Electronics International FL-2 - Manual (Page 7)

than the actual fuel in the tanks when the tanks are full. When the fuel level drops to a point where the
fuel sensors start to detect a change, the displayed fuel level should be accurate. Check your system by
Check your system by Check your system by Check your system by Check your system by
comparing the displayed fuel levels on the FL-2 to the fuel levels listed in the flight manual at each fill comparing the displayed fuel levels on the FL-2 to the fuel levels listed in the flight manual at each fill comparing the displayed fuel levels on the FL-2 to the fuel levels listed in the flight manual at each fill comparing the displayed fuel levels on the FL-2 to the fuel levels listed in the flight manual at each fill comparing the displayed fuel levels on the FL-2 to the fuel levels listed in the flight manual at each fill
up.
up. up. up. up.
3. Low Fuel Readings - 3. Low Fuel Readings - 3. Low Fuel Readings - 3. Low Fuel Readings - 3. Low Fuel Readings - Do not rely on the FL-2 to determine the fuel in the tank for indicated tank Do not rely on the FL-2 to determine the fuel in the tank for indicated tank Do not rely on the FL-2 to determine the fuel in the tank for indicated tank Do not rely on the FL-2 to determine the fuel in the tank for indicated tank Do not rely on the FL-2 to determine the fuel in the tank for indicated tank
levels below 1/8 levels below 1/8 levels below 1/8 levels below 1/8 levels below 1/8. You should always fly the aircraft in such a manner as to at least maintain the FAA
minimum fuel requirements in the aircraft at all times. Depending on the mounting location and type of
Depending on the mounting location and type of Depending on the mounting location and type of Depending on the mounting location and type of Depending on the mounting location and type of
sensor used, the FL-2 may not be able to accurately measure the last few gallons of fuel in the tanks. sensor used, the FL-2 may not be able to accurately measure the last few gallons of fuel in the tanks. sensor used, the FL-2 may not be able to accurately measure the last few gallons of fuel in the tanks. sensor used, the FL-2 may not be able to accurately measure the last few gallons of fuel in the tanks. sensor used, the FL-2 may not be able to accurately measure the last few gallons of fuel in the tanks.
4. Improper Calibration - 4. Improper Calibration - 4. Improper Calibration - 4. Improper Calibration - 4. Improper Calibration - If the FL-2 has not been properly calibrated it will not display accurate fuel levels
in the tanks. It is important you verify the accuracy of the FL-2. Always cross check your measured Always cross check your measured Always cross check your measured Always cross check your measured Always cross check your measured
fuel levels in the tanks with the readings on the FL-2 before each flight. fuel levels in the tanks with the readings on the FL-2 before each flight. fuel levels in the tanks with the readings on the FL-2 before each flight. fuel levels in the tanks with the readings on the FL-2 before each flight. fuel levels in the tanks with the readings on the FL-2 before each flight.
5. Poor Connections - 5. Poor Connections - 5. Poor Connections - 5. Poor Connections - 5. Poor Connections - Poor connections in the wires leading from the FL-2 to the fuel sensors can become
intermittent with age. An intermittent connection will most likely show up as wandering or inaccurate
readings on the FL-2. Always cross check your measured fuel levels in the tanks with the readings on
Always cross check your measured fuel levels in the tanks with the readings on Always cross check your measured fuel levels in the tanks with the readings on Always cross check your measured fuel levels in the tanks with the readings on Always cross check your measured fuel levels in the tanks with the readings on
the FL-2 before each flight. the FL-2 before each flight. the FL-2 before each flight. the FL-2 before each flight. the FL-2 before each flight.
6. Defective Fuel Level Sensors - 6. Defective Fuel Level Sensors - 6. Defective Fuel Level Sensors - 6. Defective Fuel Level Sensors - 6. Defective Fuel Level Sensors - Fuel sensors can become intermittent or change resistance with age. It
is not uncommon to find intermittent problems even in new sensors. We recommend Stewart Warner F-
385-CP05 resistive sensors be used with the FL-2RA. An intermittent problem with a fuel sensor will
most likely show up as wandering or inaccurate readings on the FL-2. Always cross check the measured
Always cross check the measured Always cross check the measured Always cross check the measured Always cross check the measured
fuel levels in the tanks with the readings on the FL-2 at each fill up. fuel levels in the tanks with the readings on the FL-2 at each fill up. fuel levels in the tanks with the readings on the FL-2 at each fill up. fuel levels in the tanks with the readings on the FL-2 at each fill up. fuel levels in the tanks with the readings on the FL-2 at each fill up.
