Lowrance electronic LMF-400 - Manual (Page 30)

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Used shown by the gauge. If the difference between these two figures is
greater than 5 percent, then you need to recalibrate the unit.
3. To do this, after entering the tank has been refilled, select Y ES
on the
R
ECALIBRATE
option.
4. Then enter in the amount of fuel added to fill the tank. The
calibration is calculated by comparing the actual fuel used to the
calculated fuel used. It is vital to get an accurate reading on the actual
fuel used and the amount of fuel added to fill the tank the second time.
On multiple engine installations with a single tank configuration, only
one engine should be run when calibrating the EP-10 Fuel Flow. This is
the only way to know how much fuel has gone through the EP-10 Fuel
Flow you want to calibrate.
Refill Tank
1. After you have filled the gas tank, scroll through the pages until the
Fuel Manager page is on the main display. Press
MENU .
2. Highlight F UEL S ETUP
and press ENTER .
3. Scroll down the menu to R
EFILL
T
ANK
and press ENTER , which will call
up the following message: ReCalibrate? A menu will be below the
message with two options: Yes or No.
4. Highlight Y ES
and press ENTER , which will launch the Filled Fuel
Quantity window.
5. Use the UP and DOWN keys to enter the number of gallons you put in
the tank and press ENTER to finalize the calibration. You will be
directed back to the Fuel Setup menu.
Partial Fill
1. Scroll through the pages until the Fuel Manager page is on the
screen, then press
MENU .
2. Highlight F
UEL
S
ETUP
and press ENTER .
3. Scroll down to P ARTIAL F ILL
and press ENTER , which will launch the
Adding Fuel Window.
4. Use the UP and DOWN keys to enter the amount of fuel you added to
the tank, then press ENTER . You will be directed back to the Fuel Setup
menu.
Trim Tabs
If the Trim Tabs have not been calibrated or have been reset, the
display will flash between 0 and 100. This is normal prior to the trim
tabs being calibrated for the first time.
Trim Tabs can only be calibrated from the Trim Tabs page. If the page
is not present in the scrolling page display, add the Trim Tab page by
following the Adding Pages instructions in Section 3: Operation.