J.P. Instruments EDM-760 TWIN Pilot'S Manual Download Page 64

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Index

Accumulate, 40, 44

total, 32

Adapter probe, CHT, 24
Adding fuel, 31
Adjusting

K-factor, 42
TIT, factory original, 41

Alarm limits

changing, 46
factory defaults, 45
fuel flow, 49

Alarms, 28

low fuel, 50
priority, 28
resetting, 28

ALL, 35, 37, 40

select switch, 30

Allied Signal, 51
Arnav, 51
Automatic indexing mode, 9
Automatic mode, 13
AUX, 49
Auxiliary tanks, 50
Avgas, 29
Aviation data format, 51

Bar graph, 5

CHT, 8
column resolution, 8
EGT, 8

Baud rate, 53
Blinking display, 16, 21, 28, 29
Brightness, display, 9
Buttons

front panel, 9

CAL ERR, 13
Calibration, 13

K-factor, 42
TIT, factory original, 41

Capacity, fuel tank, 30
CARB?, 49
Carburetor, 50

ice, 26

Celsius

display indicator, 6
OAT, 39

Changing alarm limits, 46
CHT

probe, 3, 24
too high or too low, 24, 27
trend display, 8

CLD.

See

Shock cooling,

See

Shock

cooling

Climb, 22
Combustion, 3, 29, 54
Compression, 4, 26

high, 29
low, 27

Connector

option pins, 53

Cooling.

See

Shock cooling,

See

Shock

cooling

Cowling, obstruction, 26
Cruise, 22
Custom programming, 39

alarm limits, 45
fuel flow option, 42
Long Term Memory Option, 45

Cylinder numbers, 6

Data

Page 58

Engine Data Management

Summary of Contents for EDM-760 TWIN

Page 1: ...exing Displays peak EGT value AUTO INDEX parameters indexed automatically MANUAL INDEX parameters indexed when STEP is tapped LEANFIND starts LeanFind procedure release buttons release LF button hold LF button How to interpret CHT trends page 8 reset an alarm page 28 lean turbocharged engines page 22 set start up fuel page 31 diagnose engine problems page 25 accumulate total fuel page 32 calibrate...

Page 2: ...mperature TIT 2 additional channels either OIL CRB or second TIT 1 Outside Air Temperature OAT 1 System Bus Voltage BAT Resolution and Display Range Fuel Flow Option display maximum display value resolution K factor range 5 000 to 99 990 10 Fuel flow Accuracy 8 to 60 GPH 1 140 0 GPH at K factor 85 000 0 1 GPH 410 0 GPH at K factor 29 000 0 1 GPH 820 PPH at K factor 85 000 1 PPH 2400 PPH at K facto...

Page 3: ...Data capacity Typical 760 790 6C at 6 seconds up to 15 hours With F F and TIT s it is 10 to 15 hours with a sample rate every 6 seconds Recording rate programmable every 2 seconds to 500 seconds ...

Page 4: ... J P Instruments Inc All Rights Reserved Printed in the United States of America J P INSTRUMENTS Information P O Box 7033 Huntington Beach CA 92646 Factory 3185 B Airway Avenue Costa Mesa CA 92626 714 557 3805 Fax 714 557 9840 http www jpinstruments com Rev N 09 2017 ...

Page 5: ...3 Modes 13 Automatic Indexing Mode 13 Manual Indexing Mode 14 LeanFind Mode Leaning Rich of Peak 14 LeanFind Procedure General Explanation 17 Operation for each Phase of Flight 21 Common Misapplications 23 Section 4 Diagnosing Engine Problems 24 Alarms 28 Pre Ignition and Detonation 29 Data Logging 29 Section 5 Fuel Flow Option Operation 30 Select Switch 30 Fuel Management 32 Measurement Indexing ...

