Floscan 5A20-20A-1 AccuTroll & CruiseMaster - Manual (Page 20)

08/20/2004 4001-102-00I
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
5. In, “Diagnostic Mode” the totalizer will count at 1 gallon or 1 liter per second. If it does not, the
Instrument is defective.
6. With the BLUE wire floating, (Disconnected) on single engine systems, or the Port/Starboard select switch set to Port on
twin engine systems, the pointer should read approximately:
5 GPH models 4.5 20 LPH models 18
10 GPH models 9 40 LPH models 35
20 GPH models 18 80 LPH models 70
32 GPH models 28 160 LPH models 140
50 GPH models 45 500 LPH models 450
100 GPH models 90
7. With the
BLUE wire connected to the Instruments’ BLACK wire on single engine systems, or the Port/Starboard select switch set to
Starboard on twin engine systems, the pointer should read approximately:
5 GPH models 0.25 20 LPH models 1
10 GPH models 0.5 40 LPH models 2
20 GPH models 1 80 LPH models 5
32 GPH models 2 160 LPH models 10
50 GPH models 2 500 LPH models 20
100 GPH models 5
NOTE: If readings are significantly Higher or Lower, the Instrument may be defective.
8. Turn switches 1, 2, 3, 4, 5, 8 and 9 OFF, leave 6 and 7 ON.
9. Disconnect the WHITE and BROWN wires at the Instrument. Connect a course thread, (½ - 13) or similar non-plated bolt to
the BLACK wire.
10. With the BLUE wire floating, (Disconnected) or Port/Starboard select switch set to Port, vigorously run the WHITE wire up
and down the bolt threads. This generates a pulse and should lift the needle off zero. The totalizer should also eventually start
counting. Faster movements give higher readings.
11. With the BLUE wire connected to ground or the Port/Starboard select switch set to Starboard, vigorously run the BROWN
wire up and down the threaded bolt as described above. This generates a pulse and should lift the needle off zero. The
totalizer should also eventually start counting. Faster movements give higher readings.
12. If the Instrument passes steps 10 & 11, return switches 1-9 to their original position, and proceed with Part II. If not contact
FloScan Technical Support.
NOTE: Occasionally a good Instrument will fail the, (Bolt Scratch Test).
II. TEST FLOW SENSOR(S)
1. With your voltmeter set to a DC scale greater than 14 volts, measure between the RED (+12VDC) and
BLACK (Instrument ground) wires. With engine idling, measure and record the voltage reading. ___________VDC
2. Move the voltmeters’ negative lead to the WHITE (Signal) wire. With engine idling, measure and record
the voltage reading. Readings between 4 and 10 VDC, usually indicate a good sensor. ___________VDC
3. Stop the engine while observing the voltmeter. Readings should fluctuate between a high of 9 to 12 VDC,
and a low of 0 to 4 VDC as the sensors’ turbine slows to a stop. ___________VDC
NOTE: This may not be seen on a digital voltmeter.