lean the mixture at 6 7 approx. 10°/second without pausing. (cylinder I.D.
LeanFind Procedure—General Explanation Lycoming and Continental established specific restrictions on leaning that must be followed, such as percent power, climb leaning, and TIT limits. Lycoming recommends operation at peak of EGT at 75% or less power only. Continental recommends operation at peak EGT at 65% or less power only. This guide does not supersede specific recommendations of the engine or airframe manufacturer. It is your responsibility to know your aircraft’s limitations.
Lean Find-Activation: When a 15° EGT rise occurs, LeanFind activates (indicated by a cylinder I.D. box flashing over the number of the hottest EGT). Remember: The LeanFind mode is not active until a cylinder I.D. box is flashing. To show the progress of the leaning process, the EDM now displays the hottest EGT in the left side of the digital display and the fuel flow in the right side. This information allows you to observe the EGT behavior throughout the leaning process.
Lean Find-Rich Of Peak Detection: Eventually, one cylinder will reach peak before any of the other cylinders. The EDM will determine this automatically. The EDM will indicate success in finding a peak by displaying the word LEANEST for two seconds and flashing its corresponding Cylinder I.D. Box. The Scanner® Information Area will also display the current value for the peaked EGT on the left, and the fuel flow value on the right, for final adjustment of the mixture.
Lean Find-Lean Of Peak Detection: Note: This mode should only be used when your engine is equipped with balanced fuel injectors. When using the Lean of Peak mode, you lean until all EGT’s decrease slightly below their respective peaks. The EDM has automatic peak detection and will sequentially indicate leaning progress. When the first EGT peaks, the word LEANEST appears and the cylinder I.D. box highlights the cylinder number. Each column successively drops as leaning continues.
Expanded Leaning Procedures Lean Of Peak mode: During the ‘lean of peak’ process, the EDM hunts for the last cylinder to peak. Ultimately, you want to have ALL cylinders operating on the lean side of peak. You will final adjust your mixture to this cylinder. To provide a unique graphical depiction during lean of peak operation, the columns become inverted after the first EGT goes just beyond peak. Each EGT column then originates from the top of the display and drops downward.
Section 6 - Fuel Flow Operation Fuel Management Without a means of measuring accurate fuel flow, you must rely on the aircraft fuel gauges or total time of flight. Aircraft fuel gauges are notoriously inaccurate (they are only required by the FAA to read accurately when displaying empty). Determining fuel consumption by multiplying time of flight by estimated flow rate is, at best, an approximation, and assumes a constant fuel flow rate for each phase of flight.
Start Up Fuel On power-up, you will be prompted to enter any fuel you might have added to the aircraft (this process updates the REM and USD values). The EDM will flash REFUEL? . If you didn’t add any fuel, simply tap EXIT to quit, otherwise tap NEXT to pick one of the three quickset choices below: Choice 1) MAIN 66.0 GAL : Tap SAVE to accept or NEXT for choice #2. This shortcut sets REM to the MAIN tank value (66 in this case) you set up in your fuel computer. Choice 2) MAIN + AUX 82.
Example A: Aircraft has two fuel tanks with internal tabs. You’ve preset: ‘MAIN = 66’ (33 + 33 usable) ‘AUX = 16’ (8 + 8 usable) When you refuel: ‘MAIN 66.0 GAL’: use this shortcut when filling to the internal tank tabs. ‘MAIN+AUX 82.0 GAL’: use this shortcut when filling to the caps. (only one tank is shown in each of the two scenarios) MAIN 66.0 GAL For Your Safe Flight MAIN+AUX 82.
Example B: Aircraft has two MAIN and two AUX tanks. You’ve preset: ‘MAIN = 60’ (30 + 30 usable) ‘AUX = 14’ (7 + 7 usable) When you refuel: ‘MAIN 60 GAL’: use this shortcut when filling only MAIN tanks (! AUX tanks must be empty). ‘MAIN+AUX 74 GAL’: use this shortcut when filling MAIN and AUX tanks. (only one wing shown in each of the two scenarios) MAIN 60.0 GAL For Your Safe Flight MAIN+AUX 74.
Example C: Aircraft has two MAIN tanks. When you partially refuel, use: ‘Adjust? + 0.0 GAL’: use this to add the amount of fuel you pumped into the aircraft (it doesn’t matter which tanks you added to - the EDM totalizes ALL onboard usable fuel). In this example you will add ‘+ 14.0 GAL’, the same as your fuel slip reads. This will be added to the totalizer REM value. Adjust? + 14.
Resetting ‘USD’ USD is automatically reset whenever you perform REFUEL on your EDM (except if TRIP mode = yes). After filling your tanks and prior to engine start you should inform the EDM that the aircraft has been filled. In this case USD is automatically set to zero. If you forgot and have already started the engine, and then you inform the EDM that tanks have been filled, then some fuel has already been used.