Page 6: ...tting Long Term Memory Option Parameters 45 Alarm Limits 45 Fuel Flow Alarm Limits Units Fuel Capacity 49 Section 9 Fuel Flow Option Formats Diagnostics 50 Navigation Data Formats 50 Setting GPS C Fuel Flow Communications Format 51 Diagnostic Messages Fuel Flow 51 Navigation Data Ports for GPS Comm 53 Section 10 Option Connector Pin Assignments 53 Section 11 Reference Reading 53 Section 12 Technic...

Page 7: ...button 1 STEP for 5 seconds until you see an arrow pointing to up Use button 2 LF button to rotate the arrow through until the arrow is pointing the chosen direction for up Tap button 1 STEP and the unit will reboot in the correct orientation The EDM 790 also features a micro USB port in the front of the unit for downloading flight data The same procedure is followed as the other JPI EDM s 730 740...

Page 8: ...bes Real time serial data port Fuel Flow Option Solid state pulse generating rotor fuel flow transducer Fuel quantity measured 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 and Time to empty at the current fuel flow rate Long Term Memory Option Records and stores data e...

Page 9: ...ng the LeanFind procedure With the EDM 760 790 it is now possible to have substantially more diagnostic information available to you in a timely and usable manner The included data memory permits you to record all measurements for later down loading to your laptop or USB Thumb drive Benefits of Proper Mixture Control Improved engine efficiency Reduced maintenance costs Greater fuel economy Reduced...

Page 10: ...ication of the quality of the combustion process Low compression non uniform fuel distribution faulty ignition and clogged injectors diminish the efficiency of the combustion process that generates power From the cockpit you can adjust the fuel air ratio by a process called leaning Retarding the mixture control changes the fuel air ratio and hence the resulting Exhaust Gas Temperature EGT The foll...

Page 11: ...ak power occurs at a mixture using more fuel than at peak EGT Best economy occurs at peak EGT Accurate leaning yields optimal engine temperatures By being able to precisely adjust the mixture your engines can produce either the highest fuel economy or maximum power whichever you choose A single EGT gauge merely gives you an average of each cylinder s temperature some cylinders can be too rich whil...

Page 12: ...he face of the EDM 760 is the analog display I40 I I452 STEP LF _ MAX _ J P I 1 2 3 4 5 6 T F L R P 390 363 EGT CHT EDM 760 CHT shown on calibrated scale EGT bargraph range is 825 F half redline to 1650 F N or P indicates Normalize or Percent view TIT bargraph OIL as missing segment Dot indicates which cylinder temperatures are shown in the digital display Digital temperature in F or C 1 2 3 4 5 6...

Page 13: ... is shown numerically in the EGT and CHT digital display Normalize and Percentage View Indicators Percentage view when there is a P at the top of the display the columns indicate percent of EGT red line Each column is composed of a stack of segments A maximum height column depicts 100 percent of red line and a one segment high column depicts 50 percent of red line For example if the red line is 16...

Page 14: ... Normalize view and then change your power setting causing all columns to go off scale high or low Set to the Percentage view before adding or reducing power Always set Percentage View when beginning your descent Bar Graph EGT and CHT Each column in the bar graph is composed of a stack of segments The total height of each column represents the EGT and the missing segment in the column represents t...

Page 15: ...lay to adjust to ambient lighting conditions Modes There are three standard operating modes of the EDM 760 790 Automatic indexing Manual indexing and LeanFind These modes will be described in more detail beginning on page 13 Most of the time you will operate the EDM 760 790 in the Automatic indexing mode When you first turn on the power the EDM 760 790 starts in the Manual indexing mode but will e...

Page 16: ... hold will be used to denote pressing and holding a button for five seconds or longer STEP Button Located on the lower left side near the instrument face In the Automatic indexing mode tapping the STEP button will stop indexing and change to the Manual indexing mode Then each tap of the STEP button will display the next measurement in the sequence In the LeanFind mode tapping the STEP button will ...

Page 17: ...F button for 3 seconds In the LF mode holding the LF button after peak EGT is found will display peak EGT Long Term Memory Option only in the LF mode tapping the LF button will mark a data record in memory Secondary functions of the LF button include In the pilot programming procedure holding or tapping the LF button is used to increment or decrement parameter values and toggle between yes and no ...

