Flowscan - twin motors - one gauge with toggle switch

DonB4Lori

Cadet
Joined
May 31, 2010
Messages
16
Hi, my starboard Flowscan GPH always reads, the Port sometimes does not read, intermittent problem, I will assume that I can double the GPH reading to get an idea of the total GPH while I am running etc.

My single gauge has an LED readout of "Gallons" used, my question:

Is the "Gallons" used reflecting one motor or both?

Thanks
 

Fireman431

Rear Admiral
Joined
Sep 17, 2007
Messages
4,292
Re: Flowscan - twin motors - one gauge with toggle switch

Hi, my starboard Flowscan GPH always reads, the Port sometimes does not read, intermittent problem, I will assume that I can double the GPH reading to get an idea of the total GPH while I am running etc.

Yes, you can double the Stbd reading for the true usage, but it's always better to fix the offending signal. This is to help you identify if there's a fuel usage problem, such as one engine burning 20% more fuel than the other. It's a good idea to switch between them occasionally while underway to make sure they are burning the same.

Since you have intermittant issues with it, you more than linkely have 1 of two issues.

1) Interruption in either the 12v+ or 12v- signal. When it's NOT working, check the power and ground lead for connections.
2) A dirty or clogged paddlewheel in the sensor. Take the cover off of the housing in the fuel line, clean the screening filter & paddlewheel so it can detect the true fuel flow and reinstall.

My single gauge has an LED readout of "Gallons" used, my question:

Is the "Gallons" used reflecting one motor or both?

One motor. The gauge can only record the info from one sensor at a time. If both engines have been run the same, if the LCD reads 50, it's 100 gallons total.
 

fendersfender

Petty Officer 1st Class
Joined
Mar 23, 2005
Messages
317
Re: Flowscan - twin motors - one gauge with toggle switch

Well........not sure if all flowscans are the same, but the lcd read-out shows TOTAL fuel used for both engines on mine, while the gph needle will only show info for either port or starboard engines......
 

DonB4Lori

Cadet
Joined
May 31, 2010
Messages
16
Re: Flowscan - twin motors - one gauge with toggle switch

Thank you for the reply, OUCH on doubling the LED readout, do you think switching the sensors from Stbd to Prt would help troubleshoot the intermittent problem, I did take the senor off previously and blew through it and it seemed clear.

Thanks
 

Fireman431

Rear Admiral
Joined
Sep 17, 2007
Messages
4,292
Re: Flowscan - twin motors - one gauge with toggle switch

Well........not sure if all flowscans are the same, but the lcd read-out shows TOTAL fuel used for both engines on mine, while the gph needle will only show info for either port or starboard engines......

Must be available either way. Mine records total burned according to the needle, not from both engines.

Here is an excerpt from the FloScan webpage on my model (5532):

Twin engine models show the individual flow rates to each engine with an external toggle switch. The totalizer records the fuel consumption of one or both engines and can be reset with an external toggle switch.
 
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