Fuel Flow / Pressure (FP-5 and FP-5L) Operating Instructions OI 0505931 5/5/93 Rev. H: 2/17/05 You must read this manual before installing or operating the instrument. This manual contains warranty and other information that may affect your decision to install this product and/or the safety of your aircraft. Electronics International Inc. ® 63296 Powell Butte Hwy • Bend, OR 97701 • (541) 318-6060 • www.Buy-EI.
FP-5 and FP-5L Important Notice ********** Must Read ********** If you think it is not important to read this manual, you're wrong! This manual contains important information that may affect the safety of your aircraft. Read the Warranty / Agreement. There is information in the Warranty / Agreement that may alter your decision to install this product. If you do not accept the terms of the Warranty / Agreement, do not install this product. This product may be returned for a refund.
Contents Warranty ................................................................................... 2 System Description: ................................................................ 3 Display arning LEDs, and Alarms: ...................................... Display,, W Warning 4 1. 2. 3. 4.
Warranty / Agreement Electronics International Inc. (E.I. inc.) warrants this instrument and system components to be free from defects in materials and workmanship for a period of one year from the user invoice date. Fuel Flow and Pressure Transducers are NOT covered under this warranty. They are covered by the original equipment manufacturer. Electronics International Inc.
FP-5 and FP-5L Operating Instructions System Description: The FP-5 and FP-5L are models of a fuel flow computer instrument packaged in a 2.5" by 2.5" by 3.65" depth case. Each of the instruments connects to a fuel flow transducer which is mounted in the engine cowling area. A single "AUX" (auxiliary) Channel is optional and may be used to monitor one of the following functions: EGT (provides compensation for Horsepower when leaning), CHT, Oil Temp, OAT, Carb.
In addition to these seven display modes both units have the following pilot programmable settings (used to set up the display and alarms): Display in Gallons, British (Imperial) Gallons, Pounds or Liters; Fuel Remaining; Auto Calibrate the K Factor; two Low Fuel Alarms; Time to Empty Alarm; Reoccurring Fuel Used Alarm; High and Low AUX Alarm. Also, both units have Power-Up Programmable Settings that are used to configure the instrument for your personal preferences, aircraft and engine.
B. Second Low Fuel Alarm: This alarm should be set as a warning (example: 5 gallons). When the Alarm Limit is violated the red Low Fuel Warning LED will start to blink. Pushing any button or switch will stop the blinking and the LED will go solid red. Also, a bar in the lower left corner of the display will be shown when displaying “REM”. C. Time to Empty Alarm: This alarm may be set for a time to empty value (example: 1 hour).
Display Modes and Operating Features: The following chart is an overview of the Display Modes and Pilot Programmable Settings available. D i spl ay Mode (indicated by a green LED) Mai n D i spl ay (select w it h " S T E P " S w it ch ) FLOW HP REM USED Fuel Flow (17.3 gal/Hr) Fuel Remaining (23.7 gal) Fuel Used since Fill Up (16.3 gal) Time to Empty (1:22) Fuel Used for the Flight (F 7.2 gal) (FP-5L only ) N autical Miles per Gallon (n 9.
When displaying Fuel Flow, the FP-5(L) will operate as follows: A. When set to display in Gallons the display will read in .1 Gal/Hr increments up to 199.9 Gal/Hr. B. When set to display in Imperial Gallons the display will read in .1 Gal/Hr increments up to 162.0 Gal/Hr. C. When set to display in Pounds the display will read in 1 Lb/Hr increments up to 1199 Lbs/Hr. D. When set to display in Liters the display will read in 1 Ltr/Hr increments up to 749 Ltrs/Hr.
2. “REM” (Remaining) Display Mode: In the “REM” (Fuel Remaining) Display Mode, the FP-5(L) will display the fuel in the aircraft tanks as follows: A. When set to display in Gallons the display will read in .1 Gal increments up to 99.9 Gals. and 1 Gal increments from 100 to 999 Gals. 25.3 Gal B. When set to display in Imperial Gallons the display will read in .1 Gal increments up to 99.9 Gals. and 1 Gal increments from 100 to 811 Gals. C.