Page 18: ...Measurement Example Comments Voltage System Bus Outside Air Temperature 14 2 81 BAT OAT Battery voltage and OAT F or C Difference between hottest and coolest EGT 80 EGT 52 DIF DIF Dot indicates most widely deviating cylinder Measurement Example Comments EGT CHT 1340 1430 376 385 EGT left CHT right Dot indicates cylinder TIT Turbine Inlet Temperature 1370 1450 TIT TIT Oil Temperature 177 180 OIL OI...

Page 19: ...n is self tested in sequence while the EDM 760 790 tests internal components calibration and integrity of the probes If a problem is found it will be displayed as OPEN PRB or CAL ERR followed by the name of the probe or channel During flight probes are constantly checked for inconsistent or intermittent signals A faulty channel or probe encountered during start up or during flight will be deleted ...

Page 20: ...imultaneously Excluded measurements display a decimal point before the measurement name For example Included I84 OIL Excluded I84 OIL Tapping the STEP and LF buttons simultaneously will toggle back and forth between include and exclude You can program whether every time you turn on the EDM 760 790 it will remember which measurements were excluded or defaults to none excluded See on page 49 All ins...

Page 21: ... to lean about 20 rich of peak With the advent of GAMI injectors it is now possible to set the mixture lean of peak saving fuel and running the engine cooler Teledyne Continental recommends lean of peak for the Malibu This manual primarily describes the rich of peak method and provides the procedure for the lean of peak method The factory default method is set to rich of peak but you can change th...

Page 22: ...40 0 80 100 85 90 95 80 Percent power Specific fuel consumption Too lean Lean Rich Full Rich Take off EGT CHT First cylinder to peak Use for Rich of Peak leaning Last cylinder to peak Use for Lean of Peak leaning with GAMI injectors Peak Power Best economy range GAMI spread Page 16 Engine Data Management ...

Page 23: ...50 12 4 Flashing cylinder number column indicates leanest cylinder SET means that the peaked cylinder is set into the display Due to thermal inertia this will usually be about 10 F lean of peak 7 If you hold LF peak EGT will be displayed while the LF button is held down 1560 PEAK Captured peak EGT value is displayed 8 Slowly enrich the mixture the temperature will increase returning to peak Stop e...

Page 24: ...ne you lean the one that first indicates a 15 EGT temperature rise The examples below assume the left engine is leaned first Begin leaning the mixture When a 15 rise occurs the LeanFind mode becomes activated shown when the cylinder number above the column of the hottest cylinder begins flashing LeanFind is not active if a cylinder number is not blinking With the Fuel Flow Option instead of seeing...

Page 25: ...nier mixture control turn the knob about a quarter turn every five seconds With a non vernier or quadrant mixture control lean slowly and smoothly about 1 16 inch every five seconds Eventually one cylinder will reach peak before any of the other cylinders The EDM 760 790 will determine this automatically Notice that this cylinder does not necessarily have the hottest EGT The EDM 760 790 will indic...

Page 26: ...ng the peak EGT or the number of degrees below peak If you lean too much the EGT will drop and the engine will be operating lean of peak I560 I452 STEP LF _ MAX _ J P I 1 2 3 4 5 6 T F L R P SET EGT EDM 760 Leaning RICH of Peak PEAK EGT 1 2 3 4 5 6 T 300 400 500 CHT column of LEANEST cylinder flashes EGT of the LEANEST cylinder displayed with the word SET dot indicates LEANEST cylinder and flashes...

Page 27: ...Peak 1 2 3 4 5 6 T 300 400 500 CHT Temperature below peak of the last cylinder to peak Current fuel flow rate Largest column is the first cylinder to peak Shortest column is the last cylinder to peak Fine Tuning the Mixture Fuel flow is the critical issue in the leaning process Uniform fuel distribution to all cylinders results in the best economy and smooth operation Estimate the uniform fuel dis...

