3. As long as you do not power-down the system, you can down view the entire
flight using the RS-232 adapter and a PC.
If the off condition is "POWER-FAIL" then the data is not valid. This occurs if the
ECU or receiver battery was disconnected or was intermittent or if the receiver
power goes lower than 3 volts. In this case, the data in the system would be for the
previous run.
Sample of displayed values
Tim:
Time
-4.0
R:
RPM
0
S:
Set-
RPM
0
EGT:
Temp
0
Pmp:
Pump
V
0.0
Sta:
State
0
Th:
Thr.
pulse
0
Au:
Aux.
pulse
0
Bat:
Batt
volts
0
AirS:
Air
Speed
0
SetS:
Set
Air speed
0
See the Explanation for Turbine Shut Down for a description of each state code.
How to diagnose a shut-down from the saved data
Symptom Engine shut-
off state
Possible Reason
Engine quits
with a trail of
white smoke.
Low RPM or
Fuel Fail
Code 7
99 times out of 100 times this is caused by air in the
fuel system. Make sure there is no leaks in the fuel
system and most importantly, get all the air out of the
fuel filter. The fuel filter should not be hard fixed to
the plane but allowed to hang free. It is best mounted
vertically. When you purge the fuel system, tap the
filters while the pump is running to get all the air out
them.
You will see the pump voltage rising rapidly before it
shuts off because the ECU is trying to maintain the
RPM. The temperature and RPM will be decreasing.
The ECU will turn off the pump when the RPM is
approximately less than 24,000 RPM.
USE A BVM Ultimate Air Trap!!!!!!!!!!!
55
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