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MGL Avionics 

Fuel management FF-2 & FF-4 

Install & User’s manual 

 

© 2002-2007 MGL & Delta Omega  

www.delta-omega.com

 

Page 5, june07 

 

 

 

 

Mode F (Single Fuel Flow) 

 

 

 

 

 

Mode FF (Dual Fuel Flow) 

 

 

 

 

 

 

 

Mode PT (Single Tank, level sender) 

 

 

 

 

 

 

Mode PTT (Dual Tank, level senders) 

 

 

 

 

 

 

Mode DF (Differential Fuel flow) 

Note: This mode is used to show the flow of both 
forward flow and return flow senders. The calculation 
at the bottom of the screen shows how the fuel flow is 
derived. 

 

Summary of Contents for FF-2

Page 1: ...Dual sender fuel management system Fuel flow Fuel range Fuel endurance Fuel level Accumulated fuel burn Differential flow 13 modes of operation DELTA OMEGA sarl 645 Route du Belin 38410 St Martin d Ur...

Page 2: ...PTT Dual fuel flow dual Tank level senders 4 Mode F PTT Single fuel flow dual Tank level senders 4 Mode DF PTT Single fuel flow dual Tank level senders 4 Mode F Single Fuel Flow 5 Mode FF Dual Fuel F...

Page 3: ...sed upon injection opening time Standard automotive fuel level senders can be used even with odd shaped tanks thanks to a comprehensive multi point calibration system Most fuel flow senders can be use...

Page 4: ...Mode DF PT Differential Fuel flow single Tank level sender Use the key to switch with another display showing remaining fuel fuel flow Fuel range and fuel endurance Mode FF CTT Dual fuel flow dual Ta...

Page 5: ...omega com Page 5 june07 Mode F Single Fuel Flow Mode FF Dual Fuel Flow Mode PT Single Tank level sender Mode PTT Dual Tank level senders Mode DF Differential Fuel flow Note This mode is used to show t...

Page 6: ...during your session will only be remembered by the instrument if you exit the menu using the Done function The menu varies depending on the mode you have selected The following pictures and descriptio...

Page 7: ...your current fuel level after fueling or defueling your aircraft This function is only available if you have a mode selected where fuel level is calculated from fuel flow Note that it is good airmans...

Page 8: ...er of pulses generated by the fuel flow sender for one liter of fuel The dual range fuel flow sender supplied by MGL Avionics has a K Factor of 7000 in the low flow mode jet installed and 1330 for the...

Page 9: ...tical line on your fuel level display This level is over and above your silent fuel reserve Each tank has its own alarm level Units Select your required units for distance and fuel quantity The follow...

Page 10: ...osition then you have a problem Please check your wiring according to the installation section of this manual You should expect the number to change in the region of at least 20 to 60 counts per calib...

Page 11: ...ll be displayed This could happen when fuel was removed instead of added between steps no fuel was added between steps the fuel level sender was moved in the wrong direction e g moving the fuel level...

Page 12: ...a 4K7 pull up resistor In all cases ensure that fuel flow through the sender is continuous and smooth Nearly all flow senders related problems are due to choosing a bad position in the fuel supply li...

Page 13: ...lect Injector High in Setup When injector is controlled through positive side select Injector Low in Setup Ensure that you enter the K factor relevant for your injection timing Note that the injector...

Page 14: ...tive fuels for this reason Please ensure that the float of the level sender moves freely at all times and that the float is large enough not to remain submerged in case the mechanism becomes sticky Th...

Page 15: ...ge 15 june07 Mechanical The front panel of the singles occupies the same space as a standard 2 25 unit popular with automotive gauges Traditional gauges have a round body while the singles have an oct...

Page 16: ...ight homebuilt and experimental aircraft Operation of this instrument is the sole responsibility of the pilot in command PIC of the aircraft This person must be proficient and carry a valid and releva...

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