Page 28: ...ing at the turbine inlet The reduced size of the JPI Hastaloy X tip probes produces faster response and more accurate than the massive factory installed probe Therefore JPI probes may read as much as 100 F higher than the factory installed probe However note that the engines were certified with the factory installed probe and gauge and this gauge reading is the limiting factor when adjusting your ...

Page 29: ...ged injector or leaking manifold gasket on a carbureted engine If all EGT columns go off scale to the top of the column be sure you are not in Normalize view as indicated by the symbol NRM to the left of the horsepower display At high density altitude an overly rich mixture can significantly reduce engine power Cruise After the engine is warmed up use LeanFind to lean the mixture Suggested setup N...

Page 30: ... on page 15 Pausing during leaning Lean continuously do not pause Retarding mixture too slowly Lean more quickly Peak not found Leaning too quickly Lean at the speed of approx 10 F per sec Off scale EGT bars too high or low EDM 760 790 is in the Normalize view and later observe off scale EGT bar readings Set to Percentage view First cylinder to peak is not the hottest This is normal The first to c...

Page 31: ...e 200 minute tightly cowled Bonanza helicopter Maintain a cooling rate of less than 60 minute You will find that the cylinder with the greatest shock cooling will shift from front cylinders during climb out to the rear cylinders during descent If one CHT is reading 20 to 50 above or below the others this may be due to that cylinder having a spark plug gasket probe instead of a bayonet probe This i...

Page 32: ...l Have plugs checked 50 Increase or decrease after ignition system maintenance Improper timing high EGT retarded ignition low EGT advanced ignition Check EGT for each mag to determine any uneven timing 50 Loss of EGT for one cylinder Engine rough Stuck valve Other cylinders are okay Have valve train checked 50 Loss of EGT for one cylinder no digital EGT Failed probe or failed wire harness Swap pro...

Page 33: ...e Engine units set to Celsius Check for change in manifold pressure Set alarm limits to Celsius degrees 50 Slow rise in EGT Low CHT Burned exhaust valve CHT is low due to low power output Have compression checked 50 High CHT on cylinders on one side of engine Obstruction under cowling Check for improper installed baffling cowl flap misalignment or bird nests 50 EGT on one cylinder jumps up and dow...

Page 34: ... in 100 Octane engine Enrich mixture reduce power and relean mixture Repeat to find power setting where normal peak is obtained or run rich 50 Below 10 000 ft full throttle causes EGTs to rise Weak or defective mechanical fuel pump Apply booster pump If EGTs drop replace fuel pump 50 CHT more than 500 EGT normal Adjacent EGT may be low Leaking exhaust gasket blowing on CHT probe Look for white pow...

Page 35: ...larm indication for the remainder of the flight See Alarm Limits on page 47 Alarm Priority If multiple alarms occur simultaneously the higher priority alarm will temporarily hide the lower priority alarm s When an alarm occurs note the cause of the alarm and tap the STEP button to clear the alarm indication so that you will be notified of any other alarm that might have occurred The alarm prioriti...

Page 36: ... this book Look for trends as well as absolute values DIF is a good indicator of the overall health of the engines Typical values are less than 80 F for a factory new fuel injected engine and less than 150 F for a carbureted engine If you discover a DIF spread greater than this identify the effected cylinder and initiate preventive maintenance Trend data for EGT and CHT is also of value Any depart...

Page 37: ...tanks you can use the auxiliary tank feature to select either filling to the tank tabs or topping the tank See Main Tank Capacity and Auxiliary Tanks beginning on page 31 to program the EDM 760 790 for this feature The EDM 760 790 does not differentiate fuel flow between the main and auxiliary tanks it considers only total fuel in the aircraft During flight you may also inform the EDM 760 790 of s...

Page 38: ...ed units Hold the LF button to count up tap the LF button to count down The count up will stop at full tanks since you cannot add more fuel than would top the tanks If you added fuel to only the main tanks then input how much you added If you topped the main tanks but have some fuel remaining in the auxiliary tanks input how much is now in the auxiliary tanks You can add a negative amount of fuel ...

