Posted by: @admin

Only the 50-0016.pdf can be used. The other one has a 20mV sinus signal, which would not be any good. 

1-2 months should be possible for native support, but you could just use a frequency to voltage converter while waiting.

HI Jostien

Have you any update on fuel flow? Just got our Dyno finally working well and would like to add fuel flow to calculate BSFC.

Thanks

Thank you  

I'm not finished with my dynamometer yet so l can wait a little bit 🙂 

Only the 50-0016.pdf can be used. The other one has a 20mV sinus signal, which would not be any good. 

1-2 months should be possible for native support, but you could just use a frequency to voltage converter while waiting.

https://static.rapidonline.com/pdf/50-0002.pdf

https://static.rapidonline.com/pdf/50-0016.pdf

1 of those im going to buy,

do you think the update for pulse signal will be in like 1-2 months? if so im going to buy that one. otherwise its maybe better with det other one?

/Glenn

Thanks for that. 

I have decided to buy from this company and not from the others. 

Https://www.btflowmeter.com/en/flow-meter-products/dfm-pom-pvdf-ectfe-series-q-05-21-lpm-for-chemicals-oil-diesel-water-glycole/dfm-pom-16-lpm-15016204-pnp.html

So l have one last question .

The square output signal is npn or  pnp. Which one is the right?

There is also a option with a analog sinus signal 4-20ma. I Think it is 0-10v. Is that maybe better/cheaper to use ? Or is a sinus signal wrong to use ? 

If it has CANBus youd use the digital CAN signal from that.
If its only has frequency like your 2nd listing then youd use a frequency to voltage converter.

Something like this works as an interface between the fuel flow sensor to YourDyno:

https://monarchinstrument.com/products/f2a1x-frequency-to-analog-converter-tachometer

There are probably much lower cost alternatives, search for Frequency to analog

Thanks. I'm having a manual so im going to see what l can find in it.

Have l understand you right that l need to convert the can signal to analog 0-5v?

Do you recommend any stand alone fuel counter box to buy? 

Posted by: admin

@bmgjet, can you assist in this one? I imagine the CAN j1939/S6 is the answer here, but what is necessary on the plugin side to read this CAN signal? 

Id either need one to sniff the CAN data from to work out data from.
Or need specs on CAN msgid, frame lay out, conversions for bytes to values which there datasheet on there website is missing.

The bottom one you can just use an arduino for frequency to 0-5V and proably be able to put a plugin together quite easily.
Or use a stand alone fuel counter box with it which is what I have on bench dyno so we know how much to charge for fuel.
It says total fuel usage and peak flow rate which you can estimate efficency from vs peak power.

@bmgjet, can you assist in this one? I imagine the CAN j1939/S6 is the answer here, but what is necessary on the plugin side to read this CAN signal? 

I have talked with the company now and l got a price list. if someone is interested l can share it  

They told me that can is more stable than pulse.  So lm not going to use pulse signal. Which signal i best/ easiest to use? 

CAN j1939/S6 , RS-232, RS-485 

Best regards 

Glenn 

That looks really good. Let us know when you get the price of it. 

With a plugin you can use 2 sensors for difference calculations. Note that the sensors need to be very accurate, maybe calibrated together, for the result to be accurate. 

Okay thanks  

I have looked  at this sensor but im not sure what it will cost. https://www.sentronics.com/products/flowsonic-lf/

Or something from here 

https://www.massflow-online.com/shop/en/fuel-flow-meters-liquid-24/

Is it possible to use 2 sensors (in and out ) and calculate the difference in yourdyno? 

The analog voltage sensor can be connected to YourDyno via a voltage divider (such that you get 0-5V instead of 0-10V). Then go into the Aux setup and set 0V = 0 liters per minute and 5V = xx liters per minute (or gpm or whatever you use). 

There is support for CAN with YourDyno (through the CANTool plugin). What CAN sensor are you looking at? 

The digital TTL is quite common, and this is the unit that would need a firmware and software upgrade to enable.