Lowrance electronic LMF-200 Marine Instruments User Manual


 
52
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
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 all three
points be calibrated.
To execute 3-Point calibration:
1. Press
MENU, select SYSTEM SETUP and press MENU.
2. Highlight
B. DEVICES and press MENU, which will open the Bus
Devices list.
3. Highlight the fluid level sensor you want to calibrate and press
MENU, then select CAL (Calibrate) and press MENU. The Points menu
will appear with three options: 2, 3 and 5.
4. Select
3 and press MENU. The Points menu will appear with three
options: Empty Lev, Half Lev and Full Lev.
5. Highlight
EMPTY LEV and press MENU. The following message will
appear: Tnk to Empty lev hit Menu. Press Menu and fill your tank up
halfway. If you have a 100 gallon tank, add 50 gallons.
6. Repeat steps 1-4, then select
HALF LEV from the Points menu and
press
MENU. The following message will appear: Tnk to Half lev hit
Menu. Press
MENU and fill up the tank.
7. Repeat steps 1-4 to access the Points menu, then highlight
FULL LEV
and press
MENU. The following message will appear: Tnk to Full lev hit
Menu.
8. Press
MENU and let the menus time out, which will take you to the
main display.
5-point Calibration
5-point calibration is best suited tanks that vary greatly in shape from
top to bottom. You can begin calibration at any point in the 5-point
calibration process. We recommend starting calibration with an empty
tank. In a five-point calibration you will set five points: Empty Level, 1
Qtr Level, Half Level, 3 Qtr Level and Full Level.