Page 39: ...ime of flight is only an approximation and assumes a constant fuel flow rate for each phase of flight The EDM 760 790 Fuel Flow Option uses a small turbine transducer that measures the fuel flowing into each engine Higher fuel flow causes the transducer turbine to rotate faster which generates a faster pulse rate Because the transducer turbine generates thousands of pulses per gallon of fuel it ca...

Page 40: ...ple Comments T A Voltage System Bus Outside Air Temperature 14 2 81 BAT OAT Battery voltage and OAT F or C T A Difference between hottest and coolest EGT 80 EGT 52 DIF Dot indicates most widely deviating cylinder F A Fuel Flow Rate 13 5 14 2 GPH Or KPH LPH PPH F A Fuel Used Each Engine 28 0 27 1 USD Since last refueling or trip total each engine F A Fuel Remaining Time to Empty 45 2 01 38 REM H M ...

Page 41: ...00 seconds At a later time transfer them to a USB Thumb Drive as an intermediate courier or laptop PC When you retrieve recorded data to your laptop PC you can choose to retrieve all the data in stored in the EDM 760 790 or only the new data recorded since your last retrieval In either case no data in the EDM 760 790 is erased The data will be saved in the PC in a file in a compressed format The a...

Page 42: ...rval from 2 to 500 seconds even in flight When you change the interval in flight the current flight file is closed and a new flight file is created with the new recording interval At power on the EDM 760 790 will execute its self test and then display the date 1 12 99 the time 13 26 the percentage of memory filled since the last save FULL 24 and the Aircraft ID Transferring Data from the EDM 760 t...

Page 43: ...your laptop to the airplane Download Box 3 Insert the small round plug into the data connector on your aircraft instrument panel and the other end into the computer serial port 4 Start running the downloaded program in the PC referring to the instructions supplied with that program 5 Simultaneously hold the STEP and LF buttons for five seconds You will see the word PROGRAM for two seconds Tap the ...

Page 44: ...XP through Windows 10 When the File Download window appears select double click the Download Now button Open the downloaded exe file then click on Run The program will now be automatically installed onto your computer Transferring Recorded Data To transfer recorded data to your Thumb drive proceed as follows 1 With the EDM 790 powered on and in the normal scan mode install the JPI provided USB Thu...

Page 45: ...Section 10 Start running the downloaded program in the PC referring to the instructions supplied with that program For Your Safe Flight Page 39 ...

Page 46: ...he LF button to select alternate values of that item The shaded areas in the chart below pertain only to the Fuel Flow Option Select switch Tap STEP to advance to the next item Tap LF to sequence through these values Comments T F A PROGRAM Stays on for two seconds T F A FUEL N N Y Y Yes to change fuel status see page 31 T A RATE 4 0 9 Indexing rate in the Automatic Indexing Mode Selecting 0 disabl...

Page 47: ...See text below F A KF 29 00 RT 05 00 99 99 Used to set and fine tune the K factor See text below F A ACCU M N USD ACCU M N ACCU M Y N No Upon informing the EDM 760 that you refueled the aircraft reset total fuel used to 0 Y Yes accumulate total fuel used rather than reset to 0 F A GPS C 2 TO GPS 0 5 GPS Com Format T F A DUMP N MEM N NEW ALL Long Term Memory Option only Select to transfers ALL or o...

Page 48: ...____ EDM ________ If you haven t already done so start the pilot programming procedure by simultaneously holding the STEP and LF buttons for five seconds You will see the word PROGRAM for two seconds Tap STEP to advance to the next item Tap the LF button to sequence through these values Comments PROGRAM Stays on for two seconds RATE 4 RATE 4 hold both STEP and LF buttons simultaneously for five se...

Page 49: ... decimal point three places to the left For example if the K factor on the fuel flow transducer is 29 123 enter 29 12 in the K factor parameter The K factor can be changed in the pilot programming procedure When the K factor is changed during a trip calculations of fuel used fuel remaining and time to empty are not retroactively recalculated Fine Tuning the K Factor The K factor shown on the fuel ...

