DEcosse
If it's no Scottish it's CRAP!
Some of you might want to skip this post if it makes your brain hurt! 
Just to give a little more detail on how it it is calibrated after its very first use for any bike/car:
The first value you enter is the specified capacity for the tank (from your owners or service manual);
You then fill the tank initially (to the neck so you have an exact reference point), reset the system and then ride to consume the tank;
- it does not really matter how much you consume but at least 100 miles would be recommended - or even a full tank.
(You will be ignoring the values on the display at this point until after you complete the initial calibration.)
Then after that initial ride & at gas station, record the displayed total time that the injector has been in the 'on' state since that earlier refill - the InjctmS number shown in the display.
Ex: 1548307 (that is in ms )
Then you fill the tank back to the neck (so you know exactly how much gas was consumed) & record how may gallons it takes to fill the tank, off the pump. Ex 3.274gal.
Divide InjctmS by Gallons to get mS/Gallon. Ex: 1548307/3.274 = 472909 - this number is a direct correlation of the injector pulse time to volume of gas through it*
Then you enter that new mS/Gallon number into the appropriate field and from then forward it will accurately calculate the fuel being used and the other derivatives of that (% full, used, remaining, distance estimate etc)
* In actuality that constant that was created is not the volume of gas through that ONE injector, but through however many injectors that particular bike has; the number of injectors is actually immaterial for the purpose of this calculation, the computer simply calculates that for the given injector duration of cylinder #1, the bike used 'n' gallons of fuel overall. So you are not creating a constant of pulse duration to gas used in one injector but for all injectors (regardless of how many injectors that really was).
The premise assumes that the fuel being consumed (and the accumulated 'on-time') is approximately the same for each injector - & empirically you will find that it is indeed, giving repeatable results easily within the spec'd +/- 2% just by measuring the single injector alone.
For those of you that like math (I do - I know, I'm a sick puppy ) you can work the numbers backwards to get the real flow rate of the injector
Now, I know those values in the example above came from a Twin (Dave's base development all done on an SV650)
So the 1548307ms (= 25.805 mins) of that single injector related to 3.274 gals of fuel used for BOTH cylinders, so that one cylinder actually used 1.637 Gals - or 6197 cc's
So 6197ccs => 25.805 mins
or 6197/25.805 = 240 ccs/min which is the value of the Injector Flow Rate.
None of this calculation is actually processed, I'm just illustrating the accuracy of the system which results in the actual injector flow rating of the bike's injector.
There is a similar user-programmable entry for the odo which is calibrated for the speed sender for the particular bike/car, which then is used to calculate the mpg, and distance gone/remaining values
Just to give a little more detail on how it it is calibrated after its very first use for any bike/car:
The first value you enter is the specified capacity for the tank (from your owners or service manual);
You then fill the tank initially (to the neck so you have an exact reference point), reset the system and then ride to consume the tank;
- it does not really matter how much you consume but at least 100 miles would be recommended - or even a full tank.
(You will be ignoring the values on the display at this point until after you complete the initial calibration.)
Then after that initial ride & at gas station, record the displayed total time that the injector has been in the 'on' state since that earlier refill - the InjctmS number shown in the display.
Ex: 1548307 (that is in ms )
Then you fill the tank back to the neck (so you know exactly how much gas was consumed) & record how may gallons it takes to fill the tank, off the pump. Ex 3.274gal.
Divide InjctmS by Gallons to get mS/Gallon. Ex: 1548307/3.274 = 472909 - this number is a direct correlation of the injector pulse time to volume of gas through it*
Then you enter that new mS/Gallon number into the appropriate field and from then forward it will accurately calculate the fuel being used and the other derivatives of that (% full, used, remaining, distance estimate etc)
* In actuality that constant that was created is not the volume of gas through that ONE injector, but through however many injectors that particular bike has; the number of injectors is actually immaterial for the purpose of this calculation, the computer simply calculates that for the given injector duration of cylinder #1, the bike used 'n' gallons of fuel overall. So you are not creating a constant of pulse duration to gas used in one injector but for all injectors (regardless of how many injectors that really was).
The premise assumes that the fuel being consumed (and the accumulated 'on-time') is approximately the same for each injector - & empirically you will find that it is indeed, giving repeatable results easily within the spec'd +/- 2% just by measuring the single injector alone.
For those of you that like math (I do - I know, I'm a sick puppy
) you can work the numbers backwards to get the real flow rate of the injectorNow, I know those values in the example above came from a Twin (Dave's base development all done on an SV650)
So the 1548307ms (= 25.805 mins) of that single injector related to 3.274 gals of fuel used for BOTH cylinders, so that one cylinder actually used 1.637 Gals - or 6197 cc's
So 6197ccs => 25.805 mins
or 6197/25.805 = 240 ccs/min which is the value of the Injector Flow Rate.
None of this calculation is actually processed, I'm just illustrating the accuracy of the system which results in the actual injector flow rating of the bike's injector.
There is a similar user-programmable entry for the odo which is calibrated for the speed sender for the particular bike/car, which then is used to calculate the mpg, and distance gone/remaining values
