Featuring 2 channels of water level switching and 3 of thermistor temperature measurement, this low cost
add-on is ideal for applications involving level control and temperature measurement. It was originally designed
for a milk storage and chilling system with vat cleaning, but is equally suited to applications in
washing equipment, brewing or liquid food processing.
The principle of the water level detection is that you have electrodes in the water. One electrode is a "common".
Typically this will be at the bottom of the tank, or if the tank is metallic it might be the tank itself.
You then have one electrode per level that you need to sense. Once the water bridges the gap between
the common electrode and a "level" electrode, the board senses the electrical conduction and provides
an "ON" input to the controller.
NOTE: The animation shows 3 levels. The SPice 10200 has 2, while the
SPice10205 has 6.
