Gravity Analog Electrical Conductivity Sensor / Meter (K=10)

Help & Support Robot Parts
1

Does the salinity sensor need to be submerged in water the whole time or cannot be dry and wet? Also, does it have a way of detecting water?

Thanks!

2

Here in this description DFR0300-H - Gravity: Analog Electrical Conductivity Sensor | DFRobot Electronics and product wiki Gravity_Analog_Electrical_Conductivity_Sensor_Meter_K=10_SKU_DFR0300-H-DFRobot it shows that the sensor has to be immersed in water. But it also says that:

1.The probe is a laboratory-grade probe. Do not immerse in liquid for a long time. Otherwise, this will shorten the life of the probe.
2.Platinum black layer is attached to the surface of the sheet metal in the probe. It should avoid any object touching it. It can only be washed with distilled water, otherwise, the platinum black layer will be damaged, resulting in an inaccurate measurement.

The sensor has no straightforward water detection feature. But I assume that there will be a large difference between the dry surface output and the fully immersed output. Thus, your Arduino will be able to understand whether there is any water or not.

2 Likes