40% of Fleets Operational cost is accounted towards Fuel . In order to reduce operational cost , Fuel Data needs to be monitored .
A robust Fuel Management Solution should consist of :
• Fuel Measurement/Monitoring sensors .
• Additional sensors to monitor RPM, Temperature, Movement, Ignition, Doors and etc.
• GPS/GNSS Tracking device or Data logger .
• Web-based Power-full Software specially adopted for Fuel data processing to the customer.
Application Software should be be able to monitor and provide Fuel Data in near real time to the clients . And should include -
1-Fuel level in the fuel tank at any given time,
2- Quantity fuel filled with date, time and location stamp,
3- Quantity consumed over a defined period of time ,
4- Quantity illegally drained out , if any , with date, time and location stamp,
CHEAPER SOLUTION = RECURRING COST
A brief comparison of various types of sensors available in market as tabulated below
|
Comparison between Fuel Level Sensors
|
|||
|
In-built (Resistive) |
Resistive |
Capacitive |
|
|
Picture |
 |
 |
 |
|
Cost (0...5 points) |
0.5 point |
2 points |
4 points |
|
Moving parts |
Yes |
Yes |
No |
|
MTBF |
6...10 months |
3...12 months |
18...36 months |
|
Dead zone( Top) |
50...100+ mm |
20+ mm |
2...10 mm |
|
Dead zone(Bottom) |
50..100+ mm |
50...200+ mm |
10..15 mm |
|
Adjustable size |
No |
No |
Yes |
|
Interface |
Resistive, Analog |
Resistive, Analog |
Analog, Frequency,RS232, RS485, CAN-BUS |
|
Measurement resolution |
5...10 mm |
5...10 mm |
0.1 mm |
|
Measurement resolution (error) |
+-5% |
+-5% |
+-0.5% |
|
Temperature compensation |
No |
No |
Yes |
|
Tracker input error |
+-2.5% |
+-2.5% |
+-0% |
|
Fuel Level filtering |
No |
No |
Yes |
|
Chance of false fuel drain or filling |
60% |
40% |
5% |
|
Fuel level stability |
Different with ignition on/off |
Different with ignition on/off |
Stable |
|
Sensor off in case |
Ignition off & Battery removed |
Ignition off & Battery removed |
Battery removed |
|
Total Measurement error |
+-15% |
+-15% |
+-1.5% Of Fuel Tank Volume |