Example: * You start your flight with full tank(s) and go fly. * You land and pull up to the pumps, taking on 30.0 gallons of fuel. * The FP-5(L) indicates you used 26.9 gallons since fill up, indicating a 3.1 gallon error. * You enter the "Auto Calibrate Mode" (as described below) and change the display from 26.9 to 30.0 (pump reading). * When you exit the "Auto Calibrate Mode" the New K Factor is displayed for 3 seconds.
c) To Exit - To exit the "Auto Calibration Mode", momentarily push both “PRG” buttons at the same time. The new K Factor will be displayed for 3 seconds and the display will return to blinking "Add." Most of the time you will want to enter the "Add Fuel Mode" after you have performed an auto calibration (see "Add Fuel"). Note: After exiting the "Auto Calibrate Mode", the "Fuel Used Since Fill Up", "Fuel Used for the Flight" and the "Fuel Remaining" values will be reset to 0. 4.
than when it was tested at the factory. To insure accuracy, which is essential, the FP-5(L) provides a pilotprogrammable K Factor to correct for these differences. Initially, the FP-5(L)'s K Factor is set to a value which is marked on a tag supplied with the flow transducer. At each fill up the K factor may be changed using the "Auto Calibrate Mode" or the K Factor may be manually changed in the Power-up Programming. 5.
6. “T. to E. / MPG” (Time to Empty / Miles per Gallon) Display Mode: "Time to Empty" is calculated by dividing "Fuel Remaining" by "Fuel Flow". The value is displayed in hours and minutes up to 19 hours and 59 minutes. By tapping either "PRG" button, the FP-5L can be toggle between "Time to Empty", "Nautical Miles per Gallon" (shown with a "n" in the left of the display) and "Statute Miles per Gallon." If the programmable Low "T. to E.
Also, the "AUX" channel can be set up to display a decimal point (for pressure, volts, etc. measurements) and display "00" for readings under 5 counts (for pressure measurements). See the "Power-up Programming" section of this manual. If the programmable High AUX Limit is violated, a bar will appear in the upper left corner of the LCD display in the “AUX” mode, and the H/L AUX Warning LED will blink.
show " " (note the tick mark in the upper left corner of the display). If the baud rate is correct but the ." To set up the ground speed and distance to waypoint is not available, the display will show " FP-5L to receive GPS data, see the "Power-Up Programmable Settings" sections of this manual. Once speed and distance data have been received, Fuel Reserve will be computed instantly and displayed on the FP-5L. Pilot-Programmable Settings: The FP-5(L) has seven Pilot Programmable Settings.
1. Setting the display for “Gal”, "br Gal", “Lbs” or "Ltr" in the "Flow" Display Mode: In the "FLOW" Display Mode the FP-5(L) may be set to display Fuel Flow, Fuel Remaining and Fuel Used in Gallons, British (Imperial) Gallons, Pounds or Liters. To program the display, perform the following steps: A. Select the “FLOW” Display Mode. B. Momentarily push both “PRG” buttons. Either “Gal", "br Gal", "Lbs" or “Ltr” will be shown in the display.
this alarm is 30 minutes’ worth of fuel (at cruise) for a VFR pilot or 45 minutes for an IFR pilot. In the “REM” display mode a bar in the lower left corner of the display will be shown when the Second Low Fuel Alarm Limit has been violated. Programming this alarm to “000” disables the alarm. To program the First and Second Low Fuel Alarm Limits, perform the following steps: Blinking Digit (0) A. Select the “USED” Display Mode. B. Momentarily push both “PRG” buttons.