Page 50: ...ch tank 3 Record the current K factor here left_________ right_________ and in the table below 4 Calculate the Adjustment ratio Adjustment ratio 1 2 New K Factor x Adjustment ratio 1 Every time you fine tune the K factors record the measurements here Left Engine Date EDM 760 fuel used actual fuel used Current K factor Left Right New K factor x Left Right Page 44 Engine Data Management ...

Page 51: ...conds You will see the word PROGRAM for two seconds 1 Tap STEP button to advance to the screen 29 00 KF LFT 2 Hold both the STEP and LF buttons simultaneously for five seconds First digit blinks 2 9 00 3 Tap or Hold the LF button to change flashing digit I 9 00 4 Tap STEP button for next digit I 9 00 5 Tap or Hold the LF button to change flashing digit I 8 00 6 Tap STEP button for next digit I8 0 ...

Page 52: ...ocedure simultaneously hold the STEP and LF buttons for five seconds You will see the word PROGRAM for two seconds To change the date time and user id for the Long Term Memory Option tap the STEP button until the display shows DUMP NO Next simultaneously hold the STEP and LF buttons for five seconds Then set the date and time as show below Tap STEP advances to next item Tap the LF button to sequen...

Page 53: ...BAT 12 V 12V 16V 17 6 BAT LO FUEL 45 min 00 20 H M LO TIME 10 gal kg ltr lbs 7 2 REM If you change the display to Celsius be sure to change the alarm limits to Celsius degrees This is not done for you automatically When an alarm is displayed tapping the STEP button will temporarily delete that measurement from the sequence for the next ten minutes When an alarm is displayed holding the STEP button...

Page 54: ...FAC LIM Tap STEP button until the words END Y Hold both buttons for 5 seconds until the word PROGRAM The display will then sequence as shown in the chart below Tap the STEP button to advance to the next item in the list Tap the LF button to select alternate values of that item Hold the LF button to increase a numerical value tap the LF button to decrease a numerical value The shaded areas in the c...

Page 55: ...0 DIF 30 DIF 990 DIF EGT difference limit set in 10 increments 450 H CHT 90 H CHT 500 H CHT high limit set in 5 increments 60 CLD 5 CLD 200 CLD Cooling limit set in 5 min increments 1650 TIT 650 TIT 2000 TIT Also sets the maximum scale of the EGT and TIT bar graph 230 H OIL 40 H OIL 500 H OIL Oil temperature high limit set in 5 increments 90 L OIL 10 L OIL 250 L OIL Oil temperature low limit set i...

Page 56: ...method is retained after power off Y Lean of Peak is default N Rich of Peak is default MIN 10 0 31 BRT Set low light display brightness from 0 to 31 END Y END N Y Yes to exit N No to review list again Fuel Flow Alarm Limits Units Fuel Capacity Fuel Flow Units Selects the units in all measurements where fuel quantity or fuel rate is displayed If you change this parameter it does not change the nume...

Page 57: ...and auxiliary tanks it tracks only total fuel in the aircraft Low Time Alarm Limit Select the value of the time remaining in minutes that triggers the alarm Time remaining is calculated at the current fuel flow rate Low Fuel Alarm Limit Select the value of the fuel remaining in the selected fuel flow units that triggers the alarm Fuel remaining is calculated at the current fuel flow rate Carbureto...

Page 58: ...Y Setting GPS C Fuel Flow Communications Format GPS C Input to GPS output of EDM 760 0 No fuel data output 1 Garmin Shadin Miniflow format 2 Allied Signal format B 3 Arnav EI fuel data 4 Allied Signal format C 5 not assigned 6 UPS Garmin fuel air data Diagnostic Messages Fuel Flow The following displays indicate a malfunction in the Fuel Flow Option transducer or associated electrical connections ...

Page 59: ... 760 790 and the Auto Protocol setup is in process Verify correct output format setup in GPS receiver check GPS connections NO SIG message and measurements REQ RES MPG are missing GPS receiver has insufficient signal for valid data NO WPT message and measurements REQ RES are missing No waypoints are programmed into the aircraft GPS receiver REQ or RES message Your ground track is more than 70 from...

