Floscan FloNET Standard Flow Model - Manual (Page 27)

03/16/09 2000-086-00A
PART II: Propulsion Engine Systems
Idle Consumption Adjustment for Forward and Return, Two Sensor Propulsion Engine Systems
• Start and run engine(s) until it is at operating temperature.
• Referring to the switch diagram, rotate the Red and Black switches to position “0”.
• Increase engine speed to 1800 RPM for one minute. This purges any trapped air from the system.
• Return engine speed to low idle and determine its’ consumption from Table 1 below.
1 0
F
E
D
C
B
A
9
6
7
8
5
4
3
2
0%
+2%
+4%
+6%
+8%
+10%
-2%
-4%
-6%
-8%
-10%
-12%
-14%
-16%
-18%
+12%
RED Switch
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
Table 1 No Load Idle Consumption
HP Non-Turbo w/ Turbo Gasoline
100-400 0.1-0.5 GPH, (1-2 LPH) 0.3-0.7 GPH, (2-3 LPH) .5-1.2 GPH, (2-5 LPH)
400-750 0.8 GPH, (3 LPH) 1.0 GPH, (3-4 LPH) 1.2-1.8 GPH, (5-7 LPH)
750-1000 1.0 GPH, (4 LPH) 1.5 GPH, (5-6 LPH) 1.8-2.5 GPH, (7-9 LPH)
1000-1250 2.0 GPH, (7-8 LPH) 2.5 GPH, (9-10 LPH) ---
1250-1500 3.0 GPH, (11-12 LPH) 3.5 GPH, (13-14 LPH) ---
1500-2000 3.5 GPH, (13-14 LPH) 4.0 GPH, (15-16 LPH) ---
2000-3000 4.5 GPH, (17 LPH) 5.0 GPH, (18-19 LPH) ---
• Rotate the Red Switch until the idle GPH or LPH reading matches engine HP from Table 1.
NOTE: At this point idle consumption is approximate. It establishes operating parameters for final calibration.
Part III: Determining Optimum Tank Configuration & Cruise RPM
• Determine the optimum fuel tank configuration for your vessel. If possible, single engine vessels should draw and return fuel to a
single tank. On twin engine vessels, try to configure the fuel system so that each engine draws and returns fuel to its’ own
dedicated tank. If your twin engine vessel has only a single tank, equal consumption rates for both engines must be assumed.
• Close any cross-connect or limber line valves between tanks during calibration.
• Take your vessel for a short cruise. Using the GPH or LPH reading as a guide, determine the best cruising RPM for the way you
normally operate. Don’t be concerned that the readings are slightly off. Calibration is most accurate when done at a single
cruising RPM.
Part IV: Final Calibration
• Return to the fuel dock and top off the fuel tank(s).
• Reset the totalizer so that the Interface Hub totalizer reading is zero.
• Operate the generator under load, or take the vessel for a cruise. Once underway steam at your optimal cruising RPM,
(Determined in Part III). Consume a minimum of 20 to 30 gallons, (75 to 115 liters) 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 FloNET totalizer reading to the fuel pump reading.
• Calculate the percentage difference between the fuel pump & FloNET totalizer readings. Refer to Examples I & II below.
• Determine if the FloNET totalizer is reading High or Low.
• Rotate the Black Switch until the Interface Hub totalizer reading matches the fuel pump reading.
• Starting at “0”, rotating the BLACK Switch in a clockwise direction increases the totalizer readings by 2% for each click.
• Rotating the switch in a counter-clockwise direction decreases totalizer readings by 2%.
• Totalizer readings can be increased by 10%, or reduced by 20%.
Single Engine Vessels: Please refer to Example 1, Port system, on the following page.