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Hi Nicky. Just replied to your email. It sounds like it needs charging. You should get a red then blue charging light. Have you checked the charger/cable?
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I used Ubidots for one brew, seemed to work ok. Then got a Nautilus iSpindel relay and just took one reading a day and plotted in Excel. Attached are examples. The iSpindel is a great tool for monitoring your brews.Ubidots or GF app to track it? Just got my bday present out the bag.
Sugar (g) | Water (g) | Tilt | SG (Hydrometer) | SG (Refractometer) | SG (Theoretical) |
220 | 1000 | 59 | 1.077 | 1.081 | 1.084 |
220 | 1400 | 48.5 | 1.058 | 1.060 | 1.060 |
220 | 1700 | 41.4 | 1.048 | 1.050 | 1.050 |
220 | 2100 | 35.9 | 1.040 | 1.041 | 1.040 |
220 | 2800 | 30.6 | 1.030 | 1.032 | 1.030 |
220 | 4200 | 25.8 | 1.020 | 1.021 | 1.020 |
25 | 975 | 21.3 | 1.011 | 1.010 | 1.010 |
0 | 1000 | 17.8 | 1.001 | 1.000 | 1.000 |
Personally I'd omit the top value. However,Could someone offer me a bit of advice here. I've just spent a while calibrating the iSpindel. Whilst doing it, I also measured the SG with both the hydrometer, and refractometer, as well as calculating the theoretical SG using this calculator (I measured out all sugar and water using accurate scales).
Here are my readings
Sugar (g) Water (g) Tilt SG (Hydrometer) SG (Refractometer) SG (Theoretical) 220 1000 59 1.077 1.081 1.084 220 1400 48.5 1.058 1.060 1.060 220 1700 41.4 1.048 1.050 1.050 220 2100 35.9 1.040 1.041 1.040 220 2800 30.6 1.030 1.032 1.030 220 4200 25.8 1.020 1.021 1.020 25 975 21.3 1.011 1.010 1.010 0 1000 17.8 1.001 1.000 1.000
I was a bit dubious about the initial high gravity reading. Firstly, the hydrometer, refractometer and theoretical SG are all way out (whereas the others are about as consistent as I would expect from my equipment and experimental error).
Secondly, if I omit the first result, then the calibration tool gives me a fairly good cubic line through all the points:
View attachment 72254
However, if I include the first measurement (~1.080 SG), then it seems to be way off the cubic line if using the theoretical value:
View attachment 72255
It's better with the hydrometer-measured value, but still not a good fit:
View attachment 72256
Any suggestions as to what to do? I don't really want to go through the process again if I can help it. Should I just omit that high SG point and use the curve from the remainder of the data (that at least seems consistent)?
Yes, fully agree. Once the device gets a bit of crud on it the values can be slightly out anyway. I went OTT calibrating initially, but am now happy that I get a nice indication of progress. OG and FG values are fairly close I have found, with FG usually a few points higher due to the crud.Are you likely to be brewing up to 1.08? If not, then dont worry about it and use the 2nd degree polynomial.
You always have to keep in mind that you'll only every get an approximate result unless you directly measure the SG. The iSpindel can be very accurate, and is great for monitoring the general trend, but chasing exact numbers will have you going nuts!
Most of the time, I don't brew up to that strength, so it probably won't worry me too much. But the next brew I am going to do (the first with the iSpindel) will be a N'Ice Chouffe clone, at about 10% ABV, which will probably start in the region of 1.080-1.090.Are you likely to be brewing up to 1.08? If not, then dont worry about it and use the 2nd degree polynomial.
You always have to keep in mind that you'll only every get an approximate result unless you directly measure the SG. The iSpindel can be very accurate, and is great for monitoring the general trend, but chasing exact numbers will have you going nuts!
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