One of the key capabilities of the AutoTester is that it allows you to define Colormetric tests to run. Colormetric tests are chemical tests with reagents where you start with a given amount of water to be sampled, add drops of reagent X, some more drops of reagent Y, shake it and see what color results. Any test using liquid reagents (work is underway to add powdered reagents) and results using color can be performed by the AutoTester.
There are two main types of colormetric tests. The first is direct read. In that test you add various reagents to the sample and observe the resulting color. A dark brown for example is associated with one value, a lighter brown, is anothe value, tan is a different value, yellow is yet another value. In general, these tests will provide a color sheet that has expected colors and what values they translate to. In some cases it may be on a card, printed on a bottle, on the reagent tube, etc. To set one of these tests up on the AutoTester, follow the instructions here.
The second type of test is a titration test. In this you take the sample, you may add some reagents, but the last step is to count drops. You add drops of reagent until the sample changes for example from blue to red. The number of drops added to get to the color change translates to the result. To set up a titration test on the AutoTester, follow the instructions here.