Diesel engine fuel consumption meter is creation from two Diesel flow sensor and one fuel calculator, full product is design, developed and tested by broiltech, and successfully run from last three years.
Broiltech fuel sensor is oval gear flow sensor, its measure and calculate total diesel quantity pass from
diesel tank to engine (a) and excess diesel return from engine to diesel tank (b), and after know both
diesel quantity its easy to calculate total fuel consumption of diesel generator (c) = (a) - (b),
and its our surety that our system accuracy: 0.5 % of real consumption.
Broiltech fuel calculator measure and calculate both fuel flow sensor fuel qty, fuel passing time and fuel consumption also broiltech fuel  calculator optionally able to provide RS-485/RS-232 / pulse output against fix use qty for connect with GPS and GPRS modem.

Technical data:
1) diesel flow sensor : one for inlet line and second for return line 
   Enclosure : Aluminum anodize
   sensing element : Aluminum anodize oval gear
   Accuracy (standard installation position):0.1 % fsd
   power: 5 vdc to 24  vdc

diesel flow sensor selection:
Bt-DOFS-006 -------  up to 200 HP Diesel Engines
Bt-DOFS-008-------- 200 HP TO 400 HP Diesel Engines
BT-DOFS-012------- 400 HP TO 1000 HP Diesel Engines
BT-DOFS-020------- 1000 HP TO 1500 HP Diesel Engines
BT-DOFS-025------- 1500 HP TO 2000 HP Diesel Engines

Fuel calculator:
  Fuel calculator with inbuild data logging and checking memory & extended usb port for data syncronize 
  Display: inline, return line and consume fuel qty and time, and flow rate
  Measure unit: selection available: litter/gallon/meter3 and many more Standard unit
  Power: 5 Vdc to 24  Vdc
  Calibration: easy to calibrate both connect fuel flow sensor