The scale in the refractometer goes between 0 and 30. The instructions show a scale between 1.000 and 1.070. I think the wrong unit was sent.
488701
This measures BRIX. It's a simple conversion to get your gravity. Google "how to use a refractometer"
1933503
Hi there, I wish I could help you , but I'm not sure how its done. The scale I have doesn't go to that measurement. Sorry !!!
200024
Is the 5 there when you zero it? Mine has the 5 too, but only when the measurement is between tenths which is quite often as that is a very small amount and the device is very sensitive. It means 5/100 of a degree or 1.05 for 1 and 5/100 of a degree. The specs say its resolution is 0.05 degrees. So it would not measure 0.04 or 0.06, just increments 0.05.
2015825
During the calibration procedure it only asked for the 200 gram weight, not the 100 gram one, so I don't know what others are talking about. BTW, I spent a bunch of time calibrating this down to .01, only to realize that it will vary depending where on the scale platform you place the idem being weighed, so it's kind of a waste of time.
576181
Here is some info from CNCZONE which I found when researching (The answer to your question is .1" per revolution): "BTW, the silver scale is calibrated with 100 dial markings per revolution (and the leadscrew appears to have 10 threads per inch, therefore each mark is apparently equivalent to .001"). However I'm not sure that I understand the reasoning behind (and usage of) the markings on the fixed scale - it doesn't seem to be acting as a vernier readout, but maybe I'm simply confused -"
854291
I don't recommend M. Gonzalez' solution. I calibrated to 1000g. My 500g weight then says 667g. Calibration is not linear.
165764
Unfortunately not. The reading changes instantly. I had to buy a bowl with a bottom diameter about the size of the scale one.
2105721
yes, when I received my refractometer it was dead on. in the instruction you can test the refractor with distilled or RO water to calibrate the refractor.
1806793
The accuracy of this scale is 1 g so it will automatically round off to the nearest gram. Therefore it will not accurately measure/recognize the difference between 1.8 and 2.2 g. If you need accuracy to +/- 0.1 g you need a different scale. However for cooking purposes 1g accuracy is all you need.
1496027
Lisa here are the numbers on the comparison chart of the container, it reads. 4.5, 5.0, 5.5, 5.75, 6.0, 6.25, 6.5, 6.75, 7.0, 7.25, 7.5, 8.0, 8.5, 9.0. Hope that helps.
166121
There is a 1 page sheet of instructions but it is hard to learn from scratch from this. What I would recommend is going to Youtube. There are a lot of people offering instructions on how to use these devices. The best one is Starla Turner. Her instructions are detailed and she goes through each device step by step. If you type in "how to use refractometer starla turner" ,you can find her. Then search her channel for all the other devices. Good luck!
1365193
I can find no salinity refractometer with those scales. Send it back. If you didn't get what you ordered, they need to make it right.
8862
I checked the users guide and do not see any information about calibration of the unit. There is a support number you can call.
4666
I have found it to be quite sensitive to minute changes but I don't use calibration weights. The smallest units are 0.05 (1/20th) ounce and 1 gram (30 grams ≈ 1oz). Considering that 1/8th tsp is roughly 1.125 grams, you have to decide if that's sensitive enough for your needs.
814584
Hey you properly calibrated it by using RODI water. You must put RODI water where you use it for the saltwater then just above it is a black cap an under the cap is a screw to calibrate it. So look into the eye part then adjust it to zero then it should work fine
118246
Hi Aaron, thanks for your e-mail and question! The model number "RSG-100ATC' refers to a class of Chinese made 0-32% Brix and 1.000-1.120 Wort Specific Gravity Refractometers. While these units were groundbreaking in that they had the Wort SG scale on the unit, they were inherently flawed. Those units still use the "% Brix x 4 = Wort SG" linear formula to deduce the Wort SG - which is wrong. The "RSG-100ATCc" is a better unit in terms of accuracy when compared to the other units sold on AMAZON and eBay, but not better than the BREWfractometer and BREWfractometer Extreme (BREWx). The BREWfractometer and BREWfractometer Extreme (BREWx) are the most accurate Beer/Wine Refractometers on the planet. So our "RSG-100ATCc" is an amazing piece of technology - it is more accurate than most other units AND it is insanely inexpensive! Please note that the readings of Refractometers will be effected by the presence of ALCOHOL and become in accurate. Once fermentation begins, please use the readings in conjunction with an online conversion chart - Northern Brewer and Sean Terrill have ones that convert your FG (and almost FG) readings into useable info. Another thing to be mindful when using a Refractometer is to be sure that your sample has no grain grit or other solid particles. If light gets blocked by those sample particles, the reading will be hard see. For best results, use a strong light source and be sure that your sample is free from grit, pulp or debris. I hope that helps you out! We are here to help you brew better beer! Cheers!
2005912
The device has a limited range - max. 30% sugar in solution. Since honey is +/- 70% sugars, you would have to perform controlled dilutions to bring your solution into the instrumental range. Unless done very exactly, the results would quickly become meaningless. I see that Brushy Mountain sells a refractometer with a range up to 90% for about $80 (on Amazon). That has to be both easier and more accurate.