Section 7 - Alarms Whenever a measured parameter falls outside of the normal allowed operating limits, i.e. goes beyond redline, the main display will blink an alert icon. This consists of the current digital value and a flashing red label in the Scanner area and the RAD. For example, if CHT 2 is at 480, and redline is 460, the alert would be displayed as 480 HI CHT2. Other alarm examples are: 2780 HI RPM, 15 LO OIL-PSI, 240 HI OIL-TEMP.
Section 8 - Memory and Data Download The EDM compresses and records all displayed parameters once every six seconds (default) in Long Term Data Memory (note: you can change this rate to be 2 to 500 seconds). This data is retrievable by inserting a USB Drive into the jack on the front of the instrument and following the prompts. You can choose to retrieve ‘ALL’ the data stored in the EDM, or only the ‘NEW’ data recorded since your last retrieval. In either case, the selected data in the EDM is not erased.
Downloading Data from the EDM Downloading is a simple process. Follow the steps below: a. With the EDM powered up, plug the USB flash drive into the EDM USB port. b. Wait for the EDM display to show DOWNLOAD: NEW. c. To download only the new data since the last download, tap the STEP button. d. To download all data in the EDM, tap the CHANGE button to see DOWNLOAD: ALL, then tap STEP. e. You will see a ‘progress indicator’ as the data is copied to the USB flash drive. DO NOT INTERRUPT THIS PROCESS.
Section 9 - First Time Setup and Customization Your EDM comes with most settings programmed. However some settings you will fine tune to your installation and/or preferences. We recommend you perform the following minimum set up: 1. Pilot Programming Mode: Set the GPS Communications format to match your type of GPS. Fine tuning of fuel flow K-factor is important as it affects your fuel computer parameter accuracies. Set the Engine HP equal to your engines rated horsepower.
calibration data is sensible, correct and useable. Note: Please refer to the installation manual for accessing fuel tables and calibration on page 22 item 24.4. Enter the data by putting the EDM into ‘Fuel Table Data’ mode and enter your values into each tanks chart.
Pilot Programming Mode To start Pilot Program Mode, hold both STEP and LF buttons until you see PROGRAM for two seconds. Then tap the NEXT button to advance to the desired item in the list. Hold the NEXT button to back up in the list. Either tap NEXT until you see END? Yes and then tap EXIT or hold both NEXT and LF to save changes. First button advances to NEXT item Second button selects values Program Mode Refuel? Comments Stays on for two seconds. Tap REFUEL to change fuel status.
HP Constant= 125 10 999 Time: 18:23:59 00:00:00 23:59:59 Hold NEXT and button 2 for 5 seconds until you see ADJUST. Use Hours, Minutes, Seconds to adjust. Tap SAVE to save changes. Tap NEXT to skip to next item. Date: 05/14/09 01/01/00 12/31/99 Hold NEXT and button 2 for 5 seconds until you see ADJUST. Use Month, Day, Year to adjust. Tap SAVE to save changes. Tap NEXT to skip to next item. END? Yes END? Yes Yes exits the pilot program mode. No reenters pilot program mode.
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.
Adjusting the HP Value You must set the nominal horsepower of your engine. This value is used to calculate the percent horsepower display. 1. Enter the pilot program mode by simultaneously holding the STEP and LF buttons for five seconds. 2. Tap NEXT repeatedly until you see Engine HP 200. Then hold both the NEXT and Button 2 until you see ADJUST momentarily. 3. Adjust the value PLUS or MINUS to equal your engines HP. 4. Hold both NEXT and Button 2 until you see SET.
1. Record data for three flights of about two to three hours each. Record the actual fuel used for each flight (total pumped to top the tanks) and the EDM USD value prior to shutting down after the flight. ACTUAL USED (Total pumped to top used tanks) EDM ‘USD’ Flight A B C Totals 2. Add up all flight amounts for each column and post Totals in locations and . 3. Record the EDM’s current K factor here ____________________ and in the table below. 4. Calculate the Adjustment ratio: / 2 5.
Entering the K factor This process is used to enter/modify the K factor value in the EDM. 1. Enter the pilot program mode by simultaneously holding the STEP and LF buttons for five seconds until you see PROGRAM MODE. 2. Tap NEXT repeatedly until you see K-Factor 1 29.90 . 3. Hold DIGIT and Button 2 until the first digit flashes (shown here as bolder digit for illustration purposes): 29.90 4. Tap DIGIT to move to the desired digit. 5. Adjust the digits value using PLUS or MINUS as desired. 6.
