RS485 Digital Conductivity Sensor TDS Salinity Sensor 200μS/cm
range PG13.5 thread
>>Overview
Since water contains various dissolved salts that exist in the form
of ions, when electrodes are inserted into water and electricity is
applied, these charged ions migrate in specific directions under
the electric field. The movement of anions towards the anode
enables aqueous solutions to conduct electricity. This conductive
capacity of water is termed conductivity. As the reciprocal of
resistivity, conductivity reflects the total dissolved salt content
in water and serves as a crucial water quality indicator,
demonstrating the presence of electrolytes in water. The degree of
electrical conduction varies with electrolyte concentration in
solutions. By measuring solution conductivity, we can analyze the
dissolution degree of electrolytes - this constitutes the
fundamental analytical principle of conductivity meters.
Conductivity shows significant temperature dependence. Metallic
conductivity decreases with rising temperature, whereas
semiconductor conductivity increases with temperature. Doping
levels in solid-state semiconductors can dramatically alter
conductivity, where increased doping leads to higher conductivity.
The conductivity of aqueous solutions depends on the concentration
of dissolved salts or other chemical impurities that dissociate
into electrolytes. Measuring water conductivity serves as an
important parameter for assessing its salt content, ionic
components, and impurity levels. Lower conductivity (higher
resistivity) indicates purer water. Water conductivity is often
recorded as conductivity coefficient, which refers to the
conductivity measured at 25°C.
>>Application
Used for continuous monitoring and control of conductivity/TDS
values and temperature in aqueous solutions. Widely applied in
power plants, petrochemical, metallurgy, paper industry,
environmental water treatment, light industry and electronics
sectors. Specifically used for monitoring and controlling water
quality in various systems such as: Power plant cooling water,
Make-up water, Saturated water, Condensate water, Boiler water
systems, Ion exchange processes, Reverse osmosis (RO),
Electrodialysis (EDL), Seawater distillation systems. Monitoring
covers both feed water and product water quality in water treatment
equipment.
>>Feature
- Reagent-free operation, pollution-free, and more economical and
environmentally friendly.
- Electrodes made of 316L+POM and PP+AB materials.
- High-quality dedicated sensor cables ensure accurate and stable
signal transmission.
>>Technical Parameter
Power: 9-36V
Output: RS485 MODBUS RTU
Measuring materials: 316L
Shell materials: 316L+POM
Waterproof level: IP65
Range: 0-200μS/cm
Accuracy: ±0.5%F.S
Pressure Rating: ≤0.3Mpa
Temperature sensor: NTC10K
Temperature range: 0-60℃
Calibration: Sample calibration, standard solution calibration
Connection method: 4-core cable
Cable: Standard 10 meter cable
Installation thread: PG13.5
