Floscan FloNET Standard Flow Model - Manual (Page 4)

12/12/2011 2000-080-00A
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
Hoses should not be twisted, have adequate slack, an ample radius at all bends and be adequately supported at reasonable
distances, approximately 2-4 feet. AP-50 copper sealing washers or Flaretite fitting seals may be required to seal JIC & SAE
fittings.
IV. Electrical Installation:
If the NMEA 2000 backbone has not been run into the engine room, open and survey your vessel’s wire ways and determine how
and where it should be run.
Measure the cable length distance from each sensor. Wire each Sensor to the NMEA 2000 Interface Hub with 18 AWG, 3-
conductor shielded cable. Always connect the cable shield drain to the vessels bonding system or engine block.
Wire Terminations—referring to the wiring diagram, connect the Sensor(s) to the NMEA 2000 Interface Hub and the Fuel-Tron
to its display cycling switch with crimp type butt or ring connectors. Always cover connectors and wire ends with heat shrink
tubing.
Isolated Ground Electrical Systems: FloScan manufactures 12 VDC to 12 VDC, (PN 7000-097-00) and 24 VDC to 12 VDC,
(PN 7000-096-00) Isolated Ground Power Supplies / Voltage Reducers. These power supplies electrically isolate the FloScan
system from ship’s power and are used by the Washington State Ferry System and other large steel and aluminum vessel
operators. Additionally mounting sensors onto a non-conductive surface and using short lengths of non-metallic fabric braid fuel
hose to connect them further isolates the system.
Diesel Fuel is non-conductive but does contain a, “Static Electricity Dissipater” additive to minimize the risk of fuel tank fires
and explosions. Even with this additive, the electrical resistance of Diesel Fuel is extremely high and can be considered non-
conductive. Installing the FloScan system with Isolated Ground power Supplies, Non-Conductive Sensor Mounting Surfaces and
Fabric Braid Fuel Hose will electrically isolate it from the vessel’s hull.
V. Pre-Startup:
• 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.
VI. Instance Selection:
Refer to the Instance Selection & Operation sheet to determine the correct Instance setting. When known, place the White
Recessed Arrow Switch at the correct setting.
VII. Operation Selection:
Refer to the Instance Selection & Operation sheet to determine the correct Operation setting. When known, place the Green
Rotary Switch at the correct setting.
VIII. System Start-Up:
Start and run your engines. Look for leaks and other installation problems. If system is not operating properly refer to the
Troubleshooting Instructions and correct any deficiencies.
IX. Calibration:
When system is running properly, refer to the calibration instructions and calibrate your system. If installed properly, initial
calibration takes less than one hour. After consuming some fuel, final calibration should only take a few minutes.