Page 60: ...0 Output format is determined by the GPS C setting but may be over ridden by the GPS navigation format If the EDM 760 790 senses Northstar or NMEA 183 navigation data input there will be no fuel data output Section 13 Option Connector Pin Assignments P3 middle 15 pin connector Fuel Flow Option 15 pin connector Pin no Pin no Probe or function Pin no Function yel 1 red 2 Left TIT 1 RS 232 out yel 3 ...

Page 61: ...y 93 Technical Reviews and Original References For those pilots who have engineering backgrounds the references listed below present the original research on the combustion process and represent the source documents for those with technical interests A Hundere Autogas for Avgas AOPA Pilot October 1969 A Hundere and J Bert Pre ignition and Its Deleterious Effects in Aircraft Engines SAE Quarterly T...

Page 62: ...3185 B Airway Avenue Costa Mesa CA 92626 800 345 4574 jpinstruments com Page 56 Engine Data Management ...

Page 63: ...ion requested This warranty is void on any product which has been subject to misuse accident damage caused by negligence damage in transit handling or modification which in the opinion of JPI has altered or repaired the product in any way that effects the reliability or detracts from the performance of the product or any product whereon the serial number has been altered defaced effaced or destroy...

Page 64: ...nking display 16 21 28 29 Brightness display 9 Buttons front panel 9 C CAL ERR 13 Calibration 13 K factor 42 TIT factory original 41 Capacity fuel tank 30 CARB 49 Carburetor 50 ice 26 Celsius display indicator 6 OAT 39 Changing alarm limits 46 CHT probe 3 24 too high or too low 24 27 trend display 8 CLD See Shock cooling See Shock cooling Climb 22 Combustion 3 29 54 Compression 4 26 high 29 low 27...

Page 65: ...national 51 Engine diagnosis chart 25 limits normal 24 run up 21 Enunciator alarm 28 Exclude measurements 13 Exhaust leak 27 EzCapture 35 F Factory default alarm limits 45 Factory original TIT probe 41 Fahrenheit display indicator 6 OAT 39 Failure to pre lean 23 FF select switch 30 Fill options 31 FILL N 30 FILL 31 First cylinder to peak 17 Flashing display 16 21 28 29 Flat EGT response 27 Fouled ...

Page 66: ...alve 25 K K factor changing 40 44 determing 42 L LBAT 48 Leak manifold 27 Lean of Peak 19 Default 49 Lean of Peak Leaning 19 Leanest cylinder 16 LeanFind button 10 description 9 mode 14 procedure 16 Leaning 4 See also LeanFind by TIT 20 pre leaning 17 too quickly 23 LF See LeanFind LOIL 48 Long Term Memory Option mark 35 operation 35 Low fuel alarm 50 M Magneto check 21 MAIN 49 Manual indexing mod...

Page 67: ... option connector 53 Power best 4 Pre ignition 27 29 Pre leaning See Leaning pre leaning Priority alarm 28 Product support 54 Programming 39 alarm limits 45 data recording 45 fuel flow option 42 R Range normal temperature 24 Rate baud 53 fuel flow 33 indexing 41 shock cooling 23 Real time 49 Record on off 49 Recording See Long Term Memory Option RECRD 49 Red line 24 Reference reading 53 REM 34 Rem...

Page 68: ...support 54 Test self 13 Time set 45 Time to empty 34 Timing ignition 25 TIT 12 20 34 factory original probe 41 Toggle N P 7 Top fuel tanks See Fill Total fuel 32 used 33 34 Transducer fuel flow 33 Transferring recorded data 35 36 38 Turbocharged Engines 20 U Uniform CHT EGT not 26 Units fuel flow 49 USD 33 34 User ID set 45 V Valve lifter 25 stuck 25 Vapor 27 View change diagram 10 normalize perce...

Page 69: ...For Your Safe Flight Page 63 ...

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