If you ever find an inaccuracy issue or any other problem with the FL-2, cover the face of the instrument If you ever find an inaccuracy issue or any other problem with the FL-2, cover the face of the instrument If you ever find an inaccuracy issue or any other problem with the FL-2, cover the face of the instrument If you ever find an inaccuracy issue or any other problem with the FL-2, cover the face of the instrument If you ever find an inaccuracy issue or any other problem with the FL-2, cover the face of the instrument
with a note saying "DEFECTIVE". This will alert anyone flying the aircraft to the condition of the FL-2. with a note saying "DEFECTIVE". This will alert anyone flying the aircraft to the condition of the FL-2. with a note saying "DEFECTIVE". This will alert anyone flying the aircraft to the condition of the FL-2. with a note saying "DEFECTIVE". This will alert anyone flying the aircraft to the condition of the FL-2. with a note saying "DEFECTIVE". This will alert anyone flying the aircraft to the condition of the FL-2.
***** MUST READ ***** ***** MUST READ ***** ***** MUST READ ***** ***** MUST READ ***** ***** MUST READ *****
Important Considerations: Important Considerations: Important Considerations: Important Considerations: Important Considerations:
"""""DO NOT SOLELY RELY ON THE FUEL LEVEL INSTRUMENT (FL-2) TO DETERMINE THE DO NOT SOLELY RELY ON THE FUEL LEVEL INSTRUMENT (FL-2) TO DETERMINE THE DO NOT SOLELY RELY ON THE FUEL LEVEL INSTRUMENT (FL-2) TO DETERMINE THE DO NOT SOLELY RELY ON THE FUEL LEVEL INSTRUMENT (FL-2) TO DETERMINE THE DO NOT SOLELY RELY ON THE FUEL LEVEL INSTRUMENT (FL-2) TO DETERMINE THE
FUEL LEVELS IN THE AIRCRAFT FUEL LEVELS IN THE AIRCRAFT FUEL LEVELS IN THE AIRCRAFT FUEL LEVELS IN THE AIRCRAFT FUEL LEVELS IN THE AIRCRAFT"""""..... The use of the FL-2 does not eliminate or reduce the necessity for the The use of the FL-2 does not eliminate or reduce the necessity for the The use of the FL-2 does not eliminate or reduce the necessity for the The use of the FL-2 does not eliminate or reduce the necessity for the The use of the FL-2 does not eliminate or reduce the necessity for the
pilot to use good flight planning, preflight and in-flight techniques for managing fuel. pilot to use good flight planning, preflight and in-flight techniques for managing fuel. pilot to use good flight planning, preflight and in-flight techniques for managing fuel. pilot to use good flight planning, preflight and in-flight techniques for managing fuel. pilot to use good flight planning, preflight and in-flight techniques for managing fuel. It is important the pilot
adopt the practices listed below. If you are not familiar with these techniques, contact the FAA to acquire proper
training.
1. 1. 1. 1. 1. A copy of this operating manual must be in the aircraft at all times. A copy of this operating manual must be in the aircraft at all times. A copy of this operating manual must be in the aircraft at all times. A copy of this operating manual must be in the aircraft at all times. A copy of this operating manual must be in the aircraft at all times.
2. Flight Planning - 2. Flight Planning - 2. Flight Planning - 2. Flight Planning - 2. Flight Planning - Always calculate the fuel requirement for each leg of the flight including any alternate
plans for bad weather. Keep this information available in the aircraft during the flight. Keep a chart of
the published fuel flows for various flight/engine conditions in the aircraft. Keep a chart of the measured
fuel flows for various flights in the aircraft. Measured fuel flows can be considerably different from
published figures. This is usually due to old inaccurate engine instruments.
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