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The next step is to take note of where you plugged in the sensor. It should be plugged into the top row and there should be a number value above.
For the environmental processes teaching laboratory, the benches are in Mod 1. In the AguaClara labs, the addresses are Mod 4. You should select the module and then the channel as indicated by the number into which you have the sensor plugged.
After you have accomplished this, you should try to make sure that the pressure sensor is sensitive to changes. Try applying pressure to the side facing out on the pressure sensor. There should be a measurable change in pressure. If you are convinced that you are in the right port and see no change in pressure, try pouring in about 2 L of water into the larger tank. You should see a difference now.
The next step is to zero the pressure sensor. With the tank fully drained of water, "zero" the sensor. The pressure reading should be close to zero.
