Tilt hydrometer

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Re: Tilt hydrometer

Unread postby Nashbrew » Tue Nov 28, 2017 12:12 pm

grooves wrote:Good stuff!

I've just ordered a bunch of components - I'm rolling my own - I reckon I can save a tenner, and I'll see if I can fit it in the smaller PETling. I'm also building a BrewPiLess to integrate with the iSpindel. Any gotchas to look out for?


A small issue of not flashing the thing caught me out :?

The issues I am having is with the calibration, spent Sunday with sugar water at 1.080 then diltuting and taking readings
right down to 1.010 with a refractometer and tilt readings, done the calculation and thought all was good.
Brewed on Sunday had a OG of 1.046 with the refracometer and a reading of 1.035 with the ispindel so will be following it this brew taking readings with the refractometer twice a day then will re do the maths in the ispindel.

Also had to insulate the SS fermenter lid clips as not to make a Faraday cage.(WiFi could not escape :wink: )
Other than that it has been good fun.
Don't forget to wake up breathing!
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Re: Tilt hydrometer

Unread postby grooves » Tue Nov 28, 2017 3:12 pm

How are you fitting to the tilt data?

I've read on another forum that the iSpindel needs to be at 20-25 degrees tilt in 1.000 water to be in a range that is roughly linear - and most people have to add a 20g weight to get this. Otherwise you have to fit to a cubic function.
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Re: Tilt hydrometer

Unread postby Nashbrew » Wed Nov 29, 2017 5:22 pm

Yes had to trim with some blu-tac and a m10 nut
Settled for 27 degrees and then calibrated from there
Don't forget to wake up breathing!
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Re: Tilt hydrometer

Unread postby grooves » Mon Jan 22, 2018 4:10 pm

I've been messing around with BrewPiLess + OLED display, so only just finished my iSpindel. Looking forward to using both BrewPiLess and iSpindel on the next brew!
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