Vinmetrica SC-100A SO2 Analyzer Kit

Vinmetrica SC-100A SO2 Analyzer Kit

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The SC-100A puts you in control of your wine sulfite analysis. It’s highly accurate and sensitive titration system conveniently alerts you visually and audibly when the endpoint is detected by its electrode.

Because it doesn’t rely on a color change, the SC-100A eliminates the guesswork in Ripper sulfite tests, especially in red wines!

The SC-100A analyzer gives you confidence to run your sulfite assays accurately and quickly. Kit includes everything to perform approx. 50 tests: electrode, reagents, pipettes, syringe and beaker.

How It Works:

The SC-100A improves on the tried and true Ripper Method by eliminating the guesswork in colorimetric analysis and replacing it with digital detection indicators.

It uses an amperometric electrode and replaces the iodine reagent with a more stable reagent. Its ease of use and accurate amperometric titration method vastly improves on the original Ripper Method.

The SO2 Titrant reacts with the sulfite in the wine. When all the free SO2 is titrated, the endpoint is signalled by visual and audible indicators. The test endpoint is much more sensitive than the starch endpoint commonly employed for sulfite titrations. It’s sharp and clear, even when titrating red wines and musts.

Once the syringe titration is complete, determine the titration volume (which is the difference of titrant you started with and its final reading on the syringe) and multiply it by 20 (the conversion factor).

The conversion factor takes into account the known concentration of the titrant and some simple unit conversions to determine the ppm Free SO2 in your wine sample. So for example if you used 1.2 mL of SO2 Titrant during the titration, your equation would look like this:

1.2 mL X 20 = 24 ppm Free SO2

Simple To Use
  1. Attach SO2 electrode, press the power button, change to ‘SO2′ mode and press enter.
  2. Draw up 5 mL of titrant into the syringe. Then place 25 mL of wine in beaker.
  3. Add ~2 mL of the acidifier and ~2 mL of the reactant to wine.
  4. Place and hold the SO2 electrode into the wine sample and swirl beaker.
  5. Add titrant dropwise, pause when device beeps, until 15 seconds of beeps reached.
  6. Multiply the titration volume by 20, the SO2 conversion factor, results in ppm Free SO2.

Complete Kit Includes Everything You Need for Your First 50 Tests!
  • SO2 reagents
  • Titration beaker
  • 5 mL syringe
  • SO2 electrode
  • 25 mL sampling pipette
  • 2 transfer pipettes
Item # MT560
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 3LBS
Community Q&A

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Why did you choose this?
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Friend recommended this unit
William M on Oct 8, 2019
Good unit, price
Lone Oak W on Aug 28, 2019
Friend recommended this unit
William M on Oct 8, 2019
Inez V on Aug 30, 2019
Good unit, price
Lone Oak W on Aug 28, 2019
john l on Mar 1, 2019
Need to check free SO2 in more than a dozen carboys!
John M on Feb 12, 2019
To check So2 levels In my wine
Mark B on Jan 15, 2019
Cost effective initial solution for winery lab
Michael D on Sep 11, 2018
Friend's recommendation
Cecilia D on Sep 1, 2018
Looked like an easy way to measure SO2 levels
James Salzman on Jun 26, 2018
Already have the sc-300, this is a back up to that.
Chip B on Jun 12, 2018
Was just the tool I meed for my home winemaking.
Rodney E C on May 31, 2018
Want to do a better job controlling sulfites
John D on Apr 30, 2018
need to detrimine SO2 levels in my wine
George S on Mar 9, 2018
I wanted a faster easier SO2 test for my cidery
William L on Jan 23, 2018
Balance of price and reliabity in a necessary control parameter.
Robert A on Jan 15, 2018
Inez V on Aug 30, 2019
john l on Mar 1, 2019

4.2 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
If you are concerned about free SO2 in your wine, buy this item
The SC-100 is easy to use and gives reproducible results on free SO2 in wine. You need a good pH meter as well, but it allows accurate SO2 determination and is much cheaper and faster than sending wine samples out for analysis, which is the only other option.
August 24, 2019
2 months ago
Easy and accurate.
Perfect meter to help keep the SO2 in check. Easy to use and great improvement in our finished wines.
October 12, 2018
1 year ago
Worked well but should have came with ph test strips or notified they are nessasry to do the test.
Would've got 5 stars.
June 14, 2018
1 year ago
Works as indicated
Maybe a bit fiddly if you have not performed analytical methods via titration before but I found the method reasonable and able to direct me towards appropriate addition amounts for my wines in process (barrel aging) and bottling. I think it has the appropriate fidelity for the hobby wine maker vs. just periodically adding bisulfate on a guess. I recommend this product. The only reason I gave 4 stars vs. 5 is there is no detailed information regarding the titrant and reagents so you are beholding to Vinmetrica to buy more from them.
April 7, 2018
Appreciated free SO2 test kit
I give this a 4 Star only because I have just used it a few times. But I appreciate this item because I no longer have to guess at the shade of pink/purple with the accuvin free SO2 tests. Also this will be much more cost effective especially now that I perform more free SO2 tests with the variety of wines I make. This takes a tad bit more time to test free SO2 but I feel much more confident with my readings now.
February 15, 2018
1 year ago
Easy to use. I like the audible tone that tells you when you are close to your endpoint. Test takes literally 2 minutes. Accuracy seems pretty good.
January 27, 2018
1 year ago
Now I'm in control
The Vinmetrica works great. Once it is set up I can speed through multiple wines in no time and know my SO2 levels are correct
January 23, 2018
1 year ago
Excellent and accurate testing
Very pleased with this tester. I also purchased the aeration-oxidation and have tested them on the same wine at the same time and found them to verify each other. This way is much simpler and faster. Outstanding device. Would recommend without reservation

One piece of advice.. purchase an inexpensive magnetic stir plate. helps to mix the sample while performing the test
January 13, 2018
1 year ago
Great system for small wineries
As a commercial winemaker for Camp Creek Cellars, I have used the Vinmetrica SO-2 analysis system for the past two years. There is a learning curve for the titrations, but once you get it down this system is wonderful. We run 20 samples at a time every 6-8 weeks and the probe has lasted two years without problems. Our savings from this system have been significant. Now they just need to develop a nitrogen analysis system for crush!!
May 22, 2017
Worked once or twice
Yeah the titration technique is a bit cumbersome, but it would be worth it if I thought it was accurate. I think I actually got a couple of accurate readings, but by the 3rd or 4th use, it was worthless. I used a known 50 ppm solution and the meter hadn't even registered anything with enough titrant for 100 ppm. I suppose the electrode needs replacing; another $50.
April 26, 2016