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Old 11 June 2014, 17:40   #51
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Hope you do better.
Fingers crossed!

P.S. Can you take a pic of the two sensors side by side when you get back?
Ok i looked at the sensors.

The one attached to the digital meter does not have a spec label, but the instruction manual does say 3-60 liter/hour.

The stand alone sensor has a label which states 0.05 - 1.0 lpm (so also 60 l/hr)

This is strange as the PDF data sheet (link below) from Savant Electronics who are the manufacturer states it's rated at 30 l/ph.
http://www.digisavant.com/PDF/FS-3400AH-Spec.pdf

I have emailed Savant Electronics to ask which is correct.

Photos below of the flow meters.
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Old 11 June 2014, 20:48   #52
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I just received this response from the manufacturers...

Hi Simon,

The flow range should be 0.05-1 liter/min.(3-60 liter/hour). I will revise the FS-3400AH specification on the web site immediately.

Best Regards,
George Liang
Savant Electronics Inc.
1670-3, Sec. 1, Huanzhong Road, Taichung City, 40761 TAIWAN
tel : 886 4 2425 5578
fax : 886 4 2425 0396
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Old 12 June 2014, 02:11   #53
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I just received this response from the manufacturers...

Hi Simon,

The flow range should be 0.05-1 liter/min.(3-60 liter/hour). I will revise the FS-3400AH specification on the web site immediately.

Best Regards,
George Liang
Savant Electronics Inc.
1670-3, Sec. 1, Huanzhong Road, Taichung City, 40761 TAIWAN
tel : 886 4 2425 5578
fax : 886 4 2425 0396
WOW! That was fast.

I am going to try the sensor again, this time placing the sensor in a different position in the fuel line.
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Old 12 June 2014, 05:05   #54
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How much fuel do you think your Tohatsu uses at full throttle?
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Old 12 June 2014, 05:08   #55
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How much fuel do you think your Tohatsu uses at full throttle?
According to the Manual 54l/h at WOT
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Old 12 June 2014, 15:52   #56
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Savant seems to have revised the datasheet but actually made it even more confusing. They now state 30l/h at one point and 60l/h at another.

Moreover, they have changed the calibration table, so now instead of 2000 pulses per liter , it is 1724 per liter

You can see the old datasheet here

and the new one here

I guess I will have to measure it myself...
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Old 14 July 2014, 16:36   #57
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Did you manage to measure the pules?
I have my boat at home now, so might crack on and get the gizmo fitted this weekend before i go on holiday.
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Old 14 July 2014, 16:38   #58
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Did you manage to measure the pules?
I have my boat at home now, so might crack on and get the gizmo fitted this weekend before i go on holiday.
Yes its about 1818-1820. Good luck. Changes I made in the configuration of the fuel line made it work!
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Old 14 July 2014, 18:47   #59
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Great stuff

What method did you use to calibrate the flow meter?

What i need is a pulse counter option on the phone app. So i press a Start button, then feed it with 1 liter and it shows me the number of counts
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Old 14 July 2014, 18:51   #60
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Great stuff



What method did you use to calibrate the flow meter?



What i need is a pulse counter option on the phone app. So i press a Start button, then feed it with 1 liter and it shows me the number of counts

I Wrote extra arduino code that counts Pulses and displays it in Serial monitor.
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