20
CONTOIL
®
DFM
High Performance Results
(with application optimization)
High Performance Results means, to adapt the system to the different condition you can face during your daily work.
This can be:
1. High ambient temperatures.
2. Low ambient temperatures.
3. Different temperatures between supply line and return line of the fuel system.
4. Something else...?
To avoid the influence of all the mentioned conditions listed above, the Board Computer allows you the unique possibility to optimize your
application. It is an application optimization because the CONTOIL
®
DFM System it-self works perfect but the condition around it changes.
To take care of this situation you can adjust the calculation according to your experience on the field.
Let’s look at an example:
The temperature of the return line fuel is 10 °C higher than the temperature of the supply line fuel. This temperature difference cause a
volume increase of about 0.8 % on the return line.
Note: all 10 °C the volume of the fuel will increase for approximately 0.8 %. This statement is based on a large experience of the developer
of the CONTOIL
®
DFM.
To compensate this fact, enter on the RL app parameter the value -0.8 %. From now on the calculated flow on the return line will be
-0.8 % reduced. This reduced flow will be used for the consumption calculation. The same you can do with the SL app.
How to enter this parameter?
Go to the section “For Service People … parameter settings” enter the sub-section “Return Configuration” and change the “RL app“ or
the “SL app“.
What to do if there is a malfunction?
No Display on the Board Computer (DFM-BC)
1. The Board Computer (DFM-BC) has a sleep mode. Press any key the wake it up. It is ok? If not go to the check list below.
2. Check the following:
a. Has the vehicle battery min. 12 VDC?
b. Power connections from the vehicle battery to the Board Computer (DFM-BC). Do you have min.12 VDC? If not the check the
connection for wire interrupts.
c. Are the wires from the vehicle battery connected to the Board Computer (DFM-BC)
(pin 13 (battery plus) and pin 14 (battery minus) of the connector inside the case)?
d. If the display is still not working, disconnect all wires except the ones from pin 13 (battery plus) and pin 14 (battery minus).
i. It works!
The problem may be by an incorrect connection of the wires from the flow meter or from the auxiliary device.
ii. It still does not work!
Contact your local dealer for more information.
The Board Computer (DFM-BC) is running, but no value from the flow meters
1. Check the following:
a. Are the flow meters connected to the Board Computer?
b. Check the voltage on the Board Computer for the flow meters (pin 1 and/or 7). It must be at least 12 VDC.
See also section “Electrical connections and specifications”.
After Installation, an <Error> is displayed.
1. Check the following:
a. Are the DFM flow meter mounted the right way (look for the direction arrows on the flow meters).
b. Look at the Error Log and try to find out the solution with the description of the Error Messages.
