Description: Gravity - Analogue water and soil salinity sensor - DFRobot DFR0300-H.
The device allows to measure thesalinity of waters and soilsby examining the inverse of the resistance, which is conductivity. If the salt level is too high, this can lead to the destruction of the plants, and if it is too low, it can mean a nutrient deficiency. Water conductivity may reflect the level of electrolytes present in the water. Depending on their concentration, the conductivity of the water solution varies.
The diagram of connecting the sensor with Arduino.
For better measurement it is recommended to use a temperature sensor, e.g.DS18B20probe.
Main features of the salinity sensor
- Wide input voltage range from 3 V to 5 V, output voltage from 0 V to 3.2 V.
- BNC and Gravity connector, quick and easy connection.
- Library for single-point calibration, automatic identification of the buffer solution used, temperature compensation algorithm.
- Unified size and connector.
Salinity sensor specification
- Input voltage: 3 V to 5 V
- Output voltage: 0 V to 3.2 V
- Probe connector: BNC
- Plate connector: Gravity PH2.0 - 3-pin
- Measurement accuracy: ±5% F.S
- Probe type: laboratory
- Conductivity electrode: constant electrode K = 10
- Detection range: from 10 ms/cm to 100 ms/cm
- Operating temperature: 0°C to 40°C
- Probe life: 0.5 years (depending on frequency of use)
- Cable length: 100 cm
- Dimensions of the plate: 42 x 32 mm
The set includes
- 1x conductivity electrode
- 1x signal conversion plate
- 4x 12.88 ms/cm buffer solution
- 1x analogue cable Gravity
- 2x waterproof gasket
- 1x nut of BNC connector
- 4x nylon distance M3x10
- 8x M3x5 screw