Setting the GPS Com Format This process allows you to select what GPS communication format the EDM should use when sending fuel flow data to the GPS. See table below with the numeric GPS-C values and their corresponding formats. 1. Enter the pilot program mode by simultaneously holding the STEP and LF buttons for five seconds. 2. Tap NEXT repeatedly until you see GPS FORMAT . 3. Hold DIGIT and Button 2 until ADJUST appears 4. Select desired code value using PLUS or MINUS. 5.
Section 11 - Setting Fuel Calibration Points WARNING: Never add or remove fuel from the aircraft when the master switch is turned on. Fuel quantity gauge performance is affected by many factors, such as the integrity of the sensor performance, the accuracy of the calibration data you collected and entered and most importantly your validation that the EDM fuel quantity gauge is accurate and repeatable after installation and calibration.
Capturing the sender reading at each calibration point: Getting Started…Collecting Fuel Level Calibration Data using the EDM as a meter. 1. With power off, hold in Button 4 (Button 1 being far left) and then turn on power. For each EDM monitored tank, create a paper table with the desired number of calibration points (2 to 5) and at what volume each will be. Number of calibration points to be entered into the system later. The zero gallon point reading is always taken with unusable fuel in the tank.
After you have collected your data After you have collected your data…Entering / Editing Fuel Level Calibration Data The Fuel Table Editor is a spreadsheet type format allowing you to easily see the volume and related calibration values side by side. You can easily navigate through the cells to enter values. 1. With power off, hold in Button 3 (Button 1 being far left) and then turn on power. Wait until you see ‘Do you agree with the disclaimer?’. Tap YES if you agree and wish to continue. 2.
3. Tap USER when you see ‘Do you want to restore user table?’ Note: tapping FACTORY causes the fuel table stored on the Key Card to over-write any previous user entries in the fuel table. Use FACTORY if you want to start from the original factory default. 4. Tap POINTS when you see ‘Do you want to edit the table?’.
5. You see ‘Points in LEFT’, the current calibration points for the LEFT tank. 6. Tap/hold VALUE to change to the desired number of calibration points for this tank (2 to 5). Each Tank can have a different set of calibration points. So 5 points for Main and 2 points for Aux. 7. Tap TANK to select the next active tank and repeat previous step. Continue until all tanks ‘points’ have been set. 8. Tap TABLE. You see ‘Fuel Table Data’ ( White at top of screen) with a table.
9. Tap/hold STEP to select the cell you want to edit. Tap EDIT to change the value. Tap SAVE to record it. Follow the on-screen menus to edit the value. Keep tapping DIGIT to move it across. 10. Repeat previous step until all tanks data have been entered. 11. You see ‘Save fuel tank data?’. Answer SAVE to store all final data values or CANCEL to return to table editing.
Troubleshooting the EDM Common Misapplications Problem Display freezes or may be incorrect LeanFind finds a “peak” too soon Peak not found during LeanFind Off-scale EGT columns, too high or low First cylinder to peak is not the hottest EGTs rise during single magneto check EGTs not uniform during low power operation Situation A power transient could cause the processors to malfunction Failure to pre-lean before performing LeanFind or stopping while leaning Leaning too slowly Lean Find not activated or s
Diagnostic Messages The following displays indicate malfunctions in the system: Startup and Operational Diagnostics 0.0 GPH --- GPH --- H.M OPEN PRB BAD-PRB Zero’s indicate Fuel flow is too low to register Dashes indicate No fuel flow transducer signals Dashes indicate No fuel flow transducer signals Open probe. Wiring to probe is open circuit. Check wiring and crimps. Swap probes to troubleshoot. Bad probe. Erratic reading. May be poor electrical connection. Swap probes to troubleshoot.
GPS Interface Diagnostics Measurements ‘xxx REQ’, ‘xxx RES’ and ‘xxx MPG’ are all missing from the scan. NO - COM message and ‘xxx REQ’, ‘xxx RES’ and ‘xxx MPG’ are all missing from the scan. NO - SIG message and ‘xxx REQ’, ‘xxx RES’ and ‘xxx MPG’ are all missing from the No communications from GPS receiver to EDM. Possibly no connection or aircraft GPS is off. Communications are received by EDM and the Auto-Protocol setup is in process.
Section 12 - Appendices TSO-only differences from Primary Instruments TSO-only models have the following differences from the Primary models. If multiple alarms occur simultaneously, the higher priority alarm will temporarily “mask” the lower priority alarm(s). When an alarm occurs, tap the Clear button to clear the alarm indication so that you will be notified of any other alarm that might have occurred.
JPI Hastaloy-X probes may read as much as 100°F higher than the factory installed TIT probe. However, note that the engine was certified with the factory-installed TIT probe and gauge, and this gauge reading is the limiting factor when adjusting your engine. The user can assign the nine graphs in the bar graphs section to the desired measurements . Most measurements can be excluded from the Automatic mode. Shock Cooling Cooling the cylinders too fast can result in cracking and eventual failure.
