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used as a warning that the engine RPM is dropping too low
on the landing rollout which could result in engine stall.
Min Fuel
N/U [ 0 ]
Minimum Fuel Quantity – Generates a warning when the fuel
flow function’s fuel quantity drops below this limit.
Set to at least enough useable fuel
to provide 30-60 minutes of fuel
at cruise power. Applicable only
if the fuel flow option is installed.
Min Aux (1-6)
Max Aux (1-6)
N/U[ all 0’s ]
Minimum & Maximum for Aux input.
Set limit as needed depending on
the use of the auxiliary input.
Some uses of the auxiliary inputs
do not require limits (such as
manifold pressure) and some do,
such as fuel pressure.
Max H2O
N/U [ 0 ]
Maximum water temperature limit
Set limit as recommended by
engine manufacturer
Min H2O
N/U [ 0 ]
Minimum
water temperature limit. Intended for
troubleshooting engine problems. Also useful as an “engine
not warmed up yet” reminder.
Set limit based on experience.
Max Volt
[ 14.8 ]
Maximum Voltage Limit – Allows for detection of failed
regulator. Loss of correct voltage regulation resulting in over-
charging (and subsequent high voltage) will greatly shorten
the life of the battery, and could be dangerous.
Start with 15.6 volts. Lower as
much as possible without getting
false alarms. Typical limit should
be 14.6 Volts.
Min Volt
[ 11.4 ]
Minimum Voltage Limit – Allows for detection of loss of
charging. This limit is only tested when the engine RPM is
greater than the EGT-RPM setting. This prevents false alarms
on final approach (low RPM) with landing lights on.
Set limit to about 12.8 volts to get
immediate alerting of loss of
charging, although this will cause
low voltage alarm whenever
instrument is on while engine is
not running. Set to 12.4 volts or
less to avoid alarm when engine
not running, but still gives alarm
shortly after battery discharging
has begun.
Max Carb
N/U [ 0 ]
Carb temp warning is generated when the carb temp falls
between the Max Carb and Min Carb Limit.
40-60 deg F
Min Carb
N/U [ 0 ]
See Max Carb
0-20 deg F
Max EGT
[ 1480 F ]
Maximum EGT – Not all engines have published limits, nor
do all engines require a maximum EGT limit. This alarm can
be useful for troubleshooting engine problems also.
Set limit according to engine
manufacturer recommendation, or
based on experience.
Min EGT
N/U [ 0 ]
Minimum EGT – This alarm is active only when the engine
RPM is above the entry for EGT-RPM. This alarm is useful
to detecting the loss of a cylinder, or for troubleshooting
engine problems.
800-1200 deg F, depending on
sensitivity desired. If false alarms
are consistently generated, reduce
the limit to less than 800 deg F,
or set to 0.
Lim-RPM
[ 3000 ]
Defines the RPM at which the following RPM dependant
limits become active. These are: Min EGT, Min Volt, Min
Crz_OP
Set limit to an RPM slightly less
than the RPM used for the MAG
check. This allows the Min Volt
test to become active during the
MAG test to automatically test
for charging.
Max EgtSpan
N/U [ 0 ]
Maximum difference between the highest and lowest EGT.
This limit can be used to help detect changes in normal
engine operation. It is also useful when leaning using the
digital leaning pages, as it is possible to not notice a EGT that
is abnormally low when using these pages to lean the engine.
(Its more obvious on the bar graph pages.)
Set this limit based on
experience. It may take some trial
and error to arrive at a good limit.
After establishing a limit that
rarely generates alarms,
activation of this alarm may
indicate developing engine
problem.
Summary of Contents for 912 Dragonfly
Page 3: ...Page 2 ...
Page 4: ...Page 3 ...
Page 5: ...Page 4 ...
Page 25: ...Page 24 Drawing 1 ...
Page 27: ...Page 26 Drawing 2 ...
Page 29: ...Page 28 Drawing 3 ...
Page 31: ...Page 30 Drawing 4 ...
Page 33: ...Page 32 Drawing 5 ...
Page 35: ...Page 34 Drawing 6 ...
Page 37: ...Page 36 Note for Hydraulic Brakes see Appendix B Drawing 7 ...
Page 39: ...Page 38 Drawing 8 ...
Page 41: ...Page 40 Drawing 9 ...
Page 43: ...Page 42 Drawing 10 ...
Page 45: ...Page 44 Drawing 11 ...
Page 47: ...Page 46 Drawings 12A 12B ...
Page 49: ...Page 48 Drawing 13 ...
Page 51: ...Page 50 Drawing 14 ...
Page 53: ...Page 52 Drawing 15 ...
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Page 59: ...Page 58 Drawing 18 ...
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Page 67: ...Page 66 Drawing 22 ...
Page 69: ...Page 68 Drawing 23 ...
Page 71: ...Page 70 Drawing 24 ...
Page 73: ...Page 72 Drawing 25 ...
Page 75: ...Page 74 Drawing 26 ...
Page 77: ...Page 76 Drawing 27 ...
Page 79: ...Page 78 Wiring1 jpg Drawing 28a ...
Page 80: ...Page 79 Wiring2 jpg Drawing 28b ...
Page 81: ...Page 80 elecLights jpg Drawing 28c ...
Page 83: ...Page 82 Drawing 29 ...
Page 85: ...Page 84 Drawing 30 ...
Page 92: ...Page 91 Appendix B Brakes Manual for BX1320 BX1000 Appendix B Page 1 ...
Page 93: ...Page 92 Appendix B Page 2 ...
Page 94: ...Page 93 Appendix B Page 3 ...
Page 96: ...Page 95 Appendix B Page 5 ...
Page 97: ...Page 96 Appendix B Page 6 ...
Page 98: ...Page 97 Appendix B Page 7 ...
Page 104: ...Page 103 Figure 1a Description of Display Pages ...
Page 105: ...Page 104 Figure 1b Description of Display Pages ...
Page 138: ...Page 137 Appendix C EIS 4000 912 914 ...
Page 139: ...Page 138 Appendix C EIS 4000 912 914 ...
Page 140: ...Page 139 Appendix C EIS 4000 912 914 ...
Page 141: ...Page 140 Appendix C EIS 4000 912 914 End Appendix C ...
Page 155: ...Page 154 Appendix E2 Powerfin Prop Page 2 ...
Page 156: ...Page 155 Appendix E2 Powerfin Prop Page 3 ...
Page 157: ...Page 156 Appendix E2 Powerfin Prop Page 4 ...
Page 158: ...Page 157 Appendix E2 Powerfin Prop Page 5 ...
Page 159: ...Page 158 Appendix E2 Powerfin Prop Page 6 ...
Page 160: ...Page 159 Appendix E2 Powerfin Prop Page 7 ...
Page 161: ...Page 160 Appendix E2 Powerfin Prop Page 8 ...
Page 162: ...Page 161 Appendix E2 Powerfin Prop Page 9 ...
Page 163: ...Page 162 Appendix E2 Powerfin Prop Page 10 ...
Page 164: ...Page 163 Appendix E2 Powerfin Prop Page 11 End of Appendix E2 ...
Page 187: ...Page 186 By Memphis Soaring FIGURE 3 Common Signals ...