Lowrance lmf-400 ユーザーズマニュアル

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2-Point Calibration 
A 2-point calibration is best suited for rectangular or square-shaped 
tanks, where the capacity of the top half of the tank matches the 
capacity in the lower half of the tank. In a two-point calibration, you 
will set two points, one each for empty and full levels. You can begin 
calibration at either of the two points, but we recommend starting with 
an empty tank. You will fill the tank to complete calibration.  
NOTE: 
You DO NOT have to calibrate both points to complete the 
calibration and you can calibrate the points (Empty Level and Full 
Level) in any order you wish. Remember: Points that are not 
calibrated will not be as accurate as points that have been 
calibrated. 
For the greatest accuracy, we recommend both points be 
calibrated.  
To execute 2-Point calibration: 
1. Before following the steps below, make sure your fuel tank is empty. 
2. Press 
MENU
, use the 
UP
 and 
DOWN
  keys  to  select 
S
YSTEM 
S
ETUP
 and 
press 
ENTER
.  
3. Highlight 
B
US 
D
EVICES
 and press 
ENTER
. Chose the fluid level you 
want to calibrate and press 
ENTER
.  
4. Select 
C
ALIBRATE
 and press 
ENTER
. The Number of Points menu will 
appear with three options: 2, 3 and 5. Select 
2
, for two-point calibration, 
and press 
ENTER
.  
5. The Levels menu will appear with two choices: Empty Level and Full 
Level. Choose 
E
MPTY 
L
EVEL
 and press 
ENTER
6. The following message will appear: Set Tank to Empty Level Press 
Enter
. Press 
ENTER
. You will be taken back to the Levels menu. 
7. Fill up your tank. 
8. Select 
F
ULL 
L
EVEL
 and press 
ENTER
. The following message will 
appear: Set Tank to Full Level Press Enter
9. Press 
ENTER
. Press 
EXIT
 repeatedly to return to the main display. 
3-Point Calibration 
3-point calibration is designed for tanks that vary in shape from the top 
to the bottom. You can begin calibration at any point in the 3-point 
process, but we recommend starting calibration with an empty tank. In 
a 3-point calibration, you will set three points, one each for empty, half 
and full levels. 
NOTE: 
You DO NOT have to calibrate all three points to complete the 
calibration and you can calibrate the points (Empty Level, Half