Rear Apron Connector Locations For Your Safe Flight Page 58
Connector pin assignments P1 ( for 4 / 6 cyl engine) yel yel yel yel yel yel Pin # 1 red 2 3 red 4 5 red 6 14 red 15 16 red 17 18 red 19 gry 12 red 13 wht 11 wht 24 blk 25 Function OIL T IAT CARB T OAT TIT 1 TIT 2 rem V/T alarm + Power data in data out gnd to engine P2 ( EGT , CHT ) yel yel yel yel yel yel yel yel yel yel yel yel Pin # 1 red 3 red 5 red 7 red 9 red 11 red 14 red 16 red 18 red 20 red 22 red 24 red 2 4 6 8 10 12 15 17 19 21 23 25 Function CHT 1 CHT 2 CHT 3 CHT 4 CHT 5 CHT 6 EGT 1 EGT 2
Navigation Data Formats Output of GPS; input to EDM. The EDM automatically configures itself for one of three industry standard data formats: Format Baud NMEA-183 (Marine Nav Data Format) 4,800 This is the format for most handheld GPS receivers. Loran must have sentences RMA & RMB. GPS must have sentences RMB & RMC. Aviation Data Format 9,600 “Output sentence type 1” Required sentences are: A, B, C, D, E, I and L first character identifier byte.
Section 13 - Technical Support JPI offers both e-mail and telephone technical support. Have your model and serial number ready when you call. Call JPI for a return authorization number before returning any equipment. J.P.INSTRUMENTS Inc. 3185 B Airway Costa Mesa, CA 92626 Call: (800) 345-4574 Web: www.jpinstruments.com or www.JPITech.com Limited Warranty J.P. Instruments Inc. (JPI) warrants all parts in your new EDM to be free from defects in material and workmanship under normal use.
Index * * Pre-leaning procedure:, 22 A Accumulate, 41 total, 31 Alarm priority, 32 Alarm limits, 3, 32 display, 11 Alarms, 32 Alerts, 32 Allied Signal, 42 Automatic mode, 16 Aviation data format, 53 B BAL, 49 Bar graph, 3, 14 column resolution, 12 Baud rate, 53 Blinking display, 20, 21, 25 Button DIM, 11 LF, 11 RoP/LoP, 11 Buttons front panel, 2, 10 C Calibration fuel level, 43 horsepower, 38, 39 internal self test, 46 K factor, 39 MAP, 38 OAT, 36 Carburetor For Your Safe Flight ice, 8 temperature, 17
select switch, 31 too high, 8, 46 too low, 8, 46 Eliminate measurements, 16 Engine diagnosis chart, 8 limits, normal, 7 run-up, 5 Error messages, 46 Exclude measurements, 16 Exhaust leak, 9 EzConfig, 35 F Fahrenheit display indicator, 13 OAT, 36 Failure to pre-lean, 46 Features, 5 FF, select switch, 31 First cylinder to peak, 22 First time setup, 35 Flashing display, 20, 21, 25 Flat EGT response, 8, 9 Fuel accumulate, 31 injectors, 9 injectors, clogged, 6, 8 Octane, 9 pump, 9 remaining, 17 required, 17 res
Leanest cylinder, 20, 21 LeanFind button, 11 procedure, 4, 18 Leaning by TIT, 25 too quickly, 46 LF.
fouling, 5, 8 Standard view, 13 Startup diagnostics, 46 fuel, 2, 27 Stuck valve, 8 Switch, select, 31 T Tachometer.
QUICK REFERENCE Automatic Scan 1. 2. Tap LF. Tap STEP. Exclude Measurement in Automatic Scan (toggle) 1. 2. 3. Tap STEP to index to the measurement to exclude. Tap both STEP and LF to toggle exclude/include status. Decimal point before measurement name means it is excluded from scan. Display Hobbs 1. Download Data in Memory 1. 2. 3. Change Scan Indexing Rate 1. 2. 3. 4. Hold STEP and LF until the display shows PROGRAM, followed by Refuel ?. Tap NEXT, see Auto Scan Rate x.
QUICK REFERENCE Refueled the Aircraft Leaning Rich of Peak Program Mode Power Up REFUEL? REFUEL? NEXT REFUEL EXIT REFUEL 1. 2. 3. 4. 5. Next Item Exit 6. Main 75.0 GAL Pre-lean & wait 20 seconds. Tap LF & see ROP. Lean until LEANEST flashes, then EGT 1485 FF 12.7 appear. Tap LF to see degrees lean of peak: EGT- 23 FF 12.7 Enrich back to rich side of peak, then set desired degrees rich of peak: EGT- 41 FF 13.9 If desired, hold LF to see temp & FF when peak occurred: EGT 1534 FF 13.
