Floscan 9000-20B-1 GPS Interface System - Manual (Page 19)

7/9/2003 7000-040-00B
CALIBRATION
Series 7000/8000/9000 Multifunction Instrument
There are two calibration switches on the back of the Multifunction Instrument, Black and Red. The Black switch is used for fuel
totalizer calibration. The Red switch is used for tachometer calibration.
FloScan Instrument Company, Inc. Tel: (206) 524-6625 Fax: (206) 523-4961
3016 NE Blakeley Street, Seattle, WA 98105 Email: [email protected] Http://www.floscan.com
TACHOMETER SELECTION
Inboard Engines:
Tachometer calibration for standard point and electronic ignition inboard engines is
usually based upon the number of engine cylinders. EFI engines sometimes use a
CPU to generate its tachometer signal. For these engines calibration is not always
based on engine cylinders.
Standard Point, Electronic Ignition, & EFI Inboard Engines:
Cylinders CPU, (4,6,8) 4 6 8
BLACK RED
BACK OF INSTRUMENT
0 0
4
3
2
1 0 F
E
D
C
B
A
9
5
6
7 8
16 15 14 11 9 10 12 13
1 2 3 4 5 6 7 8
Red Switch Setting 1 1 2 3
Outboard Engines:
Tachometer calibration for standard point and electronic ignition outboard engines is usually based upon the number of alternator pole
pairs. EFI outboards sometimes use a CPU to generate its tachometer signal. Calibration for EFI engines is not always based on
alternator pole pairs. Refer to your engine manual or check with a local dealer to determine the number of alternator pole pairs your
engine has.
Standard Point, Electronic Ignition, & EFI Outboard Engines:
Pole Pairs CPU 4 6 8 10 12 14 16 18 20
Red Switch Setting 1 1 2 3 4 5 6 7 8 9
TOTALIZER CALIBRATION,
(Inboard & Outboard Engines):
• Reset the totalizer so that the GALLONS window reads zero. Top off the fuel tank(s).
• Take the vessel for a cruise. Once underway,
operate the boat the as you normally would.
• Consume a minimum of 15 to 30 gallons of fuel per engine. Higher consumption gives better accuracy.
• After consuming some fuel, return to the fuel dock and top off the fuel tank(s).
• Compare the Gallons window reading to the fuel pump reading.
• Calculate the percentage difference between the fuel pump & Gallons window readings; (Refer to Examples I & II on page 2).
• Determine if the totalizer is reading High or LOW.
• Rotate the Upper Black Switch until the GALLONS window matches the fuel pump reading.
• Starting at, “0” rotating the Upper BLACK Switch clockwise, increases the Totalizer readings by 1% for each click.
• Rotating the switch in a counter-clockwise direction decreases Totalizer readings by 1%.
• Totalizer readings can be increased by 5%, or reduced by 10%.