Reoccurring Fuel Used Alarm - The Reoccurring Fuel Used Alarm may be programmed to blink the Low Fuel Warning LED each time the fuel used reaches the programmed limit. Example: You have 40 gallons of fuel on board. You set the Reoccurring Alarm to 5 gallons. You will get an alarm every 5 gallons of fuel used (i.e., when your fuel levels reaches 35, 30, 25, 20, etc. gallons). Pushing any button or switch will turn off the blinking LED.
set to the highest acceptable level for the function measured. In the “AUX” Display Mode a bar in the upper left corner of the display will be shown when the high limit has been violated. Programming this limit to “000” disables the alarm. Low AUX Alarm - A Low AUX Alarm may be programmed to blink the H/L AUX Warning LED when the displayed AUX value exceeds your programmed low setpoint. Pushing any button or switch will stop the blinking but the H/L AUX Warning LED will stay on.
Power-Up Programmable Settings: The FP-5(L) has nine Power-Up Programmable Settings and the FP-5L has two additional settings. These programmable settings need to be set only once to configure the instrument to your aircraft, engine and personal preference. The following settings are available: 1&2. First and Second Full Fuel Levels: Blinking Digit There are two Full Fuel Levels that may be set in the FP-5(L).
3. The ability of the line attendant to fill the tank to the same mark. Also, the shape of the tank and the dihedral of the wings can aggravate the situation. Note: K Factor settings below 580 will cause the display resolution to increase above .1 Gal/Hr. when used with a Display Update Time setting of "UP2." K Factors below 180 will cause the display resolution to increase above .1 Gal/Hr. when used with a Display Update Time setting of "UP1." The FT-90 Flow Transducer has a K Factor around 198. 4.
B. Program the Fuel Flow Setting in the FP-5(L) using the following formula: FF@75% rich x 75 Fuel Flow Setting = --------------------------------------------------------------HPmax (max horsepower of your engine) x .75 Note: For most spark ignition piston engines this fuel flow setting will be around 7.0 gallons/hr. 7. AUX Channel Control Setting #1: The AUX Channel Control Setting #1 configures the AUX Channel as follows: A.
B. To display a decimal point in the AUX Display Mode, set the AUX Channel Control Setting #2 to "000." The decimal point would be used when monitoring fuel pressure, manifold pressure, gyro vacuum, volts, etc. 9. GPS Receive Format (FP-5L only): The GPS Receive Format configures the FP-5L to receive data from a GPS. The data received is used to calculate fuel to destination, fuel reserve and miles per gallon.
11. Scan Rate: Blinking Digit The Scan Rate (the time the FP-5(L) takes to switch between display modes) can be set from 0 to 9 seconds. A "0" setting disables the scan feature. When displaying the Scan Rate "Sn" will be shown in the left of the display. Sn3 To program the Power-up Programmable Settings, perform the following steps: A. Turn the aircraft electrical power off, push both “PRG” buttons, and hold them in. B.
Specifications and Operating Features Model: FP-5 and FP-5L (Fuel Flow/Pressure Instrument) Case Dimensions: 2.5" x 2.5" x 3.65" depth, 2 1/4" Bezel. Weight: Instrument Only: Flow Transducer FT-60 or FT-90: 11 Oz. 5.3 Oz. Environmental: Meets TSO C44a/C47 Power Requirements: 7.5 to 35 Volts, 1/10 Amp. Green Display Mode Indicator LEDs: The intensity of these LEDs is controlled by the dimming wire. 12 or 24 volts on this wire will dim the LEDs for night operation.
Max Displayed Range (Instrument Only): Fuel Flow: 199.9 Gals/Hr or 162.0 br Gal/Hr or 1199 Lbs/Hr or 749 Ltr/Hr. Fuel Remaining: 999 Gals. or 811 br Gal. or 1999 Lbs. or 1999 Ltr. Fuel Used: 999 Gals. or 811 br Gal. or 1999 Lbs. or 1999 Ltr. Time to Empty: 19 hours 59 minutes Aux: +/- 1999 RS-232/422 Input Ports (FP-5L Only): Single Line Receive Method: RS-232C or RS-423 Dual Line Receive Method: RS-422 or RS-485 (with 120 ohm external resistor) Protocol: 1 Start bit, 8 Data bits, 1 Stop bit.
