Floscan Series 9700/97000 Standard Flow GPS Interface System (twin engine model) - Manual (Page 10)

03/05/2008 4001-325-00H
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
• Select Instrument Mounting Location. The instruments’ face is waterproof and a gasket is provided to seal its bezel to the
control panel. Choose a location away from the compass. Install 65/6600 series instruments 12” away from compass. Choose a
shaded location since direct sunlight may cause the LCD display to temporarily turn. This does not damage the LCD, but makes it
impossible to read until cooling down. Make a cutout in the instrument panel for the instrument. The instruments’ maximum
depth is 3 ½” minus the thickness of the console panel.
Instrument Series Cutout Size
6500/6600 3 1/16”
7500/7600, 8500/8600, 9500/9600, TwinScan 3 3/8”
• Wiring. Determine wiring run length and the number of switches needed, (always use good quality marine grade switches). Use
18 AWG conductors on runs under 50’. 16 AWG for runs over 50’.
• Run & Connect Wires. Wire one system at a time. Always begin with the Black, “Ground” wires. Each Black sensor wire must
be connected to the Black, “Instrument Ground” wire. Use a single wire to connect these Black wires to the battery’s negative
terminal, or to the ground buss. For the system to operate properly the, “Ground” wires must be connected in this manner.
Connect other wires per the wiring diagram. Leave the RED, power wire for last.
• Tachometer Installation Options. 75/7600, 85/8600, and 95/9600 series tachometers require one or two additional wires. If your
engine isn’t equipped with a tachometer sender, determine which type it requires, (AC Signal Generator or Magnetic Pickup) and
install one. Some engine alternators produce a tachometer signal and can be used as the tachometer sender. Mechanically driven
AC signal generators and magnetic pickups are available from FloScan and most marine dealers. Hewitt, Motorola, VDO and
Stewart Warner are some of the more common brands.
1. Keep Existing Tachometer(s). Connect the FloScan tachometers’ Yellow and Violet signal wires to the existing tachometer.
If the tachometer sender wire(s) are not marked, trace them from the tachometer sender up to the existing tachometer. If one
sender lead is grounded, connect the FloScan tachometers Yellow signal wire to the ungrounded lead or terminal. Connect
the VIOLET wire to a Ground Buss, or Battery Minus.
2. Replace Existing Tachometer(s). FloScan MFI instruments have a 3 3/8” outside diameter. This is a common size and fits
into most instrument mounting holes. Identify the engines’ tachometer sender wires. Connect the FloScan tachometers’
Yellow and Violet signal wires to the sender wires. If one sender lead is grounded, connect the FloScan tachometers Yellow
signal wire to the ungrounded lead or terminal. Connect the VIOLET wire to a Ground Buss, or Battery Minus.
3. New Tachometer(s). Run a dedicated shielded pair of wires between the instrument and tachometer sender, (This is
especially important with Magnetic Pickup senders). Ground the shield only in the engine room.
• Magnetic Pickup & AC Signal Generator Tachometer Senders: Connect the FloScan tachometers’ Yellow signal
wire to one sender terminal. Connect the Violet wire to the other terminal.
• Engine Alternators: Connect the FloScan tachometer’s YELLOW signal wire to the alternator’s tachometer output
terminal. This terminal is usually marked as TACH, or SIG. Connect the VIOLET wire to a Ground Buss, or Battery (-).
• Pre-Startup & Installation Check.
• Always Prime the fuel system before Engine Start-Up. This prevents your engine from becoming air-bound.
• If you have an electric priming or boost pump, circulate fuel for 10 minutes while checking for leaks. If the fuel system does
not have an electric priming pump, use the engine's manual pump. Before starting, slightly open or crack the lift pumps'
outlet fitting. Pump until all air is purged at the lift pumps' outlet. Before start-up, verify that all fuel system